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  • Open Access

    REVIEW

    Papaya Ring Spot Virus: An Understanding of a Severe Positive-Sense Single Stranded RNA Viral Disease and Its Management

    Muhammad Umer1, Mustansar Mubeen2, Yasir Iftikhar2,*, Haider Ali3, Muhammad Zafar-ul-Hye4, Rafia Asghar5, Mazhar Abbas6, Malik Abdul Rehman7, Ernesto A. Moya-Elizondo8, Yuejun He1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.10, pp. 2099-2110, 2022, DOI:10.32604/phyton.2022.022013

    Abstract Viral diseases have been studied in-depth for reducing quality, yield, health and longevity of the fruit, to highlight the economic losses. Positive-sense single-stranded RNA viruses are more devastating among all viruses that infect fruit trees. One of the best examples is papaya ringspot virus (PRSV). It belongs to the genus Potyvirus and it is limited to cause diseases on the family Chenopodiaceae, Cucurbitaceae and Caricaceae. This virus has a serious threat to the production of papaya, which is famous for its high nutritional and pharmaceutical values. The plant parts such as leaves, latex, seeds, fruits, bark, peel and roots may… More >

  • Open Access

    ARTICLE

    CO2 Assimilation Rate in Production Systems for Papaya Crops

    R. Ariza-Flores1, D. Trujillo-García2, M. A. Otero-Sánchez2, E. Canales Sosa2, C. H. Avendaño-Arrazate3,*, L. A. Gálvez-Marroquín4, P. Cadena Iñiguez5

    Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 933-947, 2021, DOI:10.32604/phyton.2021.013227

    Abstract The aim of this study was to evaluate some physiological aspects of papaya crops in semi conventional and organic production systems. The following factors assessed in this experiment were: 1. Production systems (organic and semi conventional); 2. Genotypes (Maradol and Maradona F1), and 3. Cover crop plants (Canavalia, vegetative cover and no cover). Twelve treatments were obtained -product of factors’ combination- and distributed under a threerepetition experimental design of subdivided parcels. The factors examined in this study, that changed the CO2 assimilation rate, were production system and genotype. It was determined that the greatest gas exchange in papaya crops happened… More >

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