Krishnamurthy , K. and Rajashekara , B.G. and Raghunatha, G. and et al, . (1976) Impact of defoliation on yield and its components in sorghums. Indian Journal of Agronomy, 21 (1). pp. 1-6.
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Abstract
In trials with 2 sorghum hybrids, the defoliation treatments imposed at the heading stage or 10 days later were (a) all or (b) alternate leaves were removed, (c) 33%, (d) 50% or (e) 67% of each leaf was cut, or (f) the top or (g) the bottom 50% of the total number of leaves were removed. The reduction in grain yield depended on the degree of defoliation and was the highest (66%) with (a). Yield reduction was greater with (f) than with (g). Photosynthetic activity of the remaining leaves was increased after removing (b) and (c) at the heading stage. Defoliation at the heading stage or 10 days later decreased yields by 24 and 16%, respectively, from 5.4 t/ha in untreated control plants. Defoliation decreased yields by decreasing grain number; 1000-grain weight was decreased with heavy defoliation. Defoliation affected DM accumulation and its distribution in different plant parts
| Item Type: | Article |
|---|---|
| Author Affiliation: | University of Agricultural Sciences, Bangalore, Karnataka, India |
| Subjects: | Plant Production |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 13 Jul 2012 07:32 |
| Last Modified: | 13 Jul 2012 07:32 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/6742 |
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