ACTA AGRICULTURAE BOREALI-SINICA ›› 2008, Vol. 23 ›› Issue (2): 17-20. doi: 10.7668/hbnxb.2008.02.004

Special Issue: Wheat

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The Accumulation Characteristics of Grain Matter and Adjusting Effects of Sowing Date in Semi-winter Wheat with Different Gluten Types

HE Li, YIN Jun, ZHOU Su-mei, ZHANG Chun-li   

  1. Henan Agricultural University, National Engineering Research Center for Wheat, Zhengzhou 450002, China
  • Received:2007-10-11 Published:2008-04-28

Abstract: The matter accumulation characteristics and the moderating effect of sowing date in grain filling stage were studied using three semi-winter wheat varieties with different types of gluten,Jimai 20(strong gluten),Yumai 49(middle gluten)and Zhengmai 004(weak gluten).The results indicated that the grain filling rate of Zhengmai 004 was 14.1% and 24.4% lower than Jimai 20 and Yumai 49,and its 1 000 kernel weight was decreased by 4.87 and 9.85 g,respectively,but its grain starch content was the highest(82.4%),followed by Yumai 49(80.2%)and Jimai 20(78.7%).The ratio of amylose and amylopectin showed the same trend.The postpone of sowing date could promote the grain filling rate during grain formation stage(0-14 d after anthesis),but the grain filling rate declined obviously after 21 d of anthesis.The 1 000 kernel weight of Jimai 20 and Yumai 49 were relatively higher for the second sowing date.Both of the total starch content and the ratio of amlose and amylopectin were inceased by postphoning the sowing date,especially for the last sowing date(p<0.01).

Key words: Wheat, Different types of gluten, M atter accumulation, Sowing date

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Cite this article

HE Li, YIN Jun, ZHOU Su-mei, ZHANG Chun-li. The Accumulation Characteristics of Grain Matter and Adjusting Effects of Sowing Date in Semi-winter Wheat with Different Gluten Types[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(2): 17-20. doi: 10.7668/hbnxb.2008.02.004.

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