Effects of soil sterilization on growth of Angelica sinensis plant and soil microbial populations in a continuous mono-cropping soil.
Effects of soil sterilization on growth of Angelica sinensis plant and soil microbial populations in a continuous mono-cropping soil.
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DOI：
10.17957/ijab/15.0118
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发表时间：
2016-04
影响因子：
--
通讯作者：
Xin-hui Zhang;D. Lang;E. Zhang
中科院分区：
文献类型：
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作者：
Xin-hui Zhang;D. Lang;E. Zhang
当归（当归）莳萝（伞形科）是一种多年生草本植物，在中药中被广泛应用。土壤病已成为制约苜蓿生长的主要因素之一。中华栽培通过盆栽试验研究了生物性在A.中华土壤病盆栽试验包括三个处理：（i）对照，以春小麦林的盆栽土壤为代表;（ii）AA，以A.（iii）S-AA，以盆栽土壤为代表，用121 ℃蒸汽灭菌4 h，从A.中华林。结果表明，灭菌处理的植株株高、地上部和根系干重、根系产量和品质、叶片SOD和POD活性均显著高于未灭菌处理，而叶片CAT活性和MDA含量均显著降低，说明灭菌处理提高了植株健壮性，提高了活性氧清除酶活性。结果还表明，土壤灭菌可以改变土壤中可培养微生物种群的数量和细菌功能群的物种多样性。灭菌土壤种植的根际土壤Shannon-Wiener指数高于非灭菌土壤种植。这表明生物学因素在A.重茬土壤的土壤病害和灭菌可改变土壤微生物群落的组成和结构，从而进一步促进植物生长，缓解土壤中的A.中华土壤病2016年12月28日-Friends Science Publishers
Angelica sinensis (Oliv.) Diels (family Apiaceae) is a perennial herb that has been widely used in Traditional Chinese Medicine. The soil sickness has become one of the major constrains in A. sinensis cultivation. A pot experiment was done to evaluate the role of biological nature in A. sinensis soil sickness. The pot experiment include three treatments (i) contol, which represent as the soil in pot taken from spring wheat stands, (ii) AA, which represent as the soil in pot taken from A. sinensis stands, (iii) S-AA, which represent as the soil in pot was sterilized by steam at 121°C for 4 h taken from A. sinensis stands. Results showed that the plant height, dry weight of aboveground part and roots, root yield and quality, and the activities of SOD and POD in leaves were significantly higher in sterilized replant soil than in non-sterilized replant soil treatment, while the activity of CAT and content of MDA in leaves were declined, which indicated that soil sterilization improved plant haleness and increased the activities of active oxygen scavenging enzymes. The results also demonstrated that soil sterilization can change the number of culturable microbial populations and the species diversity of bacterial functional group. Higher Shannon-Wiener index was found in rhizosphere soils under sterilized soil cropping than that under non-sterilized soil cropping. This suggests that the biological factor played a causal role in the development of A. sinensis soil sickness and sterilization of continuous cropping soil could change the composition and structure of soil microbial community, which further promote plant growth and alleviate A. sinensis soil sickness. © 2016 Friends Science Publishers