ASSESSMENT OF VARIABILITY IN DIFFERENT CLONES OF Morus alba L.
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Date
2018-09
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UHF, NAUNI
Abstract
ABSTRACT
The present investigation entitled “Assessment of variability in different clones of
Morus alba L.” was carried out in the Department of Tree Improvement and Genetic
Resources, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan during the
year 2016-2018 to assess the variability among different clones for various morphometric
characters and seasonal variation in fodder quality characters. The study revealed that
different clones varied significantly with respect to morphometric traits, mineral nutrients and
proximate composition. Mineral nutrients and proximate composition showed significant
seasonal variation for two selected seasons. Best performance was shown by Tr10 followed
by S146 and Mandaley for morphometric traits and Tr10 followed by S799 for fodder traits.
It also became apparent from the study that mineral nutrient content viz. nitrogen, potassium
and phosphorus decreased with the progress of season however, proximate composition
values like dry matter, crude fibre, ether extract and total ash content showed significant
increase with the progress of season whereas, crude protein and nitrogen free extract content
decreased. High estimates of heritability were recorded for leaf area (0.99), lamina length
(0.93) and green leaf yield (0.92). Significant and positive correlations were found among
lamina width, lamina length, petiole length and leaf area. Petiole length and crown area also
exhibited significant and positive correlation with green leaf yield. On the basis of crude
protein content and green leaf yield clones Tr10, S36, S146, S1531 and Berhampore were
found better as compared to others.
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