Record Details

Genetic variability and segregation of sex in nutmeg(MYRISTICA FRAGRANS Houtt.)

DSpice at Indian Institute of Spices Research

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Field Value
 
Creator KRISHNAMOORTHY, B
SASIKUMAR, B
REMA, J
 
Date 2002-08-03T11:35:24Z
2002-08-03T11:35:24Z
1996
 
Identifier Journal of plantation crops, 24(Supplement) :468-472 (1996)
0304-5242
http://hdl.handle.net/123456789/202
 
Description In a progeny population of 16 elite mother trees of nutmeg from Kallar, Burliar, Kozha, kalady, Moovattupuzha, Kottayam and Balamore, significant variation was observed only for plant height, number of main shoots, number of years taken for flowering, fruit weight and ratio of mace to seed weight. There was no statistically significant variation for number of erect shoots, mean girth at 1.4 m. canopy size, yield of fruits and weight of seed and mace among the progenies. Estimates of genetic parameters for the significant attributes revealed higher magnitude of phenotypic coefficient of variation (PCV) as compared to the corresponding genotypic coefficient of variation (GCV) indicating predominant role of environment in the expression of these characters. The estimates of heritability and genetic advance were low for all the characters barring the ratio of mace to seed weight, thereby implying the importance of non-additive genetic variance. Lack of significant variation for yield and certain other attributes and low estimates of heritability for most of the significant attributes can he attributed to narrow gene pool of original mother trees from which the present day nutmeg population evolved.
 
Format 491659 bytes
application/pdf
 
Language en
 
Publisher Indian Society for Plantation Crops, Kasargod
 
Title Genetic variability and segregation of sex in nutmeg(MYRISTICA FRAGRANS Houtt.)
 
Type Article