Screening of coconut genotypes for drought tolerance
| dc.contributor.author | Rajagopal, V. | |
| dc.contributor.author | Kasturi Bai, K.V. | |
| dc.contributor.author | Voleti, S.R. | |
| dc.date.accessioned | 2014-08-01T10:31:21Z | |
| dc.date.available | 2014-08-01T10:31:21Z | |
| dc.date.issued | 1990 | |
| dc.description.abstract | Twenty-three genotypes of coconut (Cocos nucifera L.) comprising ten tails, six dwarfs and seven hybrids were screened for their tolerance to drought using the sensitive parameters viz. stomatal resistance (rs), leaf water potential (¥) and epicuticular wax content (ECW). Coconut palms had varying responses to the prevailing soil and atmospheric droughts during the summer months. In general, tall genotypes had relatively high rs, ¥ and ECW content as compared to the dwarfs. Some of the hybrids resembled the female parent in these characters. In response to the development of water stress between November and March some of the tall palms and tall hybrids showed relatively high rs resulting in effective conservation of water in the tissues (i.e. low transpiration rate), whereas the dwarfs were sensitive to stress with a tendency to lose more water. Parametric relationships with drought tolerance based on the rank sum led to the identification of few genotypes tolerant to drought with the desirables characters. | en_US |
| dc.identifier.citation | Oleagineaux 1990 v-45 i-5 p-215-223 | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/4476 | |
| dc.language.iso | en | en_US |
| dc.title | Screening of coconut genotypes for drought tolerance | en_US |
| dc.type | Article | en_US |