| Autor: |
Na JIN, Hui XUE, Wen-jing LI, Xue-yan WANG, Qian LIU, Shu-sen LIU, Pei LIU, Jian-long ZHAO, Heng JIAN |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Journal of Integrative Agriculture, Vol 16, Iss 6, Pp 1347-1357 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2095-3119 |
| DOI: |
10.1016/S2095-3119(16)61553-8 |
| Popis: |
Streptomyces rubrogriseus HDZ-9-47, isolated from eggs of Meloidogyne spp., was evaluated as a potential biocontrol agent of Meloidogyne incognita under in vitro and protective field. Microscopic observations showed that HDZ-9-47 parasitized eggs of M. incognita within 7 days. In vitro, the culture filtrate of HDZ-9-47 caused 97.0% mortality of second-stage juveniles (J2s) of M. incognita and inhibited more than 50% egg hatching. In the field, compared with the control, the root-knot index and J2s density in the treatment of drench the broth contained 1012 HDZ-9-47 spores were respectively reduced by 51.1 and 80.7% at 90 days post transplantation, which were better than that in other application doses and methods. In addition, reduction rates of root-knot index and J2s density of the treatment of combined application of HDZ-9-47 with biofumigation was 87.1 and 91.0%, respectively, better than either of HDZ-9-47 or biofumigation used alone or fosthiazate treatment. And tomato yield also increased by 16.1%. Together, our results suggest that HDZ-9-47 could be an effective biocontrol agent of M. incognita, and that application of HDZ-9-47 combined with cabbage residue biofumigation was a promising and sustainable option for M. incognita control. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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