Correlation analysis of stem hardness traits with fiber and yield-related traits in core collections of Gossypium hirsutum

Abstract Background Stem hardness is one of the major influencing factors for plant architecture in upland cotton ( Gossypium hirsutum L.). Evaluating phenotypic traits very important selection elite lines resistance to lodging L. Cotton breeders are interested using diverse genotypes enhance fiber quality and high-yield. Few pieces research its relationship with yield were found. This study was designed find stem contributing cotton. Results Experiments carried out measure bending, acupuncture, compression properties from a collection genotypes, comprising 237 accessions. The results showed that genotypic difference highly significant among (BL, BU, AL, AU, CL, CU) have positive association yield-related traits. Statistical analyses descriptive statistics result bending BU) has maximum coefficient variance, but length strength less variance genotypes. Principal component analysis (PCA) trimmed quantitative characters into nine principal components. first components (PC) Eigenvalues > 1 explained 86% variation accessions Both 2017 2018, PCA indicated BL, FL, FE, LI contributed their variability PC1, CU, FD, LP, FWPB shown PC2. Conclusion We describe here systematic mechanism involved regulation enhancing by strength, G. .