几种微生物菌剂对三七生长发育及品质的影响
Effects of several microbial agents on growth, development and quality of Panax notoginseng
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摘要: 通过田间小区试验, 研究枯草芽孢杆菌(A) 、 哈茨木霉(B) 、 德根贝(C 1 、 C 2 、 C 3 、 C 4 、 C 5 )等微生物菌剂对 3 年生三七植株的病害发生情况、 生长发育、 地下部分干物质产量和三七根部不同部位有效成分含量的影响。 结果表明, 3 种微生物菌剂对三七植株的病害防治、 生长发育、 总干重、 总皂苷含量均有一定的作用。 处理 C 1 的植株发病率为 13.25%, 防治效果最佳; 各生物菌剂对三七病害防治作用效果大小依次为: C 1 > A > C 2 > C 4 > C 5 > B > C 3 > CK 2 > CK 1 。 处理 C 1 对三七的株高、 茎粗和剪口粗影响最大, 比CK 1 分别提高 41.11%、 44.44% 和 33.96%。 处理 C 4 对三七的叶长、 叶宽影响最大, 比 CK 1 分别提高 37.13%、24.27%。 各生物菌剂处理对三七地下部分干重的影响效果大小依次为: C 1 > C 3 > C 4 > B > A > CK 2 > C 2 >C 5 > CK 1 。 处理 C 3 的剪口和须根的总皂苷含量分别比 CK 1 提高 69.15%、 248.24%, 分别比 CK 2 提高 87.34%、378.71%; 处理 C 1 主根和剪口的总皂苷含量分别比 CK 1 提高 59.61% 和 36.78%, 分别比 CK 2 提高 205.01% 和51.49%。 综合来看, 处理 C 1 (97 mL/667m 2 )对三七的病害防治、 生长发育、 产量及质量等方面均有显著的促进作用, 可在生产中推广应用。Abstract: A field plot experiment was conducted to evaluate the effects of microbial agents including Bacillus subtilis, Trichoderma harzianum and Bacillus amyloliquefaciensFZB42 on disease occurrence, growth, root dry weight (DW)and effective component of different parts of three-year old Panax notoginseng. The results showed that 3 kinds of microbial agents all had effects on disease control, growth, total DW and total saponins of P. notoginseng. The ratio of disease occurrence was 13.25% of C 1 with good control effect and the order of control effect was C 1 > A > C 2 > C 4 > C 5 > B > C 3 > CK 2 > CK 1 . C 1 had the most impact on plant height, stem diameter and snip coarse, made them rise by 41.11%, 44.44% and 33.96% respectively compared to CK 1 ; C 4 had the most impact on length and width of leaf, made them rise by 37.13% and 24.27% respectively compared to CK 1 . The order of control effect on root DW was C 1 > C 3 > C 4 > B > A > CK 2 > C 2 > C 5 > CK 1 . The total saponins of snip and fibrous in C 3 rose by 69.15% and 248.24% compared to CK 1 , while by 87.34% and 378.71% compared to CK 2 , the total saponins of taproots and snip in C 1 rose by 59.61% and 36.78% compared to CK 1 , while by 205.01% and 51.49% compared to CK 2 . The results indicated that, C 1 (97 mL/667m 2 )treat ment played a significant promotion role for both disease prevention and control, growth, yield and quality.