Roya Mousavi; Vida Chalavi; Kamran Ghasemi; Mehdi Hadadinejad
Abstract
To investigate the effect of nitroxin and vermicompost on the qualitative and functional characteristics of blackberry, a factorial experiment was conducted in a completely randomized design with four replications in pots. The first factor was the percentage of vermicompost at five levels (0, 10, 20, ...
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To investigate the effect of nitroxin and vermicompost on the qualitative and functional characteristics of blackberry, a factorial experiment was conducted in a completely randomized design with four replications in pots. The first factor was the percentage of vermicompost at five levels (0, 10, 20, 30 and 40) and the second factor was the level of inoculation and non-inoculation with nitroxin (Ni). The results showed that the treatments had a significant effect on the studied traits. The highest fruit weight, number of fruits, and yield was observed in 20% vermicompost. Maximum fruit length (1.62 cm) obtained in 10% vermicompost and nitroxin inoculation. The highest fruit diameter was obtained in 30% vermicompost. Also, in biochemical parameters, the application of 10% vermicompost produced the most soluble solids and flavor index. The highest amount of anthocyanin at 551 and 563 (mg/L fruit juice) was obtained respectably in 20 and 30% vermicompost treatments. Application of nitroxin along with vermicompost yielded 30% of the most vitamin C. In general, the results showed that the application of vermicompost at levels of 20 to 30% has the best effect on the quantitative and qualitative traits of blackberry and nitroxin can reduce the negative effect of high vermicompost and increase the effect of vermicompost on the blackberry plant.
Fereshteh Kamiab; Mohamad Abedini; Masoud Khezri
Abstract
Generally, fruit trees should produce sufficient yield annually through their economic life. Fruit trees usually produce flowers over their ability of productivity. If all of the flowers are converted to fruit, the tree will be weak and poor smaller fruit will be produced and it may cause alternate bearing. ...
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Generally, fruit trees should produce sufficient yield annually through their economic life. Fruit trees usually produce flowers over their ability of productivity. If all of the flowers are converted to fruit, the tree will be weak and poor smaller fruit will be produced and it may cause alternate bearing. Thus some flowers must be removed by hand, mechanically or chemically. In this study, the effects of hand thinning (10, 20 and 40 percent cluster elimination) and foliar treatment of Naphthalene Acetic Acid (5, 10, 20 and 40 mg/l) and ethephon (25, 50, 100 and 200 mg/l) on fruit thinning rate and on some quantitative and qualitative characters of seedless barberry fruit were investigated as a completely randomized block design in research garden of Birjand University in 2014. The results indicated that Naphthalene acetic acid and Ethephon application caused effective fruit thinning. The highest rate of thinning was observed in Naphthalene acetic acid (10 mg/l) and ethephon (50 mg/l) treatments. These treatments also increased the yield rate in comparison to control. Hand thinning, Naphthalene Acetic Acid and Ethephon application increased the length, diameter and volume of fruit, fresh weight (100 berry), dry weight (100 berry), anthocyanins, ascorbic acid, total soluble solids, total soluble solids to acid ratio. Thus both chemical treatments are suitable and ethephon (50 mg/l) is the best treatment.