Rubio, J. and Flores, F. and Moreno, M.T. and et al, . (2004) Effects of the erect/bushy habit, single/double pod and late/early flowering genes on yield and seed size and their stability in chickpea. Field Crops Research 90 (2004) 255–262, 90. pp. 255-262.
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Abstract
The development of ascochyta blight resistant chickpea lines has allowed autumn sowing of this crop, and increased seed yields as result of higher biomass production than the traditional spring sowing in the Mediterrranean region. A second step in the chickpea yield improvement could be to increase harvest index. In this sense, the effect of the erect/bushy habit, single/ double pod and late/early flowering genes on yield and seed size and their stability was studied using eleven F6:7 ascochyta blight resistant chickpea lines. These lines were derived from a cross between an erect, single podded and late flowering line and a bushy, double podded early line. Six lines out of eleven were erect and late flowering (three being single and three double podded), two were single podded, bushy and late flowering, two double podded, bushy and early flowering, and finally one single podded, bushy and early flowering. A multilocation trial during four and 3 years under autumn and spring sowing, respectively, in the south of Spain was performed for yield and seed size. The stability of these lines was studied by AMMI analysis. Our results suggest that the double pod gene has no effects on both yield and seed size, although, confers a higher yield stability than the single pod gene. The mean yield of the lines with bushy growth habit, across all environments, was higher than that of the erect habit lines; 208.1 and 179.8 g/m2 in autumn and 120 and 101.4 g/m2 in spring sowing, respectively. Mean yield of the early lines, across all environments was higher than that of late lines; earliness was more important under spring sowing with yields of 130.2 and 102.3 g/m2 for early and late lines, respectively. Thus, for developing new chickpea cultivars under Mediterranean conditions, breeding programs should consider that (i) for spring sowing, early flowering and bushy types are the characters with greater influence on yield and yield stability, respectively, and (ii) for autumn sowing, the important characters are bushy habit on yield and double pod and earliness on yield stability.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Cicer arietinum, Autumn sowing, Spring sowing, Multilocation trial |
| Author Affiliation: | Departamento de Mejora y Agronomıa, Centro de investigacion y Formacion Agraria (CIFA), Aptdo. 4240, 14080 Cordoba, Spain |
| Subjects: | Crop Improvement |
| Divisions: | Chickpea |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 03 Feb 2017 04:23 |
| Last Modified: | 03 Feb 2017 04:23 |
| Official URL: | http://dx.doi.org/10.1016/j.fcr.2004.03.005 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/14714 |
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