This research aimed at investigating the effect of different levels of nitrogen and planting patterns on dry matter production and growth physiological indices in intercropping maize and sunflower. To do this a split plot experiment carried out based randomized complete block design with three replications in research field of Shushtar Islamic Azad University. The main plot included three level...

Background: Algerian agriculture, like many developing countries, has developed production systems based on the use of phytosanitary products. But today, these products is called into question, with awareness risks they can generate for environment, and even human health. Methods: A trial was conducted in greenhouse two varieties pea (Pisum sativum), without thiram treatment (recommended dose),...

phenotypic and genotypic diversity as well as symbiotic effectiveness of twenty one symbionts isolated from nodules of four acacia species (acacia melanoxylon, a. mearnsii, a. saligna and acacia tortillis) grown in morocco were evaluated. growth in various media (yma, yma-bbt, yma-rc), colony morphology, tolerance to stress factors (temperature, ph, salt concentrations, various heavy metals) an...

Soybean is a legume crop and it may fix efficiently atmospheric nitrogen (N) if an adequate amount of phosphorus (P) is present in the soil. The main product of nitrogen fixation in soybean root nodules is ureides. A greenhouse experiment was conducted on a low soil P silly clay soilsand mixture to evaluate the effect of P application and water regimes in a factorial combination on ureides cont...

to evaluate symbiotic effectiveness and salt tolerance of sinorhizobium meliloti strains, 50 rhizobial strains were isolated from root nodules of medicago sativa cultivated in tehran and zanjan fields. under n-free conditions, the symbiotic effectiveness of different sinorhizobium meliloti strains of bami cultivar were evaluated under greenhouse conditions using 50 sinorhizobium meliloti strain...

High specific activity [(3)H]indole-3-acetic acid (IAA) was applied to the apical bud of intact pea (Pisum sativum L. cv Greenfeast) plants. Radioactivity was detected in all tissues after 24 hours. More radioactivity accumulated in the nodules than in the parent root on a fresh weight basis and more in effective (nitrogen-fixing) nodules than in ineffective nodules (which do not fix nitrogen)....

Soybean (Glycine max.) is one of the most important legumes cultivated worldwide. Its productivity can be altered by some biotic and abiotic stresses like global warming, soil metal pollution or over-application herbicides paraquat (1,1’-dimethyl-4,4’-bipyridinium dichloride). In this study, effect oxidative stress produced addition (0, 20, 50 100 µM) during plant growth on symbiotic nitrogen f...

parsley has a very high nutritional value, containing a, b and c vitamins and mineral nutrients. in order to investigation of the effect of different nitrogen sources on parsley an experiment conducted in a factorial combination of three nitrogen forms (calcium nitrate, ammonium sulphate and urea) and four nitrogen levels (0, 100, 125, 150 kg ha-1) by using a factorial experiment based on rando...