to estimate combining ability and the model of gene action for some quantitative characters, 5 different rice genotypes were used for producing a half diallel hybrids. to consider 7 quantitative traits, hybrids and their corresponding parents were evaluated based on a randomized complete block design with three replications at the rice research station of amol, iran in 2007. mean squares regard...

Stand establishment problems occur frequently in Arkansas rice fields and are commonly associated with cool soil temperatures (early planting) and saturated soils. There are several factors that affect rice stand establishment including diseases and insects. It is important to understand what pathogens or pests are the cause of stand problems in rice for managing stand establishment problems. I...

China imports most of its potassium (K) requirements for crop production. The objective of this study was to evaluate indica rice hybrids for Kuse efficiency. Twenty-eight indica rice hybrids were evaluated in nutrient solution. The K influx rate was greatest in genotype Weiyou 64 (684.9 nmol K plant h) and least in genotype Xie A/909 (457.2 nmol K plant h). The K-use efficiency was greatest in...

Salinity is one of the major abiotic stresses affecting rice growth and yield worldwide. In rice, most critical stages which affect salinity at a greater level are germination, vegetative reproductive stages.It very important to know genotypic variation among landraces under saline conditions seed germination stage reduce harmful effect salinity. The present study conducted on Petri plate was m...

in order to evaluate the effects of nitrogen fertilizer on yield, yield components and dry matter remobilization of different rice genotypes, a field experiment was carried out at the farm of ramin agricultural and natural resources university (ahwaz/iran) during 2007. experiment was arranged in a split plot based on randomized complete block design with three replications. four nitrogen fertil...

Abstract The higher water consumption in the flooding irrigation system has challenged rice cultivation. Applying management techniques that help to save and increase productivity is necessary deal with shortage. We evaluated growth, yield, consumption, responses genotypes techniques. experiment was arranged a split-plot design three replications at Rice Research Institute of Iran, Mazandaran. ...