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Identification of induced mutants for morpho-physiological and biochemical traits of rajmash (Phaseolus vulgaris)

Indian Agricultural Research Journals

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Title Identification of induced mutants for morpho-physiological and biochemical traits of rajmash (Phaseolus vulgaris)
 
Creator BHAGAT, SHILPA
KUMAR, SANJEEV
DOGRA, SAPALIKA
 
Subject Cluster distance, Genetic divergence, Inter-cluster distances, Mahalanobis D2 technique, Tocher’s method
 
Description An experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at the Regional Horticultural Research Station, Bhaderwah of Shere Kashmir University of Agriculture Sciences and Technology, Jammu to characterize the 24 induced mutants of rajmash (Phaseolus vulgaris L.) to study the genetic diversity among them. Experimental material consisted of 22 induced mutants generated through gamma irradiation and 2 land races, viz. Bhaderwah Local and Poonch Local. Twenty-two induced mutants were grouped into 8 clusters, and 5 clusters on the basis of biochemical and morpho-physiological traits, respectively. Majority of which were accommodated in cluster I (13) followed by cluster II (4) and minimum in cluster V (1). Further, cluster I showed the largest intra-cluster distance (D2=39.10), followed by cluster V, and the remaining clusters having the shortest intra-cluster distance (D2= 0.00). Cluster II and III had the least distance between them, whereas cluster III and V had the greatest inter-cluster distance (D2=9.36). Among the morpho-physiological characters studied grain yield/plant (53.26%), days to 50% flowering (7.25%), days to maturity (0.72%), seeds/pod (3.62%), pods/plant (9.78%), pod length (4.35%), clusters/ plant (18.84%) and 1000-seed weight (2.17%), contributed 99.99% to the total divergence. Likewise, in biochemical characters protein content (1.81%), zinc content (38.04%) and iron content (22.46%) were studied. Inter-cluster distances were larger than intra-cluster distances for biochemical traits, indicating that there was a significant degree of genetic variation among the mutant lines and these lines can be used in hybridization for rajmash improvement programme.
 
Publisher Indian Council of Agricultural Research
 
Date 2023-12-19
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/IJAgS/article/view/135595
10.56093/ijas.v93i12.135595
 
Source The Indian Journal of Agricultural Sciences; Vol. 93 No. 12 (2023); 1338–1343
2394-3319
0019-5022
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/IJAgS/article/view/135595/53435
 
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