通辽地区文冠果树种优良丰产单株筛选研究

Types of Xanthoceras sorbifolia Selecting High-yield and High-quality Plants the Speciesin Tongliao Area

对通辽地区文冠果现有林经济指标进行调查的结果表明:在八仙筒林场及章古台村51年生文冠果大树中,筛选出全部经济性状均达到优树标准丰产稳产的优良单株4棵;每棵优树5年内平均树冠投影面积、种子产量分别为0.353、0.307、0.312、0.291 kg/m^2,且4株优树从未歇枝,连续丰产。

In order to provide essential materials for selective breeding of Xanthoceras sorbifolia. Thisstudy was conducted over the investigation of existing forest economic indicators of Xanthoceras sorbifolia inTongliao. The result showsed that the screen out all economic traits meet the criteria of excellent tree, highyield and stability the 4 fine individual of 51 year old trees in Baxiantong plantations and Zhanggutai village .The plus tree in within5 years, Seed yield of average crown projection area was 0.353 kg、 0.307 kg、 0.312 kgand 0.291 kg. The 4 Plus Tree never break branches and continuous high yield.