Intraspecific variation in photosynthetic efficiency in soybean (<i>Glycine max</i> L.) varieties towards solar ultraviolet radiations.

ABSTRACT: In the current study, we used four soybean varieties PK-1029, PK-472, NRC-7, and Hardee to examine the effect of exclusion of solar UV radiation on photosynthetic efficiency and to test possible variety-dependent sensitivity to ambient UV (280-400 nm). Plants that were grown under UV exclusion filters had higher chlorophyll a and b, efficiencies of PSII and more active reaction centers indicated that PSII were substantially affected by solar UV radiation. The significant increase in net photosynthesis was linked to increased stomatal conductance and lower intercellular concentration of CO₂ in UV-excluded plants. The exclusion of solar UV increased seed mass per plant in all soybean varieties as compared to the control; this indicates that ambient UV exclusions boos

SUBMITTER: Baroniya SS 

PROVIDER: S-EPMC11515822 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature