ISHS Acta Horticulturae 665: II International Symposium on Lychee, Longan, Rambutan and other Sapindaceae Plants
EXTENT OF FRUIT CRACKING AND SUN BURNING IN DIFFERENT LYCHEE CULTIVARS |
| Authors: | L.S. Pereira, P.K. Pathak, S.K. Mitra |
| Keywords: | pericarp, mesocarp, endocarp, calcium content, rapid aril growth, degreen, necrosis |
| Abstract:
Studies with 15 lychee cultivars revealed that ‘Nafarpal’ (1.00%), ‘Elaichi’ (2.34%), ‘Kasba’ (4.34%), ‘Bombai’ (4.83%), ‘Early Large Red’ (6.50%) and ‘Piazi’ (6.50%) were less prone to cracking compared with ‘McLean’ (38.00%), ‘Rose Scented’ (33.34%), ‘Muzaffarpur’ (29.00%), ‘Early-Muzaffarpur’ (26.505) and ‘Purbi’ (25.67%). The sun-burning incidence of fruit was found low in ‘Elaichi’ (1.01%), ‘Nafarpal’ (2.67%), ‘Bombai’ and ‘Kasba’ (3.00%) and ‘Bedana’ (3.67%). The maximum sun-burning incidence was observed on the southern and western sides of the canopy. However, the cracking incidence of fruit was found maximum on the east side of the canopy. Based on field observations, the fruit cracking incidence of 15 cultivars were in the order of ‘McLean’ > ‘Rose Scented’ > ‘Muzaffarpur’ > ‘Early Muzaffarpur’ > ‘Purbi’ > ‘China’ > ‘Seedless Late’ > ‘Deshi’ > ‘Elaichi’ > ‘Nafarpal’ and the sun-burning incidence in the order of ‘Purbi’ > ‘Rose Scented’ > ‘Muzaffarpur’ > ‘Early Muzaffarpur’ > ‘Deshi’ > ‘McLean’ > ‘Seedless Late’ > ‘Piazi’ > ‘China’ > ‘Early Large Red’ > ‘Bedana’ >‘Bombai’ >‘Nafarpal’ >‘Elaichi’. There were no coinciding relationship between pericarp calcium content and cracking of fruits in different cultivars. | |
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