Diferentes temperaturas da água de irrigação em feijão mungo (Vigna radiata L.)

Abstract

The “mungo-verde” bean is a grain of the genus Vigna, little cultivated in Brazil compared to other cultures and its consumption occurs mainly in the form of Moyashi, that is, bean sprouts. The objective of this work was to determine the influence of irrigation water temperature on the growth of green mung bean. The experiment was carried out in pots in the greenhouse of the Nursery of the Federal University of Mato Grosso - Campus de Sinop, from February 9, 2023 to March 31, 2023. The experimental design was randomized blocks (DBC), with four replications. The treatments were six irrigation water temperatures: 10°, 20°, 30°, 40°, 50° and 60° Celsius (C). Irrigation began right after sowing, with a 3-day watering shift and an irrigation depth of 500 milliliters (mL) per pot, with their respective temperatures. t was evaluated at the phenological stage R8, 49 days after sowing (DAS), plant height (AP), stem diameter (DC), leaf area (AF), root dry mass (MSR) and part dry mass aerial (MSPA), medium chlorophyll (CLO). Irrigation with a water temperature of 60ºC reduces the vegetative growth of the green mung bean crop. Irrigation at 10°C is the most recommended because, in addition to positively influencing vegetative growth, it provides the greatest root development of green mung bean plants.