Masoumeh Ghahremani; Ali Ebadi; ghasem parmoon; Soodabeh Jahanbakhsh
Abstract
This study was carried out to evaluate the changes in some important cell parameters under water limitation in sorghum genotypes. A factorial experiment was conducted based on randomized completely design in greenhouse, in University of Mohaghegh Ardabili in 2014. Treatments were water stress at levels ...
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This study was carried out to evaluate the changes in some important cell parameters under water limitation in sorghum genotypes. A factorial experiment was conducted based on randomized completely design in greenhouse, in University of Mohaghegh Ardabili in 2014. Treatments were water stress at levels of 85, 65, 45 and 25 percent field capacity in and three genotypes of forage sorghum (KFS2, KFS6 and KFS17). The results showed that water stress reduced the osmotic potential, relative water content, cell membrane stability redecase in one percent, also the amount of potassium, calcium, phosphorus, while increased sodium content and finaly decreased biomass. Interaction between stress and genotype only proline, soluble sugars, cell membrane stability, relative water content and biomass was statistical difference. KFS2 genotype had the highest amounts of proline, soluble sugars and nutrients, higher osmotic potential, relative water content, cell membrane stability and biomass in most severe stress levels (25 percent of field capacity). The highest contribution between proline and calcium amount for osmotic potential and membrane stability prediction. These factors also play an important role in biomass production. In general we can say the genotypes used for different mechanisms to deal with stress, however, the genotypes which use faster and less expensive methods are able to have greater tolerance to stress and will a higher yield produce.
Sara Vaziri Kateshori; Mashallah Daneshvar; Akbar Sohrabi; farhad Nazarian Firoz Abadi
Abstract
To evaluate the effects of various levels of phosphorous and foliar application of iron and zinc on grain yield and yield components of chick pea (Ciceraireintinum L.), an experiment was conducted on split plot factorial based on randomized complete block design with three replications during 2010- 2011 ...
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To evaluate the effects of various levels of phosphorous and foliar application of iron and zinc on grain yield and yield components of chick pea (Ciceraireintinum L.), an experiment was conducted on split plot factorial based on randomized complete block design with three replications during 2010- 2011 growth season at the Agricultural College Research Farm, Lorestan University. Factors included phosphorous fertilizer at three levels (P1=0 kg/ha, P2=100 kg/ha, P3=200 kg/ha, soil application) in the main plots. Fe and Zn each at three levels (F1, Z1=0, F2, Z2 = 0.3 and F3, Z3 =0.6 percent, foliar application) were placed in the sub plots. The results showed that P, Fe and Zn levels had significant effects on grain yield, number of pod per m2 and 100 seed weight. Interaction effect of P and Fe was significant on biological yield, grain yield, 100 seed weight and number of pod per m2. Also interaction effect of P and Zn was significant on grain yield. Interaction effects of P, Fe and Zn were significant on grain yield, 100 seed weight and biological yield. The maximum grain yield was obtained from P3F3Z3 treatment with grain yield 1228 kg/ha. It seems P3F3Z3 treatment is optimum amount for chick pea (cultivar ILC482) under the study condition.
Mohammad Reza Asgharipour; Mosa Khatamipour
Abstract
Filed experiment was conducted to study the effect of manure and various combinations of foxtail millet and mungbean intercropping on the grain yield, weed performance,and the nutrients concentration in millet. The experimental design was a split plot with three replications. Main plots were differentmanure ...
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Filed experiment was conducted to study the effect of manure and various combinations of foxtail millet and mungbean intercropping on the grain yield, weed performance,and the nutrients concentration in millet. The experimental design was a split plot with three replications. Main plots were differentmanure rates (0, 15 and 30 t ha-1) and the subplots comprised five combinations of intercropping (sole millet and mungbean, combinations of 100% millet+15% millet, 100% millet+30% millet, 100% millet+45% millet).Manure, intercropping and interactions between them significantly influenced the grain yield of both crops. The highest grain yield in mungbean was observed in combination of 100%millet+30% mungbean along with application of 30 t manure ha-1. The combination of 100%millet+45%mungbean had the greatest absorption of radiation. Intercropping of millet and mungbean controlled weeds better than sole culture. Combinations of 100%millet+45%mungbean and 100%millet+15%mungbean along with application of 30 t manure ha-1 exhibited the greatest N and K in grains of millet, respectively.
Azam Razavi Nasab; Hossein Shirani; Ahmad Taj abadi pour; Hossein Dashti
Volume 13, Issue 1 , August 2011, , Pages 31-42
Abstract
To study the effect of salinity and organic matter on chemical composition and root morphology of pistachio cv. Badami, budded on seedling root stocks, a greenhouse experiment was conducted as a factorial based on a completely randomized design with three replications. Treatments consisted of four salinity ...
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To study the effect of salinity and organic matter on chemical composition and root morphology of pistachio cv. Badami, budded on seedling root stocks, a greenhouse experiment was conducted as a factorial based on a completely randomized design with three replications. Treatments consisted of four salinity (zero, 800, 1600 and 2400 mg NaCl kg-1 soil) and three organic matter (zero, two and four percent w/w) levels as farmyard manure. As salinity levels increased, shoot nitrogen concentration decreased. Organic matter application increased shoot nitrogen concentration and interaction of salinity and organic matter on this parameter was not significant. Also, salinity had no significant effect on shoot potassium content, while with increasing salinity, root potassium concentration decreased. Application of organic matter increased shoot and root potassium concentration. Adding salinity and organic matter levels increased shoot and root cu concentration significantly. Similar trend was observed on Fe concentration. As salinity levels elevated, root length and density significantly reduced. In addition, adding organic matter improved physical and nutritional soil properties, and because of that significantly increased root length and density and decreased soil penetration.