Water deficit tolerance of oil palm genotypes commercially grown in Colombia

Rodriguez C. B., . and Romero H. M., . (2009) Water deficit tolerance of oil palm genotypes commercially grown in Colombia. [Proceedings Paper]

The oil palm is one of the most important crops in Colombia. The productivity of the crop in Colombia is affected by drought periods in different regions of the country. One solution to overcome this problem is to breed for tolerant materials with the capability of a sustain production with low water supply. The objective of this project is to determine the tolerance or susceptibility of commercial genotypes used in Colombia to water deficit. The project has two phases in which the water deficit tolerance is determined for 12 commercial materials. In the first phase water deficit tolerance is measured on young palms planted in the Palmar de la Vizcaina Santander -Colombia in the second phase nursery oil palms of the same genotypes are exposed to water deficit under controlled greenhouse conditions. The results are presented from measurements made on young palms during a wet period and for nursery plants under water deficit treatments. The evaluated responses were: I changes in spear leaf extension II gas exchange III chlorophyll fluorescence IV water potential and V biochemical changes proline and sugar accumulation. The responses are related to climate variables. The observed physiological and biochemical data indicate that some materials present different responses to water deficit although the tolerance or susceptibility of them is not clear. The significance of these results is discussed.

Full text available from:

Abstract

The oil palm is one of the most important crops in Colombia. The productivity of the crop in Colombia is affected by drought periods in different regions of the country. One solution to overcome this problem is to breed for tolerant materials with the capability of a sustain production with low water supply. The objective of this project is to determine the tolerance or susceptibility of commercial genotypes used in Colombia to water deficit. The project has two phases in which the water deficit tolerance is determined for 12 commercial materials. In the first phase water deficit tolerance is measured on young palms planted in the Palmar de la Vizcaina Santander -Colombia in the second phase nursery oil palms of the same genotypes are exposed to water deficit under controlled greenhouse conditions. The results are presented from measurements made on young palms during a wet period and for nursery plants under water deficit treatments. The evaluated responses were: I changes in spear leaf extension II gas exchange III chlorophyll fluorescence IV water potential and V biochemical changes proline and sugar accumulation. The responses are related to climate variables. The observed physiological and biochemical data indicate that some materials present different responses to water deficit although the tolerance or susceptibility of them is not clear. The significance of these results is discussed.

[error in script]

Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. TP 684 P3 161 2009 vol. 2 Call Number.
AGROVOC Term:	Oil palms
AGROVOC Term:	Genotypes
AGROVOC Term:	Drought
AGROVOC Term:	Drought resistance
AGROVOC Term:	Plant response
AGROVOC Term:	Greenhouses
AGROVOC Term:	Nursery plants
AGROVOC Term:	Drought stress
AGROVOC Term:	Seedlings
AGROVOC Term:	Leaves
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:15
URI:	http://webagris.upm.edu.my/id/eprint/12557

Actions (login required)

View Item