Effect of Moringa oleifera leaf aqueous extract on growth and yield of rape and cabbage

摘要

The potential effect of?Moringa oleifera?leaf extract on growth and yield of cabbage (Brassica oleracia?L. var.?capitata) and rape (Brassica napus?L. var. Giant rape) was evaluated. In the greenhouse, five treatments were used: the control, where only water was added (M0), second control where ethanol 80% was added (ME),?Moringa?leaf extract applied once at two weeks from emergence (M1),?Moringa?leaf extract applied at two and four weeks from emergence (M2), and?Moringa?extract applied every two weeks to maturity, starting from two weeks from germination (M3). The same treatments were adopted in the field except the ME which was considered unnecessary after observing the results of the greenhouse experiment. Results show that?Moringa?leaf extract significantly increased above ground dry matter yield (DM), root dry matter weight and plant height for the two crops. Yields obtained at MI, M2 and M3 were increasing in ascending order from M1. Highest DM, root weight, height and crop yields in the greenhouse and field experiments were obtained at M3. The study recommends the application of extract at M3.