菊花耐淹水品種系之選拔

Selection of Waterlogging-Tolerant Chrysanthemum Varieties and Hybrid Lines

許謙信(Chian-Shinn Sheu) ； 葉德銘(Der-Ming Yeh)

《臺中區農業改良場研究彙報》 96期 (2007/09) Pp. 23-32

https://doi.org/10.6956/BTDAIS.200709.0023

摘要

將316個商業品種及226個育種品系進行三次淹水以篩選出耐淹水品種。耐淹水品種於收集之商業品種中僅選出4個品種，佔總數之1.3%。育種品系中選出11個耐淹水品系，佔總數之4.9%。比較耐淹水與對淹水敏感之品種系在淹水及無淹水之對照下生長量之變化，於2007年春季試驗選拔之品種系中，耐淹水品系經淹水後之全株乾重為對照組之0.99，高於淹水敏感之群組僅有0.21。於2006年秋冬季試驗選拔之品種系中，耐淹水品種系經淹水後，其全株乾重平均為對照組之0.71，而淹水敏感之群組僅為0.46。經兩次淹水選拔，淹水敏感之品種比耐淹水品種有較明顯的乾物種減少，而地上部與根之比值較大，此二指標可以作為選拔之標準。

關鍵字

菊花 ； 淹水 ； 耐受性 ； 品種

並列摘要

Selection of waterlogging-tolerant chrysanthemums is vital for summer season with heavy rainfall in Taiwan. There were 316 commercial varieties and 226 selected lines evaluated with waterlogging treatments for three times. Four waterlogging-tolerant varieties were selected from commercial varieties, with only 1.3% of total varieties. Eleven tolerant lines were selected, with 4.9% of total selected hybrid lines. Dry weights of flooded or controlled plants were compared according to waterlogging-tolerant or sensitive groups. The ratio of dry weight in waterlogged to controlled plants in tolerant group was 0.99, as compared to 0.21 of in sensitive group in plants in 2007 spring trial. In 2006 autumn and winter trial, ratios of dry weight in waterlogged to controlled plants in tolerant and sensitive group were 0.71 and 0.46, respectively. According to results of two trials, dry weight of waterlogged sensitive group reduced and the top/root ratio increased significantly. These two values can be used as indicators of the sensitivity to waterlogging.

並列關鍵字

chrysanthemum ； waterlogging-tolerant ； variety