Question

2. Observation of various parts of the plant
-hibiscus and tuberose and explaining the difference according to classification criteria.​

Answer 1

Explanation:

The present study consists of twenty one tuberose genotypes to find out the estimates of genetic variability, heritability, genetic advance and character association. The phenotypic coefficient of variation was found to be higher than their corresponding genotypic coefficient of variation for all the characters. The high genotypic coefficient variation (GCV) and phenotypic coefficient variation (PCV) magnitude was observed for yield of bulb per plant (gm), yield of bulb (q/ha), concrete (%), absolute (%) and weight of bulbs (gm). High heritability coupled with high genetic advance as percent of mean was recorded for number of leaves per plant, vase life (days), numbers of bulbs per plant, yield of bulb per plant (gm) and yield of bulb (q/ha), weight of bulb (gm), concrete and absolute indicating that genetic control in the inheritance of these traits and selection pressure could be profitably applied on these characters for yield improvement. Phenotypic correlations were of higher magnitude as compare to their corresponding genotypic correlation in most of the attribute combination which indicated that existence of strong influence of environmental factor for the various characters. Yield of bulb showed significant and positive correlation with days to taken to sprout, plant height, length of longest leaf, days required for visibility of first spike, number of floret per spike, diameter of floret, length of spike, number of bulbs per plant, yield of bulb per plant and diameter of bulb at genotypic level and phenotypic level yield of bulb exhibited positive significant association with days to taken to sprout, plant height, number of floret per spike, length of spike, number of bulbs per plant, yield of bulb per plant and diameter of bulb. Thus, it can be inferred that selection based on any one of these characters either alone or in combination, will result in identifying high yielding strains in tuberose crop.