PHYSIOLOGICAL STUDIES OF HETEROSIS IN OKRA HYBRID GOH6 (Abelmoschus esculentus (L.) Moench)
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Date
1996
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AAU, Anand
Abstract
The present investigation on physiological studies of heterosis in okra hybrid G0H6 (AbBlmoschuB Bsculentus (L.) Moench) in relation to its parents (viz., Parbhani Kranti and KS 312) was carried out on the field of Plant Breeding Farm, Gujarat Agricultural University, Anand during the year 1994-95. Based on these findings, it is suggested that more emphasis should be given to the pattern of translocation of photosynthates and nutrients. The data on accumulation of dry matter indicated that the hybrid produced more dry matter during its lifespan. But the percentage partitioning was utmost similar in all the cultivars. The hybrid also exhibited more major nutrients content in leaf, stem and pod. Rate of growth and developmental traits also depicted that the hybrid adjusted its growth and formed an efficient skeleton. This was evident from the higher values of plant height, number of leaves, leaf area index, leaf area duration, leaf area ratio. The positive values for these characters indicated that the hybrid utilized its vigour to increase the yield potentiality. So far as days to first square, flower and pod set is concerned, the hybrid is late than female parent. The yield contributing characters viz., number of pods and weight per plant contributed significantly to build up higher yield of the hybrid. Hybrid showed 86.25 and 76.25 percentage more number of pods and 87.33 and 76.60 percentage more weight over its female and male parent respectively. The results of chlorophyll content indicated that the hybrid produced significantly more chlorophyll a, b and total than parents. The results of nutrient content indicated that hybrid had more nutrient than parents which showed more nutrient uptake and its translocation.
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PLANT PHYSIOLOGY AND AGRICULTURAL ECOLOGY, A STUDY