Three-year-old eucalypt (E. grandis) plants were used in this experiment. The plants were grown in 10 L pots filled with commercial potting mixture (Biolan Oy, Kekkilä group, Finland) and supplemented with essential macronutrients N (100 mg L-1), P (30 mg L-1), and K (200 mg L-1) and micronutrients. The soil water pH in the pots was 6.2. The plants were grown in a plant growth room under the controlled environmental conditions of light intensity of 300 - 400 μmol m-2 s-1 (HPI-T Plus 400 W metal halide lamps, Philips) provided for 12 h photoperiod, day/night temperature of 28/25 °C, ambient CO2 concentration of 380-400 ppm, and relative air humidity of 60-70%. Plants were regularly watered to soil field capacity. Plants were fertilized once a week with a liquid fertilizer (Baltic Agro, Lithuania). The fertilizer included NPK (N: P2O5: K2O - 5:5:6), and micronutrients B (0.01%), Cu (0.03%), Fe (0.06%), Mn (0.028%), and Zn (0.007%), and at each time, each plant was fertilized with 80 mL diluted liquid fertilizer (ca. 0.4% solution) for the optimum plant growth.
Hpi t plus 400 w metal halide lamps
Manufactured by Philips
Sourced in Belgium
The HPI-T Plus 400 W metal halide lamps are a type of high-intensity discharge (HID) lamp designed for use in various industrial and commercial applications. These lamps produce light through the excitation of metal halide gases within the lamp's envelope. The HPI-T Plus lamps have a rated power of 400 watts and are intended to provide efficient and reliable illumination.
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Lab products found in correlation
4 protocols using hpi t plus 400 w metal halide lamps
1
Eucalyptus Growth Conditions Optimization
2
Growth Conditions of Common Bean Cultivar
3
Water Stress Effects on Brassica nigra
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Brassica nigra seeds of local source were purchased from the Department of Entomology, University of Wageningen, the Netherlands. Seeds were sown in 0.8 L plastic pots filled with commercial soil (Biolan Oy, Eura, Finland) and quartz sand (1:1 mixture) (AS Silikaat, Tallinn, Estonia). The soil was fertilized with a slow-release mineral fertilizer at an optimum level (Biolan Oy, Eura, Finland). Plants were grown at a light intensity of 400 µmol m−2 s−1 (HPI-T Plus 400 W metal halide lamps, Philips, Brussels, Belgium), relative humidity of 60%, day length of 12 h and day/night temperatures of 24/20 °C in a plant growth room. During the first three weeks, the plants were watered every other day and at the beginning of the fifth week. Then the plants were randomly divided between ‘well-watered plants’ (WW) and ‘water-stressed plants’ (WS; Figure 7 ). Watering of WW plants was continued as described above, but WS plants were watered once a week, resulting in a mild water stress as plant water potential was −0.5 to −0.8 MPa (measured with a PMS 600 pressure chamber, PMS Instrument Company, Albany, OR, USA). The experiment was conducted with mature fully-expanded leaves (ca. 3 week old leaves).
4
Tomato Growth Protocol in Controlled Conditions
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