美***PP SYSTEMS公司將于美***東部時間2024年2月7日上午11點邀請美***喬治亞大學(xué)Suyun Nam為全球用戶做題為“Photosynthetic efficiency and leaf gas exchange responses of lettuce to temperature and light intensities”的學(xué)術(shù)報告。

As well as light intensity, temperature conditions significantly affect photosynthetic efficiency, both conditions should be considered for optimal artificial lighting control. In this webinar, the effects of temperature and light intensity on photosynthetic efficiency and leaf gas exchange in lettuce plants were investigated. The photosynthetic acclimation process was also evaluated. Leaf gas exchange parameters and rapid A/Ci response curves with a high-speed CO2 ramping technique were measured using the CIRAS-3 Portable Photosynthesis System. The results indicate that plants use light less efficiently depending on the combinations of temperature and light intensity conditions, resulting in lower leaf gas exchange and biomass accumulation. Additionally, the increasing quantum yield of photosystem II (φPSII) over time under high light intensity suggests that plants can acclimate and improve their photosynthetic efficiency.

(文章來源于儀器網(wǎng))