Dry matter and nitrogen accumulation and remobilization in wheat as affected by genotype and irrigation Academic Article uri icon

abstract

  • 2017 Taylor & Francis Group, LLC To investigate the genotypic differences of dry matter (DM) and nitrogen (N) accumulation and remobilization as well as the photosynthetic characteristics of flag leaf during grain filling under water-limited conditions, nine winter wheat cultivars were planted under two irrigation treatments including W0 (no irrigation applied during spring) and W2 (1500m 3 ha 1 applied 50% at stem elongation and 50% at anthesis). Results showed that cultivar and irrigation significantly affected the accumulation and remobilization of DM and N as well as the photosynthetic characteristics of flag leaf. No irrigation in spring on average decreased the photosynthetic rate of flag leaf, accelerated leaf senescence, and consequently decreased the accumulation of DM and N, but increased the ear distribution ratio and the remobilization and contribution of DM and N in leaf and stem to grain. Maintaining high photosynthetic activity and promoting DM and N distribution in ear and the remobilization of DM and N in leaf and stem may lead to higher grain filling rate and lower yield loss under water-limited conditions in North China Plain.

published proceedings

  • JOURNAL OF PLANT NUTRITION

author list (cited authors)

  • Zhang, Y., Xue, Q., Li, J., Huang, J., Yao, D., & Wang, Z.

citation count

  • 2

complete list of authors

  • Zhang, Yinghua||Xue, Qingwu||Li, Jinpeng||Huang, Jing||Yao, Dexiu||Wang, Zhimin

publication date

  • October 2017