Abstract
Mildew taro caused by Phytophthora colocasiae affection is the most devastating of taro cultivation in Cameroon since 2010. It has been studied in leading the influence that can have a parameter considered favourable in the kinetics of the disease, and secondly, the interaction between plots through zoospores that can move from one field to another while estimating their dispersal throughout the plant. These models have allowed us to demonstrate that the duration of pathogen latency period, the number of sporangia produced on the surface of a lesion as well as the severity of the infection taken individually, are parameters to be taken into account in the development of a variety resistant to late blight taro. The dynamics of the fungus over time is represented by a matrix. The latter was used to establish a detailed estimate of the number of new infections caused by a sporangium placed in a landscape of healthy leaves. This number is known as the net rate of breeding base name (R0). The incidence and severity of disease are significantly reduced when the rate is less than or equal to one. So our approach can be used to guide research programs or evaluate the effectiveness of control strategies to design throughout the plant.
Highlights
Taro (Colocasia esculenta (L.) Schott) is a monocotyledonous plant belonging to the Araceae family [1]
Model Construction The dynamics of P. colocasiae is governed by the following set of biological assumptions: (i) units of dissemination of P. colocasiae is the sporangia and the zoospore; (ii) it support of infection is a healthy sheet of C. esculenta; (iii) the sporangia can is to infect directly that is to say to produce n1 zoospore to increase the infections ; (iv) a lesion is latent during a certain period P becomes infectious; (v) an infectious lesion produced n2 sporangia per day and can produce n3 oospores when the conditions are unfavourable; (vi) daily, d number of infectious lesions stops the sporulation and (vii) m healthy or latent sheets dies under the blow of the bad weather
We studied in leading the influence that can have a favourable trial setting in the kinetics of the disease, the end of which we believe that the duration of the pathogen latency period, the number of sporangia products on the surface of a lesion as the efficiency of infection of the zoospore or sporangia individual parameters are taken into account in the development of a variety of taro appropriate level of resistance
Summary
Taro (Colocasia esculenta (L.) Schott) is a monocotyledonous plant belonging to the Araceae family [1]. This plant about two meters high is from Asia. Its spread has been almost universal in tropical Asia and even Japan before reaching Arabia and the Mediterranean basin at the beginning of our era and Tropical Africa later [3]. This plant was introduced to the Caribbean with African slaves. Its worldwide production is estimated at 12 million tons on a cultivated area of 2 million hectares [5, 6]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
