摘要
箭胡毛杨为杨树新培育品种,在其良种繁育中,采穗圃建设是重要环节。通过对4种不同采穗母株的作业方式和4种不同定植密度处理与母株产穗量的分析,探明了箭胡毛杨良种采穗圃营建的主要技术问题。结果表明,5、10、15、20 cm 4种母株截干作业对穗条的生产量影响差异性显者;30 cm × 40 cm、 40 cm × 50 cm、 40 cm × 60 cm、 50 cm × 60 cm 4种密度处理对有效穗条的生产量影响差异性显著; 5 cm与10 cm截干作业处理之间对有效穗条产量影响差异性不显著;5、10、15cm处理之间对总穗条产量影响差异性不显著; 40cm×50cm、40cm×60cm、 50cm×60 cm密度处理之间对有效稳条产量影响差异性不显著;采穗母株作业方式与定植密度间存在互作效应; 40 cm× 50 cm株行距配合 5~ 10 cm截干作业方式可提高苗圃单位面积的穗条产量。
The paper through the trial involved in the treatments of 4 operations of cutting off stemp young stock plants above ground and of 4 planting density in Populus Jianhumao scion plucking nursery, reveals the relationship between the cutting yield and the treatments. The results show that there is a significant variety to the cutting yield among the operations of 5cm, 10 cm, 15 cm and 20 cm, and to the available cuttings among the planting density of 30 cm×40 cm, 40 cm ×50 cm, 40 cm×60 cm and 50 cm×60 cm; the variety to the available cuttings between 5 cm and 10 cm and to the total cuttings among 40 cm ×50 cm、 40 cm×60 cm. 50 cm×60 cm is not significant in different treatments; there is a reciprocal effect between the operation and the density. It is suggested that the planting density of 40 cm ×50 cm with the operation of 5 cm to 10 cm is the best method to produce the maximum yield of the poplar cuttings in the scion plucking nursery.
出处
《甘肃农业大学学报》
CAS
CSCD
2000年第1期19-23,共5页
Journal of Gansu Agricultural University
关键词
箭胡毛杨
采穗圃
作业方式
定植密度
穗条产量
× Populus Jianhumao
scion plucking nursery
operation of cutting off stem
planting density
cutting yield