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題名 | 臺南白玉米族群發芽之溫度反應=Characterization of the Germination Response to Temperature of Tainan-White Maize Populations |
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作者 | 楊舒惠; 謝光照; 吳詩都; | 書刊名 | 中華農業研究 |
卷期 | 52:1 2003.03[民92.03] |
頁次 | 頁23-30 |
分類號 | 434.11 |
關鍵詞 | 臺南白; 玉米; 發芽; 溫度; Tainan-White; Maize; Germination; Temperature; |
語文 | 中文(Chinese) |
中文摘要 | 為探討臺南白玉米族群發芽之溫度反應及種子發芽最低、最適與最高三種基本溫度,本試驗將臺灣不同地區(屏東、高雄、臺南、雲林、臺中、臺北、花蓮、臺東)所蒐集之臺南白族群,於臺中地區繁殖之後代為材料,利用生長箱於不同溫度下進行發芽試驗。試驗結果,八個族群各發芽性狀之溫度反應,一般皆呈發芽溫度愈高而發芽始期、有效發芽期間及平均發芽時間愈短之趨勢;而發芽率及發芽係數隨溫度升高而增加,至20℃~30℃時八個族群皆可達到最大,然而當溫度提升至35、40℃時則下降。綜合發芽率最高且平均發芽時間最快之溫度範圍,可知屏東、臺南、雲林、臺中、花蓮及臺東族群最適發芽溫度為25~30℃,而高雄及臺北族群最適發芽溫度則為30℃。八個地區族群種子最高發芽溫度為40~45℃。利用種子發芽所需最低溫度及溫度時間估算式求得八個臺南白玉米族群發芽最低溫之變異幅度為2.9℃~3.5℃,而發芽溫度時間之變異幅度為55.1~59.0℃d。 |
英文摘要 | Tainan White (TNW) is a native maize population which has been cultivated for over 80 years in Taiwan. TNW has been traditionally ultilized as a green corn. Eight Tainan-White maize populations collected from Pingtung, Kaohsiung, Tainan, Yunlin, Taichung, Taipei, Hualien and Taitung areas were planted at Taichung, and then, the produced seeds were used to study the effect of different temperatures on seed germination from 5-40℃ in growth Chanber. The optimum temperatures for seed germination of Pingtung, Tainan, Yunlin, Taichung, Hualien and Taitung populations were 25~30℃ and while the optimum temperature for Kaohsiung and Taipei populations was 30℃. The maximum temperatures for germination of eight populations were 40~45℃. Regression analysis showed that the minimum temperatures for seed germination were in the range of 2.9~3.5℃, and the thermal time of germination was in a range of 55.1℃~59.0℃d. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。