| Effects of AM fungi on the growth and leaf protective enzymes of tobacco under Kdeficiency |
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| DOI：10.7606/j.issn.1000-7601.2003.01.11 |
| Key Words: Kstress AM fungi tobacco growth amount protective enzymes |
| Author Name | Affiliation | | LI Ying-peng | College of Life Sciences,Northwest Sci-Tech University of Agriculture and Forestry, Yangling,Shaanxi 712100,China | | SUN Wei | Shaanxi Tobacco Institute,Xi’an 710002,China | | ZHAO Li-li | College of Life Sciences,Northwest Sci-Tech University of Agriculture and Forestry, Yangling,Shaanxi 712100,China | | HE Xue-li | College of Life Sciences,Northwest Sci-Tech University of Agriculture and Forestry, Yangling,Shaanxi 712100,China |
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| Abstract: |
| Using pot experiment,the effects of AM fungi on the growth and le af protective enzymes of tobacco during vigorous growth and mature period under K deficiency were studied. The results showed that under the condition of unino culation, the growth amount, the biomass output the contents of chlorophyll and soluble protein and the activity of protective enzymes of tobacco were significantly lowered, and the plants became unhealthy and prematurely senescent under K deficiency. But the inoculation of AM fungi apparently relieved the metabolic disorders, improved the growth of tobacco, and increased the contents of chlorophyll and soluble protein and t he activity of protective enzymes in the plants. The mixture with equal weight of Glomus mosseae <、i> and Glomus caledonium produced the best effect among all the inoculation treatments. These results proved that inocu lating AM fungi apparently decreased harms from K fertilizer deficiency and incr ease the activity of protective enzymes to enhance the ability of protective sy stem of the plants, thus promoting the growth of tobacco. |
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