“乙烯利”(2-氯乙基膦酸)是一种有效的小麦化学杀雄剂。用C~(14)标记的“乙烯利”进行示踪结果表明,它易被小麦叶片吸收,并通过输导组织,运转到植株的其他不同部位,尤以进入穗部为多。雌蕊、雄蕊之间分配差异较大。P~(32)根施示踪试验证实,“乙烯利”处理,对小麦植株各部分正常磷代谢有一定的影响,雄蕊的核酸和蛋白质合成受到严重的抑制,从而导致败育;雌蕊部分则受影响较小。“C~(14)-乙烯利”进入小麦植株15天后,经纸层析和放射扫描鉴定,在雌蕊和雄蕊中仍以“C~(14)-乙烯利”形式存在。同时通过人工授粉结实,测定了“C~(14)-乙烯利”在籽粒中的残留情况,初步认为应用“乙烯利”进行小麦化学杀雄制种,对人畜是没有危害的。 “Ethephon” (2-chloroethylphosphonic acid) is a potent wheat chemical killing agent. The tracing with ethephon labeled with C ~ (14) indicated that it was easily absorbed by wheat leaves and transported to different parts of the plant, especially into the panicles, through the transduced tissue. Pistil, stamen distribution between the larger differences. The tracing experiment of P ~ (32) showed that the treatment of “ethephon” had some effects on the metabolism of normal phosphorus in different parts of wheat plants, and the nucleic acid and protein synthesis of stamens were severely inhibited, which led to abortion. Less affected. The “C ~ (14) -etherili” entered the wheat plant for 15 days and was identified by paper chromatography and radio-frequency scanning. It still existed as “C ~ (14) -ethelene” in pistil and stamen. At the same time, we determined the residue of “C ~ (14) - ethephon” in the grain through artificial pollination and fruiting. It was preliminarily believed that the application of “ethephon” for chemical killing of wheat was not harmful to human and livestock.