Agriculture and horticulture
S.S. Zare Pak Ziaberi; M. Majidian
Abstract
To investigate the effects of zinc, boron, and sulfur on the quantitative characteristics, elements uptake, and allicin content in Ziabar local garlic (Allium sativum L.), an experiment was conducted as a completely randomized block design with three replications in 2019-20. The treatments included 1- ...
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To investigate the effects of zinc, boron, and sulfur on the quantitative characteristics, elements uptake, and allicin content in Ziabar local garlic (Allium sativum L.), an experiment was conducted as a completely randomized block design with three replications in 2019-20. The treatments included 1- control (without fertilizer use), 2- Zn, 3- B, 4- S, 5- Zn+S, 6- Zn+B, 7- B+S, and 8- S+B+Zn. Sulfur, zinc, and boron fertilizers were added to the soil as sulfur flower (100 kg ha-1), ZnSO4·7H2O (20 kg ha−1), and H3BO3 (5 kg ha−1) at two vegetative growth and bulb filling stages. The results showed that the S+B+Zn treatment was significantly superior to other treatments in all studied traits. Among the single fertilizer treatments, the highest economic yield and boron uptake rate was observed with the B application. The S application resulted in the highest S uptake. The highest Zn uptake and allicin content was observed in the Zn application treatment. Among the dual treatments, the B+S treatment caused the highest economic yield and S and B uptake rate. The Zn+B treatment showed the highest Zn uptake. The highest allicin content (29%) was observed in the S+B+Zn treatment. The highest garlic economic yield (3000 kg ha-1) and the best quality in terms of allicin content (29%), S uptake (0.73 kg ha-1), Zn uptake (39.6 kg ha-1), and B uptake (12.96 kg ha-1) were obtained in the S+B+Zn treatment. According to the present results, the use of zinc, boron, and sulfur fertilizers along with basal fertilizers could be recommended to increase the quantitative and qualitative yield of garlic.
A.R. Sedaghati; M. Kafi; Sh. Rezvan Bidokhti; Sh. Akbari
Abstract
To study the effect of planting date and density on the yield, yield components and allicin content of two garlic ecotypes (Allium sativum L.), an experiment was conducted in a farmland in Damghan, Iran during the 2011-2012 growing season. The experiment was arranged as a split-split-plot in a randomized ...
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To study the effect of planting date and density on the yield, yield components and allicin content of two garlic ecotypes (Allium sativum L.), an experiment was conducted in a farmland in Damghan, Iran during the 2011-2012 growing season. The experiment was arranged as a split-split-plot in a randomized complete block design with three replications. Three planting dates (17-Oct, 11-Nov, 6-Mar) were main plots. Two ecotypes (Kavire Damghan and Hamedan) were subplots, and three planting densities (35, 45 and 55 plants per m2) were sub-sub-plots. The effect of planting date on plant height, fresh and dry weight of bulbs, yield, diameter and dry weight of cloves was significant, and delay in planting date decreased these traits. The values of dry and fresh weight of bulbs, plant yield, dry weight and diameter of cloves and allicin content were significantly higher in Hamedan ecotype in comparison with Kavire Damghan ecotype. The planting density had significant effect on fresh and dry weight of bulb and dry weight and diameter of cloves, as these traits were reduced by increasing the density. Furthermore, the effect of planting density on height and yield of plant and number of cloves in bulb was significant. To achieve the highest fresh yield (1.7kg.m-2) and dry yield (0.27 kg.m-2), 17-Oct was identified as the best planting date. Hamedan ecotype was more favorable as it had higher bulb fresh and dry weight, diameter and dry weight of cloves, allicin contents and yield. The most desirable planting density was 55 plants per m2 due to having higher values of plant height, number of cloves in bulb and yield.
A. Bidmeshki; M.J. Arvin; K. Maghsoudi
Abstract
Drought stress is the most important factor which negatively affects the plant growth and crop productivity in arid and semi-arid areas. The main problem which Iranian farmers are faced with cultivation of garlic (Allium sativum L.) is low production efficiency and performance. Therefore, in a field ...
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Drought stress is the most important factor which negatively affects the plant growth and crop productivity in arid and semi-arid areas. The main problem which Iranian farmers are faced with cultivation of garlic (Allium sativum L.) is low production efficiency and performance. Therefore, in a field experiment, the effect of IBA (0 and 100 ppm) was studied on growth parameters, bulb yield and allicin content of a local garlic cultivar under water deficit conditions (40% reduction of available water) in 2010 in Jiroft. The results showed that drought stress significantly reduced chlorophylls (a, b and total), caretenoids, anthocyanins, bulb and allicin yield, plant fresh weight, root fresh weight and also increased ion leakage. However, it had no significant effects on the percentage of allicin. In contrast, under non-stress conditions, IBA significantly improved most recorded parameters and reduced ion leakage and amount of anthocyanins while it had no effect on product quality and quantity under water deficit conditions. Compared with the controls, IBA increased plant fresh weight, bulb yield, and allicin respectively by 30%, 19% and 25%.
