STUDIES ON FLOWERING AND FRUITING BEHAVIOUR OF MANGO (Mangifera indica L.) IN CHHATTISGARH PLAINS
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Date
2009
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Indira Gandhi Krishi Vishwavidyalaya Raipur
Abstract
The present investigation entitled “Studies on flowering and fruiting behaviour of mango (Mangifera indica L.) in Chhattisgarh plains” was carried out at Horticultural Research cum instructional farm, Department of Horticulture, IGKV, Raipur (C.G.) during 2008-09.
The data were recorded on growth, yield and qualitative characteristics of 10 mango varieties/hybrids. The maximum height was found in Mallika and lowest was found in Totapuri, maximum trunk girth and highest canopy area was recorded in Langra and lowest trunk girth was found in Totapuri and lowest canopy area in Kesar. Maximum number of primary branches was found in Langra and lowest found in Totapuri. Maximum number of twigs/m 2 recorded in Kesar and lowest found in Sunderja, maximum number of flowering twigs/m 2 was found in Neeleshwari and minimum was recorded in Durg-1 and highest length of panicle found in Neeleshwari, whereas, minimum was found in Sindhuri. Earliest flower bud initiation was noted in Amrapali. Earliest flowering recorded in Neeleshwari, Earliest full bloom recorded in Amrapali and early fruit set was noted in Amrapali, whereas delayed flower bud initiation in Sunderja, delayed flowering recorded in Mallika, delayed full bloom was found in Langra and delayed fruit set also in Langra.
The highest total number of flowers was recorded in Neeleshwari and lowest in Kesar. Maximum number of staminate flower was recorded in Totapuri and minimum in Langra, highest number of hermaphrodite flower was found in Neeleshwari and minimum in Kesar, the highest number of staminate flower was noted in south direction in cultivar Neeleshwari, and in hermaphrodite highest in Neeleshwari in south direction, highest sex ratio in Sunderja and minimum in Sindhuri, maximum per cent initial fruit set was found in Kesar and minimum in Amrapali. Maximum per cent final retention in Sunderja and minimum was recorded in Kesar.
The Dashehari was highest yielder, whereas poor yield was found in Mallika. The highest weight of fruit was recorded in Mallika, highest stone weight was recorded in Kesar, maximum peel weight found in Sunderja, highest pulp weight was recorded in Mallika and highest length of fruit was measured in Sindhuri. The lowest weight of fruit was found in Totapuri, lowest stone weight was recorded in Durg-1, lowest peel weight was found in Totapuri, minimum pulp weight was noted in Totapuri and minimum length of fruit was measured in Totapuri. The TSS and Acidity was higher in Durg-1, Kesar and lower in Kesar, Amrapali.
Fruit yield was positive and significantly correlated with length of panicle and number of twigs/m2. Fruit weight was found negative and significant correlation with Number of staminate and hermaphrodite flowers and with number of flowering twigs/m2. Sex ratio show positive correlation with number of hermaphrodite flowers. Staminate flower recorded positive and significant correlation with number of hermaphrodite flowers and negatively correlated with plant height. Hermaphrodite flower show positive and significant
correlation with number of flowering twigs/m2 and length of panicle. Leaf size recorded positive correlation with tree canopy in E-W direction. Number of primary branches highly positive and significantly correlated with trunk girth and tree canopy in E-W direction and in N-S direction. Tree canopy was correlated with trunk girth in E-W direction and in N-S.
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89 p.