Genetic variability studies of diverse cashew (Anacardium occidentale L.) cultivars for growth and yield parameters in coastal zone of Karnataka
The present study aimed to evaluate the performance of cashew cultivars developed/collected from different cashew growing regions of the country. The experiment was conducted at Agricultural and Horticultural Research Station, Ullal, belonging to coastal zone of Karnataka during 2023-24. Fifteen yea...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2024-12-01
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| Series: | Electronic Journal of Plant Breeding |
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| Online Access: | https://ejplantbreeding.org/index.php/EJPB/article/view/5205 |
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| Summary: | The present study aimed to evaluate the performance of cashew cultivars developed/collected from different cashew growing regions of the country. The experiment was conducted at Agricultural and Horticultural Research Station, Ullal, belonging to coastal zone of Karnataka during 2023-24. Fifteen year old standing cashew orchard planted with 42 diverse cashew cultivars were evaluated for 15 fruit, nut, growth and yield parameters following randomized complete block design with two replications. Highly significant variations of GCV and PCV coupled with high heritability and GAM was observed for most of the traits indicating the predominance of additive gene action and possibilities of achieving high genetic gain from selection. Character association studies revealed the importance of yield component traits like nuts per panicle, canopy surface area and canopy spread (E-W and E-W) that forms the basis for selection of promising cultivars for yield improvement in cashew. Potential high yielding varieties like Ullal 1, Bapatla 8, Gubbi 3/111, NRCC Selection 2, Ullal 3 and VRI-3 were found to be suitable in coastal zone of Karnataka. Bapatla 8, Priyanka and Vengurla 7 cultivars exhibited superiority for both nut weight and nut yield per tree. This study provides useful information on genetic control of important yield traits and choice of potential cultivars in hybridization program to explore the variability and hybrid vigor for improvement of productivity and quality in cashew.
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| ISSN: | 0975-928X |