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中赤黑小杨是内蒙古赤峰市林研所与中国林科院林研所赤峰市八家杨树良种繁育场协作,于1960年选用黑杨为母本,小叶杨为父本进行有性杂交,1961年将其初选的混合系提供赤峰市林研所进行无性系选择。历经27年培育、观察、选择、品种比较和生产栽培试验,决选出的两个优良无性系——中赤黑小杨—♂和中赤黑小杨—♀,具有速生、抗寒和抗病虫,树干端直(最高达35米),树冠较窄等优良特性。17年生,品种比较林树高达26.5米,胸径34.19cm,平均单株材积0.9486m~3,亩产材积28.307m~3,其生长量为当地推广品种小黑杨的118％,为引进国外优良品种健杨的110％,为当地原有树种小叶杨的329％。本文总结了中赤小黑杨—♂和中赤黑小杨—♀两个优良无性系的选种程序方法、形态特征、生物学特性及栽培推广意见等。认为这两个优良品系一但广泛用于生产将会收到比小黑杨更为显著的效果,具有非常现实的生产意义。
In the red Chi Yang Chifeng City, Inner Mongolia Forest Research Institute and the Chinese Academy of Forestry Forest Research Institute Chifeng eight poplar breeding farms in collaboration in 1960, the use of black poplar as the female parent poplar for male sexual hybrids In 1961, the primary hybrid system provided Chifeng Forestry Research Institute for cloning selection. After 27 years of cultivation, observation, selection, comparison of varieties and production and cultivation experiments, two excellent clones-Zhongchiaheixiao-Yang and -Zhonghei-Yangxian-决 were chosen and identified as fast-growing, cold- Pests, trunk straight (up to 35 meters), the crown is narrow and other fine features. 17 years old, the species comparison forest tree up to 26.5 meters, diameter 34.19cm, the average single plant volume 0.9486m ~ 3, mu production volume 28.307m ~ 3, the growth of the local promotion of small Poplar 118%, for the introduction of foreign excellent 110% of the varieties of Jian Yang, 329% of the original native Populus tomentosa. This paper summarizes the selection procedures, morphological characteristics, biological characteristics, cultivation and popularization opinions of two excellent clones of Populus simonii-♂ and Populus simonii-♀. It is considered that these two fine lines, once widely used in production, will receive more significant effects than Populus nigra and have very realistic production significance.