Developed by COODETEC CD 114 was indicated for cultivation in the states of Paraná and Rio Grande do Sul. The plant height is low, sanity conditions and industrial quality good. It averages a grainyield of 3,269 kg ha-1 in the state of Paraná and of 3,087 kg ha-1 in the state of Rio Grande do Sul

Franco, Francisco de Assis

Marchioro, Volmir Sergio

Nora, Tatiane Dalla

Oliveira, Edson Feliciano de

Schuster, Ivan

Sobrinho, Ademar Alves

English

UFV Journals (Universidade Federal de Viçosa)

Crop Breeding and Applied Biotechnology 7:100-102, 2007 Brazilian Society of Plant Breeding. Printed in Brazil CD 114 - Wheat cultivar for colder regions Volmir Sergio Marchioro!*, Francisco de Assis Franco!, Tatiane Dalla Nora!, Ivan Schuster!, Edson Feliciano de Oliveira!, and Ademar Alves Sobrinho! Received 16 September 2005 Accepted 14 March 2006 ABSTRACT - Developed by COODETEC CD 114 was indicated for cultivation in the states of Paraná and Rio Grande do Sul. The plant height is low, sanity conditions and industrial quality good. It averages a grainyield of 3,269 kg ha"' in the state of Paraná and of 3,087 kg ha"' in the state of Rio Grande do Sul Key words: grain yield, wheat cultivar, CD 114. INTRODUCTION The yield increase is result of the use of improved cultivars, favorable environment conditions and the implementation of appropriate technologies for the different wheat-growing regions. According to Carvalho etal. (2003), the development of new cultivars that meet the demand of a greater genetic potential for yield is the main goal of any breeding program. In this sense, the wheat breeding program of COODETEC targets the development of cultivars adapted to the main wheat- producing regions of Brazil. The excellent grain yield potential, low plant height, as well as good sanity conditions and industrial quality indicate the new cultivar CD 114 for the southern region of Brazil. PEDIGREE AND BREEDING METHODS The new wheat cultivar CD 114 was developed by COODETEC (Figure 1). F, seeds were obtained by a crossing of the parents PF 89232 and OC 938. The F, population underwent mass selection and the populations F; and F, modified mass selection, which consists in the selection of the best plants. The seeds of these plants are mixed and used to establish the next generation. The F; and F. populations were selected by the pedigree method, which consists in the selection of plants whose seeds are used to establish a new population in the following generation. The F; populations were selected by the mass method, which originated several sib lines. Cultivar CD 114 was derived from the best one (pedigree CO13460-00P-00P-00V-8T- om). PERFORMANCE Upon evaluation in preliminary trials, trials to determine the Value for Cultivation and Use (VCU) were realized in 2001, 2002 and 2003, at different places and in different seasons of the regions of adaptation 6 ! Cooperativa Central de Pesquisa Agricola (COODETEC), BR 467, km 98, C.P. 301, 85818-660, Cascavel, PR, Brazil. *E-mail volmir@coodetec.com br 100 Crop Breeding and Applied Biotechnology 7:100-102, 2007NS 713 PICHIHUILA OC 938 HAHN CL 14119 — PF 89232 { PF 8237*2 — BR 2 CD 114 RC 7281 BR2 Figure 1. Pedigree of the new cultivar CD 114 (North), 7 (Central West) and 8 (Central South) of the state of Parana (Figure 2), with the acronym CD 200132. The design used in the VCU trials consisted in randomized blocks with three replications. The 25 treatments were sown on plots of 6 rows spaced 0.2 cm apart, 5 m long, making up 6 m?. Values that were 26% and 18% higher than the control means were found for grain yield in the regions 2 and 3 of the state of Rio Grande do Sul, respectively (Table 2). Table 3 shows the mean grain yield in the regions 6, 7 and 8 of the state of Parand, where the new cultivar CD 114 presented 10%, 13% and 15% higher grain yields than the control means, respectively, in the three regions. The good performance of the new cultivar CD 114 indicated it for Figure 2. Regions of adaptation for trials that determine the Value for Cultivation and Use (VCU) Crop Breeding and Applied Biotechnology 7: 100-102, 2007 CD 114 - Wheat cultivar for colder regions cultivation in the wheat-growing regions 2 and 3 of the state of Rio Grande do Sul and 6, 7 and 8 of the state of Parana (Resbpt, 2005; Reesbpt, 2005). The cultivar was, registered by the Servigo Nacional de Protegdo de Cultivares do Ministério da Agricultura, index nr. 00553, as of February 18, 2004 (Mapa, 2005). In 2005, the recommendation for cultivation was extended to the regions 1 of the state of Rio Grande do Sul and 4 and 5 of the state of Santa Catarina (Figure 2). OTHERTRAITS The new CD 114 cultivar is moderately resistant to lodging, moderately susceptible to pre-harvest sprouting and moderately tolerant to aluminum soil toxicity. The analysis of industrial quality, based on 4 samples of experimentation in the state, attained mean general gluten strength (W) value of 244, which included CD 114 in the group of bread wheat cultivars, with a mean hectoliter weight of 77 kg.hL' and weight of 1000 grains of 36 g (Table 1). The strong points of the new cultivar CD 114 are the excellent grain yield potential, low plant height, good sanity conditions and good industrial quality. (Franco et al. 2004). The plant height of the new cultivar CD 114 is low, varying between 65 and 85 cm, and the cycle is mean, between 62 to 86 days from emergence to flowering and 110 to 136 days from emergence to maturation (Table 1). The means of these traits were 73 cm, 69 days and 125 days, respectively, which vary according to climate conditions, sowing season and soil type. The field experiments of 1999 through 2003 allowed us to record information about the occurrence of different wheat diseases in Brazil. Powdery mildew (Erysiphe graminis tritici) attack was observed with mean to low severity which expresses moderate susceptibility. The cultivar was further susceptible to head blight (Fusarium graminearun), spot blotch (Bipolaris sorokiniana) and speckled leaf blotch (Septoria tritici and S. Nodorum). Severity indices of leaf spotand glume blotch were determined, which classified the new cultivar as moderately susceptible. The mean severity, in the evaluation of leaf rust (Puccinia recondita f. Sp. Tritici), was low in field conditions, indicating that the new cultivar is moderately 101VS Marchioro etal. Table 1. Means of days from emergence to flowering (EF), days from emergence to maturation (EM), plant height (PH), hectoliter weight (HW), weight of 1000 grains (WG), general gluten strength (GW), leaf rust (LR), leaf spot (LS) and powdery mildew of the leaf (PM) of the new cultivar CD 114 and the controls, in the VCU trials conducted in the Regions 6, 7 and 8 of Parand between 2001 and 2003 Cultivar o3 EM PH HW WG GW LR LS PM (days) — (days) (em) (kg.hL") (2) (10~ )) (%) (score) — (score)' CD 114 69 125 73 77 36 244 2 22 11 TBRIST 64 120 75 77 41 266 10 2.6 1.0 IAPAR 53 74 126 79 76 38 230 39 34 11 CEP 24 73 129 9% 75 39 248 9 15 09 Mean (T) 70 125 83 76 39 248 19 25 1.0 "Score scale of 1 to 9 Table 2. Mean grain yield (kg ha") of the new cultivar CD 114 and the controls in the wheat-growing regions 2 and 3 of the state of Rio Grande do Sul, from 2001 to 2003 Cultivar Region 2 Region 3 2001 2002 2003 Mean 2001 2002 2003 Mean CD 114 2213 2881 4068 3054 2859 — 2479 4021 3120 Mean (T) 1887 2059 3319 2422 2707 1814 3440 — 2654 *The controls used in the comparison were CEP 24 and FUNDACEP 27 resistant. CD 114 was classified as moderately resistant to wheat mosaic virus. This disease occurs, according to Reis etal. (2001), mainly in the colder regions of Rio Grande do Sul and the Campos Gerais region of Paraná, where it can be detected on entire plantations or most commonly in thickets. SEED MAINTENANCE AND DISTRIBUTION COODETEC (BR 467 - km 98 - Caixa Postal 301 - CEP.85813-450 - Cascavel/PR, Brazil) is licenser of protected cultivars according to law nr. 9456/97. The institution contracts seed companies for multiplication and trade. Besides, regional representatives work under the supervision of specific administration to promote seed commercialization and distribution. REFERENCES Carvalho FIF, Lorencetti C, Marchioro VS and Silva SA (2003) Condução de Populações no Melhoramento Gené- tico de Plantas. Editora da UFPel, Pelotas. 230p. 102 Franco FA, Marchioro VS, Oliveira EF and Dalla Nora T (2004) Resultados de rendimento de grãos e características agro- nômicas da nova cultivar de trigo CD 114, no período de 2001 a 2003, no Paraná. In: 29* Reunião da comissão Centro-Sul Brasileira de Pesquisa de Trigo. Embrapa Soja, Londrina, p.112-115 MAPA - Ministério da Agricultura, Pecudria e Abastecimento (2005) Servigo nacional de proteção de cultivares. Brasilia, http://www. agricultura.gov. br/sarc/dfpv/Ist1200. htm. Reis EM, Casa RT and Medeiros CA (2001) Diagnose, patometria e controle de doengas de cereais de in- verno. MC Grafica Ltda, Londrina. 94p. RCCSBPT - Reunido da Comissão Centro-Sul Brasileira de Pe: quisa de Trigo e Triticale (2005a) Informagdes Técni cas da Comissio Centro-Sul Brasileira de Pesquisa de Trigo e Triticale para a safra de 2005. Embrapa Soja, Londrina, 234p RCSBPT - Reunido da Comissão Sul-Brasileira de Pesquisa de Trigo (2005b) Indicagdes Técnicas da Comi Brasileira de Pesquisa de Trigo: Trigo ¢ T 2005. FUNDACEP, Cruz Alta, 159p. Crop Breeding and Applied Biotechnology 7:100-102, 2007

CD 114 – Wheat cultivar for colder regions

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CD 114 – Wheat cultivar for colder regions

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