LIGHTING DURATIONS AND COLOR EFFECTS TO THE DIFFERENT POTATO CULTIVARS GROWTH RESPONSE AND MINI TUBERS FORMATION IN AEROPONIC SYSTEM
Published: 18 Sep 2017
Abstract: Potato (Solanum tuberosum L.) plays an important role on food diversification. But Indonesia Agriculture Ministry reported that the potato seed availability always be deficient. Therefore, it needs to develop the superior seed production technic. This study aimed to analyze the effect of lighting duration and lighting color to the potato tubers formation (Granola cv., and PPT4-Zebra cv.) in aeroponic system. Randomized Complete Block Design (RCBD) Factorial with 3 factors and 4 replications were applied. The first factor was lighting duration (L), the second was lighting color (W), and the last one was potato cultivar (V). The results showed that lighting duration, lighting color and potato cultivar significantly affect to the plant height, leaves number, stem diameter, root length, chlorophyll content, tuber number and diameter separately. There was insignificant interaction between lighting duration, lighting color and potato cultivar to the tuber weight. PPT4-Zebra cultivars expressed plant growth and tuber yield were better than Granola cultivars.
Keywords: potato, lighting durations, lighting color, aeroponic system
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