EFFECT OF DATE AND RATE OF SEEDING, ROW SPACING AND FERTILIZATION ON LENTIL

1989 ◽  
Vol 69 (2) ◽  
pp. 377-381 ◽  
Author(s):  
S. T. ALI-KHAN ◽  
F. A. KIEHN
Keyword(s):  
Seed Size ◽  
Lens Culinaris ◽  
Plant Population ◽  
Row Spacing ◽  
Seeding Rate ◽  
Seeding Date ◽  
Narrow Row ◽  
High Yields

The effect of seeding date, seeding rate, row spacing and fertilizer level were investigated in two cultivars of lentil (Lens culinaris Medik.), Eston and Laird, in Manitoba. High yields were obtained by early seeding, narrow row spacing (15 cm) and high seeding rate (100 plants m−2). Response to fertilizer levels was variable. Early seedings produced larger seeds. Effects of other treatments on seed size were not significant.Key words: Lentil, seeding date, seeding rate, plant population, fertilizer level

Seeding Date, Seeding Rate, and Row Spacing Affect Wheat (Triticum aestivum) and Cheat (Bromus secalinus)

1991 ◽  
Vol 5 (4) ◽  
pp. 707-712 ◽  
Author(s):  
Jeffrey A. Koscelny ◽  
Thomas F. Peeper ◽  
John B. Solie ◽  
Stanley G. Solomon
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Field Experiments ◽  
Wheat Yield ◽  
Row Spacing ◽  
Infestation Level ◽  
Seeding Rate ◽  
Seeding Date ◽  
Bromus Secalinus ◽  
Winter Wheat Yield

Field experiments were conducted in Oklahoma to determine the effects of winter wheat seeding date and cheat infestation level on cultural cheat control obtained by increasing winter wheat seeding rates and decreasing row spacing. Seeding rate and row spacing interactions influenced cheat density, biomass, or seed in harvested wheat (dockage) at two of three locations. Suppressive effects on cheat of increasing wheat seeding rates and reduced row spacings were greater in wheat seeded in September than later. At two other locations, increasing seeding rate from 67 to 101 kg ha–1or reducing row spacings from 22.5 to 15 cm increased winter wheat yield over a range of cheat infestation levels.

EFFECTS OF SEEDING RATE AND ROW SPACING ON AGRONOMIC CHARACTERISTICS OF GLENLEA, PITIC 62 AND NEEPAWA WHEATS

1975 ◽  
Vol 55 (2) ◽  
pp. 363-367 ◽  
Author(s):  
K. G. BRIGGS
Keyword(s):  
Triticum Aestivum ◽  
Unit Area ◽  
Triticum Aestivum L ◽  
Kernel Weight ◽  
Test Weight ◽  
Row Spacing ◽  
Seeding Rate ◽  
Days To Maturity ◽  
Narrow Row ◽  
Plot Design

Three cultivars of wheat (Triticum aestivum L. em Thell.), Glenlea, Pitic 62 and Neepawa, were grown in a seeding rate and row spacing experiment at two locations in 1972 and 1973. In a split-plot design, row spacings of 15, 23 and 30 cm were used as main plots, and subplot seeding rates of 33.6, 67.3 and 100.9 kg/ha were applied for each cultivar. Data were collected on yield, days to maturity, plant height, lodging, kernel weight and test weight. The few significant effects of row spacing indicated that narrow row spacings tend to increase yield and decrease days to maturity. Higher seeding rates per unit area generally resulted in higher yields for all cultivars and, to some extent, earlier maturity. Glenlea wheat seeded at 100.9 kg/ha gave the highest yield in all tests, and at this seeding rate took an average 125 days to reach maturity, compared to 120 days for Neepawa and 129 days for Pitic 62. Seeding rate had virtually no effect on height, kernel weight or test weight of any of the wheats.

Effects of row spacing and plant population on sweet sorghum yield

1984 ◽  
Vol 24 (126) ◽  
pp. 386 ◽  
Author(s):  
PM Martin ◽  
FM Kelleher
Keyword(s):  
Sweet Sorghum ◽  
Dry Matter ◽  
Plant Population ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Row Spacing ◽  
Photosynthetic Productivity ◽  
South Wales ◽  
Narrow Row ◽  
Water Soluble Carbohydrate

Sweet sorghum (Sorghum bicolor) was grown in an irrigated field trial at Richmond, New South Wales, to determine the effects of row spacing (30, 75, and 105 cm) and plant population (8 and 16 plants/m2) on yields of water soluble carbohydrate (WSC) and dry matter. For both plant populations, narrow row spacing resulted in significantly greater dry matter and WSC yield, especially at seed maturity. Total dry matter and WSC yield also increased with increased plant population from 8 to 16 plants/m2. Much of the WSC yield advantage of reduced row spacing was attributed to greater photosynthetic productivity before anthesis, which resulted in higher WSC yield at anthesis and the production of taller, thicker stems, the volume of which was closely related to post-anthesis WSC accumulation

Effet du chiendent sur l'orge ensemencée à différents écartements entre les rangs et doses de semis

1995 ◽  
Vol 75 (3) ◽  
pp. 613-618 ◽  
Author(s):  
D. Pageau ◽  
G. F. Tremblay
Keyword(s):  
Specific Weight ◽  
Kernel Weight ◽  
Yield Reduction ◽  
Row Spacing ◽  
Seeding Rate ◽  
Hordeum Vulgare L ◽  
Spike Density ◽  
Spike Number ◽  
Viable Seeds ◽  
Narrow Row

A 4-yr study was conducted to evaluate the effect of two row spacings (10 and 20 cm) and five seeding rates of the cereal (100, 200, 300, 400 and 500 viable seeds m−2) on the interference between quackgrass [Elymus repens (L.) Nevski] and barley (Hordeum vulgare L. 'Cadette'). Narrow row spacings had no effect on the yield of barley in presence or absence of quackgrass. However, seeding rates influenced the productivity and development of barley when quackgrass was present. At a seeding rate of 100 seeds m−2, the yield reduction caused by the presence of quackgrass was 41%. When barley was seeded at 500 seeds m−2, the yield reduction was 19%. These yield reductions were mainly attributed to a decrease of spike density. In presence of quackgrass, the specific weight, number of kernels per spike, number of spikes per plant, 1000-kernel weight, harvest index and N concentration of grain were reduced. In contrast to a decrease of the row spacing, increasing seeding rate can be used to reduce interference between quackgrass and barley. Key words: Barley, quackgrass, interference, row spacing, seeding rate

Narrow row cotton in the Namoi valley. 2. Plant population and row spacing

1977 ◽  
Vol 17 (84) ◽  
pp. 143 ◽  
Author(s):  
GA Constable
Keyword(s):  
Field Experiments ◽  
Plant Population ◽  
Additional Benefit ◽  
High Yield ◽  
Row Spacing ◽  
Average Yield ◽  
Plant Populations ◽  
Commercial Cultivar ◽  
Early Maturing ◽  
Narrow Row

Field experiments in three seasons examined the effects of plant population and row spacing on the yield of two cotton cultivars. For the early maturing cultivar, Riverina Poplar, 36 cm rows yielded 18 per cent more than 100 cm rows with no additional benefit being obtained from 18 cm rows. The medium maturing commercial cultivar, Deltapine 16, had the same average yield at all row spacings. The effect of plant population on yield was significant in all row spacings, with populations above 40 plants m-2 in 18 cm rows, above 30 plants m-2 in 36 cm rows, and above 13 plants m-2 in 100 cm rows yielding less. In all experiments, narrow rows and high plant populations had smaller bolls, more barren plants and smaller plants than wide rows and low plant populations. At low yield levels, Riverina Poplar in narrow rows was superior to wide rows and to Deltapine 16 in any row spacing. At high yield levels, Deltapine 16 was superior, particularly in wide rows

Narrow row spacing and high plant population to short height castor genotypes in two cropping seasons

2012 ◽  
Vol 35 (1) ◽  
pp. 244-249 ◽  
Author(s):  
Rogério P. Soratto ◽  
Genivaldo D. Souza-Schlick ◽  
Adalton M. Fernandes ◽  
Mauricio D. Zanotto ◽  
Carlos A.C. Crusciol
Keyword(s):  
Plant Population ◽  
Row Spacing ◽  
Cropping Seasons ◽  
Narrow Row

EFFECT OF SEEDING RATE AND HARVEST METHOD ON AGRONOMIC CHARACTERISTICS OF WHITE BEAN

1988 ◽  
Vol 68 (3) ◽  
pp. 801-804 ◽  
Author(s):  
GARY ABLETT
Keyword(s):  
Phaseolus Vulgaris ◽  
Seed Size ◽  
Seed Yield ◽  
Seed Quality ◽  
Phaseolus Vulgaris L ◽  
Seeding Rate ◽  
Agronomic Characteristics ◽  
White Bean ◽  
Narrow Row ◽  
Harvest Method

Kentwood white bean (Phaseolus vulgaris L.) was sown at three seeding rates in narrow rows for 4 yr With direct-harvesting, yields increased as seeding rates increased up to 64 seeds m−2, whereas, with hand-harvesting seed yield was not affected. Seed quality was superior in the direct-harvested plots; however, yield was lower. Seed size was not affected.Key words: White bean, narrow-row, yield, seed quality

scholarly journals ROW SPACING AFFECTS YIELD OF MACHINE-HARVESTED GREEN-MATURE SOUTHERNPEAS

HortScience ◽  
1995 ◽  
Vol 30 (3) ◽  
pp. 438e-439
Author(s):  
Blair Buckley ◽  
Katharine Pee
Keyword(s):  
Linear Response ◽  
Plant Population ◽  
Yield Response ◽  
Mature Stage ◽  
Row Spacing ◽  
Marketable Yield ◽  
Narrow Row

Yield of southernpeas machine-harvested at the green-mature stage generally have not been sufficient for machine-harvest to be profitable. Using narrow row spacings has been proposed to increase yield per hectare. A study was conducted in 1993 and 1994 to examine the effect of row spacing on yield of machine harvested green-mature southernpeas. `Texas Pinkeye' was planted at row spacings of 53, 89, and 107 cm single drilled (SD), and 107 cm double drilled (DD). Marketable yield from the 53-cm row spacing was greater than from the wider row spacings. The yield response was primarily linear. Marketable yield from the DD 107-cm row spacing did not differ significantly from that of the SD 107-cm row spacing. Marketable yield from the DD 107-cm row spacing was less than that from the 53-cm spacing. The plant population per hectare for the two treatments was the same. In 1993, there was a linear response for percentage of pods mature at harvest. The percentage of mature pods was greatest for the 53-cm row spacing.

YIELD PERFORMANCE OF UPRIGHT-LEAVED SELECTIONS OF WINTER WHEAT IN NARROW ROW SPACINGS

1967 ◽  
Vol 47 (5) ◽  
pp. 597-601 ◽  
Author(s):  
N. C. Stoskopf
Keyword(s):  
Winter Wheat ◽  
Spatial Arrangement ◽  
Row Spacing ◽  
Full Potential ◽  
Seeding Rate ◽  
Yield Performance ◽  
Grain Yields ◽  
Row Width ◽  
Check Variety ◽  
Narrow Row

Short-strawed, upright-leaved selections of winter wheat were compared with a tall, droopy-leaved check variety in wide (22.8- and 17.8-cm) and narrow (11.4- and 8.9-cm) row spacings at three seeding rates, to determine the best row width for highest grain yields and to determine whether an entry × row-spacing interaction could be measured. All entries produced more grain from narrow than from wide rows, in both years (1964 and 1966) and at all three seeding rates. This increase averaged 12.6% in the selections and 6.9% in the check variety. Highest yields were obtained at a seeding rate of 134 kg/ha, and in all cases the check variety outyielded the selections. The test demonstrated that higher grain yields were produced by a better spatial arrangement achieved by narrow row spacings, and that yield deficiencies in upright-leaved types could not be compensated for by a heavier seeding rate. While upright-leaved selections showed a greater increase in grain produced than did the check variety, no interaction with row spacings could be obtained statistically. It is suggested that lines which yield as high as check varieties in standard row-spacing tests (wide) may outyield the standard tall, droopy-leaved varieties in narrow rows. Short-strawed, upright-leaved selections emerging from the winter wheat program should therefore be tested in narrow row spacings so that these lines can express their full potential.

Impact of cultivar, row spacing and seeding rate on ascochyta blight severity and yield of chickpea

2007 ◽  
Vol 87 (2) ◽  
pp. 395-403 ◽  
Author(s):  
K. F. Chang ◽  
H. U. Ahmed ◽  
S. F. Hwang ◽  
B. D. Gossen ◽  
R. J. Howard ◽  
...  
Keyword(s):  
Population Density ◽  
Disease Severity ◽  
Seed Yield ◽  
Plant Density ◽  
Ascochyta Blight ◽  
Plant Population ◽  
Row Spacing ◽  
Seeding Rate ◽  
Plant Population Density ◽  
Wide Row Spacing

Field trials to assess the impact of chickpea type (desi vs. kabuli), row spacing and seeding rate on ascochyta blight of chickpea were conducted over 2 yr at Brooks, Alberta. A compound-leaved desi chickpea cultivar and unifoliate kabuli cultivar were sown at 20, 30 and 40 cm row spacing, and at three seeding rates (20, 40 and 60 seeds per 3 m row). Most of the variation in disease severity was associated with differences between the cultivars. Seeding rate, row spacing and their interactions had substantially smaller effects on ascochyta blight in comparison with cultivar effects. Late in the growing season, blight severity was consistently lower in the desi than the kabuli cultivar. Wide row spacing and low seeding rate reduced ascochyta blight severity and increased seed yield per plant. Wide row spacing in the first year reduced the seed yield per hectare, but row spacing did not significantly affect yield in 2005. Low in-row seeding rates increased yield only in 2004. There was a positive linear relationship between plant density and blight severity, and a negative relationship between yield per plant and both plant density and disease severity. We conclude that reduced plant population density could be one tool in a program to manage ascochyta blight of chickpea. Key words: Cicer arietinum, plant population density, ascochyta blight, yield

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