Isolation of Mycorrhizal Rhizoctonia as resistance inducer of Dendrobium macrophyllum to drought

4th International Conference on Sustainable Agriculture and Environment

农业科学;生态环境科学

Soelistijono, R.^1 ; Daryanti^1 ; Handayani, M.T.^1

Agricultural Faculty of Universitas Tunas Pembangunan, Jl. Balekambang Lor No.1, Surakarta

57139, Indonesia^1

关键词: Binucleate rhizoctonias;    Cell lengths;    Cell width;    Exposed to;    High water;    Induced resistance;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/142/1/012013/pdf
DOI  :  10.1088/1755-1315/142/1/012013

来源: IOP

【 摘 要 】

One of the obstacles encountered in the cultivation of orchids Dendrobium macrophyllum is difficult to cultivate in areas with high drought due to the slow absorption of nutrients. Based on previous research, the mycorrhizal binucleate Rhizoctonia (BNR) has the ability to increase the resistance of vanilla (Vanilla planifolia Andrews) to drought, but it has never been tried on orchid Dendrobium macrophyllum. The objectives of this study was to isolate resistance inducer organisms by induced resistance techniques on orchids against drought. It is expected that the administration of mycorrhizal Rhizoctonia can increase the absorption of nutrients in D. macrophyllum which is exposed to high water stress. Each treatment consisted of 3 replications of 3 potted plants. The characterization of mycorrhizal Rhizoctonia isolate from D. macrophyllum root from Surakarta, Kopeng, Magelang, and Yogyakarta did not different morphologically. Character equations are in colony color, cell length and number of cores, while character differences are present in cell width and all isolates are capable of forming a peloton structure.