论文部分内容阅读
对初选较好的２７个种源，幼林期（４年生和６年生）在浙南龙泉和浙北桐庐的生长表现进行分析表明，目前生长最好的种源都来自马尾松互类产区，大多属南、中带种源区，其中桐棉种源以其生长季长和枝轮多的特性，在龙泉生长遥遥领先，且４年来未发现冻害；但在浙北幼年冻害严重，保存率不高，生长居中下水平。根据新复极差ＬＳＲ检验，在Ⅰ２产区的龙泉仅相棉、信宜、古蓬、建阳和吉安５个种源生长突出，其余种源间差异不显著；在Ⅱ类产区的桐庐，来自Ⅰ类产区的种源大多表现出明显生长优势，与其它种源高生长差异极显著。建阳、武平、吉安、蒲江等种源在龙泉的生长名次随年龄而上升，说明有较强的适应性。
The analysis of the growth performance of 27 primary provenances, young stands (4-year-old and 6-year-old) in Longquan, Zhejiang Province and Tonglu, Zhejiang Province showed that the best provenances at present are from the Masson Pine Mutual Production Area , Most of which belonged to the southern and middle belt provenance areas. Among them, the provenance of Tongmian was far ahead of Longquan in terms of its growth season and branches, and no frost damage was found in 4 years. However, Not high, middle and lower levels of growth. According to the new complex difference LSR test, the five provenances of Longquan only cotton, Xinyi, Gupeng, Jianyang and Ji’an were prominent in Ⅰ2 producing area, while the other provenances did not show significant difference. In Ⅱ producing area, Tonglu , Most of the provenances from Ⅰ producing areas showed obvious growth superiority, and the differences from other provenances were extremely significant. Jiangyang, Wuping, Ji’an, Pujiang and other provenances in Longquan growth rankings rise with age, indicating a strong adaptability.