| Abstrakt: |
The investigation was carried out to study genotype × environmental interaction for growth and yield parameters of mulberry hybrids in different seasons during 2022-23 at the Department of Sericulture, UAS, GKVK, Bengaluru-65. The study comprised of eight mulberry hybrids and two check varieties. Analysis of variance for growth and yield parameters of mulberry hybrids in different seasons indicated highly significant mean sum of squares due to season for shoot height (cm), number of branches per plant, number of leaves per plant, single leaf area (cm2 ), leaf moisture content (%) at harvest, leaf moisture retention capacity at 6, 9 and 12 hrs after harvest and leaf yield per plant (g). The mean squares due to seasons was significant for shoot length, number of branches per plant, number of leaves per plant, leaf moisture content, leaf moisture retention capacity at 6 and 9 hours after harvest of leaf and leaf yield per plant and non-significant for internodal distance (cm). The selection indices of mulberry hybrids revealed that rainy season (S-4) of 2023 was found more favourable for mulberry hybrids for good expression of shoot length, number of branches per plant, number of leaves per plant, single leaf area, leaf moisture content, leaf moisture retention capacity at 6 and 9 hours after harvest of leaf and leaf yield per plant. On the other hand S2-Summer season 2023 was found more favourable for mulberry hybrids for good expression of internodal distance (cm). Among the genotypes studied, no single genotype was stable across the season for all the traits. The mean performance of different mulberry hybrids in each season overall and the mean values of each genotype were computed and rankings were assigned. Among the different mulberry hybrids, ME-65 × V1 ranked first and found stable over the seasons for most of the traits viz., shoot length(cm), number of branches per plant, internodal distance, single leaf area (cm2 ), leaf moisture content (%), moisture retention capacity at 6, 9 hrs after leaf harvest and leaf yield per plant (g), followed by MI-79 ×MI-66. [ABSTRACT FROM AUTHOR] |
