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Home Publications National Nursery Proceedings 2002 Container-to-Container Transplanting: Operations and Equipment

Container-to-Container Transplanting: Operations and Equipment

Sunlight is adequate for plant growth in most sections of the US for most of the year. In late fall, winter and early spring, short days and cloudy weather may limit the amount of light available. A rule of thumb states, “1% reduction in light results in 1% reduction in growth.” Structural design, glazing materials, orientation of the greenhouse and other factors have a significant influence. Supplemental lighting is used to: 1. Maintain optimum growth and get uniform crops (photosynthesis). 2. Regulate germination, rooting growth, stem elongation and flowering (photomorphogenesis). 3. Vary the day length to keep tree seedlings from going dormant (photoperiodism).


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Author(s): John W. Bartok, Jr.

Publication: National Nursery Proceedings - 2002

Event: Western Forest and Conservation Nursery Association and the Forest Nursery Association of British Columbia Meeting
2002 - Olympia, WA

Section: Western Forest and Conservation Nursery Association and the Forest Nursery Association of British Columbia