SEED SOURCE STUDIES IN KAPHAL(Myrica esculenta Buch-Ham.ex D. Don) IN HIMACHAL PRADESH
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Date
2020-07
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NAUNI,UHF
Abstract
ABSRACT
The present study was confined to 11 natural populations of Myrica esculenta Buch-Ham.ex
D. Don distributed in three districts of Himachal Pradesh. Three populations were selected from each
Solan and Shimla district whereas five populations were selected in Sirmour district. From each
population five trees were selected. Variation in fruit, seed and seedling traits were studied by
collecting fruits of this species from 55 mature trees in the month of April-May, 2019. There was
large variation in tree morphometric characters and fruit colour within as well as among populations.
The maximum tree height and diameter was recorded in Serbharal population. Overall fruit size was
higher in Shogi and Tutu populations. Myrica esculenta and TSS content was higher in Sirmour region.
Natural population variance was higher as compare to mother tree variance for all fruit and seed
characters. Population repeatability coefficient of fruit and pulp traits was observed from 0.23 for TSS
to 0.81 for fruit weight and seed weight. Eighty eight percent of variation was accounted by two
principle components in case of fruit and seed traits. Cluster III showed its significance for TSS while
cluster II showed highest values for fruit size, seed size and pulp weight. Germination and nursery
parameters were recorded after six months of sowing. Germination percent was higher in Shogi i.e.
31.60 %. Seedling length and total biomass and sturdiness quotient was found maximum in Chakala.
Dickson quality index was found maximum in Dabara Baranji. Variation in all seedling parameters
could be attributed to the natural population than family except number of nodes, number of leaves,
leaf length, leaf breadth, root length and root thickness. Maximum family heritability was observed
for leaf length (0.91).Population genetic gain was observed higher than family genetic gain. Seventy
nine percent of variation for nursery traits was explained by six principle components. Cluster II
showed significance for total seedling length, shoot length, root length androot biomass.