|Table of Contents|

Effects of Growing Medium Compound With Bacillus amyloliquefaciens TR2 on the Growth of Watermelon Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年06
Page:
12-18
Research Field:
Publishing date:

Info

Title:
Effects of Growing Medium Compound With Bacillus amyloliquefaciens TR2 on the Growth of Watermelon Seedlings
Author(s):
LI ChenyuJIA ShaoleiHE YunhongGAO TantanREN ZhengguangZHAO Xiaoyan
(College of Bioscience and Resource Environment,Beijing University of Agriculture/Key Laboratory for Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs,Beijing 102206)
Keywords:
Bacillus biocontrolgrowing mediawatermelongrowth
PACS:
-
DOI:
10.11937/bfyy.20223046
Abstract:
Taking Bacillus amyloliquefaciens TR2,different seedling substrates and watermelon seedlings as experimental materials,the effects of 9 different formula substrates on the colonization of Bacillus amyloliquefaciens TR2 over time,and the effects of TR2 compound on the growth indexes of watermelon seedlings under pot conditions were studied by using dilution coated plate method and pot experiment,in order to screen out the substrate formula of low use of grass carbon,stable colonization of TR2 and healthy growth of watermelon seedlings.The results showed that Bacillus amyloliticus TR2 could colonize in all the tested substrates,and the average colonization amount was about 5×106 CFU?cm-3 in 30 days,and the highest colonization amount was 8.1×106 CFU?cm-3 in B6 substrate.The growth of watermelon seedlings in the substrate containing vermicompost (B2,B6,B7,B8) was better than that without vermicompost in terms of plant height and fresh quality,and the substrate containing coconut bran (B8) had the best performance in terms of root length.The plant height and fresh weight of watermelon seedlings were significantly increased by growing media mixed with Bacillus amyloliticus TR2 compared with that without biocontrol bacteria,and the promotion effect of growing media B2 mixed with TR2 on watermelon seedlings was the most obvious,44.2% higher than that without biocontrol bacteria.The addition of biocontrol bacteria in the substrate had no significant effect on root length and fresh quality of watermelon seedlings.

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Last Update: 2023-04-12