ROLE OF PHOTOSYNTHETIC STABILITY AND PHYSIO-CHEMICAL ATTRIBUTES IN THE SELECTION OF IMPROVED COTTON GENOTYPES IN ACTUAL FIELD CONDITIONS

I JAVED; S ASHRAF; N PARVEEN; M JAMIL; W GHAFFAR; A SARDAR; MJ QAMAR; MR FAROOQ; S SALEEM; F HABIB; MI AKRAM; Z JAVEED; M KHALID; MI LATIF; A RAUF; F HUSSAIN; B ALI; W HASSAN; N MANZOOR; MI YOUSAF; S HUSSAIN

doi:10.54112/bcsrj.v2024i1.976

Authors

I JAVED University of Bradford, United Kingdom
S ASHRAF Agricultural Biotechnology Research Institute, AARI, Faisalabad
N PARVEEN Vegetable Research Institute, AARI, Faisalabad
M JAMIL Cotton Research Station, Vehari, Pakistan
W GHAFFAR Agricultural Biotechnology Research Institute, AARI, Faisalabad
A SARDAR Agricultural Biotechnology Research Institute, AARI, Faisalabad
MJ QAMAR Soil Fertility (Field), Bahawalpur, Pakistan
MR FAROOQ Soil Fertility (Field), Bahawalpur, Pakistan
S SALEEM Potato Research Station, Sahowali, Sialkot
F HABIB Soil and Water Testing Laboratory for Research, Dera Ghazi Khan, Punjab, Pakistan
MI AKRAM Regional Agricultural Research Institute, Bahawalpur, Pakistan
Z JAVEED Soil and Water Testing Laboratory for Research, Bahawalpur, Pakistan
M KHALID Soil Fertility (Field), Multan, Pakistan
MI LATIF Provencial Reference Fertilizer Testing Lab, Raiwind, Lahore
A RAUF Soil Fertility (Field), Dera Ghazi Khan, Pakistan
F HUSSAIN Agronomic Research Station, Bahawalpur, Pakistan
B ALI Agronomic Research Station, Bahawalpur, Pakistan
W HASSAN Soil and Water Testing Laboratory for Research, Bahawalpur, Pakistan
N MANZOOR Regional Agricultural Research Institute, Bahawalpur, Pakistan
MI YOUSAF Cotton Research Station, Bahawalpur, Pakistan
S HUSSAIN Regional Agricultural Research Institute, Bahawalpur, Pakistan

DOI:

https://doi.org/10.54112/bcsrj.v2024i1.976

Keywords:

Correlation, Biplot Analysis, Stomatal Conductance, Transpiration rate, Antioxidants, sCLCuV

Abstract

The current experimental study was conducted at Cotton Research Station, Bahawalpur during the cotton growing in 2022. The study was designed to evaluate the elite cotton genotypes based on their photosynthetic sustainability and other physiochemical attributes which could help in framing a selection criterion for the development of improved carton genotypes. The results revealed that highly significant variations were present among the elite cotton genotypes for studied morpho-physiological, photosynthetic and biochemical traits i.e., CLCV incidence percentage, number of bolls, sympodia per plant, boll weight, net photosynthetic rate, total chlorophyll contents, transpiration rate, stomatal conductance, sugar contents, total phenolic contents, ascorbic acid and seed cotton yield, which could be used in devising selection criteria for this election of parental material to be used in the hybridization program. Furthermore, the correlation coefficient analysis unveiled the strong correlation of seed cotton yield with transpiration rate, sugar contents, stomatal conductance, net photosynthetic rate, ginning out turn and sympodia per plant whereas a strong negative correlation was found for total phenolic contents. These results were also verified through the mean bar graphs and biplot graphs which show that these traits have the highest influence on seed cotton yield under the optimal condition.

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