Physiological and Ecological Characteristics, and Control of The Perennial Weed Torpedograss (Panicum repens L.) in Crop Field and Turf in Ryukyu Islands, Japan
Physiological and Ecological Characteristics, and Control of The Perennial Weed Torpedograss (Panicum repens L.) in Crop Field and Turf in Ryukyu Islands, Japan
复制标题
日本琉球群岛农田及草坪多年生杂草鱼雷草（Panicum repens L.）的生理生态特征及防治
DOI：
10.3719/weed.50.96
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
M. Hossain
中科院分区：
文献类型：
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作者：
M. Hossain
植物生理学、生物学和生态学的研究对于了解植物的管理实践和可能的用途非常重要。根状茎杂草是最难控制的，因为它们通过地下繁殖体进行营养繁殖。植物物种的根茎和/或块茎在不同的土壤层中保持休眠数年，这是物种生存的因素之一。适应多变气候和土壤因素的植物难以控制，因为它们随着环境改变其形态特征，并且它们对除草剂具有抗性。灯心草（Panicum repens L.），一种多年生地下茎植物，生长在世界各地的热带和亚热带地区（北纬35度至43度）。它分布于低地沿海地区以及海拔1500至2000 m的局部内陆地区。电鳐是各种作物田、果园和高尔夫球场中的严重杂草，并使植物产量减少高达80%。它还侵入沟渠、排水沟、水道、鱼塘以及河岸和邻近地区的漂浮植被。琉球群岛（日本冲绳）的农田或高尔夫球场都受到雷草的侵扰，甘蔗是冲绳50%的耕地的主要作物，也受到这种杂草的严重侵扰。目前还没有一种综合的防治策略。本文介绍了琉球群岛甘蔗田和草坪上红藻的生理生态特性及防治对策。此外，根据该植物的生物学和生态学方面，讨论了可能的用途。
Studies on the physiology, biology and ecology of a plant species are very important for understanding its management practices and possible usages. Rhizomatous weeds are the most difficult to control due to their vegetative reproduction by underground propagules. Rhizomes and/or tubers of a plant species remain dormant in different soil layers for several years, which is one of the factors for survival of the species. The plants adapting to variable climatic and edaphic factors are difficult to control because they modify their morphological characteristics with the environments, and they are resistant to herbicides. Torpedograss (Panicum repens L.), a rhizomatous perennial plant, grows in tropical and subtropical regions (lat 35S to 43N) around the world. It is found in lowland coastal areas as well as local inland areas to elevations of 1500 to 2000m. Torpedograss is a serious weed in various crop fields, orchards and golf courses and reduces plant yield up to 80%. It also invades ditches, drains, watercourses, fishponds, and floating mats of vegetation from banks and adjacent areas. No crop field or golf course in the Ryukyu Islands (Okinawa, Japan) is free from torpedograss infestation, and sugarcane, the main crop in Okinawa covering 50% of cultivable lands, is severely infested with this weed. No comprehensive control strategy of torpedograss has yet been developed. This paper presents physiological and ecological characteristics, and control strategies of torpedograss in crop (sugarcane) field and turf in the Ryukyu Islands. In addition, possible usages of torpedograss are discussed based on biological and ecological aspects of this plant.