Evaluation of Cowpea Genotypes for Quantitative, Yield, Chlorophyll and NDVI status at Eastern Dry Zone of Karnataka

Author: Poornima, R., Shyamalamma, S., Hanumanthappa, D.C., Krishna, T.V., Mohan Chavan and Nagesha, N.

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Abstract

Cowpea is one of the important legume crop having higher amounts of proteins, calories, minerals and vitamins. Currently cultivating varieties are less productive in tropics and sub tropics. The development and use of potential cultivars offer a simple and cost effective method to produce higher yield with less inputs. Hence, field experiment on cowpea genotypes for growth, yield, chlorophyll and NDVI status was carried out at eastern dry zone of Karnataka, ZARS, University of Agricultural Sciences, GKVK, Bangalore, INDIA from July 2021 to November 2021. There were 55 cowpea genotypes including five checks were evaluated in randomized complete block design with three replications. The results of the field experiment showed that, significant differences among all the cowpea genotypes for all the quantitative traits, yield parameters, Chlorophyll and NDVI status. The grain yield was ranged from 737 to 2650 kgha-1. Significantly higher grain yield was recorded by IC-219489 (2650 kg ha-1) over other genotypes and which was on par with C-152, IC-402175, NBC-42, KBC-2, IC-402135, IC-462099 and IC-422174 (2544, 2507, 2458, 2409, 2286, 2208 and 2189 kg ha-1, respectively) genotypes. Higher yield of IC-219489 genotype was mainly due to production of more trifoliate leaves (38), more SPAD chlorophyll content (50.9 and 79.67 at 30 and 60 days after sowing, respectively) and NDVI (0.69 and 0.74 at 30 and 60 days after sowing, respectively) which were helped in accumulating more solar energy in terms of higher seed weight (22.09 g plant-1) and 100 seed weight (14.25 g).

Keywords

Cowpea genotypes, NDVI, quantitative traits, SPAD Chlorophyll

Conclusion

It could be concluded that IC-219489 genotype found to be the better to get higher grain yield (2650 kg ha-1) with higher SPAD chlorophyll values and NDVI values and next best genotypes for higher yield are C-152, IC-402175, NBC-42, KBC-2, IC-402135, IC-462099.

References

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How to cite this article

Poornima, R., Shyamalamma, S., Hanumanthappa, D.C., Krishna, T.V., Mohan Chavan and Nagesha, N. (2022). Evaluation of cowpea genotypes for quantitative traits, yield, chlorophyll and NDVI status at eastern dry zone of Karnataka. Biological Forum – An International Journal, 14(4): 684-691.