頁籤選單縮合
題名 | 澎湖地區優勢草種的調查與收集=Investigation and Collection of Dominant Grasses on Penghu Islands |
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作者 | 呂明宗; 陳嘉昇; 王紓愍; 成游貴; | 書刊名 | 畜產研究 |
卷期 | 31:3 1998.09[民87.09] |
頁次 | 頁263-272 |
分類號 | 434.4 |
關鍵詞 | 優勢草種; 結縷草; 鐵線草; 鹽地鼠尾粟; Dominant species; Zoysia spp; Cynodon dactylon; Sporobolus virginicus; |
語文 | 中文(Chinese) |
中文摘要 | 澎湖四個主島(馬公、中屯、白沙、西嶼)中,在海濱、內陸草原或廢耕地常成大 片群落的禾草有結縷草、鐵線草、鹽地鼠尾粟、狗尾草、孟仁草、白茅及藍莖草等。路邊及 廢耕地混生之禾草有狼尾草、五節芒、蒺藜草、天竺草、龍爪茅、馬唐、星草與牛筋草等, 爬拉、舖地黍亦有局部的分布。草本之豆科植物較常見的有分布於濱海砂地之濱刀豆,以及 在草原中與禾本科混生之小葉括根及小葉鍊夾豆等。主要草種中,結縷草在海濱、沙地及乾 旱鹽份地常形成獨佔之群落;公路邊、村落附近低及土壤潮濕之處則有較多鐵線草;鼠尾粟 族群較為零星,主要分布在海邊,內陸濕地也偶見純植草地,但群落規模較小。本研究並於 鐵線草、結縷草、鹽地鼠尾粟佔優勢的 20 個地點取得 39 個樣品,種植於澎湖種畜繁殖中 心,調查葉部特性,並以 RAPD 環帶估算樣品間遺傳距離。結縷草樣品間的平均遺傳距離達 45.1 %, 鐵線草為 42.8 %、鹽地鼠尾粟為 39.8 %,顯示澎湖地區鐵線草、結縷草及鹽 地鼠尾粟的遺傳資源均極豐富。本地區地理及氣候特殊,休閒牧業及綠化草種之選擇,應自 本地草種開始,而其豐富之遺傳資源,提高本途徑之可行性。 |
英文摘要 | On the four main islands of Penghu (including ma-kung, chung-tun, pai- sha and his-yu), Zoysia spp., Cynodon dactylon, Sporobolus viginicus, Setaria vividis, Chloris barbata, Imperata cylindrica, and Dichanthium annulatum are the dominant grasses that grow on the beach, grassland and idled cultivated lands. In addition, Pennisetum purpureum, Miscanthus floridulus, Cenchrus echinatus, Panicum maximum, Dactyloctemum aegyptium, Digitaria spp., Cynodon plectostachyum, Eleusine indica also abound on roadsides and low lands and are usually mixed with other plants, while, Brachiaria mutica and Panicum repens appear only in some restricted area. The main leguminosae on the beach including Canavailia lineata. Alysicarpus spp. and Rhynchosia minima are plentiful on the grassland and are usually mixed with gramineae. Zoysia spp. is a unique species on the dry and salty land. Cynodon dactylon can be found along the roadsides, near the village or in damp places. Sporobolus viginicus grows mainly on the beach. However, a small area of pure stand can be found on the inland. For a survey of characteristics and RAPD analysis, thirty-nine samples from 20 sites were collected and transplanted to Penghu branch station, TLRI. The average genetic distance between the two accessions is 45.1% in Zoysia, 42.8% in Cynodon dactylon and 39.8% in Sporobolus viginicus. The results indicated that the genetic resources of Zoysia spp., Cynodon dactylon, and Sporobolus viginicus in Penghu area were very copious. It is feasible to get elite lines from native grasses for lawn use or leisure agriculture. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。