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中国农学通报 ›› 2016, Vol. 32 ›› Issue (34): 15-20.doi: 10.11924/j.issn.1000-6850.casb16060041

• 林学 园艺 园林 • 上一篇    下一篇

乌桕和无患子容器苗育苗密度与苗木生长和质量的关系

郑 坚1,马晓华1,廖 亮2,陈秋夏1,钱仁卷1,张旭乐1   

  1. (1浙江省亚热带作物研究所,浙江温州 325005;2浙江省乐清市林业局,浙江乐清 325600)
  • 收稿日期:2016-06-07 修回日期:2016-11-21 接受日期:2016-07-15 出版日期:2016-12-15 发布日期:2016-12-15
  • 通讯作者: 陈秋夏
  • 基金资助:
    温州市森林生态重点科技创新团队(C20150002)。

The Relationship Between Cultivation Density and Growth and Quality of Sapium sebiferum and Sapindus Container-grown Seedling

Zheng Jian1, Ma Xiaohua1, Liao Liang2, Chen Qiuxia1, Qian Renjuan1, Zhang Xule1   

  1. (1Institute of Subtropical Crops of Zhejiang Province, Wenzhou Zhejiang 325005;2Yueqing Forestry Bureau of Zhejiang, Yueqing Zhejiang 325600)
  • Received:2016-06-07 Revised:2016-11-21 Accepted:2016-07-15 Online:2016-12-15 Published:2016-12-15

摘要: 为提高乌桕与无患子的苗木品质,研究育苗密度对乌桕与无患子的苗木生长形态变化及苗木品质的影响。试验以当年生乌桕与无患子幼苗为试验材料,设不同育苗密度5个处理,测定分析不同育苗密度下乌桕与无患子幼苗的生长进程以及干物质积累、叶片数、主根长形态指标。结果表明:不同育苗密度下,乌桕与无患子的生长进程差异十分显著;且无患子和乌桕的苗高随着密度的变大逐渐增加,但是当苗高增加到一定程度时,苗高并未随之增加;乌桕、无患子的单株、茎生物量表现为随着育苗密度的变大而逐渐增加。且乌桕与无患子的合格苗所占的百分率随其苗木密度的变大而降低,与之呈负相关关系。综合苗高、地径、单株生物量、茎生物量、幼苗形态因子分化参数、合格苗率、单位面积合格苗数等指标,无患子以育苗密度为280~342株/m2、乌桕以育苗密度为337~412株/m2时,其生长形态和植株品质比较协调,植株苗木品级合格率较高。

关键词: ‘玉铃铛’, ‘玉铃铛’, ‘冬枣’, 产量, 品质

Abstract: In order to improve the seedling quality of Sapium sebiferum and Sapindus, the authors explored the influence of cultivation density on morphology change and seedling quality. Five cultivation density treatments were set to study the growth process and dry matter accumulation, leaf number and main root length of Sapium sebiferum and Sapindus. The results showed that under different cultivation densities, the differences in growth process of Sapium sebiferum and Sapindus were significant. The seedling height of Sapium sebiferum and Sapindus seedlings increased gradually with the increase of cultivation density, while the seedling height stopped growing when cultivation density reached a certain degree. The biomass of single plant and stem increased with the increase of cultivation density, and the percentage of qualified seedling of Sapium sebiferum and Sapindus decreased with the increase of cultivation density, which showed a negative correlation with cultivation density. Comprehensive analysis of seedling height, ground diameter, single seedling biomass, stem biomass, seedling morphological factor differentiation parameters, percentage of qualified seedling, qualified seedling number in unite area and other indicators indicated that when the cultivation density of Sapindus was 280-342 plant/m2 and that of Sapium sebiferum was 337-412 plant/m2, the percentage of qualified seedling grade was higher and growth morphology and plant quality were more coordinated.