scholarly journals Yield evaluation of varieties from the world collection of birdsfoot trefoil (Lotus corniculatus L.)

2011 ◽  
Vol 48 (No. 6) ◽  
pp. 265-270
Author(s):  
J. Pelikán
Keyword(s):  
Seed Yield ◽  
Lotus Corniculatus ◽  
Field Trials ◽  
Birdsfoot Trefoil ◽  
Local Varieties ◽  
World Collection ◽  
The World ◽  
Herbage Yield ◽  
Second Year ◽  
Good Productivity

In field trials in 1998–2000, ten varieties of the world collection of birdsfoot trefoil (Lotus corniculatus) were evaluated for herbage and hay yields. In all the years of testing yields from three cuttings and total annual production were evaluated. In 1999, seed yield was also recorded. As a control, alfalfa (Medicago sativa) variety was included in the experiment. The test varieties showed good productivity in the first and especially in the second year of testing, most of them exceeded alfalfa in herbage yield in individual cuttings and in total productions. As for hay yield, the differences were not so great. Local varieties showed very good productivity, predominantly in herbage yields. Of foreign varieties, the best herbage, hay and seed yielder was the Hungarian variety Puszta. There were no statistical differences in seed yield between the varieties. The yields were, however, relatively low.

OAC Bright birdsfoot trefoil

1997 ◽  
Vol 77 (2) ◽  
pp. 251-253 ◽  
Author(s):  
B. E. Twamley ◽  
D. T. Tomes ◽  
S. R. Bowley
Keyword(s):  
Key Words ◽  
Seed Yield ◽  
Recurrent Selection ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil ◽  
Science Department ◽  
Seedling Vigour ◽  
Herbage Yield ◽  
Cultivar Description ◽  
Selection For

OAC Bright is a birdsfoot trefoil (Lotus corniculatus L.) cultivar developed by the Crop Science Department, University of Guelph. It was developed by within and among half-sib progeny recurrent selection for seedling vigour and seed yield. OAC Bright has 2% higher seedling vigour and 0.8% higher herbage yield than Leo. It has similar maturity and persistence to Leo. Key words: Birdsfoot trefoil, cultivar description, seedling vigour, seed yield, recurrent selection

Effect of Pollen and Nectar Collecting Honeybees on the Seed Yield of Birdsfoot Trefoil, Lotus Corniculatus L. 1

Crop Science ◽  
1962 ◽  
Vol 2 (2) ◽  
pp. 148-149 ◽  
Author(s):  
K. L. Bader ◽  
S. R. Anderson
Keyword(s):  
Seed Yield ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil

Evaluation of Self and Polycross Progeny Testing in Birdsfoot Trefoil (Lotus corniculatus L.) for Forage and Seed Yield

1987 ◽  
Vol 98 (2) ◽  
pp. 141-148 ◽  
Author(s):  
O. U. Onokpise ◽  
S. R. Boinley ◽  
D. T. Tomes ◽  
B. E. Twamley
Keyword(s):  
Seed Yield ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil ◽  
Progeny Testing

RECURRENT SELECTION FOR SEED YIELD IMPROVEMENT IN LOTUS CORNICULATUS, CULT LEO

1973 ◽  
Vol 53 (4) ◽  
pp. 811-815 ◽  
Author(s):  
G. S. SANDHA ◽  
B. E. TWAMLEY
Keyword(s):  
Seed Yield ◽  
Recurrent Selection ◽  
No Reduction ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil ◽  
Phenotypic Method ◽  
Coefficient Of Variability ◽  
Selection For ◽  
Phenotypic Methods ◽  
Seed Yields

Birdsfoot trefoil (Lotus corniculatus L.), cult Leo, was used as a base population for a recurrent selection program for seed yield. Objectives were: (1) improvement of seed yield, and (2) comparison of a genotypic and a geno-phenotypic method of selection. Two cycles were completed and evaluated. Seed yields for the genotypic and geno-phenotypic methods were 132 and 158%, respectively, of Leo after two cycles of selection. The geno-phenotypic method proved superior to the genotypic after each cycle. The broad sense heritability (61% for cycles 1 and 2), genotypic standard deviation, and genotypic coefficient of variability estimates (16.9 and 15.0% for cycles 1 and 2) indicated no reduction in genotypic variability with the geno-phenotypic method. However, the variability was practically exhausted with the genotypic method after cycle 2. Thus, further improvement with additional cycles of selection should be possible with the geno-phenotypic method but not with the genotypic method.

Harvest management affects yield and persistence of birdsfoot trefoil (Lotus corniculatus L.) in cool summer climates

2004 ◽  
Vol 84 (2) ◽  
pp. 525-528 ◽  
Author(s):  
D. B. McKenzie ◽  
Y. A. Papadopoulos ◽  
K. B. McRae
Keyword(s):  
Dry Matter ◽  
Stand Density ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil ◽  
Harvest Management ◽  
Cool Summer ◽  
Simulated Grazing ◽  
Second Year ◽  
Growing Conditions ◽  
Cool Climate

Two studies determined the effect of birdsfoot trefoil harvest managements on persistence, productivity, and species composition under cool summer growing conditions. Single and double cut managements were harvested at 10, 50, and 100% bloom; triple cuts and simulated grazing were also evaluated. Double cut harvest management produced considerably more dry matter yield (DMY) in the first production year, but its advantage over single cuts in the second year depended on bloom at harvest. Harvesting at 10% bloom for single (and perhaps double) cuts appears to be the best system based on DMY, trefoil content, and stand density. Key words: Lotus corniculatus L., growth stage, stand density, simulated grazing, cool climate

Quackgrass (Agropyron repens) Control in Birdsfood Trefoil (Lotus corniculatus) Seed Production

1989 ◽  
Vol 3 (1) ◽  
pp. 102-104 ◽  
Author(s):  
Dean L. Linscott ◽  
Richard Vaughan
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil ◽  
Subsequent Effect ◽  
Agropyron Repens

Between 1982 and 1986, spring treatments of haloxyfop, fluazifop, and sethoxydim all applied at 400 g ai/ha alone and combined with dalapon at 3400 g ai/ha were evaluated for quackgrass control and subsequent effect on established birdsfoot trefoil seed production. Haloxyfop alone and combined with dalapon were superior to fluazifop or sethoxydim alone or mixed with dalapon for controlling quackgrass and other grass weeds. Birdsfoot trefoil seed yield averages over 3 yr were 310, 160, 150, and 180 kg/ha after treatment with haloxyfop, fluazifop, sethoxydim, and dalapon, respectively, compared to a control yield of 80 kg/ha. Yields were lower, 220 kg/ha, with combinations involving haloxyfop plus dalapon compared to haloxyfop alone.

Measuring gene flow from two birdsfoot trefoil ( Lotus corniculatus ) field trials using transgenes as tracer markers

2003 ◽  
Vol 12 (6) ◽  
pp. 1681-1685 ◽  
Author(s):  
F. De Marchis ◽  
M. Bellucci ◽  
S. Arcioni
Keyword(s):  
Gene Flow ◽  
Lotus Corniculatus ◽  
Field Trials ◽  
Birdsfoot Trefoil

CREE BIRDSFOOT TREFOIL

1981 ◽  
Vol 61 (1) ◽  
pp. 163-165 ◽  
Author(s):  
B. P. GOPLEN ◽  
J. E. R. GREEN-SHIELDS
Keyword(s):  
Seed Yield ◽  
Lotus Corniculatus ◽  
Forage Yield ◽  
Birdsfoot Trefoil ◽  
Research Station ◽  
Western Canada ◽  
Seedling Vigor ◽  
Plant Products

Cree, a new cultivar of birdsfoot trefoil (Lotus corniculatus L.), was developed at the Agriculture Canada research Station in Saskatoon and was issued License No. 1901 by the Plant Products Division of Agriculture Canada on 28 Feb. 1979. It is the first cultivar of birdsfood trefoil bred in Western Canada and was selected mainly for winterhardiness and forage yield. It was extensively tested in Uniform Regional Tests across Western Canada from 1960 to 1975, and was found to be superior to Empire in forage yield, seed yield, and seedling vigor, and superior to Leo in seed yield.

Study on efficiency of some herbicides for fight against weeds in birdsfoot trefoil (Lotus corniculatus L.) seed production

2014 ◽  
Vol 2 (1) ◽  
pp. 42-49
Author(s):  
Boriana Churkova
Keyword(s):  
Population Density ◽  
Seed Production ◽  
Seed Yield ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil ◽  
Experimental Field ◽  
Herbicide Treatment

The study was conducted during the period of 2010-2012 in the experimental field of RIMSA-Troyan on light grey pseudopodsolic soil. The aim of study is to determine the efficiency of herbicides Stratos Ultra (100 g/l cycloxydim) and Pulsar 40 (40 g/l imazamox) and their use in seed production of birdsfoot trefoil. The highest efficiency against weeds showed the treatment of birdsfoot trefoil crops with herbicide Pulsar 40 at a dose of 1200 ml/ha, applied in the year of sowing at the phase of 2-4 leaf of birdsfoot trefoil. The herbicide treatment restricted the opportunity to increase the population density of weeds and led to increase in seed yield by 30.2%. The high seed production under treatment with that herbicide determined also the high values of the structured elements of seed production. In the treatment by herbicide Stratos Ultra high seed production was also realised, which exceeded the control by 8.7% at a dose of 1000 ml/ha and 11.7% at a dose of 2000 ml/ha.

scholarly journals Identification of QTLs for Seed Yield and Yield-Related Traits in Brassica Napus Grown with Contrasting Nitrogen Supplies

2021 ◽  
Author(s):  
Maoyan Zou ◽  
Taoxiong Shi ◽  
Wei Wang ◽  
Guangda Ding ◽  
Fangsen Xu ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Seed Yield ◽  
Field Trials ◽  
Genetic Mechanism ◽  
Yield Traits ◽  
Branch Number ◽  
Significant Qtls ◽  
The World ◽  
N Deficiency ◽  
Pod Number

Abstract Oilseed rape (Brassica napus L.; B. napus) is the main oil crop in China as well as in the world. Nitrogen (N) deficiency significantly reduces the seed yield of B. napus. However, a very few studies involved in the genetic mechanism of seed yield (SY) and SY-related traits of B. napus in response to N deficiency. In this study, plant height (PH), branch number (BN), pod number (PN), seed number (SN), 1000-seed weight (SW) and SY were investigated using a B. napus double haploid (BnaTNDH) population derived from a cross between cultivars ‘Tapidor’ and ‘Ningyou7’ grown at an optimal (ON) and a low N (LN) supplies in three-year field trials. Great variations of SY and related traits were observed in BnaTNDH population under contrasting N supplies. A total of 106 and 110 significant quantitative trait loci (QTLs) were detected for six traits at ON and LN in three field trials, respectively. All of these significant QTLs for the same trait were integrated into 191 consensus QTLs. Nine and eleven consensus QTLs at ON and LN were detected in two or three trials, respectively, and the remaining were environment-specific. One hundred and three unique QTLs were integrated from 191 consensus QTLs, including 29 low N specific QTLs, 35 optimal N specific QTLs and 39 constitutive QTLs. uqA3q was integrated from four consensus QTLs for PN, PH, SN, SY at LN, uqC9f was integrated from consensus QTLs for BN, SY, PN at ON and LN. Both were detected in three trials. This result may help to better understand the genetic mechanism of yield traits in response to low N and promote the breeding of N efficient varieties.

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