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REGISTRATIONS OF CULTIVARS

Registration of ‘Forager’ Pea

^a Dep. of Plant Sciences, University of Wyoming, Torrington, WY 82240
^b Retired, South Australian Dep. of Agriculture, Adelaide, Australia
^c Dep. of Agronomy and Horticulture, University of Nebraska, Scottsbluff, NE 69363
^d Wyoming Agricultural Experiment Station, Torrington, WY 82801
^e Wyoming Agricultural Experiment Station, Sheridan, WY 82801

^* Corresponding author (jkrall{at}uwyo.edu)

‘Forager’ (Reg. no. CV-22, PI 634508) pea (Pisum sativum L.) is a pure line selection from the Australian landrace pea known as ‘Dundale’ that was selected for survival in the High Plains of eastern Wyoming and western Nebraska (41–43°N; 103–105°W). Forager was developed by the Wyoming Agricultural Experiment Station and jointly released with the Nebraska Agricultural Experiment Station in 2003. Forager (under the name of Wyodun) was evaluated in 15 and five trials conducted in Wyoming and the Nebraska Panhandle, respectively, between 1995 and 2000.

Forager is indeterminate with a long vine type and purple flowers. It has dimpled seed with yellow cotyledons and a green-brown seed coat. Mean 100 seed weight is 22.3 g. Mean grain crude protein, acid detergent fiber, and neutral detergent fiber from four environments in 1995 were 26.6, 7.3, and 9.3%, respectively. Forager was selected from Dundale (ATC 1000), which was an early maturing selection from ‘Early Dun’. Early Dun was probably introduced into Australia from the United Kingdom and has been grown in Australia since the early 1900s. However, the actual origin of Early Dun is unknown. The designation Dundale appeared in Australia in the 1970s and originated from the Department of Agriculture, South Australia. Both Early Dun and Dundale were provided to the University of Wyoming in 1993 free of encumbrances from the South Australian Department of Agriculture. Neither Early Dunn nor Dundale designations were registered as crop cultivars. Upon obtaining seed from South Australia, a planting was made during the summer of 1994 by the Wyoming Agricultural Experiment Station at Torrington, WY. Seed from the surviving plants was collected and cleaned. Off type seed was removed by hand sorting. Further seed purification occurred in 1998 from seed produced at Laramie, WY, before field purification based on purple flower color in 1999 at Powell, WY.

Dry grain yield was evaluated in 20 performance trials from 1995 to 1999 under dryland and irrigated conditions in Wyoming and the Nebraska Panhandle. Forager had a mean dry grain yield of 2020 kg ha^–1 equal to that of Early Dun and out yielded ‘Alma’ and ‘Wirrega’ by 5% and ‘Miranda’ (PI 600943) and ‘Melrose’ (PI 618628) by approximately 25%. Forager is earlier to mature than Early Dun by approximately 4 d, which should give it an advantage in yield reliability, especially in a dry spring. In 1999, maturation was recorded at Archer, WY, where Forager and Early Dun were harvest ready 91 and 95 d after planting, respectively, with Forager out yielding Early Dun by 5%.

Forager was compared with ‘Arvika’ pea for forage production from 2001 to 2003 at a total of four environments. Forager exceeded Arvika in dry matter forage yield by 820 kg ha^–1, 4950 compared with 4130 kg ha^–1. Across three environments over the same period, Forager exceeded ‘Poneka’ forage pea in dry matter forage yield by 930 kg ha^–1, 5470 compared with 4500 kg ha^–1. Forage quality was examined in 2001 and 2002 at two environments. Mean forage crude protein was 21.9, 20.9, and 22.0% for Forager, Poneka, and Arvika, respectively. Mean in vitro dry matter digestibility was 74.1, 73.1, and 76.2% for Forager, Poneka, and Arvika, respectively. Mean acid detergent fiber was 32.1, 33.2, and 29.5% for Forager, Poneka, and Arvika, respectively. Mean neutral detergent fiber was 36.5, 40.7, and 35.8% for Forager, Poneka, and Arvika, respectively. These data indicate that Forager is comparable to Poneka and Arvika in forage quality.

The 1998 seed stock was inspected for Ascochyta spp. and laboratory analysis did not detect the pathogen. Beginning in April 2003, the University of Wyoming, Laramie, WY 82071-3354 entered into a 3-yr license and royalty seed marketing agreement with Legume Logic of Crosby, ND 58730. Small quantities of seed are available free of charge for research purposes by contacting the senior author.

NOTES

Contribution no. JA 1788 from the College of Agriculture, University of Wyoming. Registration by CSSA.

Accepted for publication May 31, 2004.

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