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      Melhoramento do cafeeiro: XXVIII - Ensaio de seleções regionais em Mococa Translated title: Coffee breeding: XXVIII - Comparative yield trial of coffee progenies and cultivars at Mococa

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          Abstract

          Os resultados da produtividade e de outras características de 64 progênies selecionadas de café plantadas em Mococa foram avaliados e discutidos. Compararam-se êsses resultados com os obtidos em ensaios semelhantes plantados em Campinas e Jaú, e traçaram-se paralelos entre o comportamento dos cultivares e das progênies individuais nas três regiões ecológicas. O grupo de progênies de 'Mundo Nôvo' revelou-se o mais produtivo, de maior vigor e de sementes maiores e mais pesadas. As progênies dêsse cultivar de prefixos CP 387-17, MP 386-2, CP 379-19 e MP 376-4 mostraram-se mais produtivas e com boas características vegetativas, podendo ser recomendadas para plantio na região. A progênie CP 387-17 produziu 250 por cento a mais, de café beneficiado, do que o padrão 'Tipica', comumente cultivado na região ao se iniciarem os trabalhos de seleção. A de prefixo MP 386-2, além de produtiva, apresentou as sementes maiores e mais pesadas. As quatro progênies de 'Mundo Nôvo' mais produtivas deram pràticamente 100 por cento a mais do que o testemunha 'Mundo Nôvo', sem seleção, indicando o acentuado progresso conseguido no melhoramento dêsse cultivar, pelo método de seleção individual.

          Translated abstract

          The coffee selection program of the Instituto Agronomico at Campinas has been carried on in five experimental stations located in different ecological conditions. After identifying the best progenies in each station, a series of five trials was established to evaluate the adaptability of these selections to different localities. The present paper refers to a trial planted in the Experimental Station at Mococa in the northeastern part of the Stale of S. Paulo, with heavy clay soil (massapê-salmourão). The selected progenies of 'Mundo Nôvo' cultivar were superior to any other progenies studied in all characteristics considered: yield, vigor, and size and weight of flat seeds. Among them the progenies CP 387-17, MP 386-2, CP 379-19 and MP 376-4 revealed to be the most promising ones for high yield, vigor and seed size. The progeny CP 387-17 produced 250 per cent more clean coffee than the tester 'Tipica' commonly grown in the Mococa region at the beginning of the coffee selection project. Remarkable progress was observed in the selection of progenies by the pedigree method from the originai population of 'Mundo Nôvo'. The four best selections had an average production 100 percent higher than the original population. The results obtained confirm observations made for the same progenies grown in Campinas and Jau, in that the 'Mundo Nôvo' progenies have a very broad adaptation giving high yields in diverse ecological conditions.

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          O cálculo da "Peneira média" na seleção do cafeeiro

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            Efeito da lojas vazias sobre o rendimento do café Mundo Novo

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              Melhoramento do cafeeiro: X - Seleção visando eliminar o defeito «lojas vazias» no café 'Mundo Nôvo'

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                brag
                Bragantia
                Bragantia
                Instituto Agronômico de Campinas (Campinas )
                1678-4499
                1965
                : 24
                : unico
                : 9-27
                Affiliations
                [1 ] Instituto Agronômico Brazil
                [2 ] Instituto Agronômico Brazil
                Article
                S0006-87051965000100002
                10.1590/S0006-87051965000100002
                bcd1668a-85a4-4aa3-98df-13c1988136dc

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0006-8705&lng=en
                Categories
                AGRICULTURE, MULTIDISCIPLINARY

                General agriculture
                General agriculture

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