IPR 103 - Rustic dwarf arabic coffee cultivar more adapted to hot regions and poor soils

IPR 103 - Cultivar de café arábica rústica mais adaptada para regiões quentes e solos pobres

CULTIVAR RELEASE

IPR 103 – Rustic dwarf arabic coffee cultivar more adapted to hot regions and poor soils

IPR 103 – Cultivar de café arábica rústica mais adaptada para regiões quentes e solos pobres

Tumoru Sera^I; Gustavo Hiroshi Sera^I; Luiz Carlos Fazuoli^II

^IInstituto Agronômico do Paraná (IAPAR), Londrina, PR, Brazil. E-mail: [e-mail]

^IIInstituto Agronômico (IAC), Campinas, SP, Brazil

ABSTRACT

'IPR 103' was derived from a cross between "Catuaí" and "Icatu". 'IPR 103' is a medium size dwarf cultivar with high rusticity, partially resistant to coffee leaf rust with late ripening. This cultivar is more adapted to hot regions and poor soils. It presents partial resistance to necrosis and mummification of young fruits on field conditions.

Key words: Breeding, Coffea arabica, partial rust resistance.

RESUMO

A 'IPR 103' foi derivada do cruzamento entre "Catuaí" e "Icatu". 'IPR 103' é uma cultivar de porte compacto médio com alta rusticidade, parcialmente resistente à ferrugem e com maturação dos frutos tardia. Essa cultivar é mais adaptada para regiões quentes e de solos pobres. Em condições de campo, apresenta resistência parcial à necrose e mumificação de frutos jovens.

Palavras-chave: Coffea arabica, melhoramento genético, resistência parcial à ferrugem.

INTRODUCTION

The majority of arabic coffee areas in Brazil use cultivars of Catuaí germplasm. These cultivars present high productivity, wide adaptability and late ripening, similar to 'IPR 103', but it are susceptible to coffee leaf rust and young fruit necrosis and mummification.

'IPR 103' was derived from a cross between "Catuaí" and "Icatu" and has incorporated some traits by introgressed genes of C. canephora from "Icatu", such as biotic and abiotic rusticity. 'IPR 103' is a medium size dwarf cultivar with partial resistance to leaf rust (Hemileia vastatrix Berk. et Br.) (Sera et al. 2010), partially resistant to necrosis and mummification of young fruits on field conditions (Sera et al. 2005, Sera et al. 2007) and late ripening. This cultivar is recommended for semi dense and dense planting systems in lower and higher temperature areas with annual average between 19 and 23 ºC, in the State of Paraná.

PEDIGREE AND IMPROVEMENT METHOD

'IPR 103' was developed using the genealogical method. It was derived from a cross between plants of "Catuaí" and "Icatu", performed at Instituto Agronômico de Campinas (IAC) in 1972. In 1977, IAPAR introduced the F₃ generation (IAC H 9878 - EP 187 c.582), named PR 77054. The F₄ progeny PR 77054-40 was selected. The plant number 10 was selected and it originated the F₅ progeny PR LF 77054-40-10, later named 'IPR 103' and released in 2006.

PERFORMANCE

'IPR 103' can be cultivated in regions with annual average temperature between 19 and 21 ºC, such as Londrina (580 m altitude) and Congonhinhas (750 m altitude) municipalities and in regions with annual average temperature between 22 and 23 ºC, such as Itaguajé (350 m altitude) and Lupionópolis municipalities. The 'IPR 103' was evaluated in three locations of Paraná State with 16 annual harvests and it was more productive than 'IAPAR 59' and 'Catuaí Vermelho IAC 81' (Table 1) because of rusticity and better performance to several biotic and abiotic stresses.

'IPR 103' is a medium size dwarf cultivar, similar to "Catuaí", recommended for spacing between plants varying from 0.50 to 0.80 m, depending on the annual average temperature of local cultivation and on the technologies used, such as fertilization, irrigation and pruning. In hot regions without irrigation, the spacing ought to be narrower since the canopy diameter and branching are usually smaller. On farms with fertirrigation, the spacing between rows and between plants can be larger. On farms where pruning are frequently used, the spacing can be smaller. Using wider spacing between plants will increase plant yield; hence, it will be necessary more nutrition. The spacing between rows can vary from 2.50 to 3.00 m, according to the coffee crop area and the level of mechanization.

OTHER TRAITS

'IPR 103' presents late ripening, even later than "Catuaí". At lower temperatures with annual average between 19 and 21 ºC, the ripening usually occurs around August. At higher temperatures with annual average between 22 and 23 ºC, the ripening usually occurs around June.

'IPR 103' can be used in association with other dwarf coffee cultivars with different ripening times (e.g. 'IAPAR 59' = semi early, 'IPR 98' = medium, 'IPR 99' = semi late) in order to reduce the labor, infrastructure and equipment requirements. By using 'IPR 103' with other maturation cultivars group for harvest in different times, the rain risk at harvest is reduced and it is easier and cheaper to produce more quality coffee in the rainy and cool coffee regions of Paraná State.

'IPR 103' shows rusticity and better adaptation to high temperatures and poor soils, comparing to other compact cultivars such as "Catuaí" and 'IAPAR 59'. 'IPR 103' was selected in coffee regions with poor and sandy soils, low altitudes and higher temperatures, with annual average between 21 and 23 ºC, in the State of Paraná. In this State, this cultivar is highly recommended for cultivation in the west and northwestern regions (Arenito Caiuá), and in lower altitudes of argillaceous soils regions. 'IPR 103'could be planted in lower temperature areas with annual average between 19 and 20 ºC in Paraná, but it must be planted in areas with reduced frost risk since this cultivar presents late ripening.

Currently, 'IPR 103' is partially resistant (moderately susceptible) to rust physiological races present in Paraná State (Sera et al. 2010) and it may require chemical control, but with a lower number of fungicide applications in comparison with susceptible and highly susceptible cultivars.

'IPR 103' presents a good level of partial resistance (moderate resistance) to the symptoms of necrosis and mummification of fruits (Sera et al. 2005, Sera et al. 2007). These symptoms are being associated with the attack of Colletotrichum spp. or Colletotrichum gloeosporioides Penz (Juliatti and Silva 2001, Paradela-Filho et al. 2001).

The cup quality is similar or superior to "Catuaí". These traits and others are described in Table 2.

SEED MAINTENANCE AND DISTRIBUTION

'IPR 103' is registered by the National Cultivar Registry (Registro Nacional de Cultivares - RNC) of the Ministry of Agriculture, Livestock and Supply (Ministério da Agricultura, Pecuária e Abastecimento – MAPA) under the number 09945, in Brazil. IAPAR is in charge of genetic and basic seeds, and private seed producers who are registered in MAPA are responsible for certified seeds.

Received 05 September 2012

Accepted 19 November 2012

• Juliatti FC and Silva SA (2001) Antracnose: Colletotrichum gloesporioides Penz e outras espécies. In Juliatti FC and Silva SA (ed.) Manejo integrado de doenças na cafeicultura do cerrado Editora UFU, Uberlândia, p. 37-50.
• Paradela-Filho O, Paradela AL, Thomaziello RA, Ribeiro IJA, Sugimori MH and Fazuoli LC (2001) O complexo Colletotrichum do cafeeiro. Boletim Técnico IAC, Campinas, n. 191, 11p.
• Sera GH, Sera T, Fonseca ICB and Ito DS (2010) Resistência à ferrugem alaranjada em cultivares de café. Coffee Science 5: 59-66.
• Sera GH, Sera T, Ito DS, Azevedo JA, Ribeiro-Filho C and Mata JS (2007) Partial resistance to fruit necrosis associated to Colletotrichum spp. among arabic coffee genotypes. Brazilian Archives of Biology and Technology 50: 395-402.
• Sera GH, Sera T, Ito DS, Doi DS, Ribeiro-Filho C, Mata JS and Azevedo JA (2005) Avaliação de cultivares de café arábica para resistência de campo a antracnose (Colletotrichum gloeosporioides) em região quente do Paraná. SBPN Scientific Journal 9: 26-27.

Publication Dates

• Publication in this collection
  16 May 2013
• Date of issue
  Mar 2013

History

• Received
  05 Sept 2012
• Accepted
  19 Nov 2012