morteza Barmaki; damoon rajabzadeh; Khadijeh Aghaeifard
Abstract
Objective: The present research was conducted in order to investigate the effect of different levels of Magnesium sulfate and Manganese sulfate on yield and some quantitative traits of Potato in Agria cultivar.
Methods: The experiment was conducted as a factorial in the form of a randomized complete ...
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Objective: The present research was conducted in order to investigate the effect of different levels of Magnesium sulfate and Manganese sulfate on yield and some quantitative traits of Potato in Agria cultivar.
Methods: The experiment was conducted as a factorial in the form of a randomized complete block design with three replications during 2018- 2019 growing season in Nir city. The first factor included foliar application of Manganese sulfate at two levels: control and 5 per thousand, and the second factor involved foliar application of Magnesium sulfate at five levels: (control, 1.5, 3, 4.5, and 6 per thousand), used in the stages of early tuberculosis and 50% tuberculosis.
Results: The results of analysis of variance showed that with the exception of the number of stems and the number of uneconomical tubers, the effect of Manganese sulfate on the number of usable tubers at the level of five percent and in the other studied traits was significant at 1% level. The effect of Magnesium sulfate had a significant effect on plant height at 5% level and on other studied traits at 1% level. However, the interaction of experimental treatments was not significant. The highest tuber yield of 44.9 t.ha-1 belonged to foliar application with a concentration of 5 per thousand manganese sulfate. The highest effect of Magnesium sulfate foliar application on the number of usable tubers was 34.4%, compared to the control. On average, foliar application of Magnesium sulfate increased tuber yield by 12.3%, compared to the control treatment.
Conclusion: Considering that in most of the studied traits, foliar application of 5 per thousand Manganese sulfate and 4.5 per thousand Magnesium sulfate showed better results than other treatments, these fertilizer levels can be recommended for this cultivar in this area.
Narges Khatun Jokar; Moazzam Hassanpour Asil
Abstract
In order to evaluate the effects of gibberellic acid and vermicompost on growth and flowering of daffodil flower, a factorial experiment has been conducted under greenhouse conditions, based on completely randomized design with 12 treatments and three replications and four samples in each replication. ...
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In order to evaluate the effects of gibberellic acid and vermicompost on growth and flowering of daffodil flower, a factorial experiment has been conducted under greenhouse conditions, based on completely randomized design with 12 treatments and three replications and four samples in each replication. The first factor involves vermicompost in four levels, namely 0 (control), 10%, 15%, and 20% of potted soil (V/V) and the second factor, three levels of gibberellic acid, 0 (control), 150, and 300 mg/L, all applied by dipping the bulbs for 48 hours. Results of analysis variance of the data show that the impacts of gibberellic acid and vermicompost on most traits such as leaf area, vase life, number of leaves, chlorophyll index, TSS, leaf phosphorus, and leaf potassium have displayed significant effects (P<0.01), compared to the control. Also gibberellic acid and vermicompost have had significant impacts (P<0.01) on carotenoid (0.28 mg.g-1Fw), leaf nitrogen (2.07%), root fresh weight (11 g), root dry weight (1.1 g), and stem diameter (8.11 mm). Also, the duration of flowering stem appearance has had significant effects (P<0.05). This study’s results show that the application of vermicompost at 20% level and gibberellic acid with a concentration of 300 mg/L have improved the growth and accelerated flowering with an average of 10 days, increasing the vase life of flowers with an average of four days with a noticeable difference, compared to the control.