Effects of Streptomyces JD211 on the seedling growth of rice and soil culturable functional microbial
Year: 2014
Type: article
Abstract: Soil microorganisms and their metabolites may affect crop growth. Spring No.1 Rice was used as tested rice seeds, and Streptomyces JD211 and its solid agents are used as tested strains. Through platter experiment we studied the effects of Streptomyces JD211 on the seedling quality and microbial flora. Results showed that 10 g/kg agents played a very significant role in promoting the growth of rice seedlings, and greatly improved the various physiological conditions of rice seedlings, including the seedling plants height, leaf age, pseudo-stem width, leaf width, total number of roots, white roots,root length, main root length, fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%. Chlorophyll, root activity and soluble sugar content increased by 50.00%, 19.07%, 29.75%, respectively. After Streptomyces JD211 was applied, the number of soil bacteria and fungi reduced, while the number of actinomycetes increased, and the number of nitrifying bacteria and bacterial nitrification bacteria declined, the number of aerobic cellulose-decomposing bacteria, silicate bacteria and organic phosphorus bacteria improved. Moreover, changes of the function of soil microflora accelerated the soil nutrient cycling process and enhanced the rice nutrient absorption capacity, thereby promoted the growth of rice.
Source: Guangdong nongye kexue
Author: Shiqian Wang
Institution: Jiangxi Agricultural University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $726
OpenAlex ID: W2387171374