A Study on the Interaction between Seedling Density and Cultivar on Potato Mini-Tuber Weight in Greenhouse Conditions

To study and measure the mini-tuber weights in various sizes and its effect on mini-tuber yield in various potato cultivars, a research was conducted in the form of two factor factorial. The first factor (A) was the cultivar type which included 10levels of Agria, Savalan, Marfona, Kaiser, Hermes, Arinda, Satina, Milva, Sante and Clone 397009-3, while the second factor was the seedling density including 3levels of 100, 200 and 300seedlings per square meter, in the form of completely randomized design at the greenhouse of Ardabil Wilkij Company. Traits related to the tuber weight were assessed using various diameter and weight measurements. After testing the data to be normal, ANOVA was conducted. Data mean comparison was conducted for plants cultivars and densities and also their interactions on the data derived from aforementioned traits. Research variance analysis was conducted in the form of factorial and completely randomized design. Results indicated that tuber weight in the plot was significant at one percent so that data mean analysis suggested that Marfona, Kaiser, Hermes and Milva had the highest values and were at class “a”. There was a significant difference between plants on the weight of tubers with the diameter of 8-11mm in plant at one percent. Also, results from data mean analysis suggested that Clone 397009-3 had the highest value on the weight of tubers with the diameter of 8-11mm in plant and it was at class “a”. Also, there was a significant difference among the studied cultivars on tuber weight in area unit at one percent so that mean comparison indicated that Savalan, Marfona, Kaiser, Hermes, and Milva had the highest values and were at class “a”.