Malihe Akrami Abarghoei; Abdolrahman Mohammadkhani; Gholamreza Rabiei
Abstract
In order to evaluate the effect of some bio-stimulators on yield and fruit quality of apricot cv. ‘Shekar pareh’ management functions were studied in the spring of 2014 in Abarkouh of Yazd province. The experiment was based on randomized complete blocks design with seven nutritional treatments ...
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In order to evaluate the effect of some bio-stimulators on yield and fruit quality of apricot cv. ‘Shekar pareh’ management functions were studied in the spring of 2014 in Abarkouh of Yazd province. The experiment was based on randomized complete blocks design with seven nutritional treatments included control (water spraying), humic acid one and two per thousand, aminol forte three and six per thousand and humi forte 0.5 and 1 per thousand in four replications. Bio stimulators were applied just spray twice during the growth period including two weeks after full bloom and a month after it. Results showed that the bio-stimulators effects significantly affected the measured traits except for the titratable acidity (based on malic acid), firmness and maturity index. Humic acid treatment reduced physical properties, total soluble solids and vitamin C. Aminol Forte with three per thousand concentrations increased most of the physical and chemical characteristics, but three per thousand to six per thousand concentrations had the effect of decreasing. Humi forte also increases fruit's carotenoid and vitamin C. Therefore, it seems that between treatments, aminol forte bio-stimulator enhanced yield and improve the quality of apricot fruit. Therefore, it can be recommended to spraing of aminol forte with three per thousand concentrations at the suitable time.
Akram Vatankhah; Abdolrahman Mohammadkhani; Sadollah Hooshmand3; Shahram Kiani
Abstract
In order to evaluate the effect of humic acid and Zn on the grape yield and mineral concentration, a factorial experiment was conducted based on a randomized complete block design with three replications. The study was done on 20 years old grapevines in the Farsan region from Chaharmahal and Bakhtiari ...
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In order to evaluate the effect of humic acid and Zn on the grape yield and mineral concentration, a factorial experiment was conducted based on a randomized complete block design with three replications. The study was done on 20 years old grapevines in the Farsan region from Chaharmahal and Bakhtiari province in 2013-2014. Each of the factors, humic acid and zinc sulfate, were applied in three levels zero, 0.1 and 0.2 weight percent, in two periods including before of flowering and two weeks after full bloom. Results showed humic acid, zinc sulfate and their interaction effects significantly affected on fruit yield, concentration of nitrogen, iron and zinc and also leaf chlorophyll content. The highest fruit yield (8.31 kg per shrub) and the lowest fruit yield (6.12 kg per shrub) obtained in humic acid 0.2 percent and control treatments, respectively. The highest leaf zinc element (49.1 mg per kg dry leaf) obtained in 0.2 present zinc sulfate. Also the results showed positive correlation between zinc concentration and some index such as fruit yield (r = 0.46), cluster weight (r = 0.45), total leaf chlorophyll (r = 0.53) and fruit TSS (r = 0.49). Based on these results, it seems to enhance the yield and improve the quality of grapes, spraying humic acid and zinc sulphate at a concentration of 0.2 percent each to be useful.