| 遮荫对紫花苜蓿生长发育和产草量影响的初探 |
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| 引用本文： | 王国良,贾春林,周玉雷,杨秋玲,盛亦兵,崔芳梅.遮荫对紫花苜蓿生长发育和产草量影响的初探[J].草业科学,2010,27(10):69-73. |
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| 作者姓名： | 王国良 贾春林 周玉雷 杨秋玲 盛亦兵 崔芳梅 |
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| 作者单位： | 山东省农业可持续发展研究所,山东,济南,250100;仲恺农业工程学院园艺园林学院,广东,广州,510225 |
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| 基金项目： | 国家科技支撑计划(2008BADB3B05); 公益性行业(农业)科研专项经费项目(nyhyzx07-022); 山东省农业良种工程牧草项目(2008LZ019-01) |
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| 摘 要： | 以3个紫花苜蓿(Medicago sativa)品种为材料,通过田间遮荫网控制光照强度,研究了紫花苜蓿在不同遮荫强度下(对照、遮荫50%、遮荫80%)的生长情况,分析了紫花苜蓿的生长发育和产草量指标。结果表明,遮荫处理对紫花苜蓿叶绿素a和b含量影响不显著,叶绿素a/b值随遮荫强度的增大而降低;苜蓿株高、茎叶比、产草量等指标随遮荫强度的增大而降低,全年产草量对照分别是遮荫50%和80%的3倍和8倍;第1茬产草量占总产草量的百分比随遮荫强度的增大而增大。在遮荫条件下种植紫花苜蓿,建议遮荫强度不要超过50%,产量以第1茬为主,减少刈割次数。
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| 关 键 词： | 紫花苜蓿 遮荫 生长发育 产草量 |
Preliminary study on effect of shading on the growth and yield of Medicago sativa |
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| WANG Guo-liang,JIA Chun-lin,ZHOU Yu-lei,YANG Qiu-ling,SHENG Yi-bing,CUI Fang-mei.Preliminary study on effect of shading on the growth and yield of Medicago sativa[J].Pratacultural Science,2010,27(10):69-73. |
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| Authors: | WANG Guo-liang JIA Chun-lin ZHOU Yu-lei YANG Qiu-ling SHENG Yi-bing CUI Fang-mei |
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| Institution: | WANG Guo-liang,JIA Chun-lin,ZHOU Yu-lei,YANG Qiu-ling,SHENG Yi-bing,CUI Fang-mei(1.Sh,ong Institute of Agricultural Sustainable Development,Sh,ong Jinan 250100,China,2.College of Horticulture , L,scape Architecture,Zhongkai University of Agriculture , Engineering,Guangdong Guangzhou 510225,China) |
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| Abstract: | An experiment was carried out using three Medicago sativa varieties by controlling light intensity with shading net to study the growth in different shading treatments(the control,shaded 50% and shaded 80%),and to analyze indices of growth and yield.The results showed that the content of chlorophyll a and b was not affected significantly by shading treatments,but chlorophyll a/b decreased with the increased shading intensity.The plant height,stem/leaves ratio,yield of alfalfa decreased with the increased sh... |
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| Keywords: | Medicago sativa shading growth yield |
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