Genetic analysis for identification of terminal heat tolerant genotypes in wheat

Mohanty, Soumitra; Mukherjee, Siddhartha; Dash, Asit Prasad; Mandal, Arabinda

doi:10.5958/0975-6906.2017.00021.9

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“…Whereas, cluster V recorded higher cluster mean for MII, SOR content, HPR and MDA reflecting increase in the membrane damage due to lipid peroxidation leading to MDA accumulation which might be the reason behind lower yield. The order of heat tolerance based on cluster means is cluster I> cluster III> cluster IV> cluster II and cluster V. Similar method of cluster analysis was followed for the identification of terminal heat tolerant genotypes in wheat (Mohanty et al, 2017) and drought tolerant genotypes in blackgram (Mohanlal et al, 2018). The clustering analysis helped in grouping these genotypes into different groups which can be used in genetic enhancement program for further improvement for stress tolerance in black gram.…”

Section: Resultsmentioning

confidence: 99%

Genetic diversity analysis for physiological, reproductive, biochemical and yield traits of blackgram (Vigna mungo L.) genotypes under high temperature stress

2024

EJPB

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In the present study, 30 blackgram genotypes were evaluated for physiological, reproductive, biochemical and yield traits at flowering stage during summer, 2022 and 23. ANOVA showed highly significant genetic variability among the 30 blackgram genotypes for 20 heat tolerance traits studied indicating that significant amount of genetic variability among the genotypes. Higher PCV, GCV and heritability was recorded for seed yield per plant and number of pods per plant during both the years. Moreover, the results of cluster analysis for these heat tolerance traits revealed that the genotypes TBG-129, LBG-1015, PU-1804, TBG-104 and PU-31 were identified as promising genotypes under high temperature stress conditions during both the years. Principal component analysis showed that first three components showed 82.62 % of total variation during summer, 2022, whereas 77.06 % of the total variance was covered by the first two principal components during summer, 2023. The identification of genotypes displaying heat tolerance can be useful in future breeding programmes for the development of heat stress tolerant genotypes.

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Section: Resultsmentioning

confidence: 99%

Genetic diversity analysis for physiological, reproductive, biochemical and yield traits of blackgram (Vigna mungo L.) genotypes under high temperature stress

2024

EJPB

View full text Add to dashboard Cite

show abstract

Genetic analysis for identification of terminal heat tolerant genotypes in wheat

Cited by 1 publication

References 0 publications

Genetic diversity analysis for physiological, reproductive, biochemical and yield traits of blackgram (Vigna mungo L.) genotypes under high temperature stress

Genetic diversity analysis for physiological, reproductive, biochemical and yield traits of blackgram (Vigna mungo L.) genotypes under high temperature stress

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