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Production of Potato Transplants under Controlled Environment

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  024114,  2002 ASAE Annual Meeting . (doi: 10.13031/2013.9541) @2002
Authors:   Yong Hyeon Kim, Jin Kuk Kim, Sang Heon Lee, Yu Hwa Choi, and Myung Gyu Lee, Hyun Jun Kim,
Keywords:   Transplant, Plantlets, Cuttings, Evapotranspiration, Transplant Production Factory, Controlled Environment

This study was conducted to produce potato (Solanum tuberosum L. cv. Dejima) quality transplants under controlled environment Evapotranspiration rate (EVTR) of potato plantlets and cuttings increased with increasing PPF and decreasing relative humidity. Considering the evapotranspiration and survival rate of plantlets after transplanting, PPF of 50-75 molm-2s-1 and relative humidity higher than or equal to 90% can be suggested as optimal environments for healthy growth. When relative humidity was controlled at 85-100%, PPF of 100 molm-2s-1 was considered as the limit of PPF for root initiation and development of stem cuttings. Although plant height, root length, number of leaves, fresh and dry weight, and chlorophyll content were greatly affected by PPF, potato transplants grown under different PPF in transplants production factory showed externally vigorous growth.

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