天津农业科学2026，Vol.32Issue(7)：7-11,5.DOI:10.3969/j.issn.1006-6500.2026.07.002
磷处理对谷子根际微生物及根系形态的影响
Effects of Phosphorus Treatments on Rhizosphere Microorganisms and Root Morphology of Millet
摘要
Abstract
To clarify the effects of low phosphorus stress on rhizosphere microorganisms and root morphology of millet,three millet va-rieties('Jigu13','Jingu21','Yugu18')were used with low phosphorus(P0)and normal phosphorus(PN)treatments under field condi-tions.The quantities of rhizosphere bacteria,fungi,actinomycetes and root morphological indices were determined at booting stage.The results showed that low phosphorus reduced rhizosphere microorganisms and inhibited root development.'Jingu21'exhibited smaller decreases in microorganisms and maintained higher total root length with stronger low-phosphorus tolerance.'Jigu13'increased root diameter.'Yugu18'showed weaker adaptability.In conclusion,rhizosphere microorganisms and root morphology of millet present a synergistic response pattern to low phosphorus stress,and the low-phosphorus tolerance and adaptation strategies of varieties with dif-ferent phosphorus response characteristics show significant genetic differentiation.'Jingu21'has outstanding comprehensive low-phos-phorus tolerance,which can be used as an excellent germplasm for millet cultivation and low-phosphorus-tolerant breeding in low-phosphorus dry farming areas.关键词
谷子/低磷胁迫/根际微生物/根系形态/磷响应特性Key words
millet/low phosphorus stress/rhizosphere microorganisms/root morphology/phosphorus response characteristics分类
农业科技引用本文复制引用
于金辰,张念辉,刘一涵,王金月,郭浩杰,孟超敏..磷处理对谷子根际微生物及根系形态的影响[J].天津农业科学,2026,32(7):7-11,5.基金项目
河南省科技攻关项目(242102110287) （242102110287）
河南省产业科技特派员项目(2018HNCYTPY01) （2018HNCYTPY01）
