The paper presents the fruit thinning response to NAA and BA plant regulators of autochthonous cultivars of apples. The experiment was designed to evaluate NAA, over a range of concentrations （15, 20 and 30 ppm） whe...The paper presents the fruit thinning response to NAA and BA plant regulators of autochthonous cultivars of apples. The experiment was designed to evaluate NAA, over a range of concentrations （15, 20 and 30 ppm） when applied alone, and BA ＋ NAA combinations （BA--60, 100, 120 or 140 ppm ＋ NAA 5 ppm） for thinning the assessed apple cultivars. All the applied treatments with NAA and BA ＋ NAA adequately thinned ＂Senabija＂ and ＂Ko2ara＂, whereas application of NAA 20 ppm and 30 ppm and combined treatment BA 140 ppm ＋ NAA 5 ppm were effective fruit thinners for ＂Pasinka＂. In terms of the average fruit weight and number of fruits categorized as large （〉 75 mm or 〉 65 ram）, as well as from the aspect of fruit number per trunk cross-sectional area, the variant of treatment BA 140 ppm ＋ NAA 5 ppm was most effective on ＂Senabija＂ and ＂Paginka＂, whereas BA 100 ppm ＋ NAA 5 ppm had the best effect on ＂Kozara＂.展开更多
文摘The paper presents the fruit thinning response to NAA and BA plant regulators of autochthonous cultivars of apples. The experiment was designed to evaluate NAA, over a range of concentrations （15, 20 and 30 ppm） when applied alone, and BA ＋ NAA combinations （BA--60, 100, 120 or 140 ppm ＋ NAA 5 ppm） for thinning the assessed apple cultivars. All the applied treatments with NAA and BA ＋ NAA adequately thinned ＂Senabija＂ and ＂Ko2ara＂, whereas application of NAA 20 ppm and 30 ppm and combined treatment BA 140 ppm ＋ NAA 5 ppm were effective fruit thinners for ＂Pasinka＂. In terms of the average fruit weight and number of fruits categorized as large （〉 75 mm or 〉 65 ram）, as well as from the aspect of fruit number per trunk cross-sectional area, the variant of treatment BA 140 ppm ＋ NAA 5 ppm was most effective on ＂Senabija＂ and ＂Paginka＂, whereas BA 100 ppm ＋ NAA 5 ppm had the best effect on ＂Kozara＂.
