不同溫度及日數之儲藏處理對菊花插穗發根之影響

Studies on Growth Efficiency of Chrysanthemum Cuttings in Difference Storage Conditions before Rooting

張致盛(Chih-Sheng Chang) ； 黃勝忠(Sheng-Chung Huang)

《臺中區農業改良場研究彙報》 49期 (1995/12) Pp. 9-18

https://doi.org/10.6956/BTDAIS.199512.0009

摘要

自田間採取黃秀芳、黃精進二品種菊花插穗，浸泡Benlate 50% 1,000倍液消毒處理，基部沾施NAA 1,000 ppm發根劑後，在95%相對濕度全日暗期生長箱中，以12℃、15℃及18℃三種溫度儲藏4天、7天及10天後再行扦插，另以未經儲藏處理立即扦插者作對照。插穗經儲藏處理後，以石臘切片觀察發現，在儲藏期根原體即已分化及發育。扦插後之調查得知，經儲藏處理可提早發根，其根長度較長，黃秀芳品種經儲藏4天及7天後根數較多根長較長，但經儲藏10天後發根數減少，惟在不同處理溫度間對其發根並無差異；黃精進品種在儲藏4及7天與12及15℃之處理根數較多，儲藏10天及18℃之處理減少發根數，但根長度較長。利用扦插前儲藏處理之方法，可縮短插穗在苗床育苗時間，在不良環境及菊花大量繁殖時，並可提高苗床使用效率，增加單位時間內育苗數量。

關鍵字

菊花 ； 扦插繁殖 ； 插穗 ； 儲藏 ； 發根

並列摘要

The cuttings of Yellow Shuho [Dendranthema grandfloria (Tzvelev.) cv. Yellow Shuho] and Yellow Jing-Jin [Dendranthema grandiflora (Tzvelev.) cv. Yellow Jing-Jin]. Chrysanthemum cutting were collected at the best stem in field, immersed in Benlate solution of 50% WP 1,000 ppm, and then treated with NAA 1,000 ppm talc powder reagent. The treated cuttings were then put into a growth chamber under the temperature of 12, 15, and 18℃and in 95% relative humidity condition for 4, 7, and 10 days. Pre-rooting storage was in dark condition through experiment. After storage in particular time intervals, cuttings were planted on rooting bench. The cuttings collected at the same time were planted directly without storage and used as a control.The results indicated that cuttings in storage condition had better growth. The root length was longer than that of without storage. Through anatomic observation by using paraffin method, root primordia were found to be differentiated and developed for these cuttings which have pre-rooting storage. It was suggested that the optimum pre-rooting storage periods were 4 - 7 days for Yellow Shuho and 7 - 10 days for Yellow Jing-Jin. The storage temperature had no effect on rooting of Yellow Shuho, but for Yellow Jing-Jin the root length was longer and the root number was lower at 18℃ than that of 12 and 15℃. Using the pre-rooting storage method could reduce the bench time and promote the production efficiency of cutting in a particular time and in a specific area.

並列關鍵字

Chrysanthemum ； cutting propagation ； cuttings ； storage ； rooting