Correlation Analysis of stem hardness traits with fiber and yield-related traits in core collections of Gossypium hirsutum
Background Stem hardness is one of the major influencing factors for plant architecture in upland cotton (Gossypium hirsutum L.). Evaluating hardness phenotypic traits is very important for the selection of elite lines for resistance to lodging in Gossypium hirsutum L. Cotton breeder are interested in using diverse genotypes to enhance fiber quality and high-yield. The research for hardness and its relation with fiber quality and yield were very few. This study was designed to find the relationship of stem hardness traits with fiber quality and yield contributing traits of upland cotton.
Results Experiments were carried out to measure the bending, acupuncture, and compression properties of the stem from a collection of upland cotton genotypes, comprising 237 accessions. The results showed that the genotypic difference in stem hardness was highly significant among the genotypes, and the stem hardness traits (BL, BU, AL, AU, CL, and CU) have a positive association with fiber quality traits and yield-related traits. Statistical analyses of the results showed that bending (BL, BU) has a maximum coefficient of variance and trait fiber length and fiber strength have less coefficient of variance among the genotypes. Principal component analysis (PCA) reduced quantitative characters into nine principal components. The first nine principal components (PC) with Eigenvalues >1 explained 86% of the variation among 237 accessions of the cotton crop. Both 2017& 2018, PCA results indicated that BL, BU, FL, FE, and LI variables contributed their variability in PC1 and BU, AU, CU, FD, LP, and FWPB have shown their variability in PC2.
Conclusion We describe here, to the best of our knowledge, the systematic study of the mechanism involved in the regulation of enhancing fiber quality and yield by stem bending strength, acupuncture, and compression properties of Gossypium hirsutum crop.
Figure 1
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Due to technical limitations, the tables can only be accessed as a download in the supplementary files.
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Posted 21 Aug, 2020
On 31 Jan, 2021
Received 20 Jan, 2021
Received 20 Jan, 2021
On 13 Jan, 2021
Received 31 Aug, 2020
On 26 Aug, 2020
On 24 Aug, 2020
Invitations sent on 23 Aug, 2020
On 20 Aug, 2020
On 19 Aug, 2020
On 19 Aug, 2020
Received 30 Jul, 2020
On 30 Jul, 2020
Received 13 Jul, 2020
Received 13 Jul, 2020
On 07 Jul, 2020
Invitations sent on 02 Jul, 2020
On 02 Jul, 2020
On 02 Jul, 2020
On 17 Jun, 2020
On 16 Jun, 2020
On 16 Jun, 2020
On 16 Jun, 2020
Correlation Analysis of stem hardness traits with fiber and yield-related traits in core collections of Gossypium hirsutum
Posted 21 Aug, 2020
On 31 Jan, 2021
Received 20 Jan, 2021
Received 20 Jan, 2021
On 13 Jan, 2021
Received 31 Aug, 2020
On 26 Aug, 2020
On 24 Aug, 2020
Invitations sent on 23 Aug, 2020
On 20 Aug, 2020
On 19 Aug, 2020
On 19 Aug, 2020
Received 30 Jul, 2020
On 30 Jul, 2020
Received 13 Jul, 2020
Received 13 Jul, 2020
On 07 Jul, 2020
Invitations sent on 02 Jul, 2020
On 02 Jul, 2020
On 02 Jul, 2020
On 17 Jun, 2020
On 16 Jun, 2020
On 16 Jun, 2020
On 16 Jun, 2020
Background Stem hardness is one of the major influencing factors for plant architecture in upland cotton (Gossypium hirsutum L.). Evaluating hardness phenotypic traits is very important for the selection of elite lines for resistance to lodging in Gossypium hirsutum L. Cotton breeder are interested in using diverse genotypes to enhance fiber quality and high-yield. The research for hardness and its relation with fiber quality and yield were very few. This study was designed to find the relationship of stem hardness traits with fiber quality and yield contributing traits of upland cotton.
Results Experiments were carried out to measure the bending, acupuncture, and compression properties of the stem from a collection of upland cotton genotypes, comprising 237 accessions. The results showed that the genotypic difference in stem hardness was highly significant among the genotypes, and the stem hardness traits (BL, BU, AL, AU, CL, and CU) have a positive association with fiber quality traits and yield-related traits. Statistical analyses of the results showed that bending (BL, BU) has a maximum coefficient of variance and trait fiber length and fiber strength have less coefficient of variance among the genotypes. Principal component analysis (PCA) reduced quantitative characters into nine principal components. The first nine principal components (PC) with Eigenvalues >1 explained 86% of the variation among 237 accessions of the cotton crop. Both 2017& 2018, PCA results indicated that BL, BU, FL, FE, and LI variables contributed their variability in PC1 and BU, AU, CU, FD, LP, and FWPB have shown their variability in PC2.
Conclusion We describe here, to the best of our knowledge, the systematic study of the mechanism involved in the regulation of enhancing fiber quality and yield by stem bending strength, acupuncture, and compression properties of Gossypium hirsutum crop.
Figure 1
Figure 2
Due to technical limitations, the tables can only be accessed as a download in the supplementary files.