Effect of different levels of vermicompost on quantitative characteristics stevia plant (Stevia rebaudiana Bertoni)

Subject Areas :

Amirhossain Kachuei ¹ , Hossein Ali Sheibani ² , Farshad Qushchi ³

1 - Department of Agronomy, Faculty of Agriculture, Islamic Azad University rector Varamin, Tehran, Iran.
2 - Department of Agronomy, Faculty of Agriculture, Islamic Azad University rector Varamin, Tehran, Iran.
3 - Department of Agronomy, Faculty of Agriculture, Islamic Azad University rector Varamin, Tehran, Iran.

Received: 2017-01-22 Accepted : 2017-05-02 Published : 2017-05-22

Keywords: vermicompost, Planting date, quantitative characteristics, Stevia,

Abstract :

To evaluate the effect of sowing date and different levels of vermicompost on quantitative characteristics of stevia plant (Stevia rebaudiana Bertoni), an experiment in the field of education - College of Agriculture, Varamin in Tehran province - the city of Varamin in 2014 in a completely randomized design in three replications. The treatments were a major factor, planting date at four levels: 15 April, Persian date Farvardin 30, 15 May and 30th of May and sub-levels of vermicompost at four levels: control (no), use 5 tons of vermicompost per hectare, Application 10 tons, 15 tons of vermicompost per hectare and application of vermicompost per hectare. The results showed that planting date and vermicompost on stem length, leaf dry weight, shoot dry weight, internode length was statistically significant interaction between planting date and vermicompost was the longest shoot when cultured on 15 May with work won 15 ha vermicompost with 33.94 cm and minimum control on 15 April and 61.66 cm, leaf dry weight was reached when cultured on 15 May and 15 tonnes per hectare used vermicompost with 15.67 g and the lowest related to the control and on 15 April with g 6.52, the maximum length of internodes (with an average of 6.64 inches) in the treatment history of planting 15 May and 15 ha vermicompost was obtained, which Persian date Ordibehesht 15, 10 tons per hectare by planting date vermicompost had the smallest difference was not statistically related to planting date 15 Farvardin and control treatment (3.67 cm), the maximum shoot dry weight in the Persian date Ordibehesht 15 planting date , 15 ha vermicompost with 39.70 g and the lowest planting date 15 Farvardin and control (non-use of vermicompost) with 16.90 g, and use 15 tons of vermicompost on Persian date Ordibehesht 15 greatest impact on crop traits was measured.