Two field experiments were carried out to evaluate the effects of Moringa leaf extract on the growth, yield and yield components of snap bean. The results showed that Moringa leaf extract applied at 11, 20, 33 and 50% concentration to snap bean plants at 10 days after emergence significantly (P ≤ 0.05) increased vegetative growth, leaf chlorophyll content, plant dry matter (shoot and root), yield components and fresh pod yield. The snap bean response to increasing Moringa extract concentration was quadratic with respect to plant height, leaf area, leaf number, leaf chlorophyll content, shoot dry matter and root dry matter. However, Moringa leaf extract significantly (P ≤ 0.05) reduced shoot and root water contents. Due to the Moringa extracts-induced increase in vegetative growth, leaf chlorophyll content, yield components and yield of snap beans, it was concluded that Moringa leaf extract could be used to enhance the growth and development of snap beans.
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