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Variation of Thermal Environment and its Effect on Performance of Wheat (Triticum aestivum L.) Under Future Global Warming

Ravi Kiran , Ravi Kiran

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Indian Journal of Biology 3(2):p 163-167, July - December 2016. | DOI: DOI: http://dx.doi.org/10.21088/ijb.2394.1391.3216.12

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Abstract

 High temperature during post-anthesis period has been found to decrease the yield and the yield attributing characters of Wheat ( Triticum aestivum L.). While, High yield is correlated with low soil temperature between shoot elongation and beginning of heading. The increased carbon dioxide concentration is helpful in simulating the development of tiller buds. Carbon dioxide enriched wheat produced about twice the dry matter of control plants. Tillers and earhead numbers is also increased by carbon dioxide enrichment irrespective of N supply. Agroforestry can provide suitable microclimatic conditions for growth and development of wheat and also help to mitigate the hot weather and dry wind effects which are injurious to wheat plant at grain filling. Grain filling is not greatly affected by short shading period but increasing the length of period of shading brought about an accelerating yield reduction. The crop is most sensitive to shading at the time of rapid ear growth.

Keyworde: Wheat (Triticum aestivum L.); Modified Thermal Environment; Agroforestry; Climate Change.

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DOI: DOI: http://dx.doi.org/10.21088/ijb.2394.1391.3216.12

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