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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Pollination biology, breeding system and reproductive success of Adhatoda vasica, an important medicinal plant
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Pollination biology, breeding system and reproductive success of Adhatoda vasica, an important medicinal plant

机译：重要药用植物小白豆的授粉生物学，育种系统和繁殖成功

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摘要

Adhatoda vasica Nees. (Acanthaceae) is an important and widely used medicinal plant. The flowers last for 3-5 days, they are protandrous and pass through three distinct phases: male, bisexual and female. Two species of carpenter bees, Xylocopa verticalis and Xylocopa sp. are the effective pollinators. Pollen grains are deposited on the dorsal surface of the thorax during Xylocopa visit to the flowers in the male phase, and the stigma rubs the pollen-coated thorax and is pollinated when the bees visit the flowers in bisexual and female phases. There is a high level of geitonogamy. Pollination efficiency under field conditions is high (95%). However, fruit set is poor (6%). The species is self-incompatible. None of the self-pollinated flowers sets fruits, but over 50% of the cross-pollinated flowers sets fruits. The results indicate that protandry does not prevent self-pollination, but reduces interference in export and import of pollen. Although the flowers have adapted well to achieve a high level of pollination, reproductive success in terms of fruit set is low, largely due to the limitation of compatible pollen.
机译：Adhatoda vasica Nees。 （棘皮科）是重要且广泛使用的药用植物。花持续3-5天，它们是protandrous，并经历三个不同的阶段：雄性，双性恋和雌性。木蜂的两种，垂直木本属和木本属。是有效的传粉者。在雄性花序的Xylocopa访问花的过程中，花粉粒沉积在胸腔的背面，柱头摩擦花粉覆盖的胸腔，当蜜蜂在双性恋和雌性期访问花时，授粉被授粉。 geitonogamy的水平很高。田间条件下的授粉效率很高（95％）。但是，坐果率很低（6％）。该物种是自我不相容的。自花授粉的花都不结实，但交叉授粉的花超过50％结实。结果表明，protandry不能防止自花授粉，但可以减少对花粉进出口的干扰。尽管花朵已经很好地适应了高水平的授粉，但是在结实方面繁殖成功率很低，这在很大程度上是由于相容花粉的限制。

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