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当前位置: 首页 > 文章 > 根瘤菌对花榈木2年生苗木生长及生理生化特性的影响 西部林业科学 2014 (2) 102-107
Position: Home > Articles > Effect of Rhizobia on Growth and Physiological-biochemical Character of Biennial Ormosia henryi Seedlings Journal of West China Forestry Science 2014 (2) 102-107

根瘤菌对花榈木2年生苗木生长及生理生化特性的影响

作  者：
段如雁;韦小丽;简才源;张怡;王樱琳;冯艳
单  位：
贵州大学林学院
关键词：
根瘤菌;花榈木;苗木;生长;生理生化特性
摘  要：
对2年生花榈木容器苗进行随机取样调查,测定有根瘤和无根瘤花榈木的生长及生理生化指标,分析根瘤菌对花榈木苗木生长及生理的影响。结果表明,根瘤菌显著地促进了2年生花榈木的生长,有根瘤的花榈木与无根瘤的相比,其苗高、地径、总根长、总根表面积、总根体积分别增长8.5%、17.6%、48.0%、45.6%和42.4%,其总生物量是无根瘤苗木的1.38倍。根瘤菌对花榈木苗木根生长的影响大于茎叶生长。与无根瘤的花榈木苗木相比,有根瘤的花榈木苗木光合速率增加,蒸腾速率降低,水分利用效率和光能利用率明显提高,其叶绿素荧光参数在一定程度上均有所提高。根瘤菌对花榈木的叶绿素含量、硝态氮含量、硝酸还原酶活性、根系活力等生化指标影响极显著,其值分别比无根瘤的花榈木增大42.9%、6.2%、39.2%和48.7%。
译  名：
Effect of Rhizobia on Growth and Physiological-biochemical Character of Biennial Ormosia henryi Seedlings
作  者：
DUAN Ru-yan;WEI Xiao-li;JIAN Cai-yuan;ZHANG Yi;WANG Ying-lin;FENG Yan;College of Forestry,Guizhou University;
关键词：
Rhizobia;;Ormosia henryi seedlings;;growth;;physiological-biochemical character
摘  要：
In order to investigate the effect of rhizobia on the growth physiology of Ormosia henryi seedlings,the growth indices and some physiological-biochemical indices of seedlings with root nodules and without root nodules were surveyed by randomly sampling of biennial Ormosia henryi container seedlings. The results showed that,compared with biennial Ormosia henryi container seedlings without nodules,rhizobia significantly facilitated the growth of container seedlings in terms of the height,ground diameter,total root length,total root surface area,total root valume,and increased amount reaches to 8. 5 %,17. 6 %,50 %,45. 6 % and 42. 4 % respectively. The gross biomass of seedlings with root nodules was 1. 38 times of those without root nodules. There is greater effect of nodules on root growth than on leaf and stem. Compared with Ormosia henryi seedlings without nodules,the photosynthetic rate of seedlings with nodules increased,transpiration rate decreased,water use efficiency and energy utilization rate increased significantly,and chlorophyll fluorescence parameters improved. Compared with seedlings without nodules, the effect of Rhizobia on chlorophyll content,nitrate nitrogen content,nitrate reductase activity,root activity and other biochemical indexes were distinctly increased 42. 9 %,6. 2 %,39. 2 % and 48. 7 % respectively.

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