SEX EXPRESSION IN CUCUMBER PLANTS AS AFFECTED BY 2-CHLOROETHYLPHOSPHONIC ACID, ETHYLENE, AND GROWTH REGULATORS
SEX EXPRESSION IN CUCUMBER PLANTS AS AFFECTED BY 2-CHLOROETHYLPHOSPHONIC ACID, ETHYLENE, AND GROWTH REGULATORS
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DOI：
10.1104/pp.46.3.412
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发表时间：
1970-01-01
期刊：
影响因子：
7.4
通讯作者：
SMITH, OE
中科院分区：
文献类型：
--
作者：
IWAHORI, S;LYONS, JM;SMITH, OE
研究了乙烯利、乙烯和几种生长延缓剂对黄瓜性别表达的影响。在第一至第三叶期以50毫克/升的浓度施用乙烯利，可使雌性增加，但在子叶期施用则无效。施用时间越晚，第一朵雌花出现的节位越高。无论施用时间如何，雌花的总数大致相同。赤霉素A4和A7混合物引起雄性，乙烯利引起雌性。然而，当在第一叶期组合施用时，相互作用不显著。因此，乙烯利和赤霉素似乎不是拮抗性的，而是有不同的作用位点，尽管它们对性别表达有相反的影响。N-二甲氨基琥珀酰胺酸（Alar）、2-氯乙基三甲基氯化铵（CCC）、2，4-二氯苄基三丁基氯化磷（Phosphon D）和脱落酸对黄瓜性别表达没有影响。
The effects of 2-chloroethylphosphonic acid (Ethrel), ethylene, and some growth retardants on sex expression of cucumber plants (Cucumis sativusL.) were investigated, with the use of a monoecious cultivar (Improved Long Green) which has a strong tendency toward maleness.Ethrel caused increased femaleness when applied at 50 milligrams per liter at the first to the third leaf stage, but when applied at the cotyledon stage it was ineffective. The later the time of application, the higher the node at which the first female flower appeared. The total number of female flowers was about the same regardless of application time. A mixture of gibberellins A4and A7caused maleness, and Ethrel caused femaleness. However, when applied in combination at the first leaf stage the interaction was not significant. It seems, therefore, that Ethrel and gibberellins are not antagonistic but rather have different sites of action, although they have opposing effects on sex expression.Ethylene caused femaleness but was far less effective than Ethrel. Alar (N-dimethylaminosuccinamic acid), CCC((2-chloroethyl)trimethylammonium chloride), Phosphon D(2, 4-dichlorobenzyl-tributylphosphonium chloride), and abscisic acid did not affect sex expression of cucumber.