Agronomic performance of arabica coffee genotypes in northwest Rio de Janeiro State

Abstract

ABSTRACT. Considering the productive potential of arabica coffee in the Rio de Janeiro State and the shortage of breeding programs for this species in the state, this study aimed to evaluate the vegetative and productive characteristics of 25 arabica coffee genotypes to indicate 1 or more varieties for the northwest Rio de Janeiro region. The experiment was in Varre e Sai, RJ, Brazil, and plants were planted in 2007 with a spacing of 2.5 x 0.8 m. Five plots were used, consisting of 8 plants per plot to measure vegetative growth, height, stem diameter, and plagiotropic branch number characteristics and productivity in the biennia 2009/2010 and 2011/2012. The classification by sieve was performed at harvest in 2011. The variables were subjected to analysis of variance and means grouped by the Scott Knott test at 5% probability, and the productivity was subjected to joint analysis of variance. Pearson's correlation coefficients between growth and productivity

Development of clonal seedlings of promising Conilon coffee (Coffea canephora) genotypes

“…The group with the highest values comprised the genotypes P2, Z39, A1, Peneirão, Cheique, Bamburral, Bicudo, Tardio C, Z37, Z21, Z38, Z29, Ouro Negro and L80 for PSBD; genotype 18 had the highest value for NIPS (Table 1). Higher values for NPTB and PSBD are desirable, as they exhibit high correlation with productivity in future harvests (Bustamante et al, 2004;Contarato et al, 2010), and productivity is the main objective and selection criteria in coffee cultivation (Oliveira et al, 2011;Rodrigues et al, 2014). No significant differences were observed among the analysed genotypes in SSH, SSBD, or NISS (Table 2).…”

IPR 102 - Dwarf Arabica coffee cultivar with resistance to bacterial halo blight

“…'IPR 102' mostly stood out in Mandaguari, since at the spacing 2.5 x 0.5 m, IPR 103 did not differ from IAPAR 59 and Catuaí, while IPR 102 differed from these two cultivars. Moreover, in Mandaguari, at the spacing of 3 x 0.5 m, IPR 102 had higher yield than 'IPR 103', which is a cultivar with high yield in different cultivation environments of Brazil, in the states of Paraná (Sera et al 2013), Minas Gerais (Carvalho et al 2012), and Rio de Janeiro (Rodrigues et al 2014). In Londrina, IPR 102 did not differ from IPR 103, and in Itaguajé, IPR 103 had higher yield than IPR 102.…”

“…Some cultivars have surpassed the yield of cultivars of these two groups in some cultivation environments, such as Catucaí Amarelo 20/15, Sabiá 398, Catiguá MG 02, Catucaí Amarelo 24/137, IPR 103, IPR 100 and Acauã, which had higher yield than Catuaí Vermelho IAC 144 in the northwest region of the state of Rio de Janeiro, Brazil (Rodrigues et al 2014). Sabiá 398 had higher yield than Catuaí Amarelo IAC 74 in the municipality of Varginha, Minas Gerais, Brazil (Paiva et al 2010).…”

Biometry and diversity of Arabica coffee genotypes cultivated in a high density plant system

“…Genotypes belonging to the two highest crop yield groups, such as Catiguá MG2 and Catucaí Amarelo 24/137, were shown to have high productivity in areas north of Rio de Janeiro (southeast coast of Brazil) (Rodrigues et al, 2014c). Similarly, Pau-Brasil MG1 and Catucaí Amarelo 24/137 were also considered suitable for cultivation in the State of Minas Gerais (southeast region Brazil), due to their constant yield and adaptability to different environments (Carvalho et al, 2012).…”

“…The genotype Katipó had the highest proportion of grains retained in sieves larger than sieve 16 (80%) ( Table 4). Rodrigues et al (2014c) described Catiguá MG2 as having a satisfactory classification of grain size when compared to other cultivars grown in the northern State of Rio de Janeiro. Moreover, these authors point out the importance of classifying cultivars according to grain size, similarly as done in the product market.…”