Fusarium root rot disease in Indian mulberry (Morinda officinalis How.) (FRRBK), caused by Fusarium proliferatum (FP), is widespread and responsible for serious economic losses in Viet Nam. The efficacy of a new bio-product named MICROTECH-1(NL) is compared with other commercial products for suppression of FP under in vitro, pot, nursery as well as in the field conditions. In in vitro antagonistic assay, MICROTECH-1(NL) significantly inhibited the mycelial growth of FP (72.38%). Under pot conditions, the efficacy of all the bio-products was significantly higher when applied prior to pathogen inoculation. The disease severity of treatments with double application of MICROTECH-1(NL) (applied both in the nursery and in the pot soil) was only 15.56%, significantly lower than control (80%). Thus, the application of MICROTECH-1(NL) significantly reduced the incidence of FP and markedly increased the number of plant beneficial bacteria and actinobacteria in rhizoplane of M. officinalis compared to untreated control. In the field conditions, double application of MICROTECH-1(NL) (both in the nursery and in the field soils) significantly decreased disease severity in comparison to single application in nursery or field. The most effective treatment was double application of MICROTECH-1(NL), which significantly reduced the disease severity and FP population in roots of M. officinalis and increased the population of plant beneficial microbes.

中文翻译：

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印度桑（镰刀菌根腐病的生物防治巴戟天与越南农业重要微生物的财团如何。）

印度桑（Fusarium proliferatum（FP））引起的印度桑树（Morinda officinalis How。）（FRRBK）镰刀菌根腐病很普遍，在越南造成严重的经济损失。在体外，盆栽，苗圃以及野外条件下，将一种名为MICROTECH-1（NL）的新生物产品与其他商业产品的抑制FP的功效进行了比较。在体外拮抗试验中，MICROTECH-1（NL）显着抑制了FP的菌丝生长（72.38％）。在盆栽条件下，在病原体接种之前应用所有生物产品的功效都明显更高。两次施用MICROTECH-1（NL）（在苗圃和盆栽土壤中均施用）治疗的疾病严重度仅为15.56％，明显低于对照（80％）。从而，与未经处理的对照相比，MICROTECH-1（NL）的应用显着降低了山茱M根际平面中FP的发生率，并显着增加了植物有益细菌和放线菌的数量。在田间条件下，与在苗圃或田间单次施用相比，两次施用MICROTECH-1（NL）（在苗圃和田间土壤中）显着降低了疾病严重程度。最有效的治疗方法是两次使用MICROTECH-1（NL），这大大降低了厚朴叶冠心病的病害严重程度和FP种群，并增加了植物有益微生物的种群。与在苗圃或田间单次施用相比，MICROTECH-1（NL）的两次施用（在苗圃和田间土壤中）均显着降低了疾病严重程度。最有效的治疗方法是两次使用MICROTECH-1（NL），这大大降低了厚朴叶冠心病的病害严重程度和FP种群，并增加了植物有益微生物的种群。与在苗圃或田间单次施用相比，MICROTECH-1（NL）的两次施用（在苗圃和田间土壤中）均显着降低了疾病严重程度。最有效的治疗方法是两次使用MICROTECH-1（NL），这大大降低了厚朴叶冠心病的病害严重程度和FP种群，并增加了植物有益微生物的种群。