Effect of residue management and tillage system on accumulation and remobilization of assimilates in wheat (Triticum aestivum L.)

Document Type : Research Paper


1 Ph.D. Candidate, Faculty of Agriculture University of Shahrood, Iran

2 Associate Professor, Faculty of Agriculture University of Shahrood, Iran

3 Professor, Research Center of Agricultural and Natural Resources of Mashhad, Iran


A field experiment was conducted to evaluate the effect of different tillage methods and residue management on physiological properties of wheat at Mashhad Agricultural and Natural Resources Research center of Khorasan Razavi province in 2013-2014. This experiment was arranged in a split plot design based on randomized complete block with three replications. Main factor was tillage systems in three levels (conventional, reduced and no tillage) and sub factor was residue management in three levels (0, 30 and 60%). Length of stem, spike, peduncle, penultimate, length, weight and area of flag leaf were measured. The results showed that tillage systems had significant effect on them. The highest length of stem (91.18 cm), length of spike (10.04 cm), length of peduncle (28.37cm), length, weight and area of flag leaf (22.48 cm, 0.194g, 26.3cm2) were obtained from no-tillage method. Residue management had no significant effect on these treatments. The results showed that tillage systems and residue management had no significant effect on, dry matter transferred from the stem, partitioning assimilates to spike, present of assimilates participation storage before anthesis in seed filling, remobilization efficiency.  Interaction effect tillage system and residue management had significant effect on length of stem. The highest grain yields were obtained under no-till (6912.2 kg/ha) and 60% residue treatment (6980.8 kg/ha). It is concluded that conservation tillage with more residue aboveground could improve wheat yield and some of agronomic properties and so way to revive the resources and stability of the product.


Main Subjects

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Volume 48, Issue 3 - Serial Number 3
December 2017
Pages 737-748
  • Receive Date: 30 September 2015
  • Revise Date: 07 January 2017
  • Accept Date: 11 January 2017
  • Publish Date: 22 November 2017