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REGISTRATIONS OF CULTIVARS

Registration of ‘Early Rose’ Pink Common Bean

^a Agriculture and Agri-Food Canada, Lethbridge Research Centre, P.O. Box 3000, Lethbridge, AB, Canada T1J 4B1
^b Agriculture and Agri-Food Canada, Morden Research Station, Unit 100-101 Route 100, Morden, MB, Canada R6M 1Y5
^c Agriculture and Agri-Food Canada, Southern Crop Protection and Food Research Centre, 1391 Sandford Street, London, ON, Canada N5V 4T3

^* Corresponding author (muendel{at}agr.gc.ca)

‘Early Rose’ (Reg. no. CV-214, PI 633618), a very early maturing pink common bean (Phaseolus vulgaris L.), was developed at the Agriculture and Agri-Food Canada (AAFC) Research Centre, Lethbridge, AB, in cooperation with the AAFC Research Station, Morden, Manitoba and released in 2003. It is a high yielding cultivar adapted to narrow-row production across southwestern Canada. Early Rose has a semierect growth habit and resistance to Beancommon mosaic virus (BCMV, a poty virus) and bacterial wilt [caused by Curtobacterium flaccumfaciens pv. flaccumfaciens (Hedges) Collins & Jones]. Registration no. 5620 was issued for Early Rose on 3 Apr. 2003 by the Variety Section, Plant Products Division, Canadian Food Inspection Agency.

Early Rose, tested as L94C356, was derived from a single cross, 89090C = 55038/5524. Pink breeding lines 55038 and 5524 were developed by J. Myers at the University of Idaho, Kimberly, Idaho. Line 55038 (‘UI 37’/'Viva') is early maturing; while line 5524 (AR8-5/D-80//Viva) is later maturing. Cross 89090C was advanced in the field near Lethbridge by single seed descent to the F₄. The F₅ and F₆ single plants were selected based on very early maturity, good plant type and seed characteristics, and increased indoors. The F₇ progeny rows were bulked and increased indoors for adequate seed for multi-location yield trials in the field commencing in 1994.

A series of yield tests, both narrow-row (23 cm) and wide-row (60 cm), followed from 1994 to 1998 at irrigated and dryland sites across the southern Canadian prairies. Line L94C356 was advanced to the narrow-row part of the Manitoba Dry Bean Cooperative Registration Test in 2001 and 2002. From greenhouse-grown single plants, 50 progeny-rows were increased in southern Idaho in 1997. These were grown in row-plots of 250 g each in 1998. After roguing in the field and visual inspection of the seed, 21 of these progeny rows were bulked and planted again in 2002 in southern Idaho to form the first Breeder seed.

When averaged over the seven narrow-row trials, Early Rose matured in 92 d and yielded 3240 kg ha^–1 compared with a corresponding 111 d and 2480 kg ha^–1 for Viva. Early Rose has the Type IIa, indeterminate growth habit, with strong erect stem and branches and absence of vines (Singh, 1982). Lodging (scored on a 1-to-5 scale, where 1 = upright and 5 = prostrate) at maturity, averaged over seven trials was 2.9 for Early Rose and 4.0 for Viva. Dry seeds of Early Rose and Viva are pink with orange hilar ring. The 100 seed weight of Early Rose averaged 33.0 g over seven sites, which was greater than that of Viva (25.2 g). The cross-section of the pods through the seed, as well as the median longitudinal section of the seeds for Early Rose are elliptic, while those for Viva are narrow elliptic. Early Rose has a pink standard and wings, similar to Viva.

Early Rose is resistant to the yellow and orange strains of bacterial wilt (Hsieh et al., 2003), while the check cultivar Viva is also resistant to the orange strain but only moderately resistant to the yellow strain. Early Rose is resistant to races 1 and 15 of BCMV, while Viva is susceptible. Early Rose is moderately susceptible (40% incidence) to white mold [caused by Sclerotinia sclerotiorum (Lib.) de Bary]. Early Rose is moderately susceptible to the delta race of anthracnose, caused by Colletotrichum lindemuthianum (Sacc. & Magnus) Lams.-Scrib., with a significantly lower severity than either the pink check, Viva, or the susceptible check, Othello, and susceptible to the following races tested: -Brazil, 73, and 1096. Early Rose is susceptible to bean common bacterial blight [caused by Xanthomonas axonopodis pv. phaseoli Starr & Garces 1950 emend. (Vauterin et al., 1995), syn. X. campestris pv. phaseoli (Smith) Dye.], and to rust [caused by Uromyces appendiculatus (Pers.: Pers.) Unger, former syn. U. phaseoli (Pers.) G. Wint. (Hall 1994)], as is the check, Viva.

Breeder Seed of Early Rose is maintained by the AAFC-Research Centre, Lethbridge. Early Rose has been released with seed production and marketing arrangements pending. Small samples of seed of Early Rose may be obtained from the corresponding author for at least 5 years. Application for U.S. Plant Variety Protection is not expected.

ACKNOWLEDGMENTS

The financial support by the Agricore-Bean Business Unit, Alberta Agricultural Research Institute Matching Grant (94M682), Alberta Pulse Growers Commission (95-B1), Manitoba Pulse Growers Association, and by the Agriculture and Agri-Food Canada Matching Investment Initiative is gratefully acknowledged. The authors thank J. Braun, C. Chelle, C.R. Daniels, M. David, M. Mueller, and S. Erickson at Lethbridge and V. Penner and L. Yager at Morden for their technical assistance, as well as the relevant personnel at all cooperating research centers who conducted the official Prairie Bean Coop Registration trials. A special thanks to Dr. Soon Park and Terry Rupert of the Greenhouse and Processing Crops Research Centre (Harrow) of AAFC for screening Early Rose for disease reactions to BCMV and for providing the isolates of the alpha, alpha Brazil and delta races of C. lindemuthianum.

NOTES

LRC Contribution No. 387-03030. Registration by CSSA.

Accepted for publication September 30, 2003.

REFERENCES

• Hall, R. 1994. Compendium of bean diseases. American Phytopathological Society Press. St. Paul, MN.
• Hsieh, T. F., H. C. Huang, H.-H. Mündel, and R.S. Erickson. A rapid indoor technique for screening common bean (Phaseolus vulgaris L.) for resistance to bacterial wilt. Rev. Mex. Fitopatol. 2(3) (in press).
• Singh, S.P. 1982. A key for the identification of different growth habits of Phaseolus vulgaris L. Annu. Rep. Bean Improv. Coop. 25:92–94.
• Vauterin, L., B. Hoste, K. Kersters, and J. Swings. 1995. Reclassification of Xanthomonas. Int. J. Syst. Bacteriol. 45:472–489.[Abstract/Free Full Text]

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