Differences in in vitro pollen germination and pollen tube growth of cotton cultivars in response to high temperature.

ABSTRACT:

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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 growth was quantified, and their relationship to cell membrane thermostability was studied in 12 cultivars. A principal component analysis was carried out to classify the genotypes for temperature tolerance. *

Key results

Pollen germination and pollen tube length of the cultivars ranged from 20 to 60 % and 411 to 903 microm, respectively. A modified bilinear model best describe

SUBMITTER: Kakani VG 

PROVIDER: S-EPMC4246808 | biostudies-literature | 2005 Jul

REPOSITORIES: biostudies-literature