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Abstract
An alley cropping trial with various vegetable crops and Leucaena leucocephala (Lam.) de Wit was carried out on an Oxic Paleustalf soil in southern Nigeria. With application of N, P, and K fertilizer, there were no yield differences between crops grown with alley cropping compared to control plots. With no fertilizer application, alley-cropped paitsai (Brassica chinensis L.) enhanced yield and plant mineral concentration. Alley cropping gave higher plant stand of direct-seeded paitsai, mainly due to reduced soil erosion.
Abstract
High temperature tended to aggravate injury caused to tomato plants by flooding. Based on plant responses such as chlorosis, epinasty, and wilting, less than 0.2% (8 of 4630 accessions) of the world collection of the garden tomato (Lycopersicon esculentum Mill.) and related Lycopersicon species exhibited some level of tolerance to a short period of flooding associated with high temperature. The level of flood tolerance in one of the 8 flood tolerant accessions, L-123, was found to be less than that of 7 other vegetables tested.