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

Abstract

Highlights• Intraspecific variations in photosynthetic performance were studied in soybean • UV-B exclusion upregulates chlorophyll, PSII efficiency, and photosynthesis • UV-B sensitivity is greater in soybean variety Hardee/PK-472 than NRC-7/PK-1029

Effect of UV exclusion and AMF inoculation on photosynthetic parameters of Glycine max

“…Soybean is an annual, self-pollinated, diploid (2n = 2x = 40), eudicot belonging to the family Fabaceae. Recently it has been reported that soybean crop growth and productivity were drastically reduced by the ambient and enhanced UV-B radiations (Kataria et al 2021, Baroniya et al 2023. Despite a rapid upsurge in production and coverage, soybean still suffers adversely on the productivity front.…”

“…Kataria and Guruprasad (2012) experimented on four cultivars of wheat (Triticum aestivum L.) and noted maximum height and biomass accumulation increase at maturity under UV-B exclusion. According to Baroniya et al (2013Baroniya et al ( , 2023, UV-B exclusion improved stem height, leaf area, biomass, and yield parameters of different cultivars of soybean. It was also proposed that the ambient UV-B radiation resulted in the reduced growth, development, and yield of soybean plants due to the production of active oxygen species (Baroniya et al 2013).…”

“…Many indoor studies have shown that UV-B can harm the three necessary photosynthetic steps: the photophosphorylation reaction, the CO2 fixation, and stomatal control of CO2 supply, where PSII appears to be predominantly sensitive (Teramura andSullivan 1994, Kataria et al 2014). Studies utilizing filters to compare near ambient and reduced UV-B radiation indicate that current UV-B inhibits growth, photosynthesis, and yield of a number of plant species (Albert et al 2005, Ruhland et al 2005Baroniya et al 2023). UV-B largely affects leaf area along with photosynthesis, which leads to a remarkable decrease in biomass accumulation (Kataria et al 2013(Kataria et al , 2014(Kataria et al , 2021Baroniya et al 2023).…”

“…Studies utilizing filters to compare near ambient and reduced UV-B radiation indicate that current UV-B inhibits growth, photosynthesis, and yield of a number of plant species (Albert et al 2005, Ruhland et al 2005Baroniya et al 2023). UV-B largely affects leaf area along with photosynthesis, which leads to a remarkable decrease in biomass accumulation (Kataria et al 2013(Kataria et al , 2014(Kataria et al , 2021Baroniya et al 2023). Also, Bredahl et al (2004) indicated decreased photochemical efficiency under ambient UV-B, while net assimilation remained unaffected.…”

Editorial

“…In another study dealing with UV-B radiation (Baroniya et al 2023), it has been reported that four soybean varieties (namely PK-1029, PK-472, NRC-7, and Hardee) performed differently and showed a degree of UV-B sensitivity. The significant increase in net photosynthesis was linked to increased stomatal conductance and lower intercellular concentration of CO 2 in UV-excluded plants.…”