An Assessment of Sodium‐ and Salt‐Affected Soils in the Northern Great Plains of the USA with EMI

2011 ◽  
Author(s):  
James Doolittle ◽  
Michael Ulmer ◽  
Eric Brevik ◽  
Jeanne Heilig ◽  
John Kempenich
Keyword(s):  
Great Plains ◽  
Northern Great Plains ◽  
The Usa ◽  
Salt Affected Soils

WINTERHARDINESS OF ALFALFA CULTIVARS IN SOUTHERN SASKATCHEWAN

1973 ◽  
Vol 53 (4) ◽  
pp. 773-777 ◽  
Author(s):  
D. H. HEINRICHS
Keyword(s):  
North America ◽  
Medicago Sativa ◽  
Great Plains ◽  
Climatic Conditions ◽  
Northern Great Plains ◽  
Dry Land ◽  
The Third ◽  
The Usa ◽  
Medicago Sativa L

Winter injury occurring at Swift Current, Saskatchewan, was recorded in 17 tests during the period 1962–72. Cultivars developed in the Northern Great Plains Region of the USA and in Canada were generally more winter-hardy than cultivars developed in other regions of North America or in Europe. Cultivars classified as Medicago media Pers. were more winter-hardy than those classified as Medicago sativa L. Very few USA cultivars were more winter-hardy than Vernal, but most Canadian cultivars were. In nonhardy cultivars winter injury never occurred during the first winter, but it often occurred in the second winter and frequently in the third winter. There was considerably more winter injury among alfalfa cultivars on irrigated land than on dry land. Based on results from these tests, 50 cultivars and strains have been classified for relative winterhardiness under climatic conditions in southern Saskatchewan, Canada.

Dry pea (Pisum sativum L.) protein, starch, and ash concentrations as affected by cultivar and environment

2018 ◽  
Vol 98 (5) ◽  
pp. 1188-1198 ◽  
Author(s):  
Yesuf Assen Mohammed ◽  
Chengci Chen ◽  
Maninder Kaur Walia ◽  
Jessica A. Torrion ◽  
Kent McVay ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Great Plains ◽  
Block Design ◽  
Northern Great Plains ◽  
Environment Interaction ◽  
End User ◽  
Pisum Sativum L ◽  
Randomized Complete Block Design ◽  
The Usa ◽  
To Receive

Dry pea (Pisum sativum L.) is an important crop in the Northern Great Plains of the USA and Canada. Information on dry pea quality as affected by cultivars and environments is limited. This experiment determined the effects of dry pea cultivars and environments on protein, starch, and ash concentrations. Six dry pea cultivars (‘Arcadia’, ‘Bridger’, ‘CDC Striker’, ‘Cruiser’, ‘Montech 4152’, and ‘SW Midas’) were evaluated in a randomized complete block design with four replications in 22 environments. The results showed that cultivar × environment interaction effects were highly significant on protein, starch, and ash concentration (p < 0.0001). These interaction means, calculated on a dry matter basis, ranged from 145 to 278 g kg−1 seed for protein, 439 to 617 g kg−1 seed for starch, and 10.5 to 31.9 g kg−1 seed for ash. The differences among environmental means were substantial compared with cultivar means. When averaged over environments, ‘CDC Striker’, ‘Arcadia’, and ‘Montech 4152’ produced greater mean protein, starch, and ash concentrations, respectively, than the other cultivars. None of these cultivars simultaneously outperformed the others for protein, starch, and ash concentrations. This may indicate the need to develop cultivars with outstanding qualities across environments to receive satisfy premium end-user quality requirements.

Valuing new random genetically modified (GM) traits with real options

2015 ◽  
Vol 75 (2) ◽  
pp. 213-229 ◽  
Author(s):  
William Wilson ◽  
Sumadhur Shakya ◽  
Bruce Dahl
Keyword(s):  
Real Options ◽  
Great Plains ◽  
Design Methodology ◽  
Northern Great Plains ◽  
Development Phase ◽  
Content Type ◽  
The Usa ◽  
Gm Traits ◽  
Developmental Phases ◽  
Gm Technology

Purpose – The purpose of this paper is to develop an analytical model to value traits at different developmental phases and to determine the value of drought tolerance (DT) in wheat using GM technology. Design/methodology/approach – A stochastic binomial real-options model of GM traits was developed to estimate the value of a DT wheat trait. Findings – The results indicate that the value of DT wheat using GM technology is in-the-money at each development phase. The greatest value would accrue for the Prairie Gateway and Northern Great Plains regions in the USA. Research limitations/implications – The approach is useful for valuing high-cost risky investments in technology and results provide guidance for development strategies. Originality/value – The model is original and its applications to wheat are unique.

scholarly journals Soil and Land-Use Change Sustainability in the Northern Great Plains of the USA

2020 ◽  
Author(s):  
Deepak R. Joshi ◽  
David E. Clay ◽  
Alexander Smart ◽  
Sharon A. Clay ◽  
Tulsi P. Kharel ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Great Plains ◽  
Northern Great Plains ◽  
The Usa

Evaluation of methods to determine residual soil nitrate zones across the northern Great Plains of the USA

2010 ◽  
Vol 12 (4) ◽  
pp. 594-606 ◽  
Author(s):  
D. Franzen ◽  
D. Long ◽  
A. Sims ◽  
J. Lamb ◽  
F. Casey ◽  
...  
Keyword(s):  
Great Plains ◽  
Northern Great Plains ◽  
Residual Soil ◽  
Soil Nitrate ◽  
The Usa ◽  
Evaluation Of Methods

Growth and forage yield of cowpea and mungbean in the northern Great Plains

1991 ◽  
Vol 71 (3) ◽  
pp. 709-715 ◽  
Author(s):  
A. Boe ◽  
E. K. Twidwell ◽  
K. D. Rephart
Keyword(s):  
Great Plains ◽  
Vigna Unguiculata ◽  
Vigna Radiata ◽  
Plant Density ◽  
Late Summer ◽  
Forage Yield ◽  
Northern Great Plains ◽  
Forage Crops ◽  
Plant Weight ◽  
The Usa

Cowpea [Vigna unguiculata (L.) Walp.] and mungbean [Vigna radiata (L.) Wilczek] are summer-annual legumes which have potential as forages in the northern Great Plains region of the USA during late summer when cool-season grass pastures decline in productivity. The objective of this study was to evaluate forage yield and growth response of these species when grown under different row spacings and planting rates. Victor cowpea and Berken mungbean were planted at 500 000 pure live seeds (PLS) ha−1 in row spacings of 25, 50, and 75 cm at two South Dakota locations in 1987. In 1988 the two species were planted at rates of either 250 000 or 500 000 PLS ha−1 in the same row spacings at three locations. Cowpea produced higher forage yields than mungbean at all locations in both years. Yields of both species decreased with increased row spacing. Species did not differ in plant weight, but plant number per unit of harvested area was greater for cowpea than mungbean. Forage yield was not significantly affected by planting rate at any location in 1988; however, plant weight, leaflets plant−1, and leaf area plant−1 were significantly greater for the low rate, showing that forage yield remained relatively constant across wide variations in plant population. Results indicate that both cowpea and mungbean have potential as summer annual forage crops. However, the consistently higher yield performance of the cowpea cultivar suggests that it was better adapted than the mungbean cultivar to the northern Great Plains region and consequently should be a better forage crop. Key words: Vigna unguiculata (L.) Walp., Vigna radiata (L.) Wilczek, yield, plant density, cowpea, mungbean

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