Iran. J. Field Crops Research

grain yield drought stress pseudomonas stomatal conductance monoculture azospirillum sowing date photosynthetic pigments relative water content seed yield biomass azospirillium harvest index vitamin c vermicompost tomatoes brix index biochar optimum values nitrogen losses environmental scenario chemical fertilizers upland cotton tolerance to verticillium wil fiber technological characteri salicylic acid protein proline ascorbic acid integrated fertilizer stimulant microelement pigment oilseed correlation cultivar ceres-maize model adaptation strategy weed control number of spikes spring rapeseed cultivars reduction of grain yield oil content yield components planting date phenological stage growth-degree day quantum yield active nodules stability regional yield factor intake efficiency data analysis organic carbon nitrogen use efficiency nitrogen harvest index cover crop sugar content lai extraction coefficient bolting flowering evaluation dry matter digestibility cyanidric acid crude protein chorophyll auxin sustainable agriculture planting arrangements nanofertilizer land equivalent irrigation management azotobacter spike photosynthetic mechanism gene expression flag leaf enzyme activity growing degree days fst water use efficiency seed protein optimal density transplanting leaf relative water content carotenoid radicle plumule cold autumn planting crop capacity biological yield salinity putrescine mycorrhiza biofertilizers 1000 grains weight flag leaf protein chlorophyll index anthocyanin soil map production center distribution map cultivated area climate synthetic cultivars heterosis heritability nitrogen fertilizer global warming potential fossil fuel ecological capacity carbon efficiency tuber nitrogen percentage nitrogen efficiency fertilization management environmental health evapotranspiration chlorophyll wheat sugarcane compost khuzestan heat stress biological fertilizer root weight grain filling period chlorophyll content plant growth promoting bacteri npk concentration methionine lysine radiation use efficiency leaf nitrogen growth habit susceptibility index root volume photosynthesis rate yield sodium silicate potassium sulfate cutting test calcium chloride yield variability simulation model phenology panel data analysis climate adaptation