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轻度遮荫对紫羊茅生长和叶绿素含量的影响

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研究了20%,40%轻度遮荫处理对紫羊茅叶片叶绿素含量和生长的影响.结果表明:遮荫60d,随光强的减弱,叶片中叶绿素a、叶绿素b和总叶绿素含量显著增加,20%和40%遮荫处理叶绿素总量分别比自然光照增加了8.80%和10.87%.紫羊茅分蘖能力和各部分植物量增量明显提高,20%和40%遮荫处理总干重增量分别比自然光照提高15.46%和35.00%.随遮荫强度增加,植株高度增加.遮荫能显著提高植株的含水量,40%遮荫处理植株含水量达到76.39%.
Effect of lightly shading on chlorophyll content and growth of Festuca rubra
The effect of lightly shading(20% and 40%shading)on chlorophyll content and growth of Festuca rubra was studied. The results showed that the content of chlorophyll a chlorophyll b and total chlorophyll were increased significantly after 60 days shading treatment and total chlorophyll content in 20% and 40% shading treatments were increased by 8. 80% and 10. 87% respectively. The ability of tillering and the biomass were also increased along with the shading intensity, and the total dry matter per plant in 20% and 40% shading treatments were increased by 15. 46% and 35.00% respectively. Moreover, the shading treatment increased the plant height and plant water content(76.39% in 40% shading treatment).

Festuca rubrashadingchlorophyll contentgrowth

赵玉红、张涪平

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西藏农牧学院,西藏,林芝,860000

紫羊茅 遮荫 叶绿素含量 生长

国家科技支撑计划重点项目西藏农牧学院青年基金

2007BAC06B05

2009

草原与草坪
中国草学会 甘肃农业大学

草原与草坪

CSTPCD
影响因子:0.686
ISSN:1009-5500
年,卷(期):2009.(6)
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