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当前位置: 首页 > 文章 > 连续3年UV-B辐射对10个割手密无性系株高、茎径的影响 农业环境科学学报 2007,0 (S2) 156-161
Position: Home > Articles > Effects of Enhanced UV-B Radiation on Plant Height and Stem Diameter of Wild Sugarcane (Saccharum spontaneum L.) Clones for Three Consecutive Years Journal of Agro-Environment Science 2007,0 (S2) 156-161

连续3年UV-B辐射对10个割手密无性系株高、茎径的影响

作  者：
祖艳群;李元;秦丽;何永美;王海云;李富生
单  位：
云南农业大学资源与环境学院;云南农业大学农学与生物技术学院
关键词：
UV-B辐射;割手密;株高;茎径;响应差异
摘  要：
研究了大田栽培和自然光条件下,连续3年模拟紫外辐射(UV-B,280~315 nm)增加对10个割手密无性系伸长期株高和茎径的影响。结果表明:(1)割手密耐性无性系株高和茎径对UV-B辐射响应具有明显的差异;敏感无性系的株高和茎径显著或极显著的下降。(2)无性系株高和茎径对UV-B辐射的响应具有明显的年际、生育期之间的差异,在伸长初期和中期最敏感。(3)割手密无性系90-15的耐性最强,无性系II91-93最敏感。
译  名：
Effects of Enhanced UV-B Radiation on Plant Height and Stem Diameter of Wild Sugarcane (Saccharum spontaneum L.) Clones for Three Consecutive Years
作  者：
ZU Yan-qun1,LI Yuan1,QIN Li1,HE Yong-mei1,WANG Hai-yun1,LI Fu-sheng2 (1.College of Resources and Environment,Yunnan Agricultural University,Kunming 650201,China;2.College of Agronomy and Biotechnology,Yunnan Agricultural University,Kunming 650201,China)
关键词：
UV-B radiation;wild Sugarcane(Saccharum spontaneum L.);plant height;stem diameter;intraspecific differences
摘  要：
The effects of enhanced UV-B radiation on plant height and stem diameter of 10 wild sugarcane(Saccharum spontaneum L.) clones for 3 consecutive years under field condition was investigated.The results showed that there were intraspecific differences in plant height and stem diameter of tolerant clones,and plant height and stem diameter of sensitive clones decreased significantly.Intraspecific differences in plant height and stem diameter of clones varied with years and growth stages.The clones were more sensitive in their first-middle elongating stages than the last stage.Clone 90-15 was the most tolerant and clone II91-93 was the most sensitive.

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