Cell membrane stability as a measure of drought and heat tolerance in wheat

Blum, A. and Ebercon, A. (1981) Cell membrane stability as a measure of drought and heat tolerance in wheat. Crop Science 1981 Vol. 21 No. 1 pp. 43-47 , 21 (1). pp. 43-47.

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In drought tolerance tests on leaf discs from 12 wheat cultivars and one triticale cultivar, using 40% polyethylene glycol-6000 as the osmotic medium, injury due to desiccation ranged from 15.9% in Tanori 71 to 79.6% in Cajeme 71 in 1977/78, and from 11.2% in Yoco (triticale) to 68.7% in Barkaee in 1978/79. Differences in percentage injury between cultivars were significant in both years, but the ranking of cultivars was different due to the favourable water regime in 1977/78, compared with prolonged water stress in 1978/79. In another experiment using eight wheat cultivars, significant cultivar differences in percentage injury were obtained from plants grown under irrigated conditions, where injury was higher than in those from waterstressed plots. No significant cultivar variation was found for the waterstressed plots. In heat-tolerance tests performed at 44 deg C, the percentage heat injury ranged from 14.8% in T. aestivum 'H895' to 77.0% in T. durum 'CD31/75'. No significant correlation was found between heat tolerance and drought tolerance

Item Type: Article
Author Affiliation: Div. Field Crops, Agric. Res. Org., Volcani Cent., Bet Dagan, Israel
Subjects: Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Other Crops
Depositing User: Syamala
Date Deposited: 15 Feb 2011 17:30
Last Modified: 15 Feb 2011 17:30
Official URL: http://dx.doi.org/10.2135/cropsci1981.0011183X0021...
URI: http://eprints.icrisat.ac.in/id/eprint/1521

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