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Effects of Night Temperature Treatment of Raising Seedlings before Transplanting on Growth and Development of Pepper  

Seo Jin-Ug (Horticulture and Breeding Dept., Andong National University)
Hwang Jae-Moon (Horticulture and Breeding Dept., Andong National University)
Oh Sei-Myung (Horticulture and Breeding Dept., Andong National University)
Publication Information
Journal of Bio-Environment Control / v.15, no.2, 2006 , pp. 149-155 More about this Journal
Abstract
This study was carried out to investigate effects of different night temperature treatments during nursery period on flower bud differentiation and growth of pepper cv. Cheongyang. Number of leaves, top fresh weight and top dry weight of pepper seedlings were increased with increasing the night temperature during nursery periods. And also flower bud differentiation and days to flowering were accelerated as increasing the night temperature. Plant height, stem diameter, branch length and intermode length of pepper after transplanting were height at the low night temperature ($28/11^{\circ}C$), but they were retarded at the high night temperature ($28/21^{\circ}C$) treatment. Number of lateral branches was significantly reduced at the high night temperature, but there was no a regular tendency in branching habit of the main stem by temperature treatments. Seedling growth before transplanting was retarded at the low night temperature but gradually recovered after transplanting into the plastic house. However, seedling growth at the high night temperature was shown in contrast to above response of the low night temperature.
Keywords
branching habit; flower bud differentiation; nursery temperature; seedling growth;
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