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Registration of ‘Miser’ Field Pea

^a Agriculture and Agri-Food Canada Lacombe Research Centre, 6000 C & E Trail, Lacombe, AB, Canada T4L 1W1
^b Crop Development Centre, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, Canada S7N 5A8
^c Agriculture and Agri-Food Canada, Morden Research Station, Unit 100-101, Route 100, Morden, MB, Canada R6M 1Y5
^d Agriculture and Agri-Food Canada Eastern Cereal and Oilseed Research Centre, K.W. Neatby Building, 960 Carling Avenue, Ottawa, ON, K1A 0C6
^e Agiculture and Agri-Food Canada, Semiarid Prairie Agricultural Research Centre, P.O. Box 1030, Swift Current, SK, Canada S9H 3X2
^f Agriculture and Agri-Food Canada Semiarid Prairie Agricultural Research Centre, Indian Head Research Farm, P.O. Box 760, Indian Head, SK, Canada S0G 2K0
^g Agriculture and Agri-Food Canada, Melfort Research Farm, P.O. Box 1240, Melfort, SK, Canada S0E T4L

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

‘Miser’ (Reg. no. CV-23, PI 634934), a semi-leafless field pea (Pisum sativum L.) with yellow cotyledons, small to medium seed size, and resistance to powdery mildew (caused by Erysiphe pisi DC.), was developed at Agriculture and Agri-Food Canada (AAFC), Morden Research Station (MRS), Morden, Manitoba, Canada. Registration no. 5627 was issued for Miser on 9 April 2003 by the Variety Section, Plant Health and Plant Products Division, Canadian Food Inspection Agency.

Miser was developed from the cross ‘Highlight’/‘Chorale’ made at AAFC, MRS in 1994. Highlight is a semi-leafless, powdery mildew–resistant yellow pea cultivar developed by Svalof-Weibull, Svalov, Sweden, and Chorale is a yellow pea cultivar obtained from Danisco Seeds, Holeby, Denmark. Powdery mildew–resistant F₂ plants were selected in the summer of 1995. The F₃–F₄ was advanced in the greenhouse using single seed descent in the winter of 1995 to 1996. The F₅ was grown at Morden, Manitoba, Canada, in the summer of 1996. A single plant was selected from the F₅ population based on plant type, maturity, and resistance to powdery mildew and designated as 9406046. In the F₆, the line 9406046 was grown at Brawley, CA, during the winter of 1996 to 1997. The F₇ was evaluated in a replicated trial at Morden, Manitoba, Canada in 1997, and the F₈ was evaluated at 6 locations in Manitoba, Saskatchewan, and Alberta, Canada with 2 locations in each province. In 1999, it was evaluated at 5, 4, and 3 locations in Manitoba, Saskatchewan, and Alberta, Canada, respectively. It was tested as entry MP1807 in the Field Pea Cooperative Test-A in 2000 and 2001. Breeder seed of Miser was derived from bulked seed of 125 F₁₂ single plant progenies in 2001.

Miser is adapted to all field pea–growing regions in western Canada. Compared with the check cultivars CDC Mozart, Carrera, and Eclipse over 21 station-years, Miser yielded 4558 kg ha^–1, 3% higher than CDC Mozart and 1% lower than Carrera and Eclipse. Miser matured in 99 d, identical to CDC Mozart, 3 d earlier than Eclipse and 1 d later than Carrera. Plant height of Miser was 77 cm, whereas the plant height of Carrera, Eclipse, and CDC Mozart was 63 cm, 75 cm, and 67 cm, respectively. Average preharvest lodging (PHL) score over 9 site-years was 5.4 for Miser, 4.7 for Carrera, 3.9 for Eclipse, and 5.4 for CDC Mozart based on a 1-to-9 scale (1 = upright, 9 = prostrate).

Using the description of pea morphological characteristics of Khvostova (1983), Miser is described as having white flowers, yellow cotyledons, an opaque seed coat color, and round seeds. The 1000-seed weight was 192 g for Miser compared to 241 g for Carrera, 236 g for Eclipse, and 209 g for CDC Mozart. Percentage seed coat breakage was 2.0 for Miser compared to 5.4 for Carrera, 3.6 for Eclipse, and 2.8 for CDC Mozart. Seed shape, scored on a 1-to-5 scale (1 = spherical, 2.5 = round, 5 = cubed), was 2.5, 2.6, 2.8, and 2.5 for Miser, Carrera, Eclipse, and CDC Mozart, respectively. Crude protein content was 23.8% for Miser compared to 24.2% for Carrera, Eclipse, and CDC Mozart.

For cooking quality, the puree color, scored on a 1-to-5 scale (1 = very good, 5 = poor), was 2.6 for Miser, 3.2 for Carrera and Eclipse, and 2.7 for CDC Mozart. Granulation score (scored on a 1-to-5 scale, 1 = very good, 5 = poor) was 2.7 for Miser, 2.3 for Carrera, and 2.7 for both Eclipse and CDC Mozart. The viscosity was evaluated on a scale of 1 to 24 (1 = very good, 24 = poor). Miser had a viscosity score of 21.7 compared with Carrera (20.8), Eclipse (23.1), and CDC Mozart (21.7).

Miser was resistant to powdery mildew, similar to Eclipse and CDC Mozart, while Carrera was susceptible to powdery mildew. Miser was moderately susceptible to Mycosphaerella blight [Mycosphaerella pinodes (Berk. & Blox.) Vestergr.] with the disease severity score of 7.1, similar to Carrera, Eclipse, and CDC Mozart, which had disease severity scores of 7.4, 6.9, and 7.3, respectively. Disease incidence score of Fusarium wilt [caused by race 2 of Fusarium oxysporum Schl. f. sp. pisi (van Hall) Snyd. & Hans.] was rated at blooming or pod-filling stages. Disease incidence score was 8.4% for Miser, 6.7% for Carrera, 3.2% for Eclipse, and 2.8% for CDC Mozart.

Breeder seed of Miser is maintained at the Agriculture and Agri-Food Canada, Research Farm, Indian Head, Saskatchewan, Canada S0G 2K0. Miser has been released on an exclusive basis through a licensing arrangement with Quality Assured Seeds Inc. (422 McDonald Street, Regina, Saskatchewan, Canada, S4N 6E1), from whom pedigreed seed can be purchased. Small amounts of seed can be obtained from the corresponding author. Plant Breeder's Rights for Miser have been applied for from the Canadian Food Inspection Agency (application no. 03-3473). Application for U.S. Plant Variety Protection is not expected.

ACKNOWLEDGMENTS

The authors greatly appreciate the assistance of our technical staff in the development of Miser and thank the Manitoba Pulse Growers Association, Agri-Food Research Development Initiatives of the Manitoba government, SeCan Association, the Alberta Pulse Commission, and the Matching Investment Initiative program of Agriculture and Agri-Food Canada for their financial support of the development of Miser.

NOTES

Registration by CSSA.

Accepted for publication August 31, 2004.

REFERENCES

• Khvostova, V.V. 1983. Major morphological and ecological peculiarities of peas. p. 12–37. In V.V. Khvostova (ed.) Genetics and breeding of peas. Oxonian Press Pvt. Ltd., New Delhi, India.

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