The Male Ster ity in Wheat Induced by New Gametocides-EK and ES

doi:10.3321/j.issn:1000-7091.1993.z1.004

Abstract

Abstract: Experiments about the effect on male sterility in wheat (Triticum aestivum)induced by 2 new gametocides-EK and ES have been made for 5 years. The results are as follows:1. EK and ES are 2 new excellent gametocides on wheat. The frequencies of male sterility and seed setting percentage reach to 95%-100% and above 80% ,respectively,if 7000×10-6 of EK and 6000× 10-6 of ES are sprayed in dose of 1350 kg/ha from mother cell stage to meiosis stage.2. The 2 chemicals have a significant effect on plant characters particularly on the plant hight and the length of last internode of spicas. All of them can be used in hybrid wheat breeding and hybrid production.3. Four correlative curves have been found which can be utilized to guide hybrid production as well as to anticipate plant characters after spraying.

Key words: Wheat, Gametocide, Male sterility, Setting percentage, Regression equation

Zhao Fengwu, Li Huimin, Li Hongwu. The Male Ster ity in Wheat Induced by New Gametocides-EK and ES[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1993, 8(S1): 16-20. doi: 10.3321/j.issn:1000-7091.1993.z1.004.

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