Sathish, K and Jaba, J and Jatin, K and Mishra, S P and Swathi, M (2023) Evaluation of biochemical components of resistance in pigeonpea, Cajanus cajan (L.) Millsp. against Callosobruchus chinensis L. (Coleoptera: Bruchidae). Allelopathy Journal, 58 (2). pp. 153-164. ISSN 0971-4693
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In laboratory study, we identified the biochemical components of resistance to bruchid (Callosobruchus chinensis L.) in 15 pigeonpea (Cajanus cajan) genotypes. The bruchids cause substantial losses to the pigeonpea grains in storage as well under field conditions. The anti-nutritional constituents (Trypsin, cysteine and amylase inhibitors) of pigeonpea played major role in inhibiting the growth and development of C. chinensis. The maximum mean developmental period and minimum adult bruchid weight were observed in the wild pigeonpea genotype ICPW 68 (34.10 days and 4.98 mg respectively), followed by ICPL 20186 (32.4 days and 5.09 mg) and ENT 11 (32.31 days and 5.21 mg) respectively. The highest protease inhibition activity was observed in pH range of 4 to 7, which acts as an anti-metabolite to C. chinensis indicating the relative resistance. The anti-nutritional factors, developmental period and adult weight of bruchids were negatively correlated. The studies revealed that biochemical components in pigeonpea play an important role in resistance to C. chinensis.
| Item Type: | Article |
|---|---|
| Divisions: | Global Research Program - Accelerated Crop Improvement |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | α-amylase inhibitor, bruchids, Callosobruchus chinensis, pigeonpea, protease inhibitors. |
| Subjects: | Mandate crops > Pigeonpea Others > Entomology |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 29 Nov 2023 09:47 |
| Last Modified: | 29 Nov 2023 09:47 |
| URI: | http://oar.icrisat.org/id/eprint/12315 |
| Official URL: | https://web.s.ebscohost.com/abstract?direct=true&p... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | The funding for this research was provided by CGIAR - CRP GLDC (Grain Legumes & Dry Land Cereals, ICRISAT). Authors also express their sincere thanks to Mr. P. Venkata Ramana, Mrs. P. Ponnamma, Mr. Rajendra Kumar and Mr. K. Rajendra Prasad for their support in carrying out the experiments. |
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