\u27MANSKA\u27 pubescent intermediate wheatgrass [Thinopyrum intermedium subsp. barbulatum (Schur) Barkw. & Dewey] (Reg. no. CV-21, PI 562527) was tested as Mandan 12781 and released 16 April 1992 by the USDA-ARS in cooperation with the USDA-SCS; the Agricultural Research Division, Institute of Agriculture and Natural Resources, University of Nebraska; and the North Agricultural Experiment Station

Anderson, B. E.

Barker, R. E.

Berdahl, J. D.

Haas, R. J.

Karn, J. F.

Klopfenstein, Terry J.

Krupinsky, J. M.

Moore, K. J.

Ray, I. M.

Tober, D. A.

Vogel, Kenneth P.

English

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University of Nebraska - Lincoln 
DigitalCommons@University of Nebraska - Lincoln 
Publications from USDA-ARS / UNL Faculty U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska 
1993 
Registration of 'Manska' Pubescent Intermediate Wheatgrass 
J. D. Berdahl 
USDA-ARS 
R. E. Barker 
USDA-ARS 
J. F. Karn 
USDA-ARS 
J. M. Krupinsky 
USDA-ARS 
I. M. Ray 
USDA-ARS 
See next page for additional authors 
Follow this and additional works at: https://digitalcommons.unl.edu/usdaarsfacpub 
Berdahl, J. D.; Barker, R. E.; Karn, J. F.; Krupinsky, J. M.; Ray, I. M.; Vogel, Kenneth P.; Moore, K. J.; 
Klopfenstein, Terry J.; Anderson, B. E.; Haas, R. J.; and Tober, D. A., "Registration of 'Manska' Pubescent 
Intermediate Wheatgrass" (1993). Publications from USDA-ARS / UNL Faculty. 1901. 
https://digitalcommons.unl.edu/usdaarsfacpub/1901 
This Article is brought to you for free and open access by the U.S. Department of Agriculture: Agricultural Research 
Service, Lincoln, Nebraska at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in 
Publications from USDA-ARS / UNL Faculty by an authorized administrator of DigitalCommons@University of 
Nebraska - Lincoln. 
Authors 
J. D. Berdahl, R. E. Barker, J. F. Karn, J. M. Krupinsky, I. M. Ray, Kenneth P. Vogel, K. J. Moore, Terry J. 
Klopfenstein, B. E. Anderson, R. J. Haas, and D. A. Tober 
This article is available at DigitalCommons@University of Nebraska - Lincoln: https://digitalcommons.unl.edu/
usdaarsfacpub/1901 
CROP REGISTRATIONS 881
Registration of 'Manska' Pubescent
Intermediate Wheatgrass
'MANSKA' pubescent intermediate wheatgrass [Thinopyrum in-
termedium subsp. barbulatum (Schur) Barkw. & Dewey] (Reg.
no. CV-21, PI 562527) was tested as Mandan 12781 and re-
leased 16 April 1992 by the USDA-ARS in cooperation with
the USDA-SCS; the Agricultural Research Division, Institute
of Agriculture and Natural Resources, University of Nebraska;
and the North Agricultural Experiment Station.
Manska, a population derived from 116 parent clones, traces
to PI 116252, a pubescent intermediate wheatgrass accession
presented to the USDA in 1936 by the renowned Russian bot-
anist, N. I. Vavilov (1). Testing of PI 116252 and other in-
termediate wheatgrass introductions was initiated at the USDA-
ARS Northern Great Plains Research Laboratory, Mandan, ND
in 1938 (G. A. Rogler, 1991, personal communication). A
population selected from PI 116252 was designated Mandan
759 pubescent intermediate wheatgrass, an experimental strain
that has had wide commercial use but has never been formally
released as a cultivar (2). The source population for Manska
consisted of 5160 individually spaced plants from 11 different
seed lots of Mandan 759. Plants with pubescent seed heads
varied from 20 to 75% among the 11 seed lots, indicating that
most of the seed lots had been subjected to outcrossing or seed
admixture with glabrous plants in the intermediate wheatgrass
complex. A six-replicate, 120-entry polycross nursery was es-
tablished with plants that were selected from the source pop-
ulation based on their vigor, pubescence, and resistance to leaf-
spot disease caused primarily by Cochliobolus sativus (Ito &
Kuribayoshi) Drechs. ex Dastur. Polycross progenies were
evaluated for resistance to leaf-spot disease, spring recovery,
nutritional quality, and forage and seed yields. Equal quantities
of seed from 116 parent entries in the polycross nursery were
composited to produce the experimental strain Mandan 12781
(Manska) and to establish a breeder seed field. Breeder seed
fields can be reestablished from Syn-1 seed maintained in cold
storage at Mandan.
High nutritive value is the primary advantage of Manska
over current intermediate wheatgrass cultivars. In tests at Man-
dan, Manska averaged significantly higher (P < 0.05) in vitro
digestible organic matter at anthesis than the commonly grown
check cultivar Oahe (620 vs. 563 g kg-1). In vitro dry matter
digestibility at anthesis was significantly (P < 0.05) higher for
Manska than Oahe (590 vs. 573 g kg-1) when averaged over
2 yr and three test sites in Nebraska. At Mead, Nebraska, daily
gains of yearling steers averaged 1.22 and 1.06 kg, respec-
tively, for Manska and Oahe (P < 0.05) over two grazing
periods at a stocking rate of 7.4 steers ha-'. Weight gains
averaged over the two grazing periods were 298 and 257 kg
ha-1, respectively, for Manska and Oahe (P < 0.05). Dry
matter yields averaged over 15 station-years at four test sites
in North Dakota were 4226, 4228, and 4509 kg ha-1, respec-
tively, for Manska, Oahe, and 'Reliant', a 6% advantage (non-
significant) for the recently released cultivar, Reliant (formerly
Mandan 11813). In Nebraska, dry matter yields from eight
station-years at three test sites averaged 5750 and 6050 kg ha-1
for Manska and Oahe, respectively, a 5% yield advantage (non-
significant) for Oahe. Seed yields averaged over 12 station-
years at four test sites in North Dakota and Saskatchewan were
427 and 489 kg ha-1, respectively, for Manska and Reliant, a
13% advantage (P < 0.05) for Reliant. Twenty-seven percent
of the plants from the breeder seed population of Manska had
no pubescence on the seed heads, while the remainder of the
population was rated as 8% heavily, 19% moderately, and 46%
lightly pubescent.
Manska is recommended for pasture and hay in regions of
the northern and central Great Plains where annual precipita-
tion averages more than 350 mm. No data exist on long-term
persistence of Manska under grazing. Based on performance
of other intermediate wheatgrass cultivars, maintenance of
Manska at a high stand density under grazing would likely
require prudent management to assure adequate fall-season re-
covery, especially when stressed from drought or exposed to
high levels of winter stress in the northern Great Plains.
Breeder seed of Manska pubescent intermediate wheatgrass
will be maintained by USDA-ARS, Northern Great Plains Re-
search Laboratory, P.O. Box 459, Mandan, ND 58554. One
generation each of foundation and certified seed beyond breeder
seed is authorized. Foundation seed will be available from the
USDA-SCS Plant Materials Center, P.O. Box 1458, Bis-
marck, ND 58502 and the Foundation Seed Division, Depart-
ment of Agronomy, University of Nebraska, Lincoln, NE 68583.
J. D. BERDAHL,* R. E. BARKER, J. F. KARN,
J. M. KRUPINSKY, I. M. RAY, K. P. VOOEL, K. J. MOORE,
T. J. KLOPFENSTEIN, B. E. ANDERSON, R. J. HAAS,
AND D. A. TOBER (3)


Registration of \u27Manska\u27 Pubescent
Intermediate Wheatgrass

DigitalCommons@University of Nebraska

University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Publications from USDA-ARS / UNL Faculty U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska 1993 Registration of 'Manska' Pubescent Intermediate Wheatgrass J. D. Berdahl USDA-ARS R. E. Barker USDA-ARS J. F. Karn USDA-ARS J. M. Krupinsky USDA-ARS I. M. Ray USDA-ARS See next page for additional authors Follow this and additional works at: https://digitalcommons.unl.edu/usdaarsfacpub Berdahl, J. D.; Barker, R. E.; Karn, J. F.; Krupinsky, J. M.; Ray, I. M.; Vogel, Kenneth P.; Moore, K. J.; Klopfenstein, Terry J.; Anderson, B. E.; Haas, R. J.; and Tober, D. A., "Registration of 'Manska' Pubescent Intermediate Wheatgrass" (1993). Publications from USDA-ARS / UNL Faculty. 1901. https://digitalcommons.unl.edu/usdaarsfacpub/1901 This Article is brought to you for free and open access by the U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Publications from USDA-ARS / UNL Faculty by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Authors J. D. Berdahl, R. E. Barker, J. F. Karn, J. M. Krupinsky, I. M. Ray, Kenneth P. Vogel, K. J. Moore, Terry J. Klopfenstein, B. E. Anderson, R. J. Haas, and D. A. Tober This article is available at DigitalCommons@University of Nebraska - Lincoln: https://digitalcommons.unl.edu/usdaarsfacpub/1901 CROP REGISTRATIONS 881Registration of 'Manska' PubescentIntermediate Wheatgrass'MANSKA' pubescent intermediate wheatgrass [Thinopyrum in-termedium subsp. barbulatum (Schur) Barkw. & Dewey] (Reg.no. CV-21, PI 562527) was tested as Mandan 12781 and re-leased 16 April 1992 by the USDA-ARS in cooperation withthe USDA-SCS; the Agricultural Research Division, Instituteof Agriculture and Natural Resources, University of Nebraska;and the North Agricultural Experiment Station.Manska, a population derived from 116 parent clones, tracesto PI 116252, a pubescent intermediate wheatgrass accessionpresented to the USDA in 1936 by the renowned Russian bot-anist, N. I. Vavilov (1). Testing of PI 116252 and other in-termediate wheatgrass introductions was initiated at the USDA-ARS Northern Great Plains Research Laboratory, Mandan, NDin 1938 (G. A. Rogler, 1991, personal communication). Apopulation selected from PI 116252 was designated Mandan759 pubescent intermediate wheatgrass, an experimental strainthat has had wide commercial use but has never been formallyreleased as a cultivar (2). The source population for Manskaconsisted of 5160 individually spaced plants from 11 differentseed lots of Mandan 759. Plants with pubescent seed headsvaried from 20 to 75% among the 11 seed lots, indicating thatmost of the seed lots had been subjected to outcrossing or seedadmixture with glabrous plants in the intermediate wheatgrasscomplex. A six-replicate, 120-entry polycross nursery was es-tablished with plants that were selected from the source pop-ulation based on their vigor, pubescence, and resistance to leaf-spot disease caused primarily by Cochliobolus sativus (Ito &Kuribayoshi) Drechs. ex Dastur. Polycross progenies wereevaluated for resistance to leaf-spot disease, spring recovery,nutritional quality, and forage and seed yields. Equal quantitiesof seed from 116 parent entries in the polycross nursery werecomposited to produce the experimental strain Mandan 12781(Manska) and to establish a breeder seed field. Breeder seedfields can be reestablished from Syn-1 seed maintained in coldstorage at Mandan.High nutritive value is the primary advantage of Manskaover current intermediate wheatgrass cultivars. In tests at Man-dan, Manska averaged significantly higher (P < 0.05) in vitrodigestible organic matter at anthesis than the commonly growncheck cultivar Oahe (620 vs. 563 g kg-1). In vitro dry matterdigestibility at anthesis was significantly (P < 0.05) higher forManska than Oahe (590 vs. 573 g kg-1) when averaged over2 yr and three test sites in Nebraska. At Mead, Nebraska, dailygains of yearling steers averaged 1.22 and 1.06 kg, respec-tively, for Manska and Oahe (P < 0.05) over two grazingperiods at a stocking rate of 7.4 steers ha-'. Weight gainsaveraged over the two grazing periods were 298 and 257 kgha-1, respectively, for Manska and Oahe (P < 0.05). Drymatter yields averaged over 15 station-years at four test sitesin North Dakota were 4226, 4228, and 4509 kg ha-1, respec-tively, for Manska, Oahe, and 'Reliant', a 6% advantage (non-significant) for the recently released cultivar, Reliant (formerlyMandan 11813). In Nebraska, dry matter yields from eightstation-years at three test sites averaged 5750 and 6050 kg ha-1for Manska and Oahe, respectively, a 5% yield advantage (non-significant) for Oahe. Seed yields averaged over 12 station-years at four test sites in North Dakota and Saskatchewan were427 and 489 kg ha-1, respectively, for Manska and Reliant, a13% advantage (P < 0.05) for Reliant. Twenty-seven percentof the plants from the breeder seed population of Manska hadno pubescence on the seed heads, while the remainder of thepopulation was rated as 8% heavily, 19% moderately, and 46%lightly pubescent.Manska is recommended for pasture and hay in regions ofthe northern and central Great Plains where annual precipita-tion averages more than 350 mm. No data exist on long-termpersistence of Manska under grazing. Based on performanceof other intermediate wheatgrass cultivars, maintenance ofManska at a high stand density under grazing would likelyrequire prudent management to assure adequate fall-season re-covery, especially when stressed from drought or exposed tohigh levels of winter stress in the northern Great Plains.Breeder seed of Manska pubescent intermediate wheatgrasswill be maintained by USDA-ARS, Northern Great Plains Re-search Laboratory, P.O. Box 459, Mandan, ND 58554. Onegeneration each of foundation and certified seed beyond breederseed is authorized. Foundation seed will be available from theUSDA-SCS Plant Materials Center, P.O. Box 1458, Bis-marck, ND 58502 and the Foundation Seed Division, Depart-ment of Agronomy, University of Nebraska, Lincoln, NE 68583.J. D. BERDAHL,* R. E. BARKER, J. F. KARN,J. M. KRUPINSKY, I. M. RAY, K. P. VOOEL, K. J. MOORE,T. J. KLOPFENSTEIN, B. E. ANDERSON, R. J. HAAS,AND D. A. TOBER (3)

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Registration of \u27Manska\u27 Pubescent Intermediate Wheatgrass

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