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Open Access Article

1 - Analysis Main Effective Traits on Grain Yield of Spring Canola Genotypes by Path 74 Software under Khuzestan Climate Condition
Mohammad Khayat

To determine the most important traits affecting grain yield and assessment the amount of direct and indirect effects on grain yield of each of ten rapeseed cultivars were selected and in a randomized complete block design with three replications were studied. The evalu More

To determine the most important traits affecting grain yield and assessment the amount of direct and indirect effects on grain yield of each of ten rapeseed cultivars were selected and in a randomized complete block design with three replications were studied. The evaluation of correlation coefficients illustrated that total dry matter, harvest index, thousand seed weight, number of seeds per pod, number of pods per plant, plant height, days to maturity and flowering period trait have had a significant positive correlation with grain yield. Stepwise regression and path analysis indicated that number of pods per plant had the highest direct effect on grain yield. Grain weight indirectly by increasing the number of pods per plant and total dry matter yield, flowering and maturity period traits had high direct effect on grain yield. Thus, direct selection for these traits is suggested.   Manuscript profile

Open Access Article

2 - The effect of various amounts of humic chelate magnesium and gibberellic acid on yield and yield components of cowpea
Sami Saadi Tayeb Saki Nejad

The present study intended to investigate the effect of different doses of Humic Magnesium Chelate and Gibberellin on cowpea’s growth trend and production components under field conditions in Shadegan in Summer 2014. To this end, a factorial experiment in a random More

The present study intended to investigate the effect of different doses of Humic Magnesium Chelate and Gibberellin on cowpea’s growth trend and production components under field conditions in Shadegan in Summer 2014. To this end, a factorial experiment in a randomized complete block design with three replications was conducted. The first factor included Humic Magnesium Chelate at three levels (0, 200 & 400 ml.h) and the second factor included Gibberellin at three levels (0, 150 & 300 ppm). Results of variance analysis showed that interaction between humic acid and gibberellic acid on number of pods per plant, seeds per pod, seed weight and biological yield was significant at %5 level, grain yield and harvest index was significant at %1 level. the highest grain yield was associated with the treatment of Humic Magnesium Chelate 200 ml.h and Gibberellin 150 ppm by 2.720 kg.ha; on the contrary, The lowest grain yield was observed in the control treatment by 1,950 kg.ha. Besides, the highest HI belonged to the treatment of Humic Magnesium Chelate 200 ml.h and Gibberellin 150 ppm by %40 while the lowest HI was related to the treatment of Humic Magnesium Chelate 400 ml.h and Gibberellin 300 ppm by %28. To conclude, the results of the current research showed that the effect of Gibberellin treatment was higher on different doses of measured traits than Humic Magnesium Chelate treatment; and the application of Humic Magnesium Chelate 200 ml.h and Gibberellin 150 ppm was more effective on grain yield, yield components in comparison to the consumption of the higher concentration doses. Manuscript profile

Open Access Article

3 - Investigation of the Drought stress and Silver nano-particles sprays on morphological and physiological traits on sunflower (Helianthus annuus. L)
Sayed Hamed Tabatabei Zavareh meysam oveysi Mohammad Nasri

This study aimed to investigate the effect of drought stress and foliar application of silver nanoparticles on morphological and physiological characteristics of sunflower (Helianthus annuus. L) and split-plot in a randomized complete block design with three levels of w More

This study aimed to investigate the effect of drought stress and foliar application of silver nanoparticles on morphological and physiological characteristics of sunflower (Helianthus annuus. L) and split-plot in a randomized complete block design with three levels of water stress agent the main factor (I0: 60 mm evaporation from pan class a (normal irrigation), I1: 90 mm evaporation from pan class a and I2: 120 mm evaporation from pan class a) and foliar application of silver nanoparticles four levels as subplots (NS0: sprayed with water, NS1: 50 mg nano-silver, NS2: 90 ppm silver nano, NS3: 130 mg nano-silver) and three replications. respectively. The results showed that the effects of irrigation and silver nanoparticles and their interactions at the level of one and five percent of the studied traits had significant impact. The highest yield (4038.49 kg.ha), oil yield (2134.52 kg.ha) with normal irrigation treatment, 60 mm × 130 milligrams per liter of nano-silver evaporation and biological yield (11248.8 kg.ha) with normal irrigation treatment, 60 mm × 90 mm evaporation of silver nano-grams per liter respectively. The highest chlorophyll a and normal irrigation treatment of 50 mg per liter of nanosilver with (25.05 mg) was given. Stress increases the levels of malondialdehyde (MDA). The highest MDA (MDA) with (12.71 nmol g) fresh from severe stress and weight was sprayed with purified water. The lowest yield (3091.6 kg.ha) and biological yield (8787.2kg.ha) and oil yield (1326.99kg.ha) related to severe stress, 120mm × water evaporation was observed. The lowest level of MDA of normal irrigation, 60mm evaporation with (6.19nmolg.fw) and chlorophyll a to severe stress, 120mm evaporation (17.72 mg of fresh leaf weight) less the amount of support. Manuscript profile

Open Access Article

4 - Comparing the yield and some morphological characteristics of forage corn promising genotypes in Tehran province
Homira Abbasi Moshrefi Behnam Zand Seyyed Mohammad Javad Mirhadi Farhad Azizi

In order to investigate the comparing, the yield and some morphological characteristics of forage corn promising genotypes in Tehran province, an experiment in a randomized complete block design with four replications in 2015 was conducted.  In this experiment, 17 More

In order to investigate the comparing, the yield and some morphological characteristics of forage corn promising genotypes in Tehran province, an experiment in a randomized complete block design with four replications in 2015 was conducted.  In this experiment, 17 promising genotype were evaluated. The measured characteristics was included stem diameter, ear height from the ground, ear length, leaf area index, leaves number, fresh and dry forage yield, protein content and protein yield. The variance analysis results showed that there was difference between the promising genotypes at one percent probable in the possibility of leaf area index, dry forage yield, protein content and protein yield and at five percent probable in the possibility of fresh forage yield. In terms of mean comparison, there was difference between promising genotypes at the highest ear height from the ground was not observed. The most leaf area index in genotype 10 (K166b×K18) was obtained. The most number of leaves per genotype 15 (KLM77007/7-3-1-2-2-1-1× K18 (and the most stem diameter in genotype 12 (KLM77007/7-3-1-2-2-1-1× K18 (was obtained. The most fresh forage yield in genotype 11) K47/2-2-1-3-3-1-1-1×K19 (and dry forage yield in genotype 17 (SB73×MO17 (was observed. Also the most protein percent is related to the (K47/2-2-1-3-3-1-1-1×K1 (, 12 (KLM77007/7-3-1-2-2-1-1×K18 (and 14 (K47/2-2-1-2-1-3-1-1×K18 (and the most protein yield is related to the genotypes 11 (K47/2-2-1-3-3-1-1-1×K19( and 17 )SB73×MO17(. Manuscript profile

Open Access Article

5 - Effect of super absorbent polymer on the morpho-physiological and biochemical characteristics of wheat (Triticum aestivum L.) under water deficit stress
Mohammad Reza Kazemi Farshad Ghooshchi Pourang Kasraei

This experiment studies the effects of super-physiological characteristics of wheat in drought conditions for split plot in a randomized complete block design with three replications. Main plot including different levels of water deficit stress (60, 90 and 120 mm evapor More

This experiment studies the effects of super-physiological characteristics of wheat in drought conditions for split plot in a randomized complete block design with three replications. Main plot including different levels of water deficit stress (60, 90 and 120 mm evaporation) and sub plot different amounts of polymer (zero, 15, 30 and 45 kg per ha).30 percent and biomass yield in the order of 6.42 and 10.94 percent increase compared to control polymer. In conditions of severe stress high level of polymer leads to a significant decrease in enzyme activity guaiacol (1.5 times), ascorbate peroxidase (63%), catalase (30%) and glutathione reductase (71%) compared to conditions without polymer. Even moderate levels of water stress leads to a significant reduction in chlorophyll a and b (15 and 24 percent respectively compared to control) was. But more drastic reduction in the amount of chlorophyll a and b in severe water deficit stress levels were observed (38.7, 51% reduction compared to control treatment). Using high polymer surfaces, 30 and 45 kg ha chlorophyll in plants to form a 13.42 and 20.13 percent respectively. Mild stress higher levels of polymers in organic solute had almost the same effect. While severe stress positive impact polymer was 45 kg per hector higher than 30 kg per hectare, and the accumulation of soluble sugars and proline able to hold even under mild stress. The high polymer membrane lipid peroxidation rate decreased, resulting in the production of malondialdehyde as compared to controls 53 percent. Superabsorbent polymer on grain weight, biological yield, grain yield, harvest index, guaiacol peroxidase enzymes, ascorbate peroxidase, glutathione reductase was significant, and in Kalataz the interaction is not significant.   Manuscript profile

Open Access Article

6 - The effect of putrescine foliar application on physiologic characteristics of wheat Tiriticum aestivum var sw-82-9 under cut irrigation stress
zahra Karimi Hamid Reza Tohidi Moghadam Pourang Kasraee

This experiment was conducted to effect of putrescine foliar application on physiologic characteristics of wheat (Tiriticum aestivum var sw-82-9) under water deficit stress as split pilot arrangement and randomized complete block design with three replication ( 12 plots More

This experiment was conducted to effect of putrescine foliar application on physiologic characteristics of wheat (Tiriticum aestivum var sw-82-9) under water deficit stress as split pilot arrangement and randomized complete block design with three replication ( 12 plots) at Islamic Azad University farm. The main split including four irrigation levels: normal irrigation, withholding irrigation in stem elongation , withholding irrigation in flowering and withholding irrigation in grain filling and the secondary plot including foliar application  with purred water, Putrescine foliar applications with 75 and 150 ppm.The maximum protein yield and percent was in grain filling and foliar application of putrescine (150 ppm) with 509.8 kg.ha-1  and 8.61% whereas minimum protein yield was in withholding irrigation in flowering with 387.03 and 6.5 % .Withholding irrigation in different stages of plant lifespan decreased chlorophyll a,b , a+b contents and relative water contents whereas increased protein content, proline and electrical conductivity. Putrescine foliar applications with 150 ppm improved all the mentioned characteristics to normal irrigation Manuscript profile

Open Access Article

7 - The effect of nitrogen on yield and yield components of soybean in the city of Mahmoud Abad
Mehran Mahmoodi Vatan Zakipor

To evaluate the effect of nitrogen fertilizer on yield and yield components Mahmoud Abad city Jk and 033 in a factorial experiment in a randomized complete block design with three replications. Experimental factors figure in two levels (033 JK of maturity groups ш), nit More

To evaluate the effect of nitrogen fertilizer on yield and yield components Mahmoud Abad city Jk and 033 in a factorial experiment in a randomized complete block design with three replications. Experimental factors figure in two levels (033 JK of maturity groups ш), nitrogen fertilizer at four levels (zero, 50, 100 and 150 kg N ha). The results showed that with increasing nitrogen application on grain yield increased so that application of 150 kg nitrogen per hectare compared to control treatments (no urea), increased grain yield. Among yield components, number of pods per plant and seed weight percent level of statistical probability of a five percent statistical probability levels showed a positive correlation with grain yield. In connection with the biochemical characteristics of grain, the JK highest oil content showed that with increasing nitrogen application on grain yield and oil extraction increased and leads to more protein per unit area. The results showed that G-K with the application of 150 (kg ha) N with a yield (3240 kg) maximum performance compared to no fertilizer, respectively. The results also showed that interaction of genotype and nitrogen in the oil yield of 150 kg of nitrogen JK (562 kg) compared with no fertilizer (400 kg) and 033 with the application of 150 kg nitrogen (548 kg compared with no fertilizer (341 kg), respectively. the results showed that grain yield was significantly affected by cultivar, nitrogen was used. so that the JK highest yield higher than 033 indicate so in the city Mahmud cultivation of JK Recommendation is.   Manuscript profile

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