The Yield-constituting Index of High-yield Winter Wheat of Different Spike Style

doi:10.3321/j.issn:1000-7091.2002.z1.039

Abstract

Abstract: Though years survey and investigation of plot test and high yielding cultivation,the yield constituting index was done.The result show that the big spike variety should aim at the spike weight,but its rate of bearing is low,so raising the seeding quality to get the wanted spike number per 666 7 m 2 is the right way;the many spike variety should aim at the spike number,but the rate of bearing is large,so reducing the seeding quality to keep it from get down while getting the wanted number is the right way;the middle spike variety should aim at the spike weight,the middle spike variety has the high proposibility to get high yielding so the breeding of super high yielding should choose the middle spike variety.

Key words: Winter wheat, Spike type, High yielding

CLC Number:

S512

SUN Ben-pu, LI Feng-yun, WANG Yong, LI Xiu-yun, ZHANG Jin-bang, WANG Ji-gao, YANG Li-kai, ZHANG Jun-sheng, SUN Ai-mei, LI Meng, TANG Ning, SUN Yong-nian. The Yield-constituting Index of High-yield Winter Wheat of Different Spike Style[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(S1): 178-181. doi: 10.3321/j.issn:1000-7091.2002.z1.039.

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