Natural enrichment of selenium in Saskatchewan field peas (Pisum sativum L.).

2010 ◽  
Vol 90 (4) ◽  
pp. 383-389 ◽  
Author(s):  
D. Thavarajah ◽  
T. Warkentin ◽  
A. Vandenberg
Keyword(s):  
Pisum Sativum ◽  
Key Words ◽  
Field Pea ◽  
Genotypic Differences ◽  
Recommended Daily Allowance ◽  
Pisum Sativum L ◽  
Field Peas ◽  
Daily Allowance ◽  
Pea Seeds ◽  
Natural Enrichment

Pulses are important dietary sources of selenium (Se). Supplying needed Se through widely used foods such as pulses and cereals could increase dietary Se intake. We analyzed the total Se concentration of 17 field pea (Pisum sativum L.) cultivars grown at six locations for 2 yr in Saskatchewan. A significant effect of location was identified, with the highest Se concentration in pea seeds grown in the Saskatoon region and the lowest concentration in the Melfort region. The effect of crop year was not significant. Significant genotypic differences in total Se concentration among the 17 field pea cultivars were not observed in the combined analysis. Total Se concentrations over six locations × 2 yr ranged from 373 to 519 µg kg-1, corresponding to 68-94% of the recommended daily allowance (RDA) for adults based on a 100 g serving of dry field peas. Saskatchewan soils are derived from marine shale and are rich in Se, and pulses grown in Saskatchewan have the potential to provide an excellent natural source of this element. Key words: Selenium, field pea, biofortification

Proximate and mineral composition of field peas

1997 ◽  
Vol 77 (1) ◽  
pp. 101-103 ◽  
Author(s):  
T. D. Warkentin ◽  
A. G. Sloan ◽  
S. T. Ali-Khan
Keyword(s):  
Pisum Sativum ◽  
Key Words ◽  
Mineral Composition ◽  
Seed Yield ◽  
Total Protein ◽  
Field Pea ◽  
Pisum Sativum L ◽  
Field Peas ◽  
Pea Seeds ◽  
Proximate And Mineral Composition

Field pea seeds from 10 cultivars grown at two locations in Manitoba in 1986 and 1987 were analyzed for proximate and mineral profiles. Cultivars differed significantly in their level of total protein, crude fat, ADF, and all minerals tested. However, differences were not extremely large and were comparable to European reports. Location-year also had a significant effect on the levels of total protein, ADF, and all minerals tested. In most cases, the warmest location-year produced relatively higher levels of minerals, ash, and total protein, and lower seed yield than the coolest location-year. Key words: Field pea, Pisum sativum L., mineral

Agassiz field pea

2006 ◽  
Vol 86 (4) ◽  
pp. 1167-1169 ◽  
Author(s):  
Deng-Jin Bing ◽  
Don Beauchesne ◽  
Al Sloan ◽  
Robert Conner ◽  
Yantai Gan ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Pisum Sativum ◽  
Key Words ◽  
Field Pea ◽  
Western Canada ◽  
Seed Shape ◽  
Lodging Resistance ◽  
Pisum Sativum L ◽  
Cultivar Description ◽  
Round Seed

Agassiz is a semi-leafless and powdery mildew resistant field pea (Pisum sativum L.) cultivar with yellow cotyledons, high seed yielding ability, good lodging resistance, round seed shape and medium seed size. It is adapted to field pea growing regions in western Canada. Key words: Field pea, Pisum sativum, cultivar description, yellow cotyledons

Fungicidal control of ascochyta blight of field pea

1996 ◽  
Vol 76 (1) ◽  
pp. 67-71 ◽  
Author(s):  
T. D. Warkentin ◽  
K. Y. Rashid ◽  
A. G. Xue
Keyword(s):  
Pisum Sativum ◽  
Key Words ◽  
Untreated Control ◽  
Seed Weight ◽  
Ascochyta Blight ◽  
Field Pea ◽  
Mycosphaerella Pinodes ◽  
Yield Increase ◽  
Pisum Sativum L

The use of fungicides for the control of ascochyta blight in field pea was investigated. Four fungicides were applied to the cultivars AC Tamor and Radley at two locations in Manitoba in 1993 and 1994. Fungicides were applied either once, twice, or three times at 10-d intervals, beginning at the initiation of flowering. Chlorothalonil and benomyl were effective m reducing the severity of ascochyta blight and increasing the yield and seed weight of field pea. The triple application of chlorothalonil resulted in a mean yield increase of 33% over that of the untreated control. Iprodione and propiconazole were relatively ineffective in controlling ascochyta blight. The percentage of seedborne ascochyta was not significantly affected by fungicide treatments. The severity of ascochyta blight was greater in 1993 that in 1994, resulting in greater benefits of chlorothalonil and benomyl applications in 1993. Key words: Field pea, Pisum sativum L., ascochyta blight, Mycosphaerella pinodes, fungicide

VICTORIA FIELD PEA

1985 ◽  
Vol 65 (3) ◽  
pp. 785-786
Author(s):  
J. E. LANGILLE ◽  
J. A. MacLEOD ◽  
J. S. BUBAR ◽  
R. W. JONES
Keyword(s):  
Pisum Sativum ◽  
Key Words ◽  
Field Pea ◽  
Pisum Sativum L ◽  
Cultivar Description ◽  
Maritime Region

Victoria, a yellow-cotyledon field pea (Pisum sativum L.) cultivar, was licensed in April 1984, will be released to growers in 1986. Victoria is well-adapted to most areas of the Maritime Region, where it outyielded the check cultivars in Regional Cooperative Trials conducted from 1981 to 1983.Key words: Cultivar description, pea (field), Pisum sativum L.

QUALITY, YIELD, AND SEED WEIGHT OF GREEN FIELD PEAS UNDER CONDITIONS OF APPLIED SHADE

1981 ◽  
Vol 61 (2) ◽  
pp. 213-217 ◽  
Author(s):  
G. H. GUBBELS
Keyword(s):  
Light Intensity ◽  
Pisum Sativum ◽  
Protein Content ◽  
Seed Weight ◽  
Field Studies ◽  
Field Pea ◽  
Green Color ◽  
Pisum Sativum L ◽  
Field Peas ◽  
Very High

Field studies were conducted in 1973 and 1974 to evaluate the effects of light intensity on the quality and yield of the green field pea (Pisum sativum L.) ’Triumph’. The treatments included a control with no shading (80 klx) and shading with one (31 klx) or two (9 klx) layers of screen material for a 3-wk period before maturity. Shading resulted in a significant decrease in seed weight and yield and a significant increase in protein content of the seed. The effect of shading on viscosity of the cooked samples was quadratic, implying that viscosity only decreased at very high levels of shading. Shading also tended to reduce loss of green color in the seed cotyledons.

QUALITY, YIELD AND WEIGHT PER SEED OF GREEN FIELD PEAS AS AFFECTED BY SOWING AND HARVEST DATES

1977 ◽  
Vol 57 (4) ◽  
pp. 1029-1032 ◽  
Author(s):  
G. H. GUBBELS
Keyword(s):  
Pisum Sativum ◽  
Sowing Date ◽  
Field Pea ◽  
Green Color ◽  
Protein Percentage ◽  
Pisum Sativum L ◽  
Harvest Dates ◽  
Field Peas ◽  
Significant Difference ◽  
Cooking Yield

The green field pea (Pisum sativum L.) cv. Delwiche Scotch Green was sown at two dates and harvested at five dates in the field in 1971–1973 to determine the effect on quality, yield and weight per seed. The green color deteriorated with delay in harvesting. Rate of color loss varied from year to year, probably due to rainfall patterns. Differences in protein percentage due to sowing date varied from year to year, resulting in no significant difference over the 3-yr period. Viscosity of peas after cooking, yield and weight per seed were higher in the early than in the later sowing.

Indicators for desiccation timing in field pea

1996 ◽  
Vol 76 (2) ◽  
pp. 325-327
Author(s):  
T. D. Warkentin ◽  
A. G. Sloan
Keyword(s):  
Pisum Sativum ◽  
Key Words ◽  
Water Content ◽  
Field Pea ◽  
Pisum Sativum L ◽  
Green Cotyledon ◽  
Seed Water Content

Three visible indicators of seed water content were evaluated to determine the correct time to desiccate field pea. Assessment of the percentage of brown pods, using visual estimates or by counting, were equally effective indicators of seed water content. Counting "dry colored" seeds ("tan" for a yellow cotyledon cultivar; "blue-green" for a green cotyledon cultivar) was less effective. Key words: Field pea, Pisum sativum L., desiccation

Evaluation of coated seeds as a Rhizobium delivery system for field pea

2001 ◽  
Vol 81 (2) ◽  
pp. 247-253 ◽  
Author(s):  
W. A. Rice ◽  
G. W. Clayton ◽  
N. Z. Lupwayi ◽  
P. E. Olsen
Keyword(s):  
Nitrogen Fixation ◽  
Pisum Sativum ◽  
Field Experiments ◽  
Acid Soils ◽  
Field Pea ◽  
Pisum Sativum L ◽  
Field Peas ◽  
Key Words Nitrogen Fixation ◽  
Ph Standard ◽  
Key Words Nitrogen

Greenhouse and field experiments were conducted with field peas (Pisum sativum, L.) in soils of pH 4.4 to 6.8 to determine the best rate of inoculation with rhizobium and to evaluate pre-inoculated (coated) seeds as an alternative to the traditional seed inoculation method of using sticking agents. Inoculation rates higher than 105 cells seed–1 were usually required for high nodulation, nitrogen fixation and grain yields. Therefore, Canadian standards, which require that 105 nodulating rhizobia be delivered per seed for large-seed legumes like peas, may need to be increased. Counts of rhizobia on coated seeds were about 3 log units lower than those on freshly inoculated seeds, but coated seeds significantly outperformed standard seed-inoculated seeds in nodulation and crop yield in acid soils (pH 4.4 and 4.7). However, field pea yields were too low to have commercial value at these low pH levels. In soils with higher pH, standard inoculation resulted in greater nodulation and yield, but the differences were not always significant. It is concluded that the use of coated seeds provides a yield advantage for field pea grown on acid soils, but liming would probably be a better option. Use of coated seeds on other soils will depend on the trade-off between the time and money saved in inoculation in order to seed early and a possible reduction in yield due to insufficient numbers of rhizobia being applied. Key words: Nitrogen fixation, nodulation, Pisum sativum, pre-inoculated seeds

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