Among- and within-population variability for forage yield and Fusarium resistance in birdsfoot-trefoil

Genome ◽  
1987 ◽  
Vol 29 (5) ◽  
pp. 761-764 ◽  
Author(s):  
R. R. Hill Jr. ◽  
K. E. Zeiders
Keyword(s):  
Fusarium Oxysporum ◽  
Genetic Model ◽  
Lotus Corniculatus ◽  
Forage Yield ◽  
Birdsfoot Trefoil ◽  
Source Population ◽  
Gene Frequencies ◽  
Breeding For Resistance ◽  
Population Interaction ◽  
Source Populations

Polycross families of birdsfoot-trefoil, Lotus corniculatus L., were evaluated in the greenhouse for number of live plants 120 days after inoculation with Fusarium oxysporum (Schlecht) Snyd. & Hans, and in the field for forage yield and stand scores. The parents of the polycross progenies came from 11 different birdsfoot-trefoil cultivars. The objective of the experiment was to determine relative importance of source population and parents within source population as sources of variability for reaction for F. oxysporum, forage yield, and stand score. Expected values for means of polycross families within source populations and for source populations were expressed in terms of parameters from a previously developed autotetraploid genetic model. All genetic effects were present in the equations, but variation among source populations would be important only if the source populations differed in gene frequencies. Source populations were the only significant source of variation for the number of live plants 120 days after inoculation with F. oxysporum and the stand score. A significant year by source population interaction was observed for total season yield. The correlation between number of live plants in the greenhouse and the stand score was significant. We concluded (i) selection of source population was important when breeding for resistance to F. oxysporum or improved stand but not for total season yield, and (ii) successful breeding for resistance to F. oxysporum would contribute to improved persistence in birdsfoot-trefoil. Key words: Lotus corniculatus L., Fusarium oxysporum, polycross progeny, selection.

THE EFFECTS OF FUSARIUM WILT AND WEED CONTROL ON SURVIVAL OF BIRDSFOOT TREFOIL

1985 ◽  
Vol 65 (2) ◽  
pp. 329-334 ◽  
Author(s):  
W. M. MURPHY ◽  
A. R. GOTLIEB ◽  
D. T. DUGDALE
Keyword(s):  
Fusarium Oxysporum ◽  
Weed Control ◽  
Seed Production ◽  
Fusarium Wilt ◽  
Clay Soil ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil ◽  
Seeding Rate ◽  
Trifoliate Leaf ◽  
Leaf Stage

Birdsfoot trefoil (Lotus corniculatus L.) seed production is no longer profitable for Champlain Valley farmers, partly because the plants do not grow or persist as well as they did in the past due to a Fusarium wilt disease (Fusarium oxysporum). This study was done to determine the effects of chemical and cultural weed control on birdsfoot trefoil seedlings in a Champlain-Valley clay soil containing Fusarium oxysporum. In a greenhouse experiment, 2,4-DB was applied to birdsfoot trefoil seedlings growing on pasteurized potting mix inoculated with F. oxysporum. When applied at label rate in the second trifoliate-leaf stage, and 14 days later, 2,4-DB increased seedling mortality additively with death due to F. oxysporum. When 2,4-DB was applied 7 days after the second trifoliate-leaf stage, it did not influence seedling survival. Applying 2,4-DB reduced dry weights of tops and roots of surviving seedlings. A field experiment was done on a clay soil (Glossaquic Hapludalf) being used for birdsfoot trefoil seed production and known to contain F. oxysporum. Raised beds were included as a variable to determine effects of improved root-zone drainage. Weeds were controlled by clipping or with 2,4-DB/dalapon postemergent herbicides in two birdsfoot trefoil seeding rates of 16.8 and 3.4 kg seed∙ha−1. The herbicides did not influence seedling death rate. By May of the second year plant populations within a seeding rate were the same, regardless of weed control practice and seedbed preparation.Key words: Dalapon, Fusarium oxysporum, Lotus corniculatus L., 2,4-DB

AC Langille birdsfoot trefoil

1997 ◽  
Vol 77 (4) ◽  
pp. 653-654 ◽  
Author(s):  
Y. A. Papadopoulos ◽  
T. M. Choo ◽  
B. R. Christie ◽  
W. G. Thomas ◽  
D. B. McKenzie ◽  
...  
Keyword(s):  
Lotus Corniculatus ◽  
Forage Yield ◽  
Birdsfoot Trefoil ◽  
Mass Selection ◽  
Original Material ◽  
Seedling Vigor ◽  
Science Department ◽  
Cultivar Description ◽  
Selection For ◽  
The University

AC Langille is a birdsfoot trefoil (Lotus corniculatus L.) cultivar developed by the Nappan Research Farm, Agriculture and Agri-Food Canada. It was developed through two cycles of mass selection for winterhardiness and one cycle of mass selection for seedling vigor. The original material was six distinct germplasms selected from the cultivar Leo and released from the Crop Science Department of the University of Guelph. AC Langille is superior to the check cultivar Leo in forage yield and seedling vigor in Atlantic Canada. Key words: Birdsfoot trefoil, Lotus corniculatus, cultivar description, seedling vigor

Influence of Herbicides on Direct-Seeding Establishment of Birdsfoot Trefoil (Lotus corniculatus) into Grass Sods

Weed Science ◽  
1982 ◽  
Vol 30 (6) ◽  
pp. 567-571 ◽  
Author(s):  
Dean L. Linscott ◽  
Richard H. Vaughan
Keyword(s):  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Rapid Development ◽  
Lotus Corniculatus ◽  
Forage Yield ◽  
Birdsfoot Trefoil ◽  
Herbicide Application ◽  
Vegetation Control ◽  
Application Rates ◽  
Direct Seeded

Birdsfoot trefoil (Lotus corniculatusL.) was direct-seeded into five different grass sods after treatment with dalapon (2,2-dichloropropionic acid), glyphosate [N-(phosphonomethyl)glycine], or paraquat (1,1′-dimethyl-4,4′-bipyridinium ion) at varying rates for vegetation control. During establishment, the stands of birdsfoot trefoil were acceptable in all treated- and untreated-sod grass sods except 1 yr in untreated tall fescue (Festuca arundinaceaSchreb.) and timothy (Phleum pratensisL.) and 1 yr in tall fescue receiving 3 kg/ha of dalapon. Herbicide treatments resulted in a more rapid development of a significant legume component in the sward and an increase in forage yield over the untreated plots. Minimum herbicide application rates for best return for grass sod control were 0.5, 1, and 5 kg/ha respectively for paraquat, glyphosate, and dalapon.

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.

PRIMING AS THE FACTOR OF INCREASE OF EFFICIENCY SEED PRODUCTION OF BIRDSFOOT TREFOIL

2020 ◽  
Author(s):  
Vladimir Zolotarev
Keyword(s):  
Seed Production ◽  
Characteristic Property ◽  
Seed Priming ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil ◽  
Germination Energy ◽  
Field Germination

A characteristic property of legumes is the formation of hard-stone seeds. To use such seeds for sowing, it is necessary to carry out measures to increase their seeding indicators. The article provides an overview of methods of pre-sowing preparation of seeds, priming (Seed Priming). The harvest of Birdsfoot trefoil (Lotus corniculatus L.) can contain up to 90% or more hard-stone seeds. Mechanical priming of hard-stone seeds of Birdsfoot trefoil increases their germination energy and field germination.

SOD-SEEDING BIRDSFOOT TREFOIL IN ESTABLISHED ORCHARDGRASS WITH OVERALL OR BANDED HERBICIDES

1983 ◽  
Vol 63 (1) ◽  
pp. 267-276 ◽  
Author(s):  
R. L. NICHOLS ◽  
R. A. PETERS
Keyword(s):  
Dry Matter ◽  
Dactylis Glomerata ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil ◽  
No Tillage ◽  
Botanical Composition ◽  
Stand Establishment ◽  
Matter Production ◽  
Herbicide Treatments ◽  
Dactylis Glomerata L

Birdsfoot trefoil (Lotus corniculatus L. ’Viking’) was seeded directly into a predominantly orchardgrass (Dactylis glomerata L.) sward following overall or banded applications of paraquat (1,1′-dimethyl-4, 4′-bipyridinium ion, as dichloride salt) or glyphosate [N-(phosphonomethyl)glycine, as isopropylamine salt] to determine the degree of sward control necessary for stand establishment without tillage. Effects of the herbicide treatments and the seeding on botanical composition and dry matter production were determined by a vertical intercept technique and by hand separations of harvests into botanical components. Trefoil establishment was proportional to the degree of sward control during the seeding year. Little trefoil was established by direct seeding without herbicides. The banded herbicide treatments were less effective than overall herbicide applications for trefoil establishment. Trefoil yield obtained following overall application of paraquat was approximately 65% of that obtained following overall glyphosate treatment.Key words: Dactylis glomerata, glyphosate, Lotus corniculatus, herbicide, no-tillage, paraquat

SELF-INCOMPATIBILITY AS AN OUTCROSSING MECHANISM IN BIRDSFOOT TREFOIL (LOTUS CORNICULATUS)

1966 ◽  
Vol 46 (4) ◽  
pp. 411-418 ◽  
Author(s):  
R. K. Miri ◽  
J. S. Bubar
Keyword(s):  
Genetic Markers ◽  
Lotus Corniculatus ◽  
Commercial Production ◽  
Birdsfoot Trefoil ◽  
Self Incompatibility ◽  
Compatible Pollen ◽  
Double Cross

Studies using pubescence and cyanogenesis as genetic markers indicate that a high proportion of self-seed is set when selfing is followed by pollinations with mixtures of self- and cross-pollen. Also, considerable selective fertilization occurs when pollination is with mixtures of compatible pollen. It is suggested that the incompatibility mechanism may be used for commercial production of "double-cross hybrids" of trefoil.

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