YIELD, SEED WEIGHT AND PROTEIN CONTENT OF FIELD PEAS AFTER SOIL AND FOLIAR TREATMENTS OF SIMAZINE AT SUBLETHAL LEVELS

1979 ◽  
Vol 59 (1) ◽  
pp. 253-255
Author(s):  
G. H. GUBBELS
Keyword(s):  
Pisum Sativum ◽  
Protein Content ◽  
Seed Yield ◽  
Seed Weight ◽  
Clay Soil ◽  
Soil Surface ◽  
Clay Loam ◽  
Sandy Clay Loam ◽  
Pisum Sativum L ◽  
Field Peas

Simazine [2-chloro-4,6-bis(ethylamino)-s-triazine] was applied at rates of 0.002–0.800 kg a.i./ha to field peas (Pisum sativum L.) as soil and as foliar applications for 4 yr. Band applications to the soil surface over the seeded rows and incorporated beside the seeded rows in a clay soil had no effect on seed yield or protein content. However, seed yield was increased 25% in the year that seeding was early (3 May) in a fine sandy clay loam, and seed placed into the center of a band into which simazine at 0.4 kg a.i./ha had been rototilled to a depth of 10–12 cm. There were no differences in weight per seed or protein content. Foliar applications were not effective.

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.

SEED YIELD, SEED WEIGHT, PERCENT PROTEIN AND PROTEIN YIELD OF FIELD PEAS AS AFFECTED BY SEEDING DATES

1977 ◽  
Vol 57 (1) ◽  
pp. 17-20 ◽  
Author(s):  
S. T. ALI-KHAN
Keyword(s):  
Pisum Sativum ◽  
Seed Yield ◽  
Seed Weight ◽  
Unit Area ◽  
Weight Percent ◽  
Protein Yield ◽  
Pisum Sativum L ◽  
Field Peas ◽  
Percent Protein ◽  
High Yields

The effects of seeding dates on yield, seed weight, percent protein and protein yield of field peas (Pisum sativum L.) were determined by seeding four cultivars at five dates from 1970 to 1973 at two locations in Manitoba. Early seeding resulted in higher yields and heavier seeds. Protein content was lower in early-seeded peas, but the protein yield per unit area was higher than the late-seeded peas. In Manitoba, field peas should be seeded before the 1st of June to obtain high yields of both seed and protein.

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

EFFECTS OF NITROGEN AND MOISTURE ON YIELD AND PROTEIN IN FIELD PEAS

1974 ◽  
Vol 54 (2) ◽  
pp. 301-305 ◽  
Author(s):  
L. A. McLEAN ◽  
F. W. SOSULSKI ◽  
C. G. YOUNGS
Keyword(s):  
Protein Content ◽  
Seed Yield ◽  
Soil Nitrogen ◽  
Nitrogen Fertilization ◽  
Seed Weight ◽  
Cultivar Differences ◽  
Plant Weight ◽  
Field Peas ◽  
Wide Range ◽  
Moisture Conditions

When averaged over a wide range in soil nitrogen and moisture conditions, cultivar differences in yield and protein content of non-inoculated field peas (Pisum sativum L.) were relatively small. The inherent differences in seed weight were responsible for most of the variations in yield among the three cultivars. Nitrogen fertilization in the growth room experiment markedly increased plant weight, seed yield and protein content, and water-use efficiency was substantially improved. When maintained within the upper half of the available range, soil moisture supply had only a limited influence on plant growth. Periodic wilting did cause a severe reduction in plant weight and seed yield, but there was little change in protein content. For these fertilizer and moisture treatments, responses in seed yield were primarily due to changes in number of pods per plant; the seeds per pod and seed weight were relatively stable. It appeared that field peas were efficient converters of soil nitrogen to seed protein and, in the absence of nitrogen-fixing bacteria, nitrogen fertilization was the principal factor influencing the protein content of field peas. The correlation coefficient between yield and protein content was very low.

Fungicidal control of powdery mildew in field pea

1996 ◽  
Vol 76 (4) ◽  
pp. 933-935 ◽  
Author(s):  
T. D. Warkentin ◽  
K. Y. Rashid ◽  
A. G. Xue
Keyword(s):  
Powdery Mildew ◽  
Pisum Sativum ◽  
Seed Yield ◽  
Seed Weight ◽  
Field Trials ◽  
Field Pea ◽  
Susceptible Cultivar ◽  
Erysiphe Pisi ◽  
Pisum Sativum L ◽  
Disease Pressure

The efficacy of sulfur (Kumulus S) and myclobutanil (Nova 40W) fungicides for control of powdery mildew (Erysiphe pisi Syd) in field pea (Pisum sativum L.) was investigated in field trials at two locations in Manitoba in 1994 and 1995. Both fungicides were effective in reducing disease seventy and increasing seed yield and seed weight of the susceptible cultivar Radley. Fungicide treatments were economically beneficial when disease pressure was high. Key words: Field pea, Pisum sativum L., powdery mildew, Erysiphe pisi Syd., sulfur, myclobutanil

Field pea seeding management

2002 ◽  
Vol 82 (4) ◽  
pp. 639-644 ◽  
Author(s):  
A. M. Johnston ◽  
G. W. Clayton ◽  
G. P. Lafond ◽  
K. N. Harker ◽  
T. J. Hogg ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Seed Yield ◽  
Seed Weight ◽  
Field Pea ◽  
Yield Potential ◽  
Row Spacing ◽  
Seeding Rate ◽  
Pisum Sativum L ◽  
Seed Placement ◽  
The Impact

The impact of seed placement and seeding rate on crop yield is not clearly understood for field pea (Pisum sativum L.). A field experiment was conducted at Melfort, SK, and Lacombe, AB, in 1998 and 1999, to evaluate the effect of three seed placements (distinct row: 23 cm and 30 cm with a hoe opener; and spread band: a 20-cm spread using a 28-cm sweep on a 23-cm row spacing) and three seeding rates (50, 100, and, 150 seeds m-2) on pea seedling density, seed yield and seed weight of a leafy prostrate and semi-leafless upright cultivar. A follow-up experiment was conducted at seven sites across Saskatchewan in 2001 to further examine the influence of a wider range of seeding rates (20, 30, 40, 50, 60, 70, 80, 90, 100, and 120 target plants m-2). Pea productivity for both cultivars was not affected by the different seed placements, despite a 4 mg greater seed weight for distinct row seed placements compared with spread band placement across all 1998–1999 sites. Moreover, the absence of a seed placement by seeding rate interaction indicated that greater spacing between plants was not associated with improved pea yield when seeding rate was increased, regardless of the cultivar. Yield component compensation occurred where increased plant density from higher seeding rates reduced seed weight. In the 2001 study, seed yield benefits were small at seeding rates greater than 50 target plants m-2. There was a tendency for lower yields with seeding rates less than 50, especially at sites with higher yield potential. Yields of field peas grown under relatively weed-free conditions should be optimized with a seeding rate of 50 to 75 seeds m-2. Key words: Pea (Pisum sativum L.), plant arrangement, row spacing, opener type, seeding rate

COOKING QUALITY, YIELD AND SEED WEIGHT OF FIELD PEAS AS AFFECTED BY IRRIGATION, NITROGEN, PHOSPHORUS AND HARVEST DATE

1982 ◽  
Vol 62 (4) ◽  
pp. 893-899 ◽  
Author(s):  
G. H. GUBBELS ◽  
S. T. ALI-KHAN ◽  
B. B. CHUBEY ◽  
M. STAUVERS
Keyword(s):  
Soil Moisture ◽  
Pisum Sativum ◽  
Field Study ◽  
Seed Weight ◽  
Cooking Quality ◽  
Field Pea ◽  
Harvest Date ◽  
Pisum Sativum L ◽  
Field Peas ◽  
Nitrogen Phosphorus

The yellow-seeded field pea (Pisum sativum L. ’Century’) was grown at two levels of soil moisture, two levels of N and P and harvested at four dates in a 3-yr field study to determine the effects of these factors on cooking quality as indicated by the color, weight and viscosity of the puree of cooked samples. Nitrogen lowered cooking quality where yields were not improved but maintained quality when yield was increased. Phosphorus applications improved yield and cooking quality, with highest improvements in yield coinciding with greatest improvements in quality. Harvesting too early or too late resulted in lower cooking quality.

Estimation of correlation coefficient among yield and attributing traits of field pea (Pisum sativum L.)

2017 ◽  
Author(s):  
Sandeep Kumar Singh ◽  
Vinit Pratap Singh ◽  
Seweta Srivastava ◽  
Amresh Kumar Singh ◽  
Brijesh Kumar Chaubey ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Seed Yield ◽  
Seed Weight ◽  
Positive Association ◽  
Field Pea ◽  
Positive Direction ◽  
Pisum Sativum L ◽  
Days To Maturity ◽  
100 Seed Weight ◽  
Number Of Seeds

In order to best exploit the available genetic wealth in the crop, the information would have paramount important. Therefore, this study was conceived to examine the variability and determines the relative importance of primary and secondary traits as selection criteria to improve productivity. Field pea (Pisum sativum L. var. arvense) is amongst the most important legume crop of India. The experimental material comprised of 120 field pea germplasm including 40 indigenous and 10 exotic collections of pea and 4 check varieties viz., HUDP-15, HFP-4, HUP-2, Rachna. Five competitive plants from each plot were randomly selected for recording observations for all the quantitative characters except days to 50 per cent flowering and days to maturity, which were recorded on line basis. In present study a strong and positive association of seed yield per plant observed with harvest index, biological yield per plant, plant height, number of seeds per pod, number of primary branches per plant, number of pods per plant and 100-seed weight. Days to maturity and number of seeds per pod showed positive correlation with days to 50 per cent flowering and number of primary branches per plant respectively. Days to maturity and 100-seed weight and number of pods per plant showed weak association with seed yield per plant in positive direction. Thus, these characters emerged as most vital component traits and associated positively with seed yield per plant.

PREHARVEST DESICCATION OF GREEN-SEEDED FIELD PEAS WITH DIQUAT

1982 ◽  
Vol 62 (3) ◽  
pp. 555-560 ◽  
Author(s):  
G. H. GUBBELS
Keyword(s):  
Pisum Sativum ◽  
Protein Content ◽  
Seed Size ◽  
Yield Loss ◽  
Cooking Quality ◽  
Quality Characteristics ◽  
Spray Application ◽  
Green Color ◽  
Pisum Sativum L ◽  
Field Peas

Diquat treatments were applied to green-seeded field peas (Pisum sativum L.) over a 5-yr period to determine the effect of applications at various stages of maturity on some agronomic and quality characteristics. The spray application effectively hastened drying of the plants, eliminating the need for windrowing. The rate of 0.28 kg a.i./ha was adequate. The earlier harvesting permitted by the treatments reduced loss of green color and germinability associated with weathering and reduced yield loss from shattering. Applications made as early as the 50% brown pod stage did not markedly affect yield, protein content, seed size, cooking quality or germinability. However, a later stage of spraying may be advisable under conditions of slow maturation.

scholarly journals Seed Diversity of Indigenous Field Peas (Pisum sativum L.) Germplasm Collection in Oman

2018 ◽  
Vol 10 (11) ◽  
pp. 523
Author(s):  
Nadiya A. Al-Saady ◽  
Saleem K. Nadaf ◽  
Ali H. Al-Lawati ◽  
Saleh A. Al-Hinai
Keyword(s):  
Pisum Sativum ◽  
Seed Weight ◽  
Seed Color ◽  
Seed Traits ◽  
Seed Length ◽  
Pisum Sativum L ◽  
Field Peas ◽  
Dark Green ◽  
Light Green ◽  
100 Seed Weight

Pea (Pisum sativum L.) is a field crop cultivated in most countries of the Arabian Peninsula for both food and fodder consumption during winter. This paper presents the results of indigenous germplasm collections in Oman and assessment of their seed diversity. 27 seed samples/accessions of field peas were collected during collecting missions of indigenous legume crops from 2008 to 2011. South Batinah-coastal governorate represented by Rustaq (15) had the highest, followed by Dhahira & Buraimi governorates (8), Al-Dakhliya (Interior) governorate (2), Sharqiya (eastern) governorate (1) and North Batinah-coastal governorate (1). Seed accessions were found diverse for three seed traits and seed color. Seed length varied from 0.305 cm to 0.720 cm whereas seed width varied from 0.295 cm to 0.690 cm. 100-seed weight ranged from 4.500 g to 21.9 g. With respect to seed color, six accessions viz. Collection No. 25 (tan-light), No. 78 (dark green, mottled), No. 82 (light green), No. 173 (dark green, dark brown, mottled), No. 178 (brownish green, mottled) and No. 314 (cream, light pink) were homogenous (pure) whereas the remaining 21 seed accessions were heterogeneous (mixture) with various colors such as white cream, cream, light green, tan, light brown, dark brown and black with mottled nature. The collections were grouped into 10 genetically diverse clusters based on the Principal Component Analysis (PCA) using seed traits which revealed significant contribution of seed length (34.378%) and 100-seed weight (34.182%) to the total variation existing in indigenous field pea germplasm collected across all the governorates of Oman.

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