Siddiqui, S.N. and Umar, S. and Iqbal , M. (2013) Searching for chickpea genotypes with high Zn-accumulating capacity: a way to identify nutrient-efficient crop plants. International Journal of Agronomy and Plant Production, 4 (7). pp. 1697-1705.
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Abstract
Chickpea (Cicer arientinum L.) is an important component of diet in developing countries. Zinc (Zn) deficiency, quite common in most of the chickpea-growing areas of the world, forms a yield-limiting factor in chickpea production, as it reduces yield and nutritional quality of grain. This study attempts to identify Zn-efficient chickpea genotypes, differing in Zn-accumulating capacity. Initially, twenty-one genotypes were screened for their ability to accumulate Zn, when grown in low (0.01 mg ZnSO4/L nutrient solution) Zn condition. Seven genotypes, differing in Zn-accumulating capacity, were selected for evaluation of their yield attributes in sand culture under green house condition. They showed wide genetic variability for Zn accumulation and a general increase in shoot dry weight, grain weight per plant and relative yield. Also, a substantial correlation was observed between Zn uptake, Zn accumulation and yield response, like relative grain yield. Zn efficiency of chickpea genotypes (in terms of grain yield under Zn-deficient condition) was related to their Zn-accumulating capacity. A significant positive relationship between Zn-accumulating capacity at early growth stage and grain yield (r=0.938) suggests that the former could be used as a parameter for assessing the Zn-efficient genotypes at early growth stage, without relying on expensive field testing. This study should constitute a useful step towards identifying Zn-efficient genotypes of crop plants, especially of chickpea
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Chickpea, Crop production, Grain yield, Zn accumulation, Zn efficiency |
| Author Affiliation: | Department of Botany, Faculty of Science, Jamia Hamdard, New Delhi 110 062, India |
| Subjects: | Plant Protection Crop Improvement |
| Divisions: | Chickpea |
| Depositing User: | Mr T L Gautham |
| Date Deposited: | 13 Dec 2013 05:36 |
| Last Modified: | 13 Dec 2013 05:36 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/12259 |
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