Effect of growth regulators yield and yield parameters in sweet potato (Ipomoea batatas (L.) Lam.)

Abstract

A field experiment was carried out during kharif 2016-17 at Kittur Rani Channamma College of Horticulture, Arabhavi (Karnataka) to study the effect of growth regulators yield of sweet potato [Ipomoea batatas (L.) Lam.]. The results revealed that, there was a significant difference among the growth regulators and their combination with respect to total tuber yield. The maximum tuber yield (28.09 t ha-1) was recorded in treatment combination of GA3 @ 100 ppm and CCC @ 250 ppm (T10) as compared to other treatments. However, it was on par with the single treatment of CCC @ 300 ppm (T6) (27.01 t ha-1). The results revealed that, there was a significant difference among the growth regulators and their combination with respect to harvest index. The maximum harvest index (62.56) was recorded in treatment combination of GA3 @ 100 ppm and CCC @ 250 ppm (T10) as compared to other treatments.