OP-367等3个北美杨品种在新疆伊犁的引种试验

Introduction Tests of 3 Varieties of Poplar Which Were Introduced from USA in Yili Prefecture of Xinjiang

通过对引进的OP-367、DN-34、NM-6等3个北美杨品种与当地优良品种进行育苗、造林试验,结果表明:苗期DN-34杨封顶较早,高生长与其他品种有一定差异,造林成活率最高,为94.7%;扦插造林3 a来,OP-367杨生长量最大,胸径6.93 cm,树高8.8 m;造林5 a来,3个品种未发生冻害、风折等现象。

Seedling-raising and afforestation tests of local varieties with 3 poplar varieties（OP-367,DN-34,NM-6） which were introduced from USA were conducted.Result shows that： DN-34 poplar,whose height growth have certain differences with other varieties,has very early top-cutting time;DN-34 poplar with the survival rate of 94.7% is the highest.OP-367 poplar,whose DBH and tree height is 6.93 cm and 8.8 m respectively,has the most growth increment over the past 3 years for cutting;freeze injury,wind broken and other phenomena haven＇t occurred among 3 varieties of poplar in recent 5 years.