A premature senescence and death 128 (psd128) mutant was isolated from an ethyl methane sulfonate-induced rice IR64 mutant bank. The premature senescence phenotype appeared at the six-leaf stage and the plant died at the early heading stage. psd128 exhibited impaired chloroplast development with significantly reduced photosynthetic ability, chlorophyll and carotenoid contents, root vigor, solub...

in order to evaluate some agronomical management on weed control in sugar beet this experiment was conducted at safi-abad agr.res.center, dezful in 2002 and 2004. tow planting dates, september 16 and october 12 and five cultivator applications, one and two time application at 4-6 and 6-8 leaf stages, respectively and once plus hand hoeing, weedy and weed free checks arranged in split plot desig...

azam  kadkhodaie1, mohammad bagheri2* 1-young researchers club, ardestan branch, islamic azad university, ardestan, iran 2-ardestan branch, islamic azad university, ardestan, iran       *corresponding author:  e-mail:[email protected]      received: 31 jun 2012 accepted: 8 october 2012     abstract tolerance to salt (nacl) and drought conditions of treated seeds (control, osmopriming and h...

Drought stress reduces the yield and production of tomato (Lycopersicum esculentum Mill.). Tomato does not naturally accumulate glycinebetaine (GB) in the cells under natural conditions. Effects of exogenous glycinebetaine on some morpho-physiological characteristics of Lycopersicum esculentum Mill. cv. PS was evaluated at different levels of drought stress. The experiment was conducted in a fa...

mohammad bakhshian1*, hossein heidari sharifabad2 1- agriculture university of jiroft, kerman, iran 2- department of agriculture (crop physiologist), science and research university, branch of tehran,iran *corresponding author email: [email protected] received: 2 june 2015                                                                         accepted: 21 june 2015 abstract to evaluate the...

greenhouse and laboratory studies were conducted to examine the allelopathic effects of water extracts of pigweed (amaranthus retroflexu l.) leaf, stem, root and flower at different growth stages on canola seed germination and seedling growth. water extracts of leaf, stem, root and flower as individually, binary, ternary and quadri mixtures at 0, 50 and 100% concentrations were made and their e...

in order to evaluate the effects of biofertilizer on soybean (glycine max l.) seed vigor that produced under water deficit condition and related traits, an experiment was conducted in a factorial layout based of complete randomized block design with four replications at the research greenhouse of aboureihan campus- tehran university, iran. experimental treatments were include biofertilizer (see...

Interactions between elevated [CO2] and soil water availability have the potential impact on crops and future food security of the world. The study was conducted to investigate vegetative growth response of soybeans under two [CO2] (380 and 800 μmol mol−1) with three soil moisture levels in controlled environment. Slow growth rate and altered crop phenology of soybeans were observed under eleva...