Control of Redroot Pigweed in Greenhouse with Oxyflourfen and Determining the Rate and Time of this Herbicide in Controlling Soybean Weeds
rahmat
abbasi
دانشجوی سابق دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران و استادیار دانشگاه مازندران
author
hassan
alizade
استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
text
article
2012
per
In order to investigate the efficacy of split, reduced and whole rates of oxyfluorfen in controlling redroot pigweed (Amarnthus retroflexus) and also to evaluate possible soybean (Glycine max) injuries a experiment was conducted in research greenhouses of Karaj Collage of Agriculture, University of Tehran in 2005. Treatments included oxyfluorfen doses at 0.25, 0.5, 0.75 and 1 L/ha in one stage spraying (3-4 foliage redroot pigweed, V2 soybean) and split values 0.25+0.25, 0.35+0.35 and 0.5+0.5 of this herbicide in 2 stages spraying (first stage was before noted time, and second stage was 2 weeks after first spraying). Results revealed significant differences between herbicides treatments with redroot pigweed dry weight, soybean biomass and yield, and percentages of injury 2 weeks after treatment. The highest reduction for all above attributes was observed at 1 Lit/ha. Oxyfluorfen at this dose controlled redroot pigweed by 90%, but also reduced biomass and yield of soybean by 50%. All split rates reduced weed biomass as much as whole rates did. However, soybean yield reduction was lower at split rates than those of whole rates. Reduced rate of 0.25 L/ha had no significant effect on both weed and soybean. Applying split rate of oxyfluorfen at 0.35 L/ha twice at biweekly interval was the most efficient treatment. Herein, although the dry weight of weed was reduced by 80%, soybean yield decreased only 20%. In addition, in order to investigate the appropriate rate and time of application of oxyfluorfen for soybean weed control a field experiment was conducted at the research farm of collage of Agriculture of University of Tehran during 2004-2005. Treatments included oxyfluorfen at 0.75, 1 and 1.25 L/ha at soybean growth stages of V2, V3 and pre emergence (Pre). Weed free and weedy treatments were also included. There were significant differences between treatments with weed density and dry weight. Oxyfluorfen applied pre at 0.75 L/ha had the lowest efficiency (72%) to reduce weeds dry weight, followed by oxyfluorfen at 1.25 L/ha when applied at V2 soybean growth stage. In most treatments due to the phytotoxic effects of herbicide on soybean, the seed yields even were lower than whole season weed infested treatment. Finally, the highest seed yield (1972 Kg/ha) was achieved at 0.75 L/ha when applied at V2 soybean growth stage.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
1
9
https://ijfcs.ut.ac.ir/article_24873_41ae0a0df8251d508d43bc85c1062daf.pdf
dx.doi.org/10.22059/ijfcs.2012.24873
Emergence Prediction of Flixweed (Descurania Sophia) and common Lambs quartes (Chenopodium album) using thermal model
maryam
akrami
دانشجوی کارشناسی ارشد دانشگاه آزاد اسلامی، واحد کرج
author
saeed
vazan
دانشیار دانشگاه آزاد اسلامی، واحد کرج
author
mostafa
oveysi
استادیار پردیس ابوریحان، دانشگاه تهران
author
Mohammad
noghabi
دانشیار موسسه تحقیقات چغندرقند
author
text
article
2012
per
Prediction of seasonal weed seedling emergence patterns is useful in weed management programs. This study was carried out in research fields of Islamic Azad University – Karaj Branch in 2009-2010. Five crop fields were chosen including: barley, sugar beet and three wheat fields and in each fields between 3 to 5 sites selected randomly. Three quadrates were fixed in each sites for studying weeds emergence. Weeds emergence was weekly measured during growth season. Three models including logistic, gompertz, and weibull, were used to describe weed seedling emergence against thermal time. Gompertz model showed the best fit to data. Flix weed emergence in barely field started after receiving 5 GDD and reached maximum emergence after 190 GDD. Also in wheat fields with similar canopy, weed seedling emergence started in the same time. Although weed seedling emergence in these fields was started in 60 GDD and reached maximum emergence after 260 GDD, however weed seedling emergence of common Lambs quartes in wheat fields didn’t show similar patterns. In conclusion, growth rate of common lambs quartes increased to the maximum rate with receiving less GDD in compare to flixweed. This phenomenon may be related to their different phonological characteristics of two weeds.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
11
18
https://ijfcs.ut.ac.ir/article_24874_2a42fd503e4dd05d4223239bc5ec94fd.pdf
dx.doi.org/10.22059/ijfcs.2012.24874
Effects of wheat residue and different densities of sunflower on weed biomass and sunflower (Helianthus annus L.) yield.
mojtaba
hosseini
دانش¬آموخته کارشناسی ارشد دانشکده کشاورزی دانشگاه بیرجند،
author
gholamreza
zamani
استاد دانشکده کشاورزی دانشگاه بیرجند،
author
hasan
alizadeh
استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
seyedvahid
eslami
استادیار دانشکده کشاورزی دانشگاه بیرجند،
author
text
article
2012
per
Field experiment was conducted to assess the efficacy of wheat residues and different densities of sunflower in weed control during 2007 growing season. The experimental design was a randomized complete block with three replications. The experiment was set up in factorial arrangement, amount of 0, 1250, 2500, 3750, 5000 Kg ha-1 of wheat residue and burning of residue (5000 kg ha-1) were the levels of factor A and three densities of sunflower consisting of 50000, 70000 and 90000 plants ha-1 were factor B. During growth season measurement of weed biomass and weed height in 3, 6 and 9 week after planting was conducted. Increasing amounts of wheat residue and sunflower density decreased weeds biomass and height. 71.8, 73.17 and 87.48 percent of weed biomass reduction occurred with increase in wheat residue at 3, 6 and 9 weeks after planting, respectively. Also increasing sunflower density from 50000 to 90000 Plants ha-1 decreased the weeds canopy height. Sunflower grain yield increased 29.86 and 31.73 percent with increasing wheat residue and sunflower density, respectively. Applying 2500 kg.ha-1 wheat residue integrated with sunflower planting at density of 90000 plants ha -1 can give an effective control of weeds and can be an alternative to cut herbicide use.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
19
28
https://ijfcs.ut.ac.ir/article_24875_838ccfac6bdc1343c8b352a12ea94b3e.pdf
dx.doi.org/10.22059/ijfcs.2012.24875
Influence of Water Stress and Nitrogen Levels on Seed Yield and Yield Components in Two Red Kidney Bean Genotypes
arash
mohammadzadeh
دانشجوی کارشناسی ارشد پردیس کشاورزی و منابع طبیعی، دانشگاه تهران
author
naser
majnoon hosseini
استاد پردیس کشاورزی و منابع طبیعی، دانشگاه تهران
author
hossein
moghadam
استادیار پردیس کشاورزی و منابع طبیعی، دانشگاه تهران
author
mahdi
akbari
دانشیار موسسه تحقیقات فنی و مهندسی کشاورزی
author
text
article
2012
per
To study the effects of different levels of water stress and nitrogen fertilizer on seed yield and yield components of two common bean genotypes (Phaseolus vulgaris), an experiment in a split plot factorial based on CRBD with four replications was conducted at the research farm of University of Tehran (Karaj-Iran) in 2010. Water stress treatments as the main factor included normal irrigation (60 mm evaporation from open pan), mild and sever water stress (90 and 120 mm evaporation from open pan, respectively) at fourth leaf stage. Nitrogen fertilizer at four levels comprised of zero, 50, 100 and 150 kg N/ha and two red kidney bean genotypes (namely, Akhtar and D81083) were allocated as sub plots in a factorial arrangement. The results indicated that water stress decreased pods/plant, seeds/pod, 100 seed weight, seed yield, total dry matter, harvest index and plant height, significantly (p ? 0.05), but increased seed protein. Nitrogen fertilizer application also increased plant traits, significantly, except for the seeds/pod and harvest index. The two bean genotypes were different in their characteristics excluding the seeds/pod and seed protein content, however, the seed yield was comparatively higher in D81083 than Akhtar genotype. The interaction effects of water stress × genptype on bean seed yield under normal irrigation and severe drought stress was recorded for D81083 and Akhtar genotypes, respectively. Similarly, the interaction effects of water stress × nitrogen on bean seed yield under normal irrigation with 150 kg N/ha and under severe drought stress without nitrogen was higher and lower, respectively
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
29
38
https://ijfcs.ut.ac.ir/article_24876_a48ddf3577d4890f7d22950c71003d9a.pdf
dx.doi.org/10.22059/ijfcs.2012.24876
Effects of on-Farm Seed Priming and Sowing date on Seedling Emergence, Biological Yield and some Physiological Indices of Corn (S.C.260) in Hamedan
rana
moosavi
دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه بوعلی سیا همدان
author
mohammad ali
abootalebian
استادیار دانشکده کشاورزی دانشگاه بوعلی سینا همدان
author
ali
sepehri
استادیار دانشکده کشاورزی دانشگاه بوعلی سینا همدان
author
akram
mahdizadeh
دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه بوعلی سیا همدان
author
text
article
2012
per
To evaluate the effects of on-farm seed priming treatments and sowing dates on rate and percentage of seedling emergence, biological yield and some physiological indices of corn hybrid (SC. 260) an experiment was conducted in Hamedan, Iran in 2010. A split plot in a randomized complete block design with three replications was conducted. Main plots include three sowing dates (early, on-time and late seeding time) and subplots were representative of four on-farm seed priming treatments (priming with tap water, urea, and zinc solutions and non-priming). Results showed that priming with zinc and urea solutions in the first date increased emergence rate. Percentage of emergence was increased by zinc solution and tap water at the first sowing date, while in the second sowing date using urea and zinc solutions increased percentage of emergence. However, in the third sowing date only urea solution was effective. The highest of maximum crop growth rate was achieved in the first and third sowing dates with tap water and zinc solution. All priming treatments were higher in maximum leaf area index than the non-primed treatment. In the first sowing date, all priming treatments exhibited higher biological yield especially in tap water and urea solution. Finally, the SPAD numbers in all priming treatments in the first and third sowing dates were higher than non-primed treatment. Generally, it was concluded that in Hamadan, seed priming especially with tap water and urea solution could help early seeding of corn plant and to avoid early chilling damage in autumn
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
39
49
https://ijfcs.ut.ac.ir/article_24877_950ab970df76222d9360c84e6abeeb5e.pdf
dx.doi.org/10.22059/ijfcs.2012.24877
The Response of Pearl Millet Root (Pennisetum Americanum L.) to Drought Stress and Re-Watering
mina
rostamza
دانشجوی سابق دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
mohammad reza
chayichi
دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
mohammad reza
jahansooz
دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
text
article
2012
per
To evaluate the effects of drought stress and re-watering on nodal roots initiation and growth, two glasshouse experiments were conducted in Commonwealth Scientific and Industrial Research Organization (CSIRO) in Australia during 2008-2009. The experimental designs in both experiments were factorial in a randomized complete block design with two factors. First factor was drought stress and second one was harvest time after re-watering (one day before re-watering and one, three and six after re-watering). Drought stress treatments were control (no drought stress) and watering after 40% of control moisture reached (mild stress) and control (no drought stress) and watering after 25% of control moisture reached (severe stress) in the first and second experiment, respectively. In both mild and severe stress treatments, total dry matter (TDM) showed a reduction compared to control. In plants harvested six days after re-watering, TDM decreased by 37 and 52.3% in mild and sever stress, respectively. Number, length and dry matter of nodal roots decreased in both drought stress treatments compared to control. The reduction in TDM of nodal roots in mild and sever stress treatments was 34 and 56 % compared to control, respectively. In conclusion, drought stress in any level could limit the initiation and growth of nodal roots and increasing in drought stress severity could delay the required period for recovery of plant.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
51
60
https://ijfcs.ut.ac.ir/article_24878_2ed3a33f48a56bc520203d737a4c79c1.pdf
dx.doi.org/10.22059/ijfcs.2012.24878
Genetic Analysis of Yield and Agronomic Traits in Bread Wheat (Triticum aestivum) under Normal and Drought Stress Conditions
zahra
shirkavand
دانشجوی سابق کارشناسی ارشد پردیس ابوریحان دانشگاه تهران
author
mohsen
ebrahimi
استادیار پردیس ابوریحان دانشگاه تهران
author
mohammad reza
bihamta
استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
reza
amiri
دانشیار پردیس ابوریحان دانشگاه تهران
author
goodarz
najafian
دانشیار پژوهشی موسسه تهیه و اصلاح نهال و بذر
author
hossein ali
ramshini
استادیار پردیس ابوریحان دانشگاه تهران
author
text
article
2012
per
Drought stress is one of the most important environmental stresses that affect yield of bread wheat strongly. Considering that the yield achieved with the interaction of a large number of plant traits and environment, so the morphological and agronomical traits, can serve as selection criteria under environmental conditions. By genetic analysis and estimation of inheritance and mode of gene action of yield-related traits, we can determine effective breeding methods specifically under drought stress conditions. For this reason, 2 crosses Kavir×Shiraz and Azar2×Shiraz were performed (Shiraz is a susceptible cultivar, while Azar2 and Kavir are tolerant cultivars). F1, F2, BC1, BC2 generations obtained and along with their parents were planted in a randomized complete block design with three replications under drought stress condition. Various agronomic traits such as number of tiller, length of plant, length of main spike, length of peduncle, weight of plant, weight of main spike, weight of tiller, number of grains in main spike, 1000-grain weight, date of maturity and harvest index were measured. Results of weighted analysis of variance showed significant difference between generations for all traits. Generation mean analysis was performed. In more traits, in addition to additive and dominant effects, epistasis effects and additive× additive effects were added to the model. In traits of weight of plant, weight of stem, number of grains in main spike, and date of maturity, dominant effects was more than additive effects. Therefore, breeding of these traits is not useful and hybridization is better. For 1000-grain weight that additive effects was more than dominant effects, can use various selective methods for breeding. In traits of 1000-grain weight, number of grains in main spike, date of maturity, both of selective-based and hybrid-based methods are useful. Mean of heritabilities in stress and non-stress condition were 0.592 and 0,517. Estimation of broad, narrow sense heritabilities and mode of gene action indicated that selection for improvement of traits studied in stress condition will be suitable and traits such as length of plant and spike, weight of shoot, date of maturity, and harvest index can be used as indirect selection criteria for improving grain yield under drought stress condition. Genetic control of number of tiller, length of plant, length of peduncle and number of grains in main spike was not similar.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
61
80
https://ijfcs.ut.ac.ir/article_24879_66bc2ea12d2b0c10af877981f6c5b510.pdf
dx.doi.org/10.22059/ijfcs.2012.24879
Interrelations of some Antioxidants, Physiological Characteristics and Grain Yield of Sesame (Sesamum Indicum L.) Under Different Irrigation Regimes
javad
nooripoor
دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه صنعتی اصفهان
author
parviz
ehsanzadeh
دانشیار دانشکده کشاورزی دانشگاه صنعتی اصفهان
author
text
article
2012
per
Water deficit stress is the most important environmental constraint for growth, yield and productivity of crops, including the oil seed crops. This study was aimed at studying the influence of differing irrigation régimes on growth, chlorophyll , proline and some antioxidants content along with grain yield, yield components and oil content of sesame genotypes using a 4-replicate split plot randomized complete block design at Shervedan Research Farm, Isfahan University of Technology, Iran in 2009. Irrigation levels based on evaporation from a standard class-A pan served as main plots and included I1 as control (75 mm), I2 as moderate stress (110 mm) and I3 as severe stress (145 mm). Four sesame genotypes served as sub plots and included Oltan, Naz-Takshakheh, Varamin and Yekta. Leaf chlorophyll, proline, catalase (CAT) and ascorbate peroxidase (APX) antioxidant content, leaf area index (LAI) at pod formation, pod/plant, seed/pod, 1000-seed weight, grain and biological yield and oil percent were measured. The I1 and I3 irrigation levels produced the greatest (2.53) and smallest LAI, respectively. I1 level of irrigation out yielded the I3 level in terms of pod/plant, seed/pod and grain yield by 44% (91.97), 14% (54.78) and 28%(1481.02 kgha-1), respectively. I1 and I3 levels of irrigation indicated the greatest (7397.4 kgha-1) and smallest (5890.4 kgha-1) biological yield, respectively. I2 level of irrigation led to 35% and 40% increase in CAT and APX but I3 decrease the activity of the latter enzymes by 29% and 11% respectively, compared to the I1 level of irrigation. It could be concluded that severe water deficit decreases grain yield and growth of sesame genotypes, and the reduction is mainly due to the photosynthetic surfaces, rather than chlorophyll concentration. It seems that CAT and APX play significant antioxidative roles under moderate water deficit, but they cannot play such a role when sesame genotypes are severely stressed.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
81
91
https://ijfcs.ut.ac.ir/article_24880_e075981e0cac48e9df2c7b711c89dcb5.pdf
dx.doi.org/10.22059/ijfcs.2012.24880
Study of Changes of Cold-Induced Proteins during Transition of Vegetative to Reproductive Stages in Winter Wheat under Field Conditions
mohsen
jan mohammadi
استادیار دانشگاه مراغه
author
reza
tavkol afshari
استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
sirus
mahfuzi
دانشیار موسسه تهیه و اصلاح نهال و بذر کرج
author
hooshang
alizadeh
استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
text
article
2012
per
Phase transition from vegetative to reproductive growth is an important character for winter wheat under cold conditions because it decreases the ability of wheat plants to maintain frost tolerance. Reproductive development in winter wheat is triggered by fulfillment of vernalization requirements. This study was conducted to determine the inter-relationship between developmental stages and freezing tolerance. Using proteomic analysis, an investigation aimed at a better understanding of the proteins changes during the vegetative/reproductive phase transition was carried out in a hardy (Norstar) wheat cultivar under field conditions in the cold (Zanjan and Firoozkuh) and moderate (Karaj) regions of Iran. Proteins were extracted from the leaves, collected from plants during three different growth stages including T1: vegetative growth when plants increased their frost tolerance (23-Nov), T2: vernalization saturation point when plants acquired to maximum frost tolerance (21-Dec) and T3: after vegetative/reproductive phase transition and reduction in freeze tolerance (21-Feb). Change in protein expression was detected by two dimensional (2-D) gel electrophoresis. Approximately 400 protein spots were reproducibility separated and visualized on CBB-stained 2-D gels. Spot analysis showed that 307 proteins significantly changed during investigated times. Spot identification was performed by MALDI-TOF and ESI-MS/MS. Comparison of proteins changes among different locations exhibited significant variations. Comparing proteoms between Karaj and Zanjan during cold acclimation exhibited higher accumulation of cold-induced proteins in Zanjan. Proteoms comparison between Karaj and Firoozkooh detected higher accumulation of proteins involved in glycolysation. 22% of identified proteins were located in chloroplast which emphasize that this organelle has an important role during the cold acclimation and phase transition. The most changed proteins mainly participate in photosynthesis, glycolysis, protein folding, redox homeostasis, transcription, translation, amino acid biosynthesis, ATP synthesis and ion transport. Expression profile of some identified proteins such as cell division control protein, asparagine synthase, RuBisCO activase, actin, heat shock protein 70, cp31BHv, serpin, fructose-bisphosphate aldolase, MADS-box transcription factor 26 and Ps16 during the investigated stages were similar to LT tolerance trend. These proteins might work cooperatively to establish a new homeostasis under cold stress.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
93
111
https://ijfcs.ut.ac.ir/article_24881_07370db66ad011b46970839aa0ced5d1.pdf
dx.doi.org/10.22059/ijfcs.2012.24881
Genotypes Performance of Brassica Species under Saline Conditions using Salt Tolerance Indices
arman
azari
دانشجوی دوره دکتری دانشگاه تربیت مدرس تهران
author
seyed ali mohammad
modares sanavi
استاد دانشگاه تربیت مدرس تهران
author
amin
anaghli
مربی پژوهشی مرکز ملی تحقیقات شوری یزد،
author
seyed ali mohammad
cheraghi
استادیار پژوهشی مرکز ملی تحقیقات شوری یزد،
author
mahmood
gholami
مربی پژوهشی مرکز ملی تحقیقات شوری یزد،
author
hossein
askari
استادیار دانشکده مهندسی فناوری¬های نوین دانشگاه شهید بهشتی
author
bahram
alizadeh
استادیار موسسه تحقیقات اصلاح و تهیه نهال و بذر کرج
author
kamal
sadat asilan
استادیار دانشگاه پیام نور، تهران،ایران
author
text
article
2012
per
A two years (2006–2007 and 2007-2008) experiment was conducted at National Salinity Research Center, Yazd, to evaluate salt-tolerant genotypes of Brassica napus, B. rapa and B. juncea. To screen genotypes in the first growing season, 58 genotypes were grown under two irrigation water salinity levels of 2 and 12 dS m-1 in an augmented randomized complete block design with six replicated checks. Nineteen genotypes were screened based on salt tolerance indices from the first growing season. In the second growing season, these screened genotypes were arranged in a split plot experiment in three randomized complete blocks with two irrigation water salinity levels of 2 and 12 dS m-1. Stress tolerance index, arithmetic mean, geometric mean and harmonic mean correlated significantly with grain yield under stress and non-stress conditions, showing that these indices are more efficient to recognize salinity resistance. Three-dimensional and cluster plots and bi-plot analysis showed that Hyola401 and Hyola420 were the most salt-resistance genotypes following by Option501 and RGS003. In addition, CVRoby, Elite, Milena, Okapi, SLM and Zarfam had low yield performance under salt stress. In general, B. napus indicated greater resistance to salinity than other species.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
113
127
https://ijfcs.ut.ac.ir/article_24882_1101a634b32cbd1d5df323fd06e53b27.pdf
dx.doi.org/10.22059/ijfcs.2012.24882
Effects of Plant Growth Promoting Rhizobacteria and Nitrogen Fertilizer on Yield and Yield Components of Maize
aida
behzad
دانشجوی سابق کارشناسی ارشد، دانشگاه آزاد اسلامی، واحد کرج
author
davood
habibi
استادیار،دانشگاه آزاد اسلامی، واحد کرج
author
farzad
paknejad
دانشیار دانشگاه آزاد اسلامی، واحد کرج
author
ahmad
asgharzadeh
استادیار موسسه تحقیقات خاک و آب،
author
mohammad
abdollahian noghabi
دانشیار و عضو هیئت علمی موسسه تحقیقات چغندرقند کرج، ایران
author
text
article
2012
per
To evaluate the effects of plant growth promoting rhizobacteria (PGPR) such as Azotobacter chroococcum, Azospirillum lipoferom and brasilence and Pseudomonas fluorescens and nitrogen fertilizer from urea source on yield and yield components of maize (Zea mays L.) double cross hybrids (DC 370), a field experiment was carried out in a factorial experiment (5*3) in RCBD with 4 replications. Bacterial were treated at 5 levels including, B0= no inoculation (control), B1= Azotobacter + Azospirillum, B2= Azospirillum+ Pseudomonas, B3= Azotobacter + Pseudomonas and B4= Azotobacter + Azospirillum + Pseudomonas and urea fertilizer with zero (control), 100 and 200 kg/ha as the nitrogen treatments. The results showed that the highest increase traits in plants growth promoting rhizobacteria related to Azotobacter + Pseudomonas treatment that increased grain yield, biological yield, number of rows per ear, cob yield and cob yield per plant by 23.8%, 22.7%, 6.2%, 26.9% and 19.8%, respectively. Nitrogen fertilizer related to 200 kg/ha urea increased grain yield, biological yield and thousand kernel weight by 17.8%, 18.7% and 3.2%, respectively. The interaction of bacteria and nitrogen fertilizer treatments was detected. Azotobacter + Pseudomonas treatment had the most effect on most of these traits necessarily in the presence of 200 kg/ha urea, but the combined use of Azotobacter, Azospirillum and Pseudomonas increased these traits without needing urea and application of urea caused decrease proficiency of this rhizobacteria.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
129
137
https://ijfcs.ut.ac.ir/article_24883_828ad95434e07a1d1bf8ad0a3ee89a9f.pdf
dx.doi.org/10.22059/ijfcs.2012.24883
The Study of Proteomic Responses of Hordeum bulbosom to Salinity Stress
foad
fatehi
دانشجوی سابق دکتری،پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
abdolhadi
hosseinzadeh
دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
hooshang
alizadeh
استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران
author
text
article
2012
per
A proteomic approach was conducted to further understand the mechanism of plant responses to salinity in Hordeum bulbosom. Three-week-old seedlings were treated with 300 mM of NaCl for 21 days. Total proteins of fourth leaf were extracted and separated by two-dimensional gel electrophoresis. More than 500 protein spots were reproducibly detected, including 46 spots that were up-regulated and 16 spots down-regulated. Using MALDI-TOF-TOF MS, 20 proteins involved in many cellular functions were identified. These proteins include: oxygen-evolving enhancer protein, rubisco, putative glycine decarboxylase, ribosomal protein, profilin, germin-like protein or oxalate oxidase-like protein, proxyredoxin, translationally-controlled tumor protein homology, nucleoside diphosphate kinase (NDPK), thioredoxin, dehydroascorbate reductase, 2-cys peroxiredoxin, replication factor c, and sucrose synthase. Identified proteins are involved in different metabolic pathway, such as; energy metabolism, photosynthesis, redoxin, translation, transcription, signaling, osmolite synthesis, cell wall and replication factor.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
139
150
https://ijfcs.ut.ac.ir/article_24884_6a1ceb95c08085f917071a738cc16cef.pdf
dx.doi.org/10.22059/ijfcs.2012.24884
Responses of Yield, Yield Components and Drought Resistance Indices in Bread and Durum Wheat Cultivars to Post-Anthesis Drought Stress
hedayatollah
karimzadeh
دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه شیراز
author
yahya
emam
استاد دانشکده کشاورزی دانشگاه شیراز
author
saeed
moori
دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه شیراز
author
text
article
2012
per
Wheat grain yield is adversely affected by post-anthesis drought stress conditions in most wheat growing areas of Iran. To evaluate the effect of late drought stress on wheat cultivars, a field experiment was conducted as split plot in a completely randomized block design with four replications at experimental farm of Collage of Agriculture, Shiraz University during 2009-2010 growing season. Irrigation regime (normal and cut off after flowering) and wheat cultivars were in main plots and subplots, respectively. There were ten bread wheat and five durum wheat cultivars. The result showed that post-anthesis drought stress reduced biological yield, grain yield, number of grain per spike, 1000 grain weight, and harvest index significantly. Maximum grain yield in the normal irrigation and late season drought stress was detected in Moghan2 and Shiroudi, respectively. Mean productivity (MP), geometric mean productivity (GMP) and stress tolerance index (STI) showed positive and significant correlation with yield in both stress and non-stress conditions. It appeared that MP, GMP and STI were appropriate indices for selection of cultivars resistant to late season drought stress conditions. In this experiment, Moghan2 and Adl cultivars showed higher potential yield as well as greater relative resistance to late season drought stress.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
151
162
https://ijfcs.ut.ac.ir/article_24885_1b5f343dbdc48f3392f12f83520f3aa1.pdf
dx.doi.org/10.22059/ijfcs.2012.24885
Relationships of some Economically Important Traits with Storage Proteins in Common Bean (Phaseolus vulgaris L.)
mostafa
valizade
استاد، دانشکده کشاورزی دانشگاه تبریز
author
farzaneh
shariati
دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه تبریز
author
hooshang
alyari
استادیار دانشکده کشاورزی دانشگاه تبریز
author
sajad
moharamnejad
دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه تبریز
author
text
article
2012
per
In order to evaluate the genetic diversity of common bean (Phaseolus vulgaris L.) and the relationships between studied characteristics with seed storage proteins, 60 genotypes with three colors (white, red and pinto bean) were studied using an augmented design with three blocks and four varieties as controls. The majority of studied traits were significantly different between large and small seeded beans. Significant and positive correlations were observed between number of pods per plant, 100 weight and number of seeds per pod and grain yield. Seed storage proteins were prepared by consecutive extraction of salt soluble proteins and the proteins were separated by SDS-PAGE procedure and two different banding patterns were observed. Analysis of variance and multivariate method of Hoteling,s T2 test showed that there were significant differences between presence and absence of some proteins for 100 seed weight, number of seeds per pod and other characteristics of seed and pod. Cluster analysis, using UPGMA procedure, based on seed storage proteins banding pattern in 60 genotypes formed two groups. First group contained all genotypes of white and red beans except two genotypes and second group contained all genotypes of pinto bean with two genotypes of red bean.
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
163
173
https://ijfcs.ut.ac.ir/article_24886_386dbcac0da3d4e4c7f88389a4f94937.pdf
dx.doi.org/10.22059/ijfcs.2012.24886
Determination of Advanced Drought Tolerant and Breeder Lines in Hordeum vulgare L. under Kermanshsh Conditions
rambod
abiri
دانش آموخته کارشناسی ارشد دانشگاه آزاد اسلامی واحد کرمانشاه
author
alireza
zebarjadi
دانشیار گروه پژوهشی بیوتکنولوژی مقاومت به خشکی دانشگاه رازی
author
mokhtar
ghobadi
دانشیار گروه پژوهشی بیوتکنولوژی مقاومت به خشکی دانشگاه رازی
author
amir keivan
kafashi
استادیار مرکز تحقیقات کشاورزی و منابع طبیعی کرمانشاه
author
narges
atabaki
دانش آموخته کارشناسی ارشد گیاهپزشکی دانشگاه رازی
author
text
article
2012
per
To evaluate the genetic variation of advanced and breeder lines of barley and to identify drought tolerant genotypes, 20 genotypes were tested in a randomized completely block design (RCBD) with three replications under two different water regimes (Irrigated and rainfed) in College of Agriculture, Razi University during 2007-2008 sowing season. The results of ANOVA showed that there were significant differences between grain yields (Yp and Ys) and some drought resistance indices such as mean productivity (MP), geometric mean productivity (GMP), harmonic mean (HAM), stress tolerance index (STI), yield index (YI) (p
Iranian Journal of Field Crop Science
Faculty of Agriculture, University of Tehran
2008-4811
43
v.
1
no.
2012
175
188
https://ijfcs.ut.ac.ir/article_24887_633f19687bdeb99d3b809b64534df05f.pdf
dx.doi.org/10.22059/ijfcs.2012.24887