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REGISTRATIONS OF CULTIVARS

Registration of ‘Morden003’ Navy 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
^d Retired Research Scientist, AAFC-Lethbridge

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

‘Morden003’ (Reg. no. CV-215, PI 633619), an early-maturing, anthracnose [caused by Colletotrichum lindemuthianum (Sacc. & Magnus) Lams.-Scrib.] resistant, and with low white mold [caused by Sclerotinia sclerotiorum (Lib.) de Bary] infection, navy bean (Phaseolus vulgaris L.) was developed at the Agriculture and Agri-Food Canada (AAFC) Research Centre, Lethbridge, AB, Canada in cooperation with the AAFC Research Station, Morden, MB, Canada and released in 2003. Morden003 is adapted to Manitoba narrow-row growing conditions, maturing significantly earlier (5 d) than the check cultivar, ‘Envoy’. Registration no. 5603 was issued for Morden003 on 18 Mar. 2003 by the Variety Section, Plant Products Division, Canadian Food Inspection Agency.

Morden003, tested as L94A001, was derived from a complex cross, made in 1987, A8732 = ‘OAC Seaforth’/4/‘Redkloud’/‘Kentwood’/3/Redkloud/Kentwood//‘SwanValley’. Redkloud is a photoperiod insensitive, light red kidney bean from New York, derived from ‘Redkote’/‘Charlottetown’ (Yellow Eye) and registered in 1974 (Wallace and Enriquez, 1980). Kentwood is an early maturing, high yielding navy bean from AAFC-Harrow, Ontario released in 1973 (Anonymous, 1973). Swan Valley is a navy bean of erect, tall indeterminate growth habit with a narrower profile and fewer basal branches than traditional navy bean, from Michigan State Univ., registered in 1986 (Adams et al., 1986); and OAC Seaforth is a Univ. of Guelph Seafarer-backcross-derived navy bean with resistance to the delta race of bean anthracnose, registered in 1983 (Beversdorf and Buzzell 1984).

Cross A8732 was advanced by single seed descent (SSD) through F₄ in the field near Lethbridge. A plant was selected from the F₄ based on plant type, maturity, and seed characteristics, and seed of an F₅ plant was increased indoors, with additional single plant selections made. Modified augmented design (MADDIIa) trials were conducted in the field in 1992 and 1993. A series of wide-row (60 cm) and narrow-row (23 cm) yield tests followed in southern Alberta from 1994 to 1996. L94A001 was advanced to the Narrow-Row Cooperative Registration trials in 1997 where it was similar in maturity and yield to ‘AC Skipper.’ Subsequent tests were performed in southern Manitoba, a region with greater heat units, where navy beans were grown. Fifty single-plant selections from the greenhouse at Morden were grown out at Kimberly, Idaho in 1998 as progeny-rows. Roguing in the field and visual inspection of the seed was performed. Plants suffered considerable micronutrient deficiency at Kimberly resulting in low seed production. In 2002, 35 of 36 progeny plots grown at Kimberly were bulked to form Breeder seed.

When averaged over seven trials, Morden003 matured in 101 d and yielded 2980 kg ha^–1 compared with a corresponding 106 d and 2990 kg ha^–1 for Envoy. Similar to Envoy, Morden003 has a determinate growth habit Type I, with strong erect stem and branches (Schwartz et al., 1996). Lodging (scored on a 1-to-5 scale, where 1 = upright and 5 = prostrate) at maturity, averaged over seven trials was 1.3 for Morden003 and 2.1 for Envoy. Dry seeds of Morden003 and Envoy are white with a medium luster and weak veins. The 100 seed weight of Morden003 averaged 18.5 g over seven sites, which is similar to that of Envoy (18.8 g). Morden003 has a white flower standard and wings, similar to Envoy.

Morden003 is moderately resistant to white mold (23% incidence) compared with Envoy (45% incidence). Morden003 is resistant to the races -Brazil, 173, and race 1096, and moderately resistant to the delta race of anthracnose, whereas Envoy is resistant to all these races. Morden003 has significantly lower levels of infection with the race 1096 than Envoy. Morden003 is resistant to the strain 15 of Beancommon mosaic virus (BCMV, a potyvirus), and variable for resistance to the strain 1, with a necrosis, followed by death of some infected plants. Morden003 and Envoy are 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]. Like Envoy, Morden003 is susceptible to both the yellow and orange strains of bacterial wilt [caused by Curtobacterium flaccumfaciens pv. flaccumfaciens (Hedges) Collins & Jones] (Hsieh et al., 2003). In southern Manitoba in 2002, Morden003 was more susceptible to rust [caused by Uromyces appendiculatus (Pers.: Pers.) Unger, former syn. U. phaseoli (Pers.) G. Wint.] (Hall 1994) than Envoy.

Morden003 has been released on an exclusive basis, through a licensing arrangement with the Agricore–Bean Business Unit (2802-5th Avenue North, Lethbridge, AB, Canada T1H 0P1) from where pedigreed seed may be purchased. Small samples of seed of Morden003 may be obtained from the corresponding author for at least 5 years. Application for U.S. Plant Variety Protection is not expected.

ACKNOWLEDGMENTS

The technical support of J. Braun, C. Chelle, C.R. Daniels, R.S. Erickson, and M. David at The financial support by the Agricore-Bean Business Unit, Alberta Agricultural Research Institute Matching Grant (94M682), Alberta Pulse Growers Commission (95-B1), 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 S. Park and T. Rupert of the Greenhouse and Processing Crops Research Centre (Harrow) of AAFC for screening Morden003 for disease reactions to BCMV and for providing the alpha, alpha Brazil and delta races of C. lindemuthianum.

NOTES

LRC Contribution No. 387-03029. Registration by CSSA.

Accepted for publication September 30, 2003.

REFERENCES

• Adams, M.W., A.F. Saettler, G.L. Hosfield, A. Ghaderi, J.D. Kelly, and M.A. Uebersax. 1986. Registration of ‘Swan Valley’ and ‘Neptune’ navy beans. Crop Sci. 26:1080–1081.[Free Full Text]
• Anonymous. 1973. White beans, II. Fruit and Vegetable Crops. p. 86. Breeding. Res. Branch Rep., Canada Dep. of Agric., Research Station Harrow, ON.
• Beversdorf, W.D., and R.I. Buzzell. 1984. OAC Seaforth field bean. Can. J. Plant Sci. 64:757–758.
• 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).
• Schwartz, H.F., M.A. Brick, D.S. Nuland, and G.D. Franc. 1996. Dry bean production & pest management. Regional Bull. 562A, Colorado State University, University of Nebraska, and University of Wyoming.
• Vauterin, L., B. Hoste, K. Kersters, and J. Swings. 1995. Reclassification of Xanthomonas. Int. J. Syst. Bacteriol. 45:472–489.[Abstract/Free Full Text]
• Wallace, D.H., and G.A. Enriquez. 1980. Daylength and temperature effects on flowering time of photoperiod sensitive and insensitive bean, Phaseolus vulgaris L. J. Am. Soc. Hortic. Sci. 105:583–591.

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