WebUnder heat and combined stress, the chlorophyll a:b ratios decreased only in heat tolerant genotypes at eCO 2 compared to the control. Furthermore, the heat tolerant genotypes … WebNov 11, 2024 · We observed a decreasing trend in root activity and chlorophyll content when annual herbaceous plants were grown in combination with an increasing number of C. korshinskii seeds and drought stress. The reduced root activity and decline in photosynthetic ability resulted in the inhibition of seedling growth.

Effects of Water Stress on Leaf Photosynthesis and Yield of Melon …

WebChlorophyll content tends to decrease under drought stress and the ratio of chlorophyll “a”, “b”, and carotenoid was changed, thus, in turn, causes changes in photosynthetic function . The reason for the decrease of chlorophyll content in leaves may be the degradation of chlorophyll directly caused by drought. WebJan 12, 2010 · After 7-day drought the leaf water content decreased by 5.2–6.8%. The total chlorophyll content expressed per unit dry weight increased insignificantly during the first two periods of drought but decreased by 13–15% later on. This decrease was not accompanied by changes in chlorophyll a/b ratio. synonyms factors

Plants Free Full-Text The Effect of Glycine Betaine on Nitrogen …

WebJun 16, 2024 · Drought stress reduces variable fluorescence (F v ), initiative fluorescence (F 0) and quantum yield (F v, F m) [ 10 ]. Chlorophyll a fluorescence was considered as a useful tool for screening and breeding under dry conditions and for … WebFeb 10, 2024 · This indicates a variation in the proportion of the chlorophyll a and b, as shown in Table 1. Fig. 4 Average Δ1/N 800 spectra (stressed–watered) of all the studied … WebJun 9, 2003 · The Chl a/b ratio can be a useful indicator of N partitioning within a leaf, because this ratio should be positively correlated with the ratio of PSII cores to light harvesting chlorophyll-protein complex (LHCII) … thai tea brand