摘要
主枝长度采用-x+3δ的选择标准,相应地径采用x-+2δ的选择标准,确定江坑苗圃雷公藤超级苗的最低主枝长度为46 cm,最低地径为0.37 cm,共选出超级苗79株,平均主枝长度为78.72 cm,平均胸径为0.53 cm;红地苗圃雷公藤超级苗的最低长度为31 cm,最低地径为0.34 cm,共选出超级苗74株,平均主枝长度为48.55 cm,平均胸径为0.50 cm;长兴苗圃雷公藤超级苗的最低主枝长度为25 cm,最低地径为0.33 cm,共选出超级苗53株,平均主枝长度为42.06 cm,平均胸径为0.46 cm。
With -↑x ＋ 38 as the selection criteria of main branch length, and -↑x ＋ 28 as the selection criteria of the corresponding ground diameter, the minimum length of super seedling of Tripterygium wilfordii in Jiang Keng nursery was 46 cm, and the minimum ground diameter was 0.37 cm. There was 79 super seedlings selected in Jiang Keng nursery, whose average main branch length was 78.72 cm and the average ground diameter was 0.53 cm. The minimum length of super seedling of T. wilfordii in Hong Di nursery was 31 cm, and the minimum ground diameter was 0.34 cm. There was 74 super seedlings selected in Hong Di nursery, whose average main branch length was 48.55 cm and the average ground diameter was 0.50 cm. The minimum length of super seedling of T. wilfordii in Chang Xing nursery was 25 cm, and the minimum ground diameter was 0.33 cm. There was 53 super seedlings selected in Chang Xing nursery, whose average main branch length was 42.06 cm and the average ground diameter was 0.46 cm.
出处
《亚热带农业研究》
2008年第3期188-191,共4页
Subtropical Agriculture Research
基金
福建省科技重大专项资助项目(2006NZ0001)
教育部博士学科点专项基金资助(20061038901)
关键词
雷公藤
超级苗
主枝长度
地径
Tripterygium wilfordii
super seedling
main branch length
ground diameter
