Correlation Studies for Morphological and Biomass Traits in Half-sib Progenies of Peltophorum pterocarpum
Avni Kumari
College of Forestry, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, UP, India.
Shivani Rawat
College of Forestry, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, UP, India.
Amit Larkin
College of Forestry, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, UP, India.
Afaq Majid Wani *
College of Forestry, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, UP, India.
*Author to whom correspondence should be addressed.
Abstract
The current research was conducted on twenty plus trees of Peltophorum pterocarpum from different locations in Bihar to study the association among different morphological and biomass traits. It was found that PPT12 (Rajgir Park) and PPT4 (Muraura, Nalanda) performed better for germination metrics under open field and greenhouse conditions, respectively. PPT6 (Nari, Nalanda) and PPT13 (Sathopur, Nalanda) outperformed all other superior tree progenies in terms of morphological and biomass attributes in green house and open field conditions, respectively. The phenotypic coefficient of variability was greater than the genotypic coefficient of variability for all morphological and biomass variables tested under green house and field conditions, showing that the environment played a greater role. Germination value heritability was found to be high in both environments. High heritability with high genetic advance was associated with shoot length in greenhouse condition, indicating additive gene action. Under greenhouse conditions, the phenotypic correlation coefficients among the seedling parameters evaluated varied from a non-significant 0.211 (P=0.01) between shoot root ratio and root dry weight and between shoot length and collar diameter to a very significant 0.967 (P=0.01).Accessions showing higher values for one or the other attributes could be selected as parents for further improvement.
Keywords: Peltophorum pterocarpum, heritability, phenotypic and genotypic correlation, growth variability, PPTs (Peltophorum plus tree)
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References
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