臺灣中部地區秋冬季定植菊花之開花習性

Seasonal Flowering Responses of Chrysanthemum Planted in Autumn and Winter in Central Taiwan

許謙信(Chian-Shinn Sheu) ； 葉德銘(Der-Ming Yeh) ； 陳彥睿(Yuan-Ray Chen) ； 黃勝忠(Sheng-Chung Huang)

《臺中區農業改良場研究彙報》 77期 (2002/12) Pp. 53-64

https://doi.org/10.6956/BTDAIS.200212.0053

摘要

本研究於臺灣中部平地及海拔1,100 m之山地，測試60個菊花栽培品種及選育品系對冬季低溫期之開花反應。有52個參試品種（系）於8月份至2月份間種植可以開花。依冬季季節開花習性之不同，將之分為六群。對低溫較敏感之第一群及第二群共有18個品種（系），其遭遇低溫時，開花延遲之日數超過三週。秋植開花季節時間短之第三群及第六群共有7個品種（系），但晚冬與春植其開花延遲或不開花。對低溫稍敏感之第四群及不敏感之第五群分別有17個及10個品種（系），此耐低溫品種（系）可作為秋冬季種植或育種時選擇親本之參考。

關鍵字

菊花 ； 開花 ； 溫度

並列摘要

Flowering responses, in terms of days to flowering and number of nodes below the flower, were studied in 60 cultivars or breeding selections by planting monthly at Taichung District Agricultural Improvement Station and Chung-Yang farm in autumn and winter, respectively. Fifty-two out of 60 cultivars or selections flowered when planted monthly from August 1999 to February 2000. Six groups can be classified according to their seasonal changes of days to flowering. For the groups I and II consisting 18 cultivars or selections, the flowering time delayed for 3 weeks or more when planted in December and January as compared to those planted in autumn. For the groups III and VI containing 7 cvs or selections, the flowering time was shorter when planted in autumn but longer in winter and spring. The 17 cultivars or selections were less cool-sensitive in the group IV and 10 cvs. were cool-insensitive in the group V selected. The insensitive cvs or selections in low-temperature can be used as the parents in breeding program for winter cultivation in Taiwan.

並列關鍵字

chrysanthemum ； flowering ； temperature