| Autor: |
MEGHA, SREENIVAS, A. G., SUSHILA, N., HADIMANI, D. K., BELADHADI, R. V. |
| Zdroj: |
Journal of Agrometeorology; Sep2022, Vol. 24 Issue 3, p262-268, 7p |
| Abstrakt: |
Climate change will alter the phytochemistry of crops, especially the C3 plants. Cowpea (Vigna unguiculata L.) is an annual, photo-insensitive C3 legume that benefits from the altered climate. Any changes in the nutritional quality of the host will certainly affect its herbivore. In this view, the study was conducted on croppest interaction i.e., to know the impact of climate change on the growth and development of cowpea alone and in presence of associated sucking pest aphid, Aphis craccivora (Koch) during Kharif 2019-20. The crop was raised in Open Top Chambers previously set with different climatic treatments. Observations on change in plant growth and phytochemistry along with its effect on herbivore aphids were studied. The results revealed that elevated CO2 and temperature influenced the crop positively in terms of growth and also have registered higher concentrations of leaf pigments, carbon, and 'C' based metabolites. In contrast, lower concentrations of flavonoids, 'N' based compounds were recorded which ultimately altered the C: N ratio in the plant system. The obtruded phytochemistry of cowpea under elevated treatments resulted in decreased development (12.73 ± 0.07 days) and survival fitness of aphids, wherein increased fecundity (34.56 ± 0.18 days) and population density (73.43/ top three leaves) was noticed when compared to ambient treatments. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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