Liatris spicata 에 있어서 球의 크기가 生育, 開花 및 球發育에 미치는 影響 = Effect of the Separated Corm Size on Growth, Flowering and Corm Development in Liatris spicata

다국어 초록 (Multilingual Abstract)

This study was conducted in order to investigate the effect of seperated corm size on the growth, flowering and corm development after planting in Liatris spicata. Nine grades of corm with one main bud (NC), weighing 1.0-9.9g, and six grades of corm with several main bud(OC+NC), weighing 1.0-15.9g, were investigated.
The results of this study were summarized as follows:
The period from planting to germination was 13.9-22.9 days, and percentage of germinated buds in OC+NC was 70-80%. The period from planting to flowering was 102.4-117.2 days.
The larger the corm size, the higher the percentage of flowering corm. The percentage of flowering corm was 100% when the corm weight was above 4g in NC and 14g in OC+NC, and the percentage of nonflowering corm was above 40% when the corm weight was below 8g in OC+NC.
The lager the corm size, the higher the quality of flower evaluated by plant height, spike length and floret number, but when the corm weight was below 10g in NC and 16g in OC+NC, they could not produce excellent cut flower. Corm development was better in NC than OC+NC. Increasing rate of corm weight was about 5-9 times in NC, while about 3 times in OC+NC. Number of main buds of produced corm was about 3-7, and increasing rate of that was 1-2 times. The larger the separated corm size, the higher the quality of produced corm evaluated by corm weight and number of main bud. Therefore, in order to produce the excellent corm for next season's culture, it was belived that the separated corm weight should be heavier than 5g in NC and 12g in OC+NC.