اثر تراکم کاشت بر خوابیدگی بوته و مؤلفه‌های عملکرد ارقام برنج

نوع مقاله : مقاله پژوهشی

نویسنده

دانشگاه پیام نور ساری

چکیده

به‌منظور بررسی اثر آرایش کاشت بر خوابیدگی بوته و عملکرد پنج رقم محلی برنج، آزمایشی به‌صورت کرت‌های خرد شده و در قالب طرح بلوک‌های کامل تصادفی با چهار تکرار در مزرعه‌ای واقع در شهرستان بابل در سال 1393 انجام شد. تیمارها شامل پنج رقم طارم محلی، طارم هاشمی، طارم دیلمانی، طارم لنگرودی و سنگ طارم به‌عنوان عامل اصلی و سه سطح تراکم کاشت 40، 80 و 120 بوته در مترمربع به‌عنوان عامل فرعی در نظر گرفته شدند. کمترین تعداد کل خوشه‌چه و تعداد خوشه‌چه پوک در خوشه برای رقم طارم لنگرودی و کمترین تعداد پنجه در بوته و تعداد خوشه در متر مربع به‌ترتیب در رقم‌های طارم محلی و سنگ طارم مشاهده گردید. بیشترین مقاومت به شکستگی و کمترین شاخص خوابیدگی میانگره‌های سوم و چهارم در رقم طارم لنگرودی مشاهده گردید. تعداد کل پنجه در بوته با افزایش تراکم کاشت کاهش یافت در حالی‌که تعداد خوشه در متر مربع به طور معنی‌داری افزایش یافت. تعداد گره، طول میانگره‌های ‌اول و دوم‌، قطر میانگره چهارم و همچنین حرکت خمش میانگره‌های سوم و چهارم با افزایش تراکم روند کاهشی داشتند. حداقل شاخص خوابیدگی میانگره سوم و چهارم (65/199 و 4/241) مربوط به تراکم 80 بوته در مترمربع بود. اثرات متقابل رقم در تراکم کاشت بر کلیه صفات زراعی و خصوصیات مرفولوژیکی وابسته به خوابیدگی اثر معنی‌داری داشت. لذا، بین ارقام مختلف برنج در آرایش‌های مختلف کاشت از نظر شاخص‌های خوابیدگی و عملکرد تفاوت وجود داشت.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effect of planting density on lodging and yield parameters in rice cultivars

چکیده [English]

In order to investigate the effect of planting arrangement on lodging and yield in rice cultivars, a split plot experiment based on randomized complete blocks design was conducted in four replications. The main plot was five rice cultivars (Tarom Mahalli, Tarom Hashemi, Tarom Deylamani, Tarom Langrudi and Sang Tarom) and three plant density (40, 80, 120 plant. M-2) were design as sub-plot. The lowest total spikelet’s and sterile spikelet’s were obtained in Tarom Langrudi and the lowest tiller number per hill and panicle number.m-2 were produced in Tarom Mahalli and Sang Tarom, respectively. Shortest length of first, second and third internode and biggest third internode diameter and also the least plant height were obtained in Tarom Langrudi. As a result the most lodging resistance and the least lodging index for third and fourth internode were produced in Tarom Langrudi. Total tiller numbers were decreased with increasing of plant density but in this case the panicles numbers were increased significantly. Node number, the length first, second internodes, the fourth internode diameter and also the third, fourth internode bending movement were decreased with increasing plant density. Minimum lodging index in the third and fourth internodes were produced in 80 plants per m2. Interaction of variety and planting density had significant effect on all agronomical traits and morphological characteristics that related to lodging traits. Therefore, there were significant differences between different rice cultivars in different planting arrangement.

کلیدواژه‌ها [English]

  • Bending moment
  • Breaking resistance
  • Lodging index
  • Planting density
  • rice
Baloch, A. W., Soomro, A.M., Javed, M. & Ahmed. M. (2002). Optimum plant density for high yield in rice (Oryza sativa L.). Asian Journal of Plant Science, 1(1), 25-27.
Broomand, M., Esfahani, M., Alizadeh, M.R. & Alami, A. (2013). Evaluation of morphological characteristics related to lodging in native and improved rice (Oryza sativa L.) cultivars. Cereal Research, 3(3), 181-195. (In Farsi)
Esfahani, M., Mojtabaie-Zamani, M. & Amiri-Larijani, B. (2009). The Growing Rice Plant- An Anatomical Monograph. University of Guilan Press. Rasht, Iran. 380pp. (In Farsi).
Esfahani, M, Gholami Rezvani, N., Kaabi Rahnama, Sh., Aalimi, A.; Nahvi, M. & Alizadeh, M. R.  (2014) Effect of Seed Rate on Yield and Lodging Related Morphological Traits of Rice cv. Hashemi Direct Seeding Mothods. Journal of Seed and Plant Production. 30(1), 61-85. (In Farsi)
Dastan, S. (2012). Evaluation on agronomic and ecophysiological indices of lowland rice genotypes in modified agronomical methods. Ph.D. Thesis, Islamic Azad University, Science and Research Branch, Tehran 287pp. (In Farsi)
Dastan, S., Siavoshi, M., Zakavi, D., Ghanbari Malidarreh, A., Yadi, R., Ghorbannia, E. & Nasiri, A. (2012). Application of nitrogen and silicon rates on morphological and chemical lodging related characteristics in rice (Oryza sativa) at the north of Iran. Journal of Agriculture Science, Canada, 4(6), 12-18.
Faraji, F., Esfahani, M., Alizadeh, M.R. & Alami, A. (2013). Evaluation of morphological characteristics related to lodging in selected local and improved rice (Oriza sativa L.) cultivars. Iranian Journal of Crop Science, 16(3), 250-264. (In Farsi)
Gholami, M. & Fatehi Abdolmaleki, A (2010) Rice Cultivars, Publication of Agricultural Researches, Education and Extension Organization, 108. (In Farsi).
Gholami Rezvani, N., Esfahani, M., Kabii Rahnama, Sh., Alami, A., Nahvi, M. & Alizadeh, M.R. (2013). Effect of seed rate on yield and lodging related morphological traits of rice cv. Hashemi in direct seeding methods. Seed and Plant Production Journal, 2-30(1), 61-85. (In Farsi)
10. Haji, Christodoulou, A. (1991). The relationship of grain yield with harvest index and total biological yield of barley in dryland technical Bulletin No. 126. Agricultural Institute. Nicosia, Gyprus.
11. Hamidulsalam, M. & Altafhossain, S. M. (2002). Effect of fertilization and planting density on the yield of two varieties of fine rice, Pakistan Journal of Biological Sciences, 5(5), 513-516.
12. Hoshikawa, K. & Wang, S. B. (1990). Studies lodging in rice plants. I. A general observation on lodged rice culms. Japan Journal of Crop Science, 59, 809–814.
13. Islam, M. S., Peng, S., Visperas, R., Ereful, N., Bhuiya, M. S. U. & Julfiquar, A.W. (2007). Lodging- related Morphological traits of hybrid rice in a tropical irrigated ecosystem. Field Crops Research, 101, 240-248.
14. Jones, L., Ennos, A. R. & Turner, S. (2001). Cloning and characterization of irregular xylem4 (irx4): a severely lignin-deficient mutant of Arabidopsis. Plant Journal, 26, 205-216.
15. Kashiwagi, T. & Ishimaru, K. (2004). Identification and analysis of a locus for improvement of lodging resistance in rice. Plant Physiol, 134, 676-683.
16. Kashiwagi, T., Sasaki, H. & Ishimaru, K. (2005). Factors responsible for decreasing sturdiness of the lower part in lodging of rice (Oryza sativa L.). Plant Production Science, 8(2), 166–172.
17. Kashiwagi, T., Madoka, Y., Hirotsu, N. & Ishimaru, K. (2006). Locus prl5 improves lodging resistance of rice by delaying senescence and increasing carbohydrate re-accumulation. Plant Physiology and Biochemistry, 44, 152-157.
18. Laza, M. R. C., Peng, S., Sanico, A. L., Visperas, R. M. & Akita, S. (2001). Higher leaf area growth rate contributes to greater vegetative growth of F1 rice hybrids in the tropics. Plant Production Science. 4(3), 184–188.
19. Mobasser, H. R., Mohseni, Delarestagh., M, Khorgami., A, Barari, Tari, D. & Pourkalhor, H. (2008). Effect of planting density on agronomical characteristics of rice varieties in North of Iran. Pakistan Journal of Biological Sciences, 3208-3209.
20. Tang, W. & Qingfa, W. U. (2000). Effect of sowing density and fertilizer application on hybrid carly rice cultivar. Zhegiang Nongue Kexue, 6, 269-273.
21. Yadi, R., Siavoshi, M., Mobasser, H.R., Dastan, S. & Nasiri, A.R. (2012). Effect of plant density on morphologic characteristics related to lodging and yield components in different rice varieties (Oryza sativa). Journal of Agriculture Science, Canada 4(1), 31-38.
22. Yang, J., Zhang, J., Wang, Z. & Zhu, Q. (2001). Activates of starch hydrolytic enzymes and sucrose-phosphate synthase in the stems of rice subjected to water stress during grain filling. Journal of Experimental Botany, 52, 2169-2179.
Yoshinaga, S. (2005). Improved Lodging Resistance in Rice (Oryza sativa L.) cultivated by submerged direct seeding using a Newly Developed Hill Seeder. JARQ 39(3), 147-152 (2005) http://www.jircas.affric.go.jp