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首页> 外文期刊>Journal of Plant Physiology >SEX DETERMINATION OF FLOWERS OF SALSOLA KOMAROVII ILJIN BY PHOTOPERIOD
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SEX DETERMINATION OF FLOWERS OF SALSOLA KOMAROVII ILJIN BY PHOTOPERIOD

机译：用光变性法进行番茄SAL的性别测定。

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摘要

The influence of photoperiod on sex determination was studied in flowers of saltwort, Salsola komarovii Iljin (Chenopodiaceae), a facultative intermediate-day plant. All the flowers formed under Long-days (LD) were hermaphroditic, those under short-days (SD) were female, and both hermaphroditic and female flowers were formed under intermediate-days (ID). When plants were incubated under LD before SD, hermaphroditic flowers were formed under subsequent SD, although they were formed only during the first few days. In some hermaphroditic flowers, the pistils appeared first and then stamens appeared a few days later. There was no correlation between the sex of the flowers and the degree of vegetative growth of the plants. Hermaphroditic flowers formed a higher percentage of seeds than did female flowers. The seeds formed under all photoperiodic conditions germinated at a high percentage rate. The present results revealed that S., komarovii forms hermaphroditic and/or female flowers in response to changes in photoperiod by regulating the development of stamen primordia. This sex determination results in different modes of reproduction, namely out-crossing and selfing. Such flexibility in the reproductive system may favor survival of the species.
机译：研究了光周期对性别决定的影响，该植物是兼性的中间天性植物，盐草花，Salsola komarovii Iljin（藜科）。在长日（LD）下形成的所有花朵均为雌雄同体，短日（SD）下的所有花朵均为雌雄，而在中间天（ID）下均形成雌雄同体的花朵。当在SD之前在LD下孵育植物时，尽管随后的SD只在最初几天内形成，但在随后的SD下却形成了雌雄同体的花。在一些雌雄同体的花朵中，雌蕊首先出现，然后雄蕊几天后出现。花的性别与植物的营养生长程度之间没有相关性。与雌花相比，雌雄同体的花形成更高比例的种子。在所有光周期条件下形成的种子都以很高的百分比发芽。目前的结果表明，通过调节雄蕊原基的发育，S.，komarovii形成了雌雄同体和/或雌花，以响应光周期的变化。这种性别决定导致不同的繁殖方式，即异型杂交和自交。生殖系统的这种灵活性可能有利于物种的生存。

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