| Growth\|promoting effect of Trichoderma atroviride TraT2A on five plant species |
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| DOI：10.7606/j.issn.1000-7601.2023.05.27 |
| Key Words: Trichoderma atroviride protein extract TraT2A growth\|promoting effect crops |
| Author Name | Affiliation | | ZHANG Guoyin | College of Plant Protection, Gansu Agricultural University, Gansu Provincial Engineering Laboratory of Biological Control of Crop Diseases and Insect Pests, Lanzhou, Gansu 730070, China | | LIANG Qiaolan | College of Plant Protection, Gansu Agricultural University, Gansu Provincial Engineering Laboratory of Biological Control of Crop Diseases and Insect Pests, Lanzhou, Gansu 730070, China | | WEI Liexin | College of Plant Protection, Gansu Agricultural University, Gansu Provincial Engineering Laboratory of Biological Control of Crop Diseases and Insect Pests, Lanzhou, Gansu 730070, China |
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| Abstract: |
| To determine the growth\|promoting effects of TraT2A (a protein extract from the fermentation broth of Trichoderma atroviride T2 strain) on five crops of wheat, maize, cowpea, pepper, and cucumber, the effects of four different concentrations of TraT2A on seed germination, seedling morphological changes, and physiological characteristics of the five crops were determined by seed germination and indoor pot tests. The results showed that four different concentrations of TraT2A promoted the growth of the five crops with a growth rate of up to 104.69% and significantly increased the chlorophyll content and root activity. The growth promotion rate reached 24.95%, and reduce the malondialdehyde content, the growth promotion rate reached 36.69%, especially 10 mg·mL-1 TraT2A had the best growth\|promoting effect on the five crops. The growth promotion effects were different among different crops. The maximum growth promotion rate for cucumber dry weight was 104.69%, followed by 91.86% for cucumber vigor index, the third was 70.17% for pepper hypocotyl, and 17.65%~46.46% for germination rate, germination index, radicle, fresh mass, dry weight, chlorophyll content and root vigor of other crops. The maximum reduction of malondialdehyde content in wheat was 36.69% after 10 mg·mL-1 TraT2A treatment in five crops. Thus, after four different concentrations of TraT2A treated five crops, 10 mg·mL-1 TraT2A had the best pro\|growth effect on cucumber, followed by pepper and wheat. |
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