Inheritance of glyphosate resistance in Lolium perenne and hybrids with Lolium multiflorum

2015 ◽  
Vol 71 ◽  
pp. 72-78 ◽  
Author(s):  
Marcos Yanniccari ◽  
Carolina Istilart ◽  
Daniel O. Giménez ◽  
Ana M. Castro
Keyword(s):  
Lolium Perenne ◽  
Lolium Multiflorum ◽  
Glyphosate Resistance

scholarly journals Strategies to manage the evolution of glyphosate resistance in New Zealand

2016 ◽  
Vol 69 ◽  
pp. 252-257 ◽  
Author(s):  
K.C. Harrington ◽  
T.K. James ◽  
M.D. Parker ◽  
H. Ghanizadeh
Keyword(s):  
New Zealand ◽  
Weed Control ◽  
Lolium Perenne ◽  
Perennial Ryegrass ◽  
Lolium Multiflorum ◽  
Resistance Management ◽  
Glyphosate Resistance ◽  
Italian Ryegrass ◽  
Fruit Crops ◽  
Sustainable Farming

The first cases of weeds developing resistance to glyphosate within New Zealand have recently been reported and investigated Both perennial ryegrass (Lolium perenne) and Italian ryegrass (Lolium multiflorum) populations have become resistant to glyphosate in several Marlborough vineyards due to many years of weed control using mainly just glyphosate Glyphosate is currently being used in many situations throughout New Zealand that could easily lead to further resistance developing such as in other perennial fruit crops on roadsides railways amenity areas waste areas fence lines and headlands of crops Following wide consultation as part of a Sustainable Farming Fund project strategies for resistance management in three systems (vineyard and orchards amenity and waste areas and crops and pastures) are suggested Adoption of these strategies will allow glyphosate to continue as a useful herbicide in New Zealand

scholarly journals Confirmation of glyphosate resistance in two species of ryegrass from New Zealand vineyards

2013 ◽  
Vol 66 ◽  
pp. 89-93 ◽  
Author(s):  
H. Ghanizadeh ◽  
K.C. Harrington ◽  
T.K. James ◽  
D.J. Woolley
Keyword(s):  
New Zealand ◽  
Lolium Perenne ◽  
Perennial Ryegrass ◽  
Lolium Multiflorum ◽  
Glyphosate Resistance ◽  
Italian Ryegrass ◽  
Two Populations

Plants were obtained from two populations of Italian ryegrass (Lolium multiflorum) and three populations of perennial ryegrass (Lolium perenne) from different vineyards in Marlborough and Nelson that were suspected of being resistant to glyphosate following many consecutive applications of this herbicide over recent years Each population was multiplied by splitting out tillers and this was also done for plants taken from a population of each species from Manawatu pastures where they had not been exposed to glyphosate application A doseresponse experiment showed that four populations taken from the vineyards were about 10 times as resistant to glyphosate as those plants that had not been previously exposed to the herbicide The experiment was repeated and showed one perennial ryegrass population to have a 30fold level of resistance These are the first confirmed cases of glyphosate resistance within New Zealand

Inflorescence development and seed production in Lolium spp. × Festuca pratensis tetraploid hybrids

1975 ◽  
Vol 85 (2) ◽  
pp. 301-307 ◽  
Author(s):  
P. Cremades ◽  
E. W. Bean
Keyword(s):  
Seed Production ◽  
Lolium Perenne ◽  
Lolium Multiflorum ◽  
Pollen Viability ◽  
Festuca Pratensis ◽  
Inflorescence Development ◽  
Tetraploid Hybrid ◽  
Pollen Release ◽  
Sufficient Variation ◽  
Reproductive Characters

SUMMARYThe reproductive development and seed production characters of a Lolium multiflorum × Festuca pratensis tetraploid hybrid and a Lolium perenne × Festuca pratensis tetraploid hybrid were compared with those of their tetraploid parental cultivars. Experiments were carried out under glasshouse and natural conditions; single plants were studied as only small quantities of seed were available from the breeder. The lowtemperature/short-day requirements for inflorescence induction of the two hybrids were in between those of the corresponding parental species. The variance of the date at which vegetative primordia changed to the reproductive condition was greater in the hybrids than in the parental cultivars, but the variance of the dates of inflorescence emergence were similar for the hybrids and parental cultivars. Inflorescences ranged from the Lolium type with only sessile spikelets to the Festuca type with primary branches. Inner glumes, which are absent in the Lolium parents but present in Festuca pratensis, were found in the hybrids, though not in all spikelets. In the Lolium perenne × Festuca pratensis hybrid pollen release, potential pollen viability and floret fertility were low, but the Lolium multiflorum × Festuca pratensis hybrid produced large amounts of pollen with a higher potential viability and had floret fertilities similar to those of its two parental cultivars. There was sufficient variation in reproductive characters for further selection, particularly in the Lolium perenne × Festuca pratensis hybrid.

Anther Culture of Lolium Perenne and Lolium Multiflorum

1990 ◽  
pp. 105-127 ◽  
Author(s):  
I. Bante ◽  
T. Sonke ◽  
R. F. Tandler ◽  
A. M. R. van den Bruel ◽  
E. M. Meyer
Keyword(s):  
Anther Culture ◽  
Lolium Perenne ◽  
Lolium Multiflorum

DIFFERENTIAL HOSTS AND NEW HOST RECORDS FOR FIVE GRASS VIRUSES

1961 ◽  
Vol 41 (1) ◽  
pp. 211-216 ◽  
Author(s):  
J. T. Slykhuis
Keyword(s):  
Lolium Perenne ◽  
Lolium Multiflorum ◽  
Dactylis Glomerata ◽  
New Host ◽  
Agropyron Smithii ◽  
Lolium Perenne L ◽  
Orchard Grass ◽  
Differential Hosts ◽  
Dactylis Glomerata L ◽  
New Host Records

A number of cereals and other grasses were compared as hosts for different isolates of viruses causing Agropyron mosaic (AMV), wheat streak mosaic (WSMV), barley stripe mosaic (BSMV), ryegrass mosaic (RMV) and orchard grass mosaic (OMV). Lolium multiflorum L. was susceptible to all the viruses. The four varieties of wheat tested were highly susceptible to AMV, WSMV and BSMV, but not to RMV or OMV. Clintland oats was susceptible to WSMV, RMV and OMV but not to AMV or BSMV. Lolium perenne L. and Dactylis glomerata L. were infected by RMV and OMV only, Agropyron repens L. Beauv. by AMV only, and Setaria italica L. Beauv. by BSMV only. Brant and Husky barley were slightly susceptible to AMV, but seven other varieties appeared immune. Unusual host records include the infection of Setaria lutescens (Weigel) Hubb. and one plant of Agropyron smithii Rydb. with WSMV, and the infection of Agropyron intermedium (Host) Beauv. with BSMV. A list of differential hosts is proposed.

Nutritional Value Change during Processing Forage Block from Under-Forest Interplanting Lolium Perenne

2014 ◽  
Vol 1073-1076 ◽  
pp. 1849-1853
Author(s):  
Li Li Chen ◽  
Yan Feng ◽  
Dang Quan Zhang ◽  
Ying She Luo ◽  
Rong Chen ◽  
...  
Keyword(s):  
Lolium Perenne ◽  
Nutritional Value ◽  
Lolium Multiflorum ◽  
Nutrient Content ◽  
Mineral Nutrients ◽  
Value Change ◽  
Optimal Ratio ◽  
Illicium Verum ◽  
Calcium And Phosphorus ◽  
The One

In order to make use of the under-forest economy, Lolium perenne were interplanted under the trees, and the effect of coarse fodder processing on the nutrient content of under-forest interplanting Lolium perenne was analyzed. The result showed that the contents of calcium and phosphorus of under-forest interplanting Lolium perenne were 0.79% and 0.119%, while those of forage blocks processed were 0.82% and 0.115%, and the one starch-added were 0.74% and 0.125%, respectively. The calcium contents were 0.51%, 0.67% and 0.76% when the ratio of Lolium multiflorum/ Illicium verum were 100:1, 200:1 and 300:1 in the processed forage blocks, and the phosphorus contents were 0.121%, 0.123% and 0.127%, respectively. The results suggested that the coarse fodder processing and additive have no obvious influence on the mineral nutrients of Lolium perenne during forage block processing, and the optimal ratio of Lolium perenne/ Illicium verum is 300:1 in the forage.

scholarly journals Non‐target‐site mechanism of glyphosate resistance in Italian ryegrass ( Lolium multiflorum )

2018 ◽  
Vol 18 (3) ◽  
pp. 127-135 ◽  
Author(s):  
Kohei Kurata ◽  
Yuki Niinomi ◽  
Yoshiko Shimono ◽  
Masahiro Miyashita ◽  
Tohru Tominaga
Keyword(s):  
Lolium Multiflorum ◽  
Glyphosate Resistance ◽  
Target Site ◽  
Italian Ryegrass
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