We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Production, water-use efficiency and post-harvest quality of hydroponic mini watermelon under salinity stress.
- Authors
Gomes do Ó, Laís Monique; Watanabe Cova, Alide Mitsue; de Azevedo Neto, André Dias; Ganda Souza, Marcela; Leite Santos, Andressa; Gheyi, Hans Raj
- Abstract
Irregularity or shortage of rainfall in semi-arid regions forces farmers to use low-quality water to irrigate crops. The present study aimed to assess the water-use efficiency and post-harvest quality of 'Sugar Baby' mini watermelon in response to different electrical conductivities of the nutrient solution [2.5 (control), 3.5, 4.5, 5.5 and 6.5 dS m-1], in a floating hydroponic system. The experimental design was completely randomized, with four replicates. The water consumption, production and water-use efficiency were evaluated, as well as qualitative and physico-chemical variables of the fruits. The total water consumption of the plants during the crop cycle varied between 43 (6.5 dS m-1) and 54 (2.5 dS m-1) L plant-1 among the treatments, with water-use efficiency of 0.031 kg L-1. The greatest reductions due to the nutrient solution salinity were observed for the rind thickness and fruit mass (8.80 and 5.69 %, respectively, per unit increase in dS m-1). The salinity of the nutrient solution did not influence the soluble solids content and fruit maturity index, but it had a negative effect on the pH and titratable acidity.
- Subjects
WATER efficiency; FRUIT skins; WATER consumption; PLANT-water relationships; SALINITY
- Publication
Agricultural Research in the Tropics / Pesquisa Agropecuária Tropical, 2021, Vol 51, p1
- ISSN
1517-6398
- Publication type
Article
- DOI
10.1590/1983-40632021v5167054