Multivariate analysis of morpho-physiological traits in bread wheat genotypes under terminal heat stress
Terminal heat stress has great impact on the quantity and quality of bread wheat that ultimately pose a serious concern about the food security. The presence of the genetic variability and suitable selection criteria is imperative for screening of genotypes for heat tolerance. Therefore, 60 advanc...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Indian Society of Plant Breeders
2022-12-01
|
| Series: | Electronic Journal of Plant Breeding |
| Subjects: | |
| Online Access: | https://www.ejplantbreeding.org/index.php/EJPB/article/view/4519 |
| _version_ | 1797851709840556032 |
|---|---|
| author | Naresh1*, Mohinder Singh Dalal, Divya Phougat, Suman Devi and Kavita |
| author_facet | Naresh1*, Mohinder Singh Dalal, Divya Phougat, Suman Devi and Kavita |
| author_sort | Naresh1*, Mohinder Singh Dalal, Divya Phougat, Suman Devi and Kavita |
| collection | DOAJ |
| description | Terminal heat stress has great impact on the quantity and quality of bread wheat that ultimately pose a serious concern
about the food security. The presence of the genetic variability and suitable selection criteria is imperative for screening
of genotypes for heat tolerance. Therefore, 60 advanced breeding lines and four standard checks were evaluated
for morpho-physiological traits under late sown condition to understand the importance of the principal component
analysis in reduction of the large correlated data into few major principal components that account for maximum
genetic variability. Out of twenty principal components, only three were retained having 67.10% contribution towards
total variability on the basis of eigen values and scree plot. Grain yield (0.995), days to heading (0.912) and plant
height (0.752) were having maximum positive loading in the first, second and third principal component respectively.
Therefore, principal component analysis holds great promise in the crop improvement programme. |
| first_indexed | 2024-04-09T19:21:05Z |
| format | Article |
| id | doaj.art-528fed9c1a464a51bc21bb05cb27cda3 |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-04-09T19:21:05Z |
| publishDate | 2022-12-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-528fed9c1a464a51bc21bb05cb27cda32023-04-05T09:51:33ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2022-12-011341180118610.37992/2022.1304.170Multivariate analysis of morpho-physiological traits in bread wheat genotypes under terminal heat stressNaresh1*, Mohinder Singh Dalal, Divya Phougat, Suman Devi and Kavita01Department of Genetics and Plant Breeding, COA, CCS HAU, Hisar *E-Mail: naresh123bhatti@gmail.comTerminal heat stress has great impact on the quantity and quality of bread wheat that ultimately pose a serious concern about the food security. The presence of the genetic variability and suitable selection criteria is imperative for screening of genotypes for heat tolerance. Therefore, 60 advanced breeding lines and four standard checks were evaluated for morpho-physiological traits under late sown condition to understand the importance of the principal component analysis in reduction of the large correlated data into few major principal components that account for maximum genetic variability. Out of twenty principal components, only three were retained having 67.10% contribution towards total variability on the basis of eigen values and scree plot. Grain yield (0.995), days to heading (0.912) and plant height (0.752) were having maximum positive loading in the first, second and third principal component respectively. Therefore, principal component analysis holds great promise in the crop improvement programme.https://www.ejplantbreeding.org/index.php/EJPB/article/view/4519terminal heat stresswheatgenetic variabilityprincipal component and scree plot |
| spellingShingle | Naresh1*, Mohinder Singh Dalal, Divya Phougat, Suman Devi and Kavita Multivariate analysis of morpho-physiological traits in bread wheat genotypes under terminal heat stress Electronic Journal of Plant Breeding terminal heat stress wheat genetic variability principal component and scree plot |
| title | Multivariate analysis of morpho-physiological traits in bread wheat genotypes under terminal heat stress |
| title_full | Multivariate analysis of morpho-physiological traits in bread wheat genotypes under terminal heat stress |
| title_fullStr | Multivariate analysis of morpho-physiological traits in bread wheat genotypes under terminal heat stress |
| title_full_unstemmed | Multivariate analysis of morpho-physiological traits in bread wheat genotypes under terminal heat stress |
| title_short | Multivariate analysis of morpho-physiological traits in bread wheat genotypes under terminal heat stress |
| title_sort | multivariate analysis of morpho physiological traits in bread wheat genotypes under terminal heat stress |
| topic | terminal heat stress wheat genetic variability principal component and scree plot |
| url | https://www.ejplantbreeding.org/index.php/EJPB/article/view/4519 |
| work_keys_str_mv | AT naresh1mohindersinghdalaldivyaphougatsumandeviandkavita multivariateanalysisofmorphophysiologicaltraitsinbreadwheatgenotypesunderterminalheatstress |