List of Articles Seed size

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  1 - The effects of seed size and sulphur application on yield and yield components of three bread wheat genotypes (Triticum aestivum L.) under saline soil conditions
  Ramin Kazerani Hossein AjamNorouzi AbbasAli Norinia
  This research was carred out in “Anbar-e-olom Saline Reasearch Station” in 35 km north of Gorgan, Golestan province at the agronomy year of 1384-85.The experiment was arranged in Split-plot Factorial was in a form of Randomized Complete Blocks Design (RCBD) More

  This research was carred out in “Anbar-e-olom Saline Reasearch Station” in 35 km north of Gorgan, Golestan province at the agronomy year of 1384-85.The experiment was arranged in Split-plot Factorial was in a form of Randomized Complete Blocks Design (RCBD) in 4 replications including the main and secondary factors, on soil Clay Loam, pH8.2 and EC9.2 (dSm-1). The main factor included amounts of Sulphur (0, 500 & 1000 kg/he) and the secondary factors included the two seed size (Small and Large) and 3 genotypes of wheat (Zagros, Desconcido-7 and Kohdasht). Results showed that there was significant differences amounts the treatments and regarding (Sulphur, Seed size and Genotypes) such as, Grain yield, number of fertile stems per square meter, number of grains per spike, weight of kernel, Harvest Index (HI) of spike, HI of plant, weight of spike (gr/m2), number of spikelets per spike. By comparing the characteristics mean it was proved that using 1000 kg/ha sulphur was significant difference in grain yield parameter. Although using of sulphur 500 kg per hectare had effected more than amount not using (without sulphur) but it was not significant difference. Using the two different amounts of seed size (Large and Small) were significant difference with each other. And using of Kohdasht genotype was significant difference in grain yield parameters and as the second, Zagros genotype and as third, Desconcido-7 was significant difference with each other. Also as the reciprocal effects, Sulphur 1000 kg/ha, large seed size and Kohdasht genotype had the most amounts of grain yield and effect. Manuscript profile
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  2 - Evaluation of effects of seed size and seed deterioration on seed germination and seedling growth of wheat
  حسین AjamNorouzi افشین Soltani A.A Norinia
  In other to evaluation of effects of seed size, and deterioration of the Seedling germination and growth of wheat in a laboratory test in year 2008 at Agricultural laboratory of Islamic Azad University of Gorgan branch. The experimental design was factorial (5×3), More

  In other to evaluation of effects of seed size, and deterioration of the Seedling germination and growth of wheat in a laboratory test in year 2008 at Agricultural laboratory of Islamic Azad University of Gorgan branch. The experimental design was factorial (5×3), in the form in randomized completed design with 3 replications. Conducted seed size in 3 levels (Small, medium and Large) and seed deterioration in 5 levels (0, 10, 20, 30, and 40 days in 40oC). Results indicated that treatments were 0, 10, 20, 30, and 40 days of deterioration germination percentage maximum, day until 50% germination, root length, root, weight and shoot drymather, hetrotrophy weight decreased with increase in deterioration period. too results indicated that significant difference between treatments were seed size such as day until 50% germination, root and shoot lengthand drymather and hetrotrophy wieght. Improved seeds to increase the size of many measured factors was effective. Manuscript profile
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  3 - Effect of seed size and seed deterioration on yield and yield components of dryland wheat in saline region of Gorgan
  H. Ajam Nouruzi A. Sadeghnezhad GH. Gazanchian
  The effect of seed size and seed quality on yilde and yield components in dryland wheat were studied in saline soils in Gorgan. For this purpose, three different seed sizes of Kuhdasht variety were considerd on the basis of sieving devices achieving different sizes, lar More

  The effect of seed size and seed quality on yilde and yield components in dryland wheat were studied in saline soils in Gorgan. For this purpose, three different seed sizes of Kuhdasht variety were considerd on the basis of sieving devices achieving different sizes, large (TSM1 48 gr), medium (TSM 36 gr) and small (TSM 29 gr). seed were deteriorated on the basis of accelerated aging test. Duration of seed deterioration including (control), 2, 4, 6 and 8 days at temperature 40 º C were considered as five different treatments. Afterward, deteriorated seeds were sown in the field in desember 2007. A factorial experiment comprising those three seed size and durations of seed  deterioration (3×5)  was run within a randomized complete block design (RCBD) with four replications (in the saline areas, station of saline research Anbarolom located at 35 kilometer in north of Gorgan), The experiment was ended in july 2008 and  samples were taken by the time. The results showed seed deterioration reduced all measured crops properties including  plant height, stem and spike lenght, spikelets number per spike, grain number per spike, grain number per spikelets, total grian yield, thousand seed mass, stubble weight. The results also showed that economical and biological yield, as well as harvest index were negative affected by increasing of deterioration period. seed deterioration  plant density per unit area, leading to low yield particularly in stress condition such as salinity. The large and medium seeds were superior than small seeds in most measured factors. Manuscript profile
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  4 - The effect of defoliation stress and nitrogen fertilizer on some quantitative and qualitative traits of field pumpkin
  Samira Maleki Khezerlu Sajjad Ansari Ardali Mahdie Maleki Khezerlu Atefeh Dastur
  10.22034/aej.2016.525755
  ABSTRACT  To study the effect of defoliation stress and nitrogen on some quantitative and qualitative characteristics of filed pumpkin an experiment was conducted at Tarbiat Modares University Research Field of Agriculture Faculty. Three levels of defoliation More

  ABSTRACT  To study the effect of defoliation stress and nitrogen on some quantitative and qualitative characteristics of filed pumpkin an experiment was conducted at Tarbiat Modares University Research Field of Agriculture Faculty. Three levels of defoliation including 0, 50 and 100% and three levels of plant nitrogen fertilizing including 50, 100 and 150 kg/h were studied in a randomized complete block design in three replications with factorial arrangement. Defoliation in the milky stage and of nitrogen fertilizers in two equal split applications were applied at two-leaf and flowering stages. Harvesting was carried out in mid of October. Fruit and grain weight, grain length, width and diameter, oil content, fatty acids linoleic, oleic, palmitic and stearic were evaluated. Grain morphological characteristics were influenced by nitrogen fertilization. Using of excessive nitrogen fertilizer had no positive effect on studied traits. The effect of defoliation stress on fruit and grain weight, grain width and diameter were highly significant (P ≤0.01). Under stress conditions, the highest percentages of linoleic, oleic, palmitic and stearic acid were achieved as 5.44, 3.28, 2.17 and 2.5%, respectively and also the minimum amount of those in complete defoliation were observed as 41, 24.9, 14.5, and 4.25%, respectively. On the whole, removal of photosynthesis unit by reducing production, production disruptions and assimilates allocation, was significantly reduced between different parts of the plant's production. increased levels of fertilizer did not increase yield. Nitrogen fertilizer in 50 kg/ha and no defoliation treatments have been recommended as the most suitable treatments for access to maximum seed yield. Manuscript profile