GENETIC VARIATION AND CHARACTER ASSOCIATION IN DIFFERENT ACCESSIONS OF MULBERRY (MORUS SP.)
Loading...
Date
2009-01-15
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Agricultural Sciences GKVK, Bangalore
Abstract
Studies on genetic variability and character accessions of mulberry were
conducted in rainy and winter seasons of 2007-08.Fifty mulberry accessions were
used for this study. Leaf yield per plant recorded maximum in C-763(2888.68),
C-20 (2446.6g) in rainy season. Where as in winter season ME-27(1658.0g),
S-13(1399.7g) recorded maximum leaf yield per plant. For root characteristics
Mysore local, S-36, C-776 performed better in rainy and winter seasons. For
moisture percentage V1, S-36, C-763, ME-08 accessions were best in rainy and
winter seasons. For reproductive behaviour in rainy season, out of fifty accessions
twenty nine beared female inflorescences (58%), eighteen had male inflorescence
(36%) and three were monoecious types (6%). In winter season, thirty-three
beared female inflorescence (66%), seventeen beared male inflorescence (34%).
High PCV and GCV were found for number of branches per plant, total shoot
length, number of leaves per plant, single leaf area, fresh weight of roots, dry
weight of roots and hundred fresh leaf weight in rainy and winter seasons.
Correlation studies in rainy season indicated highly significant positive correlation
of leaf yield with number of branches per plant, number of leaves per plant,
hundred fresh leaf weight, moisture retention capacity at 6 hr and 24 hr at
phenotypic and genotypic levels. In winter season highly significant positive
correlation of leaf yield with plant height, number of branches per plant
intermodal distance, number of leaves per plant, petiole length, single leaf area
and hundred fresh leaf weight were observed at phenotypic and genotypic levels.
path analysis in rainy seasons revealed that the number of leaves per plant,
moisture retention at 24 hr, hundred fresh leaf weight, number of branches per
plant, root length, moisture retention at 6hr were important traits contributing to
leaf yield. Where as in winter season hundred fresh leaf weight, number of
branches per plant, plant height and petiole length were important traits
contributing to leaf yield.
Description
Keywords
null