Vol. 9, Issue 5 (2020)
Growth, flowering and yield Responce of papaya (Carica papaya L.) cv. red lady to exogenous application of salicylic acid and Jasmonic acid
Sreedhar Devarakonda, C Madhumathi, V Umamahesh, L Mukunda Lakshmi, M Lakshmi Narayana Reddy, V Vijaya Bhaskar and T Rajasekharam
A field and laboratory study was carried out during November, 2015 to October, 2017 at Horticultural Research Station, Anantharajupeta, Kadapa district, Andhra Pradesh. The positive influence of application of salicylic acid @ 150 ppm twice at 45 and 120 DAT (T9) was seen on significantly highest number of leaves (43.73) at 240 DAT which was at par with T8 (42.73) and T7 (41.07) and the lowest number of leaves was observed in T13 (control) (34.60). Further, the total chlorophyll content, chlorophyll a and chlorophyll b content were observed to be significantly high in T9 (3.30, 2.04 and 1.25 mg g-1) which was found to be at a par with T8 and T7. Number of days taken for initiation of flowering and days taken for 50% flowering were decreased significantly with the application of T9 (114.33 DAT and 130.50 DAT respectively) which was found at par with T8, T2 and T3. The corresponding values in control (T13) were found to be much higher (127 and 147.80 respectively). Almost a similar trend was observed with respect to days for first fruit initiation and number of days taken to harvest, where in the values for T9 were 146.66 DAT and 130.67 DAA respectively which were at par with T8 (145.50 DAT and 131.66 DAA). The representing values for control (T13) were 163.67 DAT and 146 DAA).Regarding yield parameters, highest yield per plot (kg) and yield per hectare (tons) were found to be highest in T9 (552.42 kg and 116.06 tons ha-1) which was at par with T8 (546.59 kg and 114.83 tons ha-1). The lowest values in this regard were recorded in control (T13) (25.20 kg, 370.57 kg and 77.85 tons ha-1).
How to cite this article:
Sreedhar Devarakonda, C Madhumathi, V Umamahesh, L Mukunda Lakshmi, M Lakshmi Narayana Reddy, V Vijaya Bhaskar, T Rajasekharam. Growth, flowering and yield Responce of papaya (Carica papaya L.) cv. red lady to exogenous application of salicylic acid and Jasmonic acid. Pharma Innovation 2020;9(5):160-165.