SEEDLING GROWTH AND YIELD RESPONSE OF FLAX, BUCKWHEAT, SUNFLOWER AND FIELD PEA AFTER PRESEEDING MAGNETIC TREATMENT

1982 ◽  
Vol 62 (1) ◽  
pp. 61-64 ◽  
Author(s):  
G. H. GUBBELS
Keyword(s):  
Seedling Growth ◽  
Seed Treatment ◽  
Magnetic Treatment ◽  
Field Pea ◽  
Growth And Yield ◽  
Yield Response ◽  
Linum Usitatissimum L ◽  
Magnetic Exposure ◽  
One Year ◽  
Fagopyrum Esculentum Moench

Dry seeds of flax (Linum usitatissimum L.), buckwheat (Fagopyrum esculentum Moench.), sunflower (Helianthus annuus L.) and field pea (Pisum sativum L.) were given brief magnetic exposure prior to germination. Seed of high and low germination potential were grown in petri dishes at 10 and 20 °C. A small number of seed lots produced earlier and more vigorous seedling growth as a result of magnetic treatment, but the differences were small and inconsistent. In the field, there were no improvements in yield from magnetic seed treatment in three out of four years. In one year there was a significant increase in yield for sunflower.

Root-knot Control and Yield Response of Corn with Seed Treatment and Granular Nematicides

2015 ◽  
Vol 16 (4) ◽  
pp. 151-157 ◽  
Author(s):  
Austin K. Hagan ◽  
H. Brad Miller ◽  
Jason Burkett ◽  
Katherine Burch
Keyword(s):  
Seed Treatment ◽  
Growth And Yield ◽  
Yield Response ◽  
Reproduction Rate ◽  
Bacillus Firmus ◽  
Seed Treatments ◽  
Root Knot Nematode ◽  
Plant Populations ◽  
Split Plot ◽  
Study Sites

In Coastal Plain soils of the southeastern United States, the root-knot nematode (RKN) Meloidogyne incognita race 3 causes significant yield loss in corn. Impact of abamectin + thiamethoxam and clothianidin + Bacillus firmus I-1582 nematicide seed treatments along with terbufos granular nematicide on RKN reproduction, plant populations, plant growth, and yield was assessed at two Alabama sites. Thiamethoxam and clothianidin insecticide seed treatments were included as controls. A factorial arranged as split-split plot with year as the main plot, seed treatment as the split plot, and granular nematicide as the split-split-plot treatment was used. Lower plant populations were noted for terbufos-treated corn at one study site. Reduced RKN reproduction was observed with terbufos granular nematicide at both study sites. Fresh seedling weights and yields were usually higher for the terbufos- than non-terbufos-treated corn. At both sites, both nematicide seed treatments and their insecticide seed treatment counterparts had similar plant populations, RKN reproduction rate, and fresh seedling weights. Yield differences were noted at both locations between abamectin + thiamethoxam and thiamethoxam but not clothianidin + Bacillus firmus I-1582 and clothianidin. With mean yield gains up to 13.5%, terbufos was superior to both of the nematicide seed treatments for managing RKN and protecting corn yields. Accepted for publication 19 October 2015. Published 1 November 2015.

EFFECTS OF A BRIEF MAGNETIC EXPOSURE ON CEREAL GERMINATION AND SEEDLING GROWTH

1978 ◽  
Vol 58 (1) ◽  
pp. 79-86 ◽  
Author(s):  
L. V. GUSTA ◽  
K. J. KIRKLAND ◽  
H. M. AUSTENSON
Keyword(s):  
Seedling Growth ◽  
Triticum Aestivum L ◽  
Magnetic Treatment ◽  
Controlled Environment ◽  
Hordeum Vulgare L ◽  
Wild Oats ◽  
Water Imbibition ◽  
Magnetic Exposure ◽  
Seedling Growth Rate ◽  
Triticum Durum Desf

The effects of magnetic treatment (0–4,000 gauss) on dry seeds of wheat (Triticum aestivum L. and Triticum durum Desf.), barley (Hordeum vulgare L.) and wild oats (Avena fatua L.) were investigated under controlled environment conditions. Exposure of dry seeds of wheat, barley and wild oats to a magnetic field had no effect on germination and seedling growth. The emergence rate of Neepawa wheat and Hercules durum was unaffected by exposure of seed to a field strength of 0,375 and 4,000 gauss. However, exposure of barley seeds imbibed for 10 h prior to treatment reduced seedling growth rate. Exposure of dry seeds of barley and wheat to 0 and 375 gauss had no effect on water imbibition or leakage of cellular electrolytes.

Fertilizer responses with non-irrigated Shiraz grapevines, 1944-1966

1970 ◽  
Vol 21 (2) ◽  
pp. 243 ◽  
Author(s):  
HW Tulloch ◽  
WB Harris
Keyword(s):  
South Australia ◽  
Growth And Yield ◽  
Yield Response ◽  
Positive Interaction ◽  
Severe Reduction ◽  
Factorial Trial ◽  
Phosphorus And Potassium ◽  
One Year ◽  
Nitrogen Phosphorus

A long-term factorial trial with nitrogen, phosphorus, and potassium fertilizers was started at Nuriootpa Viticultural Station, South Australia on the grape cultivar Shiraz in 1944. Results show a significant yield response to superphosphate. Long-term applications of ammonium sulphate resulted in severe reduction of vine growth and yield, and a significant lowering of soil pH. No direct response to potassium sulphate was obtained except in one year, but a positive interaction between potassium and phosphorus occurred in some years. An analysis of the components of yield in 1964 showed that the increase in yield with superphosphate was due to an increase in the number of berries per bunch. The nitrogen, phosphorus, and potassium contents of petioles were determined and related to available reference standards.

EFFECTS OF MAGNETIC SEED TREATMENT ON YIELDS OF BARLEY, WHEAT, AND OATS IN SOUTHERN ALBERTA

1977 ◽  
Vol 57 (1) ◽  
pp. 37-45 ◽  
Author(s):  
U. J. PITTMAN
Keyword(s):  
Avena Sativa ◽  
Seed Treatment ◽  
Field Tests ◽  
Triticum Aestivum L ◽  
Magnetic Treatment ◽  
Yield Response ◽  
Appreciable Effect ◽  
Wheat Seed ◽  
Hordeum Vulgare L ◽  
Southern Alberta

Preseeding magnetic treatment of barley seed (Hordeum vulgare L.) resulted in seed yield increases in 13 of 19 field tests in southern Alberta from 1972 and 1975. Similarly, treatment of spring and winter wheat seed (Triticum aestivum L.) resulted in yield increases in 14 of 23 tests. Otas (Avena sativa L.) showed no yield response to magnetic treatment of the seed. Within specified limits, date of treatment before seeding, strength of magnetic field, make or model of the magnetic treater used appeared to have no appreciable effect on the response elicited by the seed and the resultant plant.

Influence of previous crop type on yield of spring wheat: Analysis of commercial field data

1996 ◽  
Vol 76 (3) ◽  
pp. 457-459 ◽  
Author(s):  
Luc Bourgeois ◽  
Martin H. Entz
Keyword(s):  
Field Data ◽  
Triticum Aestivum L ◽  
Field Pea ◽  
Brassica Napus L ◽  
Yield Data ◽  
Linum Usitatissimum L ◽  
Previous Crop ◽  
Crop Type ◽  
Small Plot ◽  
One Year

Although rotational benefits of non-cereal crops have been observed in small plot research trials few quantitative data are available on a field scale. In this study, field data of farmers from the Manitoba Crop Insurance Corporation were analysed to compare yield of wheat (Triticum aestivum L.) following different crops. The yield of wheat following wheat was used as a basis of comparison among crop sequences. The yield data were collected between 1982 and 1993 from fields 64 ha in size, located throughout the province of Manitoba. During this period, the yield of wheat following flax (Linum usitatissimum L.), peas (Pisum sativum L.), and canola (Brassica napus L.), on average was 16%, 11%, and 8% higher, respectively, than wheat following wheat. In one year, the yield of wheat was increased by as much as 41% following a field pea crop. Key words: Crop rotation, barley, canola, flax, field pea, wheat

Growth and yield response of cowpea to multiaction bioinoculants

2016 ◽  
Author(s):  
S. Jidhu Vaishnavi ◽  
P. Jeyakumar
Keyword(s):  
Yield Components ◽  
Seed Treatment ◽  
Dry Matter ◽  
Seed Protein ◽  
Growth And Yield ◽  
Yield Response ◽  
Dry Matter Accumulation ◽  
Physiological Changes ◽  
Seed Protein Content ◽  
Chlorophyll Index

Studies were taken up to estimate the morpho-physiological changes in cowpea due to a multiaction bioinoculants (TagTeam) as seed treatment. Seed treatment with TagTeam @ 8.1g/kg showed significant increase in plant height, root length and number of nodules as compared to control. Physiological parameters such as leaf area, total dry matter accumulation, photosynthetic rate and chlorophyll index were also found higher in seed treatment with TagTeam @ 8.1g/kg. Co-inocultion of Rhizobium and Penicillium (TagTeam) @ 8.1g/kg enhanced the uptake of NPK in cowpea. Available NPK was found non significant with initial soil sample and found maximum with control and lower content in TagTeam seed treatment @ 8.1g/kg. Seed treatment with TagTeam @ 8.1g/kg increased the yield by 13.36 per cent over control and improved yield components and seed protein content in cowpea.

Effect of sublethal dosages of 2,4-D on annual broadleaf crops

1996 ◽  
Vol 76 (1) ◽  
pp. 179-185 ◽  
Author(s):  
David A. Wall
Keyword(s):  
Lens Culinaris ◽  
Field Experiments ◽  
Field Pea ◽  
Brassica Napus L ◽  
Leaf Stage ◽  
Pisum Sativum L ◽  
Application Rates ◽  
Sunflower Crop ◽  
One Year ◽  
Fagopyrum Esculentum Moench

Field experiments were conducted from 1992 to 1994 in southern Manitoba to investigate the tolerance of buckwheat (Fagopyrum esculentum Moench.), canola (Brassica napus L.), field pea (Pisum sativum L.), lentil (Lens culinaris Medik.) and sunflower (Helianthus annuus L.) to sublethal dosages of 2,4-D; 2,4-D amine was applied at 0,9.5, 18.9, 37.8, 75.2 and 151.2 g a.i. ha−1 2 wk after crop emergence when buckwheat and canola were in the two- to three-leaf stage, lentil and field pea had a vine length of 10 cm, and sunflower was in the four- to six-leaf stage. Application rates corresponded to 0, 1.5, 3, 6, 12 and 24% of the low recommended field rate of 2 4-D (630 g a.i. ha−1). Field pea yields were unaffected by 2,4-D dosages tested in any year. Increasing dosage of 2,4-D reduced lentil and canola yields in two of three years, while buckwheat yields were reduced in one year only. Sunflower yields were severely reduced in all three years by 2,4-D. At 151.2 g a.i. ha−1, predicted yield losses were 43% for buckwheat, 16–52% for canola, 20–57% for lentil, and 93–100% for sunflower. Key words: Buckwheat, canola, field pea, lentil, sunflower, crop injury, yield

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