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Articles by Shirzad Sure
Total Records ( 2 ) for Shirzad Sure
  Shirzad Sure , Hosein Arooie , Kamaladin Sharifzade and Reza Dalirimoghadam
  Bio-fertilizers are low cost renewable source of plant nutrients which supplement chemical fertilizers. In this study, researchers determine the influence of exogenously applied two bio-fertilizers humic acid and nitroxin on morphological characteristics, fruit yield and quality of cucumber grown under direct soil conditions in a fall planting. The experiments were carried out in a factorial trial based on completely randomized block design with three replicates. The treatments were foliar application of humic acid at 0, 10, 20 and 30 mL-1 and nitroxin at 0, 10, 20 and 30 mL-1. Humic acid and nitroxin spray started in two true leaf stages for 3 times. The results showed that all humic acid and nitroxin treatments had significant effects on growth, yield and chemical characteristics including: Number of leaf/plant DM(%) plant, fruit diameter and length, fruit yield ha-1. Also, fruit quality such as fruit firmness, total soluble sugars, fruit skin total chlorophyll, fruit skin chlorophyll a, fruit skin chlorophyll b were affected by bio-fertilizers (humic acid and nitroxin). Spraying with humic acid 30 mL-1 can be a suitable treatment for enhancing growth and yield of cucumber plant.
  Shirzad Sure , Hosein Arooie and Reza Daliri Moghadam
  Salicylic acid increases the resistance to some environmental stresses such as drought salt and chilling stress. The experiment was conducted to evaluate the effects of SA (Salicylic Acid) on morphological and physiological characteristics of medicinal pumpkin seedlings under drought stress. A trial was conducted based on completely randomized block design with 5 levels of SA pre-treatment (0, 0.5, 1, 1.5 and 2 mM) and 5 levels of SA foliar spray (0, 0.5, 1, 1.5 and 2 mM) and 3 levels of drought stress, three water deficit levels (90% FC (I1), 70% FC (I2) and 50% FC (I3)) with 3 replications. Drought stress was started at 4 true leaf stage after SA spray. The results showed that SA increased leaf area, number of leaf, number of bud leaf and chlorophyll content, respectively. Stem diameter, plantlet height, shoot and root dry weight and biomass, increased by applying SA in both method application compared to control. Seedling height, shoot dry weight and leaf area, decreased with increasing of drought stress. However, higher salicylic acid concentrations inhibited above physiological characteristics. Results show that pre-treatment and spray of salicylic acid at (2 mM) are suitable to increase drought tolerance during germination and seedling growth on medicinal pumpkin plants under drought stress.
 
 
 
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