جستجوی مقالات مرتبط با کلیدواژه "روغن ولک" در نشریات گروه "منابع طبیعی"

In this research, the effect of application of two effective chemicals on bud-break for increasing pistachio (Pistacia vera L.) economic yield in Akbari cultivar in salty (16.1 dS/m) and non-salt (3.9 dS/m) conditions in Gerd kouh and Bahadoran regions was investigated based on a randomized complete block design (BCRD) in compare to oil volk 5.5% and 6% and control. Selective compounds were (soybean oil 5.5 and 6%+ kno3 0.5%) and soybean oil 5.5 and 6%+ kno3 0.5%+ GA 20 mg/l). Each treatment was performed with 50 replications and four observed for each replication. In all regions, the effect of treatments was investigated on the traits related to quantity, quality and nut yield and finally, statistical data analysis was performed using SAS software (version 9.1) and economic calculations related to each treatment were performed in compare to the commercial treatment. The results showed that application of (soybean oil 5.5 and 6%+ kno3 0.5%) and (soybean oil 5.5 and 6%+ kno3 0.5%+ GA 20 mg/l) compounds on Akbari cultivar in Gerd Kouh and Bahadoran regions by increasing the percentage of fruit set, average number of seeds per cluster and decreasing the blank nuts percentage were increased the nut economic yield per hectare in compare to control and oil Volk treatments. treatment (soybean oil 5.5 and 6%+ kno3 0.5%) in Gerd Kouh and Bahadoran regions was increased nut yield rate 49.75% and 44.13% in compare to control and 6.91% and 3.07% in compare to oil Volk 5.5 and 6% respectively. Also, treatment (soybean oil 5.5 and 6%+ kno3 0.5%+ GA 20 mg/l) in Gerd Kouh and Bahadoran regions was increased nut yield rate 104.03% and 107.83% in compare to control and 45.43% and 48.39% in compare to oil Volk 5.5 and 6% respectively.

This study was conducted to investigate the effect of foliar application of volck mineral oil (0, 1, 3 and 5%) on photosynthesis, gas exchanges and physiological traits of two olive cultivars (Manzanilla and Khediri) as split plot based on randomized complete block design with four replications during 2019-2020 in Ahvaz climatic conditions. The results showed that the application of 5% volck oil reduced photosynthesis in Khediri and Manzanilla cultivars by 40 and 52.4% compared to the control treatment in the second week after foliar application and then the photosynthesis rate increased again. In Khediri and Manzanilla cultivars, transpiration rate increased with the use of volck oil in all three concentrations compared to the control, but there was no definite trend. Stomatal conductance was higher in Khediri cultivar than Manzanilla cultivar and the highest stomatal conductance occurred 45 days after treatment. The lowest and highest leaf temperatures were recorded in control and 3% of volck oil treatment with mean temperatures of 29.34 and 32.17 ° C, respectively. In both cultivars, a decrease in radiation use efficiency was recorded in response to volck oil and high percentage of leaf drop (59.05%) was observed in Manzanilla. Therefore, in order to use high doses of volck mineral oil for olive trees, it should be done more cautiously due to the reduction of photosynthesis and increase in leaf temperature in both cultivars and the high rate of leaf drop in Manzanilla cultivar.