• J G Bhatt

      Articles written in Proceedings – Plant Sciences

    • Variations in foliar anatomy of cotton

      J G Bhatt R Andal

      More Details Abstract Fulltext PDF

      The presence of an additional lower palisade in varieties ofGossypium arboreum andG. herbaceum was confirmed. Except vars. Sujata and PSH, in other varieties ofG. barbadense spongy tissue was thicker than palisade. InG. hirsutum, varieties grown under irrigated and assured rainfall conditions had thicker upper epidermis and the differences in thickness of palisade and spongy tissues per genotype were less than those found in varieties growing under limited supply of moisture. It appeared that greater difference of palisademinus spongy parenchyma inG. hirsutum cottons is a better indicator of drought tolerance than palisade thickness alone or total thickness of the leaf.

    • Responses of cotton-cultivars to long day conditions

      J G Bhatt M R K Rao

      More Details Abstract Fulltext PDF

      Flowering of cultivated varieties of cotton belonging toG. arboreum, G. herbaceun andG. hirsutum was delayed by over 14 hrs of daylength because of increase in number of days for square formation. The long day treatment in general increased height, production of fruiting branches, leaf area and dry weight per plant. The number of fruiting forms, bolls retained, yield of seed cotton and fruiting coefficient decreased under long day conditions. These characters were affected more in upland varieties and short day Cambodia derivatives. The most ofG. arboreum andG. herbaceum varieties became more vegetative in growth but their boll number and yield per plant increased.

      Since the varieties 1998 F (G. hirsutum) and Gaorani 1111 (G. arboreum) were tolerant to long photoperiod and grew satisfactorily, it is suggested that these may be used as donor parents for improving the quality of cottons grown in northern India.

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