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小麦杂种优势利用中要有保持系、不育系、恢复系(简称三系),及配套的制种技术等复杂的过程,而化学杀雄剂制种则手续简单,不需要培育三系的繁杂过程,只要选择好化学杀雄剂、掌握其杀雄时间、适合的药剂量、品种(系)组合,筛选强优势组合,一经选育出强优势组合,就可以进行较大面积制种。近年来国内曾对乙烯利、均三嗪二酮等进行了研究,试验结果表明,乙烯利对小麦杀雄效果明显,但对植株有副作用,在生产上应用受到一定限制.
The use of wheat heterosis has to maintain the Department of sterile, restorer lines (referred to as three lines), and supporting seed production technology and other complex processes, and chemical maleicide seed production procedures are simple, do not need to cultivate three lines Complex process, as long as the choice of chemical maleicide to master the time of its killing, the appropriate dose of drugs, varieties (lines) combinations, screening strong combination of advantages, once bred a strong combination of advantages, you can make a larger area. In recent years, ethephon and trimesorinedione have been studied in China. The results showed that ethephon has obvious effect on killing male mice, but it has side effects on plants and its application in production is limited.