Inhibitory and stimulatory effects of Melia dubia cav. drupe pulp on Capsicum annuum L. and Vigna radiata L. in laboratory and pot culture bioassays
Inhibitory and stimulatory effects of Melia dubia cav. drupe pulp on Capsicum annuum L. and Vigna radiata L. in laboratory and pot culture bioassays
- Author(s) B.K. Purohit, N.S. Thakur, Sanjeev Kumar, R.P. Gunaga,D.P. Patel and D.C. Bhuva
- Year: 2022
- Month: March
- Volume: 55
- Pages: 207-222
We determined the Melia dubia Cav. drupe pulp phytochemicals and the effects of drupe pulp aqueous extracts (0, 25, 50, 75 and 100 %) on germination in laboratory bioassays. Besides, in pot culture the effects of pulp powder (25, 50, 75 and 100 g pot-1) were determined on germination, seedling growth, biomass and quantitative and qualitative attributes of Capsicum annuum L. and Vigna radiata (L.) R. Wilczek till crop maturity. Through GCMS analysis, 24 phytochemical compounds were detected in pulp. In laboratory bioassays, aqueous extracts significantly inhibited the germination of bell pepper (C. annuum) but not of green gram (V. radiata). In pot culture studies, pulp powder applied at 25 and 50 g had synergetic effects on the growth, development and biomass of both the test crops (2 months after drupe pulp treatment). The pulp powder at 50 g lead to maximum growth and biomass in C. annuum. Pulp powder at 50 g pot-1 only enhanced the plant height of C. annuum by 5.83 %, over control, while, higher doses were inhibitory. On the contrary all the pulp powder doses stimulated the growth and seed yield of V. radiata, but the 100 g pulp was less stimulatory. This indicated that the Melia dubia drupe pulp is not harmful to the test plants; instead act as organic material to enhance the plant growth. Thus test crops could be grown in M. dubia based agroforestry system
