MOVEMENT TO THE SUB-SOIL OF P APPLIED TO AN ACIDIC SOIL CROPPED TO TIMOTHY-GRASS FOR TWENTY-SIX YEARS

1989 ◽  
Vol 69 (4) ◽  
pp. 875-878 ◽  
Author(s):  
JOHN E. RICHARDS ◽  
GILLES BÉLANGER
Keyword(s):  
Key Words ◽  
Phleum Pratense ◽  
Acidic Soil ◽  
Phosphorus Leaching ◽  
Timothy Grass ◽  
Phleum Pratense L

Fertilizer P was applied annually (0, 15, 29 and 44 kg P ha−1 yr−1) for 26 yr to an acidic loam cropped to timothy (Phleum pratense L.). Some fertilizer P was translocated into the 30- to 45-cm depth of soil when 15 kg P ha−1 yr−1 was applied and into the 45- to 60-cm depth when 44 kg P ha−1 yr−1 was applied. The amount of P translocated increased with increasing rates of applied P. Key words: Fertilizer, phosphorus, leaching, translocation, movement

EVALUATION OF TIMOTHY CULTIVARS FOR VOLUNTARY INTAKE AND NUTRIENT COMPONENTS

1988 ◽  
Vol 68 (4) ◽  
pp. 1121-1129 ◽  
Author(s):  
W. N. MASON ◽  
P. M. FLIPOT
Keyword(s):  
Key Words ◽  
Dry Matter ◽  
Phleum Pratense ◽  
Dry Matter Intake ◽  
Dry Matter Yield ◽  
Dry Matter Digestibility ◽  
Flower Stage ◽  
Voluntary Intake ◽  
Phleum Pratense L

Five timothy (Phleum pratense L.) cultivars, Clair, Champ, Milton, Climax and Bounty, were harvested at first flower stage during 2 consecutive years and in the regrowth for 1 yr. The forages were each offered as hay to 15 young rams to evaluate voluntary intake. Five animals were used to determine initial harvest dry matter digestibility. The cultivars varied significantly in voluntary intake at first flower stage. The highest intake (g kg−0.75 d−1) averaged for the years was obtained in the early cultivar Champ (65.9), which was 10% more than that of the medium-late cultivar Climax. The cultivars did not differ significantly in dry matter digestibility. In the regrowth, the relative intakes of the cultivars were essentially reversed from that of the initial harvest. The voluntary intake was substantially higher but the differences among forages were less marked. Climax regrowth voluntary intake was higher (P < 0.05) than all cultivars, except Bounty. A 15% range in digestible dry matter intake was present among cultivars. The ranking of the culivars for digestible dry matter was different than for dry matter yield. Key words: Timothy, Phleum pratense L., voluntary intake, dry matter digestibility

5S rDNA of timothy- grass Phleum pratense L.

2018 ◽  
Vol 10 (2) ◽  
pp. 107-112
Author(s):  
O Ishchenko ◽  
◽  
T Derevenko ◽  
I Panchuk ◽  
◽  
...  
Keyword(s):  
5S Rdna ◽  
Phleum Pratense ◽  
Timothy Grass ◽  
Phleum Pratense L

CHEMICAL COMPOSITION OF WILD SAMPLES OFTIMOTHY-GRASS (PHLEUM PRATENSE L.)

2020 ◽  
Author(s):  
Valentina Korovina ◽  
Nikolay Kozlov ◽  
Tamara Komkova
Keyword(s):  
Chemical Composition ◽  
Statistical Processing ◽  
Phleum Pratense ◽  
Research Center ◽  
Timothy Grass ◽  
Low Level ◽  
Experimental Base ◽  
Standard Collection ◽  
Phosphorus And Potassium ◽  
Phleum Pratense L

The research was carried out in the field at the Central experimental base of the Federal Williams Research Center. The object of research was 13 samples of timothy-grass. Samples were sown according to the scheme of a standard collection nursery. All studies and observations were carried out on the herbage of the 2nd and 3rd year of life. Statistical processing of the research results indicates a low level of variation. The sample № 414 stood out high content of raw protein and raw fat. Two significant correlations were found (between the content of phosphorus and potassium, as well as between crude fiber and crude ash). Analysis of remoteness and kinship between samples showed the presence of 5 clusters (genetically different quality groups), which can be used for breeding for combinational ability and fixing of breeding-valuable features and properties.

THE COMPOSITION AND UTILIZATION OF SILAGE PREPARED FROM TIMOTHY (Phleum pratense L.) AND QUACKGRASS (Elytrigia repens (L.) NEOSKI)

1989 ◽  
Vol 69 (1) ◽  
pp. 255-258 ◽  
Author(s):  
P. NARASIMALU ◽  
H. T. KUNELIUS ◽  
K. B. McRAE
Keyword(s):  
Chemical Composition ◽  
Key Words ◽  
Nitrogen Retention ◽  
Phleum Pratense ◽  
Apparent Digestibility ◽  
Elytrigia Repens ◽  
Voluntary Intake ◽  
Phleum Pratense L

Silages prepared from the first-cut and 7-8 wk regrowth of timothy (Phleum pratense L.) and timothy stands with 56% infestation of quackgrass (Elytrigia repens (L.) Neoski) were compared for chemical composition and for their utilization. Quackgrass infestation of timothy had no significant effect on the silage composition, and its intake and apparent digestibility in sheep. The daily retention of N was higher with the timothy-quackgrass than timothy silage (P < 0.05).Key words: Phleum pratense, Elytrigia repens, voluntary intake, apparent digestibility, nitrogen retention

Metabolite accumulation during ice encasement of timothy grass (Phleum pratense L.)

1994 ◽  
Vol 102 ◽  
pp. 373-380 ◽  
Author(s):  
Bjarni E. Gudleifsson
Keyword(s):  
Pseudomonas Fluorescens ◽  
Phleum Pratense ◽  
Anoxic Conditions ◽  
Timothy Grass ◽  
Subzero Temperatures ◽  
Long Duration ◽  
Ice Encasement ◽  
Metabolite Accumulation ◽  
Phleum Pratense L ◽  
Thaw Water

SynopsisPlants are killed by prolonged ice encasement at slightly subzero temperatures and under these anoxic conditions a number of metabolites are accumulated. Timothy grass plants encased in ice at −2°C can survive these conditions for many weeks and accumulate mainly CO2 and ethanol and lower levels of malate, oxalate, citrate, fumarate and pyruvate. While the accumulation of most of the metabolites increases towards the end of the encasement period the amount of malate decreases, indicating utilisation. Late in the encasement period lactate, butyrate, and traces of malonate, formate and tartarate were detected which might be of bacterial origin. The bacteria most commonly isolated from ice-encased plants is Pseudomonas fluorescens (Trevisan) which in most cases is saprophytic. All of the above-mentioned metabolites were also detected from thaw water in the field after long duration of ice encasement, butyrate attaining the highest concentration.

Delayed harvest affects mineral and NDF concentrations, and digestibility of timothy

2008 ◽  
Vol 88 (2) ◽  
pp. 325-329 ◽  
Author(s):  
S. Pelletier ◽  
G. F. Tremblay ◽  
G. Bélanger ◽  
P. Seguin ◽  
R. Drapeau ◽  
...  
Keyword(s):  
Key Words ◽  
Dry Matter ◽  
Metabolic Disorders ◽  
Nutritive Value ◽  
Phleum Pratense ◽  
Neutral Detergent Fiber ◽  
Fiber Concentration ◽  
Harvest Delay ◽  
Phleum Pratense L

A 1-wk delay after late heading in the harvest of timothy spring growth reduced dietary cation-anion difference (-17%), in vitro digestibilities of dry matter (-7%) and neutral detergent fiber (-10%), and increased neutral detergent fiber concentration (+5%). In summer regrowth, the harvest delay tended to have similar effects, but variations (1-6%) were smaller. Key words: Nutritive value, stages of development, Phleum pratense L., metabolic disorders

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