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Combining ability analysis and evaluation of heterosis in Jatropha curcas L. F1 hybrids.


Citation

Biabani, Alireza and Yusop, Mohd Rafii and Saleh, Ghizan and Shabanimofrad, Mahmoodreza and Latif, M.A. (2012) Combining ability analysis and evaluation of heterosis in Jatropha curcas L. F1 hybrids. Australian Journal of Crop Science, 6 (6). pp. 1030-1036. ISSN 1835-2693; ESSN:1835-2707

Abstract

With the aim of estimating genetic parameters and recognizing superior Jatropha curcas L. combinations, ten superior plants were selected based on seed yield and oil content, and were crossed among them in a 10 x 10 half-diallel mating design to produce 45 F1-hybrids. The e xperiment was conducted in nursery stage using a randomized complete block design (RCBD) with three replications. Analysis of variance for the combining ability indicated that GCA and SCA variance were significant at 1% probability for plant height, collar diameter and number of leaves in nursery stage. The low ratio of GCA/SCA exhibited the non-additive effects. Broad sense heritabilies were high for plant height, collar diameter and number of leaves. Estimates for narrow sense heritability of the traits, plant height collar diameter and number of leaves were low. Percentages of heterosis and heterobeltiosis values for plant height, collar diameter and number of leaves ranged from negative to positive. This showed that the existence of dominance or non-additive gene actions might be present in the hybrids. On the basis GCA and SCA effects, parents, Ph1.2 and In2.1 and hybrids Ph1.2 (3) × In1.2 (8), Ph1.1 (9) × My2.2 (10) and My2.1 (1)× My2.2 (10) could be used for future breeding program.


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Official URL: http://www.cropj.com/

Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Publisher: Southern Cross Publishing
Keywords: Jatropha curcas; Combining ability; Heterosis; Diallel cross.
Depositing User: Nur Farahin Ramli
Date Deposited: 11 Nov 2013 09:22
Last Modified: 26 Aug 2015 02:05
URI: http://psasir.upm.edu.my/id/eprint/23859
Statistic Details: View Download Statistic

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