Leaf protein content and net photosynthetíc rate (P^) were estimated at monthly intervals in seven tropical deciduous tree species, námely Chukrasia tabularis, Dolichandrone atrovirens, Eugenia Jambolana, Gmelina arborea, Lannea coromandelica, Terminalia arjuna and Terminalia bellerica firom September 1990 to August 1991. Among the seven tree species examined, Terminalia arjuna exhibited a significant positive correlation (r = 0.81; p < 0.05) between leaf protein content and while in others it was found insignificant.
The relative size of the pool of electrons accumulated in stroma reductants during actinic irradiation, which can be donated to P700+ via the intersystem chain, was estimated after short-term exposure of intact Zea mays leaves to elevated temperatures. When the temperature increased from 25 to 50 °C by 5 °C steps, the relative size of the stroma electron pool went through a maximum at around 30 °C, and decreased gradually thereafter. and Ming-Xian Jin, Hualing Mi.