‘Scs421 Carolina’, First Japanese Pear Cultivar Developed in Brazil

Abstract

-the new SCS421 Carolina cultivar, belonging to the Pyrus pyrifolia var. culta species, is classified as an Asian pear type or more specifically Japanese pear type. It was obtained from the Kousui x Osanijisseiki crossing made at Epagri / Caçador Experimental Station. Its flowering occurs from the second half of September to mid-October, similarly to Housui cultivar. According to preliminary results, 'Yali' and 'Housui' may be used as pollinators. The harvest takes place in the first half of February and production is above 20 t / ha. Plants produce more rounded and symmetrical fruits compared to Housui cultivar. The fruit skin is golden, the pulp is crispy, soft, sweet, very juicy and slightly aromatic. Fruits can be stored for up to four months in conventional cold storage. The incidence of scabies and dry branch diseases in the field has not been recorded. It is recommended for cultivation at colder regions of southern Brazil. Index terms: Pyrus pyrifolia var. culta; pear; fruit quality.'SCS421 CAROLINA', PRIMEIRA CULTIVAR DE PEREIRA-JAPONESA DESENVOLVIDA NO BRASIL RESUMO -a nova cv. SCS421 Carolina, pertencente à espécie Pyrus pyrifolia var. culta, é classificada como pereira do tipo asiática ou, mais especificamente, japonesa. Foi obtida do cruzamento entre Kousui x Osanijisseiki, realizado na Epagri/Estação Experimental de Caçador. Sua floração ocorre desde a segunda quinzena de setembro até meados de outubro, similar à cv. Housui. Conforme resultados preliminares, 'Yali' e 'Housui' podem ser utilizadas como seus polinizadores. A colheita ocorre na primeira quinzena de fevereiro, e a produção situa-se acima de 20 t/ha. Suas plantas produzem frutos arredondados e mais simétricos que os da cv. Housui. A epiderme da fruta é dourada, sendo a polpa crocante, doce, muito suculenta e levemente aromática. Os frutos podem ser conservados até quatro meses em câmara fria convencional. Não tem sido registrada a incidência de sarna e seca dos ramos nas plantas, a campo. É indicada para o cultivo nas regiões mais frias do Sul do Brasil. Termos para indexação: Pyrus pyrifolia var. culta, pera, qualidade do fruto.

Effects of silicon on biochemical and physiological aspects in Theobroma cacao under inoculation with Moniliophthora perniciosa

“…The beneficial relation of silicon against pathogens is reported is studies with different vegetal species (Zambolim et al, 2009;Carré-Missio et al, 2012;Guerra et al, 2014;Polanco et al, 2014;Santos et al, 2014;Catalani et al, 2016). There was statistical interaction between inoculation and silicon application factors to all variables analyzed, except for Si leaf content (Table 1) and the internal carbon dioxide concentration (Table 2).…”

“…Existing studies on silicate leaf fertilization have pointed out the potential of silicon to increase resistance against pathogens (Carré-Missio et al, 2012;Catalani et al, 2016). Silicon is placed on the leaves in the form of amorphous silica on the epidermis, creating a mechanical resistance barrier against fungi getting into the plant interior after its polymerization on the leaf surface (Korndörfer et al, 2004).…”