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国外优良无性系GT1自六十年代末在德宏垦区生产上推广种植以来,历经1973/74、1975/76年冬大寒害的考验,被公认为是抗烂高产、耐辐射低温能力强的优良品系,现已占垦区植胶面积的四分之一。今后随着林地更新,将逐步取代其他品系而成为本垦区的当家品种。本区由于纬度北(N24°—25°)、海拔高(植胶地750—1,000米)、热量不足(年均温19—20℃)、冬期辐射低温出现频繁,大部
Excellent foreign clones GT1 since the late 1960s in the Dehong reclamation area to promote the production of cultivation, after 1973/74, 1975/76 test of the winter chill, is recognized as anti-rotten high yield, strong ability to resist radiation and low temperature Line, now accounts for a quarter of reclaimed rubber planting area. In the future, with the renewal of woodland, it will gradually replace other strains and become the original varieties of this reclamation area. Due to the northern latitude (N24 ° -25 °), high altitude (750-1,000 meters of plasticized land) and insufficient heat (annual average temperature 19-20 ℃), the radiation low temperature appeared frequently in winter and most