Abstract
The Journal of the National Science Foundation of Sri Lanka publishes the results of research in all aspects of Science and Technology. The journal also has a website at http://www.nsf.gov.lk/. 2020 Impact Factor: 0.515The JNSF provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.
Highlights
Wheat {Triticum aestivum L.) is an important cereal crop ranking number one globally and number two in Bangladesh both in terms of production and acreage[3]
Late planting of wheat is one of the maj or reasons for yield reduction, since about 60% of the wheat crop is cultivated at late sowing conditions after harvesting the transplanted aman rice[3]
In Bangladesh, late planting of wheat exposes it to high temperature at reproductive stage causing reduction of the number of kernels per spike[47] and the size[89]
Summary
Wheat {Triticum aestivum L.) is an important cereal crop ranking number one globally and number two in Bangladesh both in terms of production and acreage[3]. The net effect of these is the reduced grain yield This problem will be further aggravated due to global warming, because in Bangladesh the annual mean temperature of 25.75°C will rise by about 0.21°C and 0.39°C by 2050 and 2100, respectively[10]. Efforts ought to be made to minimize the late sown yield reduction by screening or developing high temperature tolerant wheat genotypes/ varieties. Proline is considered to be an useful component for evaluating the tolerance of a crop to high temperature[15]. In wheat, the heat tolerance in relation to proline content has not yet been evaluated in Bangladesh and probably in the other countries of the world. We carried out the present investigation to test the tolerance of wheat genotypes to heat stress in relation to proline accumulation capacity
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