Response of upland cotton (<i>Gossypium hirsutum</i> L.) leaf chlorophyll content to high heat and low-soil water in the Arizona low desert.

ABSTRACT: The sustainable production of upland cotton, an economically important fiber crop, is threatened by changing environmental factors including high temperatures and low-soil water content. Both high heat and low-soil water can reduce net photosynthesis resulting in low fiber yields or poor fiber quality. Leaf chlorophyll content has a direct relationship with photosynthetic rate. Understanding how high heat and low-soil water affect chlorophyll content can identify opportunities for breeding improvement that will lead to sustainable fiber yields. A two-year field trial located in Maricopa Arizona measured leaf chlorophyll content, available soil water, ambient air temperatures, and cotton growth measurements collected by a high-clearance tractor equipped with proximal sensors. The results sh

SUBMITTER: Thompson AL 

PROVIDER: S-EPMC11558507 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature