This study investigated the potential of seaweed extract Kappaphycus alvarezii as biostimulant in 3% concentration on relative growth rate, net assimilation and root to shoot ratio mangrove propagules Rhizophora mangle L. through different day- intervals foliar application under field experiment. There were two factors included: factor A- types treatment (A1- water, A2- extract, A3- commercial ...

Photosynthesis and light O(2)-uptake of the aerial portion of the CAM plant Ananas comosus (L.) merr. were studied by CO(2) and O(2) gas exchange measurements. The amount of CO(2) which was fixed during a complete day-night cycle was equal to the amount of total net O(2) evolved. This finding justifies the assumption that in each time interval of the light period, the difference between the rat...

to determine the effects of priming and planting density on improvement of morphological and physiological traits of the two hybrid corns sc (s.c. 704) under double cropping in sari, a split plot experiment as randomized complete block design with four replications was conducted in 2010. treatments included two densities of 80 and 100 thousand plants per hectare as the first factor and osmoprim...

Transpiration from plant canopies is an important determinant of surface energy budgets at the vegetated land surface. A recent parameterization of plant transpiration and stomatal conductance (Sellers et al., 1992a) is based on enzyme kinetics in plant chloroplasts. This paper presents background concepts in plant physiology and biochemistry needed to understand and evaluate the parameterizati...

tobacco is a salt-sensitive glycophyte crop species. in this work effect of silicone (si) supplementation (1 mm as na2sio3) was studied in nicotiana rustica l. cv. basmas grown hydroponically in growth chamber under control, low (25 mm) and high (75 mm) nacl concentration for two weeks. dry matter production of leaves was depressed by salinity level as low as 25 mm and higher salt concentration...

in this study, we aimed to determine the effects of halo-priming on yield and yield components of four wheat cultivars in a saline soil. a field study was conducted in factorial based on randomized complete block design (rcbd). soil ph was 8/1 and electrical conductivity was 9 ds/m. wheat cultivars (falat, ghods, chamran and shoori4) were primed with cacl2 solutions (control, 0, 50 and 100 mm)....