Effects of Elevated Water Temperature on Growth of Basil Using Nutrient Film Technique

Hydroponic systems have become increasingly popular for growers in recent years year-round local production. Whereas optimal air temperature plant growth has been considered, root zone temperatures not examined as thoroughly. The objective of this research was to determine the water growing different types basil hydroponically. Research conducted at greenhouses Stillwater, OK. Seventeen cultivars were selected from six main and transplanted into Nutrient Film Technique hydroponic systems, three treatments applied: 23, 27.5, 31 °C. Height, width, average leaf area, number, chlorophyll concentration (chlorophyll readings obtained with Minolta-502 SPAD meter), shoot fresh weight, dry weight evaluated. In general, 27.5 °C greater than each other terms number but 23 treatment. treatment had greatest height, whereas (SPAD) value. Cultivar differences significant area SPAD, ‘Spicy Bush’ having smallest purple For all except ‘Large Leaf Italian’, a would be recommended growth.