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KMID : 0903619970380030283
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Journal of the Korean Society for Horticultural Science
1997 Volume.38 No. 3 p.283 ~ p.287
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Stem Elongation and Flowering Response as Affected by Bulb Cold Storage and Light Quality in Tulipa Forcing
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Abstract
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Flowering was markedly accelerated by dry storage at 2℃ or 5℃ for 8 weeks + outdoor moist storage for 8 weeks and outdoor moist storage for 16 weeks as compared to other treatments. Blasting rate increased with outdoor moist storage without dry storage. Length of 1st internode was considerably elongated by dry storage at 2℃ or 5℃ for 8 weeks. Dark treatment at the beginning of forcing was not effective on flowering as compared with GA₃ treatment. Length of 1st internode was reduced by prolonging of dark treatment. The latter growing period was increased with blue light treatment when bulbs were stored at 5℃ for 9 weeks than 6 weeks at 5℃. Stem elongation was somewhat reduced by far-red and orange light treatment when bulbs were stored at 5℃ for 15 weeks, but there was no significant difference between 5℃ for 6 and 9 weeks. Flowering rate was decreased with red, far-red, blue and orange light when bulbs were stored 5℃ for 9 weeks than 15 weeks at 5℃.
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