Deficit irrigation influences yield and lycopene content of diploid and triploid watermelon
Author
Leskovar, Daniel. I.; Bang, Haejeen; Kolenda, Katarzyna; Perkins Veazie, Penélope; Franco Leemhuis, José AntonioKnowledge Area
Producción VegetalSponsors
The authors thank the Texas Department of Agriculture and USDA for their partial financial support, to Sakata, Novartis, Abbott & Cobb, Willwhite, and Sugar Creek Seeds for providing seeds, and to Tropical Star for growing the transplants.Publication date
2003-12Publisher
International Society for Horticultural ScienceBibliographic Citation
LESKOVAR, D.I., BANG, H., KOLENDA, K., PERKINS VEAZIE, P., FRANCO, J.A. Deficit Irrigation Influences Yield and Lycopene Content of Diploid and Triploid Watermelon . Acta Horticulturae, 628: 147-151, Diciembre 2003. ISSN 0567-7572Keywords
Firmeza del frutoRiego limitado
Sandia sin pepitas
Riego por goteo superficial
Abstract
Many vegetable production regions in the southwestern US are strictly
regulated on water use. In addition, demand for high quality and nutritious
vegetables has increased. This study was performed to explore the effects of deficit
irrigation on yield, fruit quality and lycopene content of red-fleshed diploid and
triploid watermelon (Citrullus lanatus (Thunb) Matsum & Nakai) cultivars.
Irrigation treatments were 1.0, 0.75 and 0.5 evapotranspiration (ET) rates. Cultivars
used were ‘Summer Flavor 710’, ‘RWW 8036’, ‘Allsweet’, ‘Sugarlee’, and ‘SWD
7302’ (diploids) and ‘Summer Sweet 5244’, ‘SWT 8706’, ‘Sugar Time’, and ‘Tri-XSunrise’
(triploids). Total water applied through a subsurface drip system was 395,
298 and 173 mm, for the 1.0, 0.75 and 0.50 ET, respectively. Total yields were highest
at 1.0 ET (53.9 t ha-1) compared with 0.5 ET (26.8 t ha-1). Triploids had a 34% higher
total yield and fewer culls (2%) compared with diploid cultivars (25%). Highest
yields were obtained for ...
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