Investigating The Effect Of Silicon And Its Formulations on Biological Parameters And Density Of Tetranychus Urticae On Five Bean Varieties

Subject Areas : entomology and othea arthropods

H.  Rezaei ¹ (دانشجوی دکترای تخصصی حشره شناسی کشاورزی، دانشگاه آزاد اسلامی واحد اراک)
Shila  Goldasteh ² (دانشگاه آزاد اراک)
Elham  Sanatgar ³ (دانشگاه آزاد اراک)
A.  Nickpey ⁴ (دکترای حشره شناسی کشاورزی، دانشگاه آزاد اسلامی واحد اراک)

Received: 2019-12-22 Accepted : 2020-02-17 Published : 2020-02-20

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Abstract :

The aim of this study was to investigate the effect of silicon and its formulations on biological parameters and Tetranychus urticae sphincter density on five bean cultivars. The research is a laboratory study that was carried out in a factorial design (first factor Bean cultivar and second type of silicone consumed). The tested bean cultivars consist of five varieties of red bean, black bean, white, black and white beans. For the experiment, for each bean variety, 20 pots are considered (totally 100 pots). The silicon compounds used in the experiments include silicone fluid fertilizer, liquid potassium silicate, powder calcium silicate. From each of 20 pots of a bean cultivar, 5 pots were considered as controls, and 5 pots of liquid potassium silicate, 5 pots of powdered calcium silicate and finally on the last 5 pots of liquid fertilizer based on silicon. . Then 10 leaves of each pot are placed in a petri dish and placed on the leaves of 50 equally male and female mats, and the petri dishes are incubated at 25 ± 5 ° C and The relative humidity was 60 ± 10%. Then, in 18 days, the number of adult mites on the back and back of each leaf of each petri and the number of eggs on the back and back of them were counted with anatomical microscope, and the biological parameters and survival percentage of each stage of growth The available varieties of each bean variety were studied under a special silicone composition until the death of the last mite. SPSS-23 software was used for data analysis and Excel charts were used to draw tables charts. The results indicate that the most effective use of silicon and formulations in bean breeding, including siliciculous liquid fertilizer, liquid potassium silicate, powdered calcium silicate, has been shown to decrease the survival or survival ratio and life expectancy and decrease Turning eggs into larvae, and turning larvae into nymphs, and turning nymphs into mites.