Ali Ehsani pour; Hamid Abbasdokht; Manoochehr Gholipoor; Alireza Abdali Mashhadi
Abstract
In order to evaluate the water productivity, stem height and diameter, root dry weight, brix percentage of sugarcane, an experiment was conducted in a randomized complete block design with 14 treatments and four replications during 2016-17 at two locations in Ahwaz. The treatments were: sole sugarcane, ...
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In order to evaluate the water productivity, stem height and diameter, root dry weight, brix percentage of sugarcane, an experiment was conducted in a randomized complete block design with 14 treatments and four replications during 2016-17 at two locations in Ahwaz. The treatments were: sole sugarcane, sole soybean, sole cowpea, sole soybean+ rhizobium, sole cowpea+rhizobium, sole sugarcane+mycorrhizal, intercropping sugarcane with cowpea, intercropping sugarcane with soybean, intercropping sugarcane with cowpea+rhizobium, intercropping sugarcane with soybean + rhizobium, intercropping sugarcane+mycorrhizal and cowpea, intercropping sugarcane+mycorrhizal and soybean, intercropping sugarcane+mycorrhizal and soybean+rhizobium and intercropping sugarcane + mycorrhizal and cowpea +rhizobium. The results showed that the highest water productivity, the highest sugarcane stem height, the largest diameter in the middle of the stem and at the bottom of the stem, the highest dry weight roots and the highest brix percentage of sugarcane stem extract were related to intercropped sugarcane + mycorrhizal and cowpea+ rhizobium treatment. which was 31.61, 16.14, 32.42, 28.35, 8.89, and 8.31% higher than sole sugarcane. Mycorrhizal symbiosis was positive in sugarcane, and when mycorrhizal fungi and cowpea were present simultaneously in a treatment, their synergistic effect on the evaluated traits were positive.
Raouf Seyed sharif
Abstract
To study the effects of nano-zinc oxide and seed inoculation with brady rhizobium and plant growth promoting rhizobacteria on yield and some agronomic traits of soybean, a factorial experiment based on randomized complete block design with three replications was conducted in 2013 at the research farm ...
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To study the effects of nano-zinc oxide and seed inoculation with brady rhizobium and plant growth promoting rhizobacteria on yield and some agronomic traits of soybean, a factorial experiment based on randomized complete block design with three replications was conducted in 2013 at the research farm of the Islamic Azad University, Ardabil Branch. Treatments were foliar application of nano-zinc oxide at four levels (zero, 0.3, 0.6 and 0.9 gr/litr) and seed inoculation with brady rhizobium and plant growth promoting rhizobacteria at five levels (without inoculation as control, seed inoculation with brady Rhizobium japanicum, seed inoculation with brady rhizobium R. japanicum + Azosprillum lipoferum strain OF, seed inoculation with brady Rhizobium japanicum + Psedomonas putida strain 41, seed inoculation with brady Rhizobium japanicum + Azosprillum lipoferum + Psedomonas putida. The results showed that maximum of plant height, grain 100 weights, the number of nodules per plant and grain yield, total dry matter (530 gr/m2), crop growth rate (9.48 gr/m2.day) and relative growth rate (0.1 gr/gr.day) were obtained at foliar application of 0.9 gr/litr nano-zinc oxide + seed inoculation with rhizobium + Azosprillum + Psedomonas and the least of these indices were obtained at without foliar application of nano-zinc oxide + seed inoculation. It seems that using 0.9 gr/lit of nano-zinc oxide × seed inoculation with rhizobium and PGPR could increase the grain yield and some agronomic traits of soybean and can be recommended to the growers.
Vahideh Khalegh nejhad; farhad jabbari
Abstract
This experiment was carried out to evaluate the effect of Rhizobium strains and plant growth promoting Rhizobacteria(PGPR) on yield and yield components of chickpea (Cicer arientinum L.) Arman cultivar. This research was conducted as split plot based on randomized complete block design at Zanjan university ...
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This experiment was carried out to evaluate the effect of Rhizobium strains and plant growth promoting Rhizobacteria(PGPR) on yield and yield components of chickpea (Cicer arientinum L.) Arman cultivar. This research was conducted as split plot based on randomized complete block design at Zanjan university researchal farm. Irrigation levels(optimum irrigation during season growth and no irrigation during growth period) were set as main plots and fertilizer level(control or no application chemical and biological fertilizer, 50kg/ha Urea, seed inoculation with Mesorhizobium ciceri strain of SWRI-3,seed inoculation with Mesorhizobium ciceri strain SWRI-17, seed inoculation with PGPR,Co-inoculation with rhizobium strains SWRI-3+SWRI-17 and Co-inoculation with all biofertilizer , PGPR+SWRI-3+SWRI-17) were sets as subplots. The results of this study showed that drought stress reduced plant height, number of branches, number of seeds per plant, seed weight, biological yield and harvest index.Applicatin of biofertilizers because of positive effects on plant height, number of seeds per plant, seed weight, pod weight per plant and biological yield,produced more grain yield in comparison control and nitrogen urea fertilizer in both of arrigated and rainfed conditions.In addition ,seed co-inoculation with all of bio-fertilizers(PGPR+SWRI-3+SWRI-17) achieved more grain yield in comparison separate inoculation about 18-36% in irrigated and 34-50% in rainfed conditions.