Combining ability for germination traits in Jatropha curcas L.

A. K M Aminul Islam, Nurina Anuar, Zahira Yaakob, Jaharah A Ghani, Mohamad Osman

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Six parents of Jatropha curcas were crossed in half diallel fashion, and the F 1 s were evaluated to determine the combining ability for nine germination parameters. The ratio between general combining ability (GCA) and specific combining ability (SCA) variances indicated preponderance of additive gene action for all the characters except germination percentage, time of 50% germination, seedling length, and seedling vigor index. The parents P 1 and P 2 were the best general combiner for most of the characters studied. The cross P 1 × P 5 was the best specific combiner for speed of emergence, germination percentage, germination energy, germination index, and seedling vigor index, the cross P 2 × P 5 for mean germination time, time of 50% germination, and seedling length, and the cross P 4 × P 5 for number of days to first germination. The germination percentage varied from 58.06 to 92.76% among the parents and 53.43 to 98.96% among the hybrids. The highest germination (98.96%) was observed in hybrid P 2 × P 4, and none of the hybrids or parents showed 100% germination. The highest germination index (GI) and seedling vigor index (SVI) were found in hybrid P 1 × P 5 and P 2 × P 5, respectively. The results of this study provide clue for the improvement of Jatropha variety through breeding program.

Original languageEnglish
Article number935981
JournalThe Scientific World Journal
Volume2013
DOIs
Publication statusPublished - 2013

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Jatropha
Germination
germination
Genes
Seedlings
seedling
vigor

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Medicine(all)

Cite this

Combining ability for germination traits in Jatropha curcas L. / Islam, A. K M Aminul; Anuar, Nurina; Yaakob, Zahira; A Ghani, Jaharah; Osman, Mohamad.

In: The Scientific World Journal, Vol. 2013, 935981, 2013.

Research output: Contribution to journalArticle

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