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Articles by Davoud Hassanpanah
Total Records ( 6 ) for Davoud Hassanpanah
  Davoud Hassanpanah
  Plantlets produced from meristem culture of four cultivars (Agria, Savalan, Satina and Caesar) propagated by single node cuttings, in May of 2008. Experimental design was factorial on the basis of completely randomized design with two factors in three replication. Factor A was plantlets of four cultivars and factor B was four treatment (One concentrations of polyethylene glycol as -1.5 bar 1L-1 MS medium, second concentrations of potassium humate (1 mL 1L MS medium) and third concentrations of PEG (-1.5 bar) with potassium humate (1 mL 1L MS medium) and other without them as control. Chlorophyll fluorescence leaves measured by chlorophyll flurometer (OS-30p) after 30 days planting. Nitrate reductase activity (NRA) measured 30 and 40 days after planting in all of organs (leaf, stem and root). Five plantlets from each cultivar cultured in a greenhouse. The highest rate of Fv/m to Caesar under normal and normal with potassium humate and Savalan stress conditions. Consequently, cultivars were ranked in order of deficit tolerance based on reductions in Fv/Fm values. Based on Fv/Fm ranking, Agria, Caesar and Savalan cultivars were identified as water deficit tolerance. Satina and Caesar cultivars had the highest rate of NRA and Savalan and Agria the lowest in all of organs. The maximum minituber average weight, number and weight per plant for was under normal with potassium humate condition. The high value of number minituber per plant were found in Savalan and Caesar under normal, normal with potassium humate and stress with potassium humate and Caesar under stress conditions.
  Davoud Hassanpanah and Mohsen Khodadadi
  This experiment was done about suitable composition of planting bed and plantlet age in greenhouse for increasing mini-tubers number and weight per plant. This research was conducted in Ardabil in 2007 and 2008. Plantlets of potato Agria cultivar were grown under in vitro condition. Then plantlets were transferred to greenhouse in four ages of plantlets (20, 30, 40 and 50 days) on a randomized complete blocks design with four replications in greenhouse. During growth period in greenhouse, were measured the traits as plant height, main stem per plant, mini-tuber number, weight and average weight per plant and uniformity per plantlets. The results of combine analysis of variance showed that there were significant differences between years as mini-tubers weight per plant, mini-tubers average weight per plant, between plantlet age as mini-tubers number and weight per plant, mini-tubers average weight per plant and stem number per plant. Interaction of years and plantlet age were significant on mini-tubers weight per plant. Plantlets, which transferred to greenhouse after 20 and 30 days, showed higher mini-tubers number and weight per plant in compare with other ages. There was positive significant correlation between mini-tubers number with mini-tubers weight per plant and mini-tubers average weight per plant. After, the better plantlet age selected in greenhouse and plantlets age of 30 days cultured in 12 different planting beds prepared from Iran and Finland reigns on the basis of ten replications completely randomized blocks. Statistical analysis showed that the maximum number and average weight of mini-tuber per plant produced by use of three planting beds of Iran (Ardabil Neogen soil and forest peat mass with large Zeolite) and Finland (Biolan peat mass with large Zeolite).
  Reza Shahryari , Elshad Gurbanov , Aladdin Gadimov and Davoud Hassanpanah
  The present research characterized yield and yield components of 42 wheat genotypes after terminal drought stress. The experiment was in twice replicated simple rectangular lattice design, conducted at irrigated and terminal stress conditions during 2006-2007. These study genotypes had significant differences for grain yield at level of 1%. Genotypes 4057, Viking/5/Gds/4.., Sabalan and 5041 respectively with 6.313, 6.159, 5.793 and 5.774 t ha-1 had the highest yield and Gascogen has the lowest yield with 2.561 t ha-1. Mean of total grain yield for under study genotypes was 5.628 t ha-1 in non-stress and 3.305 t ha-1 in drought stress conditions. Drought stress decreased amount of grain yield 2.323 t ha-1 that was noticeable. Interaction of Genotypexenvironmental conditions was significant at probability level of 1% for grain yield. Yield of all genotypes in drought condition was lower than non-stress condition. Genotypes Viking/5/Gds/4/Anza/3/Pi.., Sabalan, 4061, 4057 and 4041 had more yield in non-stress condition and MV17/Zrn, Sabalan, Saysonz and 4032 in stress condition. Stress intensity pay attention to total grain yield was 42%. Genotypes Viking/5/Gds/4/.. and Sabalan had high grain yield and was better than other genotypes and controls (Toos and Crosse Shahi), according to GMP, STI and MSTI. And had the most amount of stress tolerance index as compared with other genotypes confirms this subject. Correlation of yield with other traits was not significant in non-stress condition. In drought condition, correlation of grain yield with 1000 grain weight and total number of tillers per plant was positively significant. ANOVA showed significant differences between osmotic pressures for coleoptile length, between genotypes for mean and maximum coleoptile length and between interactions of genotypesxosmotic pressures for mean and maximum coleoptile length. Mean comparisons showed the highest total, mean and maximum coleoptile length in -7 bar PEG+1 ml L-1 potassium humate treatments. Genotypes Sardari and Sabalan had the highest amounts of total, mean and maximum coleoptile length. With due attention to interaction genotypexosmotic pressures, genotypes Sardari, Sabalan and 4057 in -7 bar PEG+1 ml L-1 potassium humate had the most amounts of noted characters than others. In conditions of this experiment, potassium humate caused increase in tolerance rate of genotypes against drought stress.
  Davoud Hassanpanah , Elshad Gurbanov , Aladdin Gadimov and Reza Shahriari
  Plantlets produced from meristem culture of six advanced cultivars (Agria, Advanced clone 397007-9, Marfona, Sante, Satina and Ceaser) propagated by single node cuttings arranged in a RCBD base factorial design with ten replications. Factor A was plantlets produced from meristem culture of advanced cultivars and factor B was seven treatments (four concentrations of potassium humate as 0.5, 1, 1.5 and 2 mL, one concentrations of kadostim as 1 mL, compound concentration of potassium humate and kadostim as 1 ml L-1 MS media culture and without them as control). Produced plantlets transplanted into the planting beds of Pitmass (Biolan) with punce (1:1 v/v) in the greenhouse. Some of traits measured such as average weight and number of mini-tuber per plant after harvesting. Results of analysis of variances showed the significant differences between effects of kadostim and potassium humate on advanced cultivars, for transplantation into the greenhouse, stem solidity and rhizo-genesis characters. So transplantation days decreased from 30 to 13 days in MS media culture with compound of potassium humate + kadostim by concentration of 1 ml L-1 MS media culture, also decreased to 15 days in MS media culture with kadostim by concentration of 1 ml L-1 MS media culture and also decreased to 22 days in MS culture with potassium humate by concentration of 1 and 1.5 ml L-1 MS media culture and plantlets had the highest stem solidity and better rhizo-genesis in all of treatments. Agria, Sante and Marfona transplanted earlier and Ceaser transplanted later than others to the greenhouse. Compound concentration of potassium humate and kadostim 1 ml L-1 MS media culture had the highest number of mini-tubers per plant and potassium humate 0.5 ml L-1 MS and Kadostim 1 ml L-1 MS had the highest mini-tuber weight per plant and average of mini-tuber weight per plant. Agria had the highest number and average of weight of mini-tubers per plant. Potassium humate 0.5 ml L-1 MS in satina, kadostim 1 ml L-1 MS in marfona and potassium humate + kadostim 1 ml L-1 MS in Agria had the highest number of mini-tubers per plant. Increasing rate of weight and number of mini-tubers per plant with potassium humate and kadostim in all of advanced cultivars were more than control.
  Davoud Hassanpanah , Elshad Gurbanov , Aladdin Gadimov and Reza Shahriari
  This experiment was done on the three potato cultivars [Agria (susceptible), Satina (semi-tolerant) and Ceaser (tolerant to water deficit)] and three irrigation treatments (after 30 mm evaporation from basin class A, after 60 mm evaporation+spraying by Potassium Humate, and after 60 mm evaporation from basin class A) for two locations in 2007. Experimental design was Split Plot with three replications. Potassium Humate spraying (250 mL ha-1) were done in three stages of emergence, before tuberization and during tuberization period. Combined analysis of variance showed that there were significant differences between locations, cultivars, irrigation treatments and locationxcultivars interaction as effect on tuber yield. Comparison of means for irrigation treatments showed that spraying by Potassium Humate in stress condition induced increasing of tuber yield. Spraying by Potassium Humate in water deficit condition increased tuber yield up to 11.01 ton ha-1. Ceaser had the highest tuber yield. It had higher tolerance to water deficit as well. Ceaser had a high potential in control and severe stress. Decrease in yield of Ceaser after 60 mm evaporation+spraying by Potassium Humate and after 60 mm evaporation from basin class A, relative to control (after 30 mm evaporation from basin class A) was 1.03 and 13.08 ton ha-1 but for Satina was 7.83 and 16.61 ton ha-1, respectively. Satina had the lowest Environmental Variance, Environmental Variance Coefficient, Finlay and Wilkinson`s and Eberhart and Russell`s model and was the most stable cultivar. Lin and Binns parameter showed that Ceaser and Satina were the most stable cultivars. Results of GMP, STI and MSTI were very considerable and Ceaser and Satina had a high yield in water stress and control conditions.
  Davoud Hassanpanah
  This experiment carried out on three potato cultivar [Agria (susceptible), Satina (semi-tolerant) and Ceaser (tolerant to water deficit)] and four irrigation regimes (after 30 mm evaporation from basin class A; after 30 mm evaporation from basin class A with spraying by potassium humate; after 60 mm evaporation with spraying by potassium humate and after 60 mm evaporation from basin class A) for three locations of Ardabil (Alarog, Hassanbarog and Khoshkeroud) in Northwestern Iran, for two years (2007-2008). Experimental design was split plot with three replications. Potassium humate sprayed (250 mL ha-1) in the three stage of emergence, before tuberization and during tuberization period. The highest total and marketable tuber yield, plant height, tuber number and weight per plant had the lowest amount under stress conditions and the highest under normal and normal with spraying by potassium humate conditions. Use of potassium humate in water deficit condition increased tuber yield more than 0.93 and 9.63 t ha-1 under normal and stress conditions, respectively. Caesar cultivar had the highest total and marketable tuber yield, plant height, tuber weight per plant and dry matter percent under normal with spraying by potassium humate, stress with spraying by potassium humate and stress conditions and Agria cultivar under normal condition. Khoshkeroud and Alarog locations were produced the highest total and marketable tuber yield, plant height, tuber number and weight per plant.
 
 
 
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