Prevention of the bad dry of the malanga by treatment of natural, biological origin
| Autor: | Michel Chamizo Nicao, Daymí Isabel Carrazana García, Ernesto Espinosa Cuéllar, Annarella Chea González, Mayra Acosta Suárez, Rene Cupull Santana |
|---|---|
| Jazyk: | Spanish; Castilian |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Centro Agrícola, Vol 41, Iss 2, Pp 33-38 (2014) |
| Druh dokumentu: | article |
| ISSN: | 0253-5785 2072-2001 |
| Popis: | One of the most important causes of the decrease of yields in taro crops (Xanthosoma spp.) isthe roots rot caused by soil fungi (Bad dry) which it’s propagated by the agamic seed used as propagules. One of the most important measures to prevent it is the use of “in vitro” plants free of fungi. In this research was studied the incorporation of several natural and biological products in the plots employed to acclimatize the “invitro” plants. Were evaluated: Trichoderma harzianum, Chitosan, and lobster shell ( Panulirus argus (Latreille))and as control Mancozeb. The taro cultivars employed were Blanca INIVIT and Blanca Venegas, considerate as intermediated and susceptible respectively. Each plot was inoculated with propagules of Sclerotium rolsfii (Sacc.). In order to infer the action mechanism was conducted susceptible tests under “in vitro” conditions. The results showed that the most susceptible cultivar was Blanca Venegas. All treatments decrease the incidence of dry rot, among these. T. harzianum produced the highest effect, antagonist capacity and antagonist effect type. The Chitosan and the lobster shell do not showed antifungal direct effect and probably act for stimulation of the protein synthesis related with the pathogenesis or structural barrier of defense in natural conditions. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|