Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/81534
標題: 日夜溫差處理對初秋甘藍穴盤苗生育之影響
Influence of DIF on the Growth of "K-Y cross" Cabbage (Brassica oleracea L. var. capitata L.) Seedlings
作者: 游平越
Pin-Yueh Yu
李文汕
張武男
Wen-Shann Lee
Woo-Nang Chang
關鍵字: DIF(the difference between day temperature and night temperature)
初秋
Cabbage
穴盤苗
日夜溫差
甘藍
摘要: DIF處理對甘藍穴盤苗株高與莖長的影響反應十分相似,0DIF和-DIF處理之株高及莖長均顯著小於+DIF處理。在莖徑方面,也以+DIF處理之莖徑較粗,處理5天者為3.08mm及10天者為3.10mm。當DIF由正值遞減至負值時,葉面積、地上部乾重及地下部乾重均呈現減少的趨勢。定植後的0-7天,以-DIF處理10天之苗株在定植後平均相對生長速率上,有較差的表象,如:株高0.002cm/day、葉面積6.58cm2/day、地上部乾重27.3mg/day及地下部乾重5.52mg/day,但在定植後7-14及14-28天,各性狀之平均相對生長速率已恢復,處理間差異已不顯著。地上部乾重/地下部乾方面,不論在處理後的定植當天或定植後7、14、28天之整個調查時期中,處理間的差異並不顯著。
The seedling height and stem length responded similarly under DIF treatments. The height and stem length in 0 DIF and - DIF treatments were significantly lower than that is + DIF treatment. The stem diameter of + DIF treatment were for 5 and 10 days of treatment were 3.08 and 3.10 mm, respectively and larger than others. When DIF value decreased, the mean relative growth rate (MRGR) of leaf area, top dry weight, and root dry weight decreased. Seedlings in - DIF treatments for 10 days had the lowest MRGR at the first 7 days after transplanting and the rates showed 0.002cm/day on height, 6.58 cm2/day in leaf area, 27.3 mg/day in top dry weight, and 5.52 mg/day in root dry weight were not significantly different after 7 days of transplanting among all DIF treatments. The T/R ratio was not significant different before or after transplanting in DIF treatments.
URI: http://hdl.handle.net/11455/81534
ISSN: 0255-5921
Appears in Collections:第21期
園藝學系

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