Effects of Chemical Control on Yield，Quality and Physiological Traits of Winter Wheat

doi:10.7668/hbnxb.2013.S1.027

Abstract

Abstract: To explore the role of chemical control in winter wheat yield cultivation techniques create system,selected wheat varieties Zhongmai 175 and Lunxuan 518 to test for material to study the yield, quality and flag leaf physiol gical changes after different periods of spraying of chemical control Duntianbao .The results show that, Got up period+jointing stage(B2) is more effective in inhibiting the degradation of chlorophyll content and nitrogen content and extend blade function of processing in the later growing stages (35 days),difference was significant;Different chemical treatments on yield and its components significantly, three treatments of spraying chemical control agents were significantly higher than the contro (Nospray); Sedimentation and water absorption are Got up periodjointing stage (B2) significantly higher than BO(No spray),B1(Before winter seedling stage+got up period) two treatments.

Key words: Chemical control, Winter wheat, Grain yield, Quality, Physiological index

CLC Number:

S143

FENG Jin-feng, ZHAO Guang-cai, ZHANG Bao-jun, CHANG Xu-hong, WANG De-mei, YANG Yu-shuang, FAN Zhong-qing. Effects of Chemical Control on Yield，Quality and Physiological Traits of Winter Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(S1): 142-146. doi: 10.7668/hbnxb.2013.S1.027.

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