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Foliar Traits in Papaya Plants Intercropped in Coconut

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The present study compared the shade adapting traits among the two gynodioecious papaya varieties Arka Surya and Arka Prabhath intercropped in coconut garden. Morphological traits such as internodal length, leaf traits (area, colour attributes, fresh and dry weight), fruit number, fruit weight and yield were analysed. Correlations and step-wise regression equations were used to infer the relationship among the traits and fruit yield. Larger leaf area, greater internodal length, high leaf fresh weight, high leaf dry weight, small fruits and low fruit yield were observed in Arka Surya. Fresh weight, dry weight and lightness of leaf together showed significant regression (R2 = 0.528) with annual fruit yield per plant. Arka Prabhath performed better than Arka Surya under coconut canopy with optimal fruit size and yield.

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The Research is financed by Rastriya Krishi Vikas Yojana (RKVY), Government of India.

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Correspondence to V. Arunachalam.

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Significance Statement Successful intercrop cultivar in a coconut garden should be adapted to shade. We compared two papaya varieties (Arka Surya and Arka Prabhath) intercropped in coconut garden. Arka Prabhath variety exhibited shade adaptability with small leaves, large fruits and short internodes.

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Arunachalam, V., Vaingankar, J.D. & Kevat, N. Foliar Traits in Papaya Plants Intercropped in Coconut. Natl. Acad. Sci. Lett. 44, 267–270 (2021).

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