Vol. 11, Issue 9 (2022)

Author(s):
Sandeep Lakra, Sevan Das Khunte, Kumudani Sahu and S Saravanan

Abstract:
The present investigation was carried out under Allahabad agro-climatic conditions at the experimental field of the department of Horticulture, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology & Sciences, Allahabad (U.P.) entitled “Studies on the effect of pruning, GA₃ and NAA on plant growth, flowering, fruit yield and economics of Phalsa (Grewia asiatica L) in Allahabad region.” The pruning (30 cm, 60 cm and 90 cm) was done from old shoots of phalsa plant with the help of looper by manual labour and PGRs namely NAA (150 and 200 ppm) and GA₃ (100 and 200 ppm) were applied as foliar spray after new shoots growth. The results revealed that treatment T₆ showed the maximum number of canes per bush (13.67), number of sprouted shoots per cane (27.40), length of shoots per cane (84.64 cm), number of leaves per shoot (23.46), total number of flowers per plant (2927.41) at 75 days after pruning, fruit yield per bush (4.78 kg), fruit yield per hectare (6.94 t/ha), total soluble solids (22.82°Brix), total sugar (12.33%), and Benefit cost ratio (1:3.75), the minimum days to sprouting of shoots (36.53) and days taken to first flower (61.24). The minimum number of canes per bush (5.34), number of sprouted shoots per cane (13.09), length of shoots per cane (55.67cm), number of leaves per shoot (17.50), total number of flowers per plant (1633.34) at 75 days after pruning, fruit yield per bush (1.45 kg), fruit yield per hectare (2.06 t/ha), total soluble solids (TSS) (15.37°Brix), total sugar (8.36%), and Benefit cost ratio (1:1.15), the maximum days to sprouting of shoots (46.55) and days taken to first flower (75.37) were recorded with treatment T₀.