EFFECTS OF DIFFERENT SOIL WATER LEVELS ON RADISH PRODUCTION CULTIVATED IN TWO TYPES OF PROTECTED ENVIRONMENT - DOI: 10.13083/1414-3984/reveng.v23n4p346-354

Abstract

The radish culture is sensitive to fluctuations in soil water content, however there are few studies on irrigation management and the effect of water deficit. This study was therefore conducted to evaluate the effects of irrigation on radish plants in a greenhouse. The study was conducted in the experimental area of the Department of Engineering, UFLA, in two greenhouses where one was covered with transparent polyethylene (conventional), and the other was also covered with polyethylene but along the lateral base a red mesh was installed (modified). The cultivation was drip-irrigated. A completely randomized design (CRD) was used with four levels of soil water tension (15, 30, 45 and 60 kPa) and four repetitions, for a total of 16 plots. The variables analyzed were: diameter, length and fresh matter of the bulb with root and without root, leaf area, root length, dry matter of the plant and dry matter of the bulb. The results indicated that in the two environments irrigation treatments did not influence the analyzed variables. In the environment with red mesh the values tended to be lower, except for leaf area.