|Title:||不同覆蓋材料對茭白幼苗生長影響之研究||Other Titles:||Studies on the Effect of Cover Materials on the Growth of Coba (Zizania latifolia Turcz.) Seedlings||Authors:||劉政道
|Issue Date:||Jan-1979||Publisher:||中國園藝學會||Journal Volume:||25||Journal Issue:||1||Start page/Pages:||30-38||Source:||中國園藝||Abstract:||
Dormancy crown of coba (Zizania latifolia Turcz.), cv. Green Shell, were used as experimental material at present study. There were five treatments, included: a) Crown reversed put in a nursery bed covered with a tunnel shaped transparent plastic sheet. b) Crown reversed put in a nursery bed covered with a tunnel shaped pale blue colored plastic sheet. c) Crown reversed put in a nursering bed covered with two layers of a tunel shaped jute bag. d) Crown reversed without any covering (check 1). This is the normal nursery method used by farmers and e) Crown not-reversed without any covering (check 2). The experimental results indicate that the nursery bed temperature is increased 8.2℃ and 6.7℃ as compared with check plots when the bed is covered with a tunnel shaped transparent and pale blue colored plastic sheet respectively. Only a little increase in nursery bed temperature was observed when it was shaded with jute bags. The plant height and fresh weight increased when the nursering bed was covered with either transparent or pale colored plastic sheet, but germination time and rate were not changed, when classified according to seedling plant height, good guality seedlings were between 80-100 cm and the heat seedlings were higher than 100 cm. The percent suitable for transplanting in the transparent and pale blue colored plastic sheet treatments were 76.9% and 69.6% respectively, while the method used by farmers had only 17.2%. However, if classified according to fresh weight of young seedlings, seedlings suitable for transplanting weighted between 8.1-12.0 g and the best seedlings were heavier than 12 g. The percentage of suitable seedlings from the treatments covered with treatments covered with transparent and pale blue colored plastic sheet were 58.8% and 44.2% respectively. While the farmers method had only 13.2%. The data show that a nursery of coba seedlings covered with transparent or pale blue colored plastic sheet will be more productive in southern Taiwan during cool winter season and the materials required are available and inexpensive.
|Appears in Collections:||(2)蔬菜系|
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