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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Prospects of success of biotechnological approaches for improving tolerance to drought stress in crop plants.
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Prospects of success of biotechnological approaches for improving tolerance to drought stress in crop plants.

机译：生物技术方法成功提高作物植物对干旱胁迫的耐受性的前景。

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摘要

Abiotic stresses such as drought, temperature and salinity generally reduce crop productivity. Abiotic stresses are location-specific, and exhibit internal variation in occurrence, intensity and duration. They can occur at any stage of plant growthand development. A few transgenics in tobacco and rice overproducing osmolytes and stress proteins have been produced and tested for tolerance of salt and drought stresses in the vegetative stage. The genes being manipulated are not mechanistically linked with the process of yield formation. It is suggested that biotechnology is unlikely to result in abiotic stress-resistant transgenics growing in the farmer's field in the near future, and that breeding for drought tolerance requires the identificationof traits for phenology and those contributing to yield so that these can be pyramided using conventional means.
机译：非生物胁迫，例如干旱，温度和盐度通常会降低作物的生产力。非生物胁迫是特定位置的，并且在发生，强度和持续时间方面表现出内部变化。它们可以发生在植物生长和发育的任何阶段。已经生产了烟草和水稻中过量生产的渗透液和胁迫蛋白的一些转基因，并测试了营养期对盐和干旱胁迫的耐受性。被操纵的基因与产量形成过程没有机械联系。有人建议，生物技术不太可能在不久的将来在农民的田地中产生非生物抗逆转基因，并且为抗旱育种需要鉴定物候特性和有助于产量的特性，以便可以使用常规方法将其金字塔化。手段。

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