Starch, growth, and development in cuttings of rootstock 'Paulsen 1103' from plants infested with ground pearl

Autor: ZART, M., SANTOS, H. P. dos, SOUZA, P. V. D. de, SOUZA, D. A., DENARDI, D.
Přispěvatelé: Marcelo Zart, Universidade Estadual do Norte do Paraná (UENP), Cornélio Procópio, PR, Brasil., HENRIQUE PESSOA DOS SANTOS, CNPUV, Paulo Vitor Dutra de Souza, Departamento de Horticultura e Silvicultura, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil., DANIEL ANTUNES SOUZA, CNPUV, Diana Denardi, Embrapa Uva e Vinho, Rua Livramento, 515, CP 130, 95701-008, Bento Gonçalves, RS, Brasil.
Jazyk: portugalština
Rok vydání: 2016
Předmět:
Zdroj: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice)
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
Popis: The ground pearl, Eurhizococcus brasiliensis, is considered an important pest of vineyards in southern Brazil, with affected plants exhibiting leaf chlorosis, reduction in vigor, fading, and death. This study evaluated the quality of hardwood cuttings produced from plants infected (I) and not infected (NI) by ground pearl. "Paulsen 1103" (Vitis berlandieri × Vitis rupestris) plants were grown for 29 months in brick-built raised beds either infested or not infested by ground pearl; then, 12 one-year-old branches with a maximum of 12 buds each were cut from each plant, subdivided into three portions (4 buds cutting-1), and subjected to destructive and nondestructive testing. Destructive testing comprised determining fresh and dry weight, length, internode diameters, and percentage of starch. Nondestructive testing comprised assessing the potential for bud sprouting and shoot development. Each mother plant in the I and NI beds was considered a replicate, with a total of 360 cuttings per treatment. It was observed that cuttings from infected plants had significantly lower (P
Databáze: OpenAIRE
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