Pollen Germination of Diverse Cotton Cultivars
نویسندگان
چکیده
High temperatures during cotton flowering and early boll development can detrimentally affect cotton yield. Current commercial cultivars do not have pronounced tolerance to elevated temperatures, and improved methods of screening for thermo-tolerance are needed. The effect of heat stress on cotton has been measured with several different methods including membrane leakage, chlorophyll fluorescence and antioxidant activity. Several researchers have also used pollen germination as a screening technique for heat tolerance, with variable results due to difficulty in germinating cotton pollen. Various growth mediums exist in the literature with contrasting success on cotton pollen germination. Our objective was to determine a viable method of germinating cotton pollen for evaluating thermo-tolerance in cotton genotypes.
منابع مشابه
Differences in in vitro pollen germination and pollen tube growth of cotton cultivars in response to high temperature.
UNLABELLED BACKGROUND AND AIMS High-temperature environments with >30 degrees C during flowering reduce boll retention and yield in cotton. Therefore, identification of cotton cultivars with high-temperature tolerance would be beneficial in both current and future climates. * METHODS Response to temperature (10-45 degrees C at 5 degrees C intervals) of pollen germination and pollen tube gr...
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