Seeding rate effects on yield components and forage quality of Agaitti Berseem-2002 – an improved variety of berseem clover

Dorval, I., Vanasse, A., Pageau, D. and Dion, Y. 2015. Seeding rate and cultivar effects on yield, yield components and grain quality of spring spelt in eastern Canada. Can. J. Plant. Sci. 95: 841–849. There is currently an increasing demand from master millers for spelt (Triticum aestivum ssp. spelta), but little is known about crop management of spring spelt under the eastern Canadian climate in organic or low-input systems. Field experiments were carried out at three sites in Quebec from 2011 to 2013 to assess the effect of cultivar (CDC Origin, CDC Zorba, CDC Nexon, CDC Silex) and seeding rate (250, 300, 350, 400 and 450 grains m−2) on grain and straw yields, yield components and some grain quality characteristics of spelt. CDC Origin produced higher hulled grain yields at all sites, while CDC Silex produced similar hulled grain yields and achieved the highest naked grain yields at two of the three test sites. The hull content varied from 24.0 to 37.6% among cultivars. CDC Origin had the highest hull content at each site. The seeding rate generally had no effect on yields, but had an effect on yield components; increasing seeding rates slightly increased the number of spikes per square metre and decreased the number of grains per spike, while the 1000-grain weight remained unaffected. Protein content of all cultivars was high (14.2 to 15.4%), while falling number varied from 219 to 385 s.

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Yield Components, Plant Morphology, and Forage Quality of Alfalfa as Influenced by Plant Population 1

Crop Science ◽

10.2135/cropsci1987.0011183x002700020040x ◽

1987 ◽

Vol 27 (2) ◽

pp. 321-326 ◽

Cited By ~ 76

Author(s):

J. J. Volenec ◽

J. H. Cherney ◽

K. D. Johnson

Keyword(s):

Yield Components ◽

Forage Quality ◽

Plant Morphology ◽

Plant Population

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Hulless Barley Seeding Rate Effects on Grain Yield and Yield Components

Crop Science ◽

10.2135/cropsci2008.03.0174 ◽

2009 ◽

Vol 49 (1) ◽

pp. 342-346 ◽

Cited By ~ 20

Author(s):

W. E. Thomason ◽

W. S. Brooks ◽

C. A. Griffey ◽

M. E. Vaughn

Keyword(s):

Grain Yield ◽

Yield Components ◽

Seeding Rate ◽

Hulless Barley ◽

Rate Effects ◽

Yield And Yield Components

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Seeding rate effects in oat-berseem clover intercrops

Canadian Journal of Plant Science ◽

10.4141/p02-130 ◽

2003 ◽

Vol 83 (4) ◽

pp. 769-778 ◽

Cited By ~ 11

Author(s):

S. M. Ross ◽

J. R. King ◽

J. T. O’Donovan ◽

R. C. Izaurralde

Keyword(s):

Avena Sativa ◽

Plant Density ◽

Cropping Systems ◽

Trifolium Alexandrinum ◽

Seeding Rate ◽

Rate Effects ◽

Berseem Clover ◽

Tiller Density ◽

The Relationship ◽

Linear Decline

The sustainability of cereal cropping systems may be improved by the addition of legumes. The effects of seeding rate were studied for intercrops of berseem clover (Trifolium alexandrinum L.) and oats (Avena sativa L.). Bigbee berseem clover, an annual forage legume, was intercropped with oats on a Black Chernozemic soil at Edmonton, Alberta, in 1996 and 1997. Berseem dry matter (DM) yields were greatly reduced by increasing oat plant density. There was a linear decline in berseem DM with increasing oat DM or oat tiller density. The relationship between oat plant density and berseem DM was nonlinear and varied between years and harvests. Berseem yield reductions varied from 44 to 82% with target densities of 100 oat plants m-2. Effects of berseem seeding rate (BSR) on oats varied between years. Increasing BSR from 6 to 24 kg ha-1 decreased oat tillering, oat DM and oat plant DM by 22–51, 0–57 and 8–51%, respectively, and increased oat tiller DM by 0–18%, with oats at 10 to 20 plants m-2. Differences between years were likely due to environmental factors and relative emergence times. After a silage-stage harvest, oat regrowth was negligible but berseem regrowth averaged 3.1 Mg ha-1 DM. Key words: Cereal-legume intercrop, Trifolium alexandrinum L, Avena sativa L, competition models

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