Genetics of flowering time in chickpea and its bearing on productivity in semiarid environments

Jagdish Kumar*, Shahal Abbo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

192 Scopus citations

Abstract

Chickpea (Cicer arietinum L.),a grain legume of Near-East origin has a unique natural history. The crop cycle in most of its traditional growing areas is completely different from the autumn germination, spring flowering, and summer maturation of its wild progenitor Cicer reticulatum Ladiz., in eastern Turkey. Millennia of summer cropping in the Near-East and later dissemination into the lower latitude growing areas of eastern Africa and the Indian subcontinent,as a postrainy season crop, had profound effects on allelic variation in major adaptive loci of chickpea. In this chapter we discuss the consequences of the traditional cropping practices on the flowering time genes of chickpea. The recently identified genes for flowering time are described with special reference to their effect on chickpea adaptation, seed weight, seed yield, and stability under semiarid Near-East and Indian subcontinental growing environments. It is suggested that the genetic research on flowering time of this species and its wild relatives needs much attention, as only two genes affecting this trait are identified so far. Genes allowing a reduced crop cycle will provide pathways for new cropping systems and increased population density. Reduced crop duration may also help chickpea escape damage by the major biotic and abiotic stresses that mostly affect the crop at flowering and podding stages. It is concluded that the relatively simple inheritance of flowering time opens up new possibilities for breeding high yielding and stable chickpea cultivars for the semiarid and arid regions globally.

Original languageAmerican English
Title of host publicationAdvances in Agronomy
PublisherAcademic Press Inc.
Pages107-138
Number of pages32
ISBN (Print)012000772X, 9780120007721
DOIs
StatePublished - 2001

Publication series

NameAdvances in Agronomy
Volume72
ISSN (Print)0065-2113

Bibliographical note

Funding Information:
The authors thank Drs. G. Ladizinsky, C. Johansen, R. Ortiz, T. Fahima, R. P. S. Pundir, S. K. Srivastava, and D. J. Bonfil for their valuable comments on the chapter. S. A. acknowledges support from the Israeli Ministry of Science through the Indian-Israeli Biotechnological initiative, from the Chief Scientist of the Israeli Ministry of Agriculture and from BARD, the United States–Israel Binational Agricultural Research and Development Fund.

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