Analysis on Dynamic Changes of Dry Matter Accumulation and Yield Component Traits in Winter Wheat Variety Shangmai 156
Zhu Qian
Meng Zili
Yan Xiangquan
Ni Xuefeng
Zhu Wei
Abstract：Zhengmai 0943, Zhoumai 27 and Xinong 979 were used as control materials, and high-yield winter wheat variety Shangmai 156 was used as test material to study its dry matter accumulation law and yield component traits. The results showed that Shangmai 156 had large quantities of dry matter before flowering, low distribution proportion in non-economic organs and high distribution proportion in economic organs. Its dry matter accumulation in grains during mature period reached 1. 62 g per stem and increased by 13. 29％, 18. 25％, 19. 12％ compared with Zhengmai 0943, Xinong 979 and Zhoumai 27 with significant differences. The dry matter translocation amount(5 340. 86 kg /hm2), translocation rate (43. 23％) and contribution rate to grain(61. 12％) were the highest after flowering. And the ear number was medium, but the grain number (37. 60) per spike and the thousand kernel weight (42. 30 g) were relatively higher. The yields of different varieties showed as Shangmai 156 > Zhoumai 27 > Zhengmai 0943 > Xinong 979, and that of Shangmai 156 was 5. 67％, 9. 97％ and 18. 85％ higher compared to the control materials respectively. Therefore, enough dry matter source, large sink and smooth transportation was the main factors to achieve high yield for Shangmai 156.
Keywords：Shangmai 156Winter wheatDry matter accumulationYield components
Publication Date：2018-04-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 33-36 )