AC Christie red clover

1999 ◽  
Vol 79 (2) ◽  
pp. 257-258 ◽  
Author(s):  
R. A. Martin ◽  
B. R. Christie ◽  
Y. A. Papadopoulos ◽  
R. C. Martin

AC Christie red clover (Trifolium pratense L.) is a diploid cultivar of the double-cut type. It was developed by phenotypic selection at the Crop and Livestock Research Centre, Agriculture and Agri-Food Canada, Charlottetown, PEI. It is early flowering, very winterhardy and has no pubescence on the stems. In Atlantic Canada it has produced more forage than the check cultivars in the second and third harvest years. Key words: Red clover, Trifolium pratense, cultivar description

1998 ◽  
Vol 78 (1) ◽  
pp. 113-114 ◽  
Author(s):  
B. R. Christie ◽  
T. M. Choo ◽  
Y. A. Papadopoulos ◽  
J. Lewis ◽  
R. Michaud

AC Endure red clover (Trifolium pratense L.) is a diploid cultivar of the double-cut type developed by mass selection at the Crop and Livestock Research Centre, Agriculture and Agri-Food Canada, Charlottetown, PEI. It is earlier flowering than Florex or Marino, and higher in forage yield, especially in the second and third harvest years. Key words: Red clover, Trifolium pratense L., cultivar description


2008 ◽  
Vol 88 (6) ◽  
pp. 1091-1092 ◽  
Author(s):  
Y. A. Papadopoulos ◽  
B. R. Christie ◽  
T. M. Choo ◽  
R. Michaud ◽  
K. B. McRae ◽  
...  

Tapani is a 21-clone diploid synthetic cultivar of red clover (Trifolium pratense L.). It was developed by phenotypic selection at Agriculture and Agri-Food Canada, Crops and Livestock Research Centre, in Charlottetown, Prince Edward Island, and at the Soils and Crops Research and Development Centre in Quebec City, Quebec. The original material for this strain was selected from collections made in old stands of red clover in three Atlantic Provinces of Canada. Tapani is early flowering and winterhardy. In Atlantic Canada, Tapani yielded an average of 109% of the check cultivar Marino over three production years. This cultivar has superior re-growth potential with high second-cut herbage yield. Key words: Red clover, Trifolium pratense L., cultivar description


1994 ◽  
Vol 74 (1) ◽  
pp. 149-150
Author(s):  
T. M. Choo ◽  
B. R. Christie

AC Kingston red clover (Trifolium pratense L.) is a diploid cultivar of the double-cut type developed by mass selection at the Agriculture Canada Research Station, Charlottetown, PEL It is similar to Florex in maturity, but is superior in forage yield in the second harvest year. It was selected for persistence under field conditions. Key words: Red clover, Trifolium pratense L., persistence, cultivar description


2006 ◽  
Vol 86 (3) ◽  
pp. 749-750
Author(s):  
Bruce Coulman

Azur is a diploid cultivar of red clover [Trifolium pratense (L.)], which was selected for vigor and growth habit in the year of seeding. In forage trials conducted in Québec, Azur was superior in dry matter yield to check cultivars, particularly in trials harvested in the second production year. In trials in Ontario and the Atlantic provinces, Azur was numerically superior in dry matter yield to the check cultivar, but not significantly so (P < 0.05). Key words: Red clover, Trifolium pratense (L.), cultivar description


1994 ◽  
Vol 74 (4) ◽  
pp. 825-826 ◽  
Author(s):  
T. M. Choo ◽  
B. R. Christie ◽  
G. F. Bélanger ◽  
Y. A. Papadopoulos ◽  
S. Kilyanek

The red clover (Trifolium pratense L.) cultivar, AC Charlie, is a diploid of the early or double-cut type. It was developed by two cycles of mass selection for persistence and vigour. Forage yields after severe winter conditions indicate that AC Charlie is more winterhardy than Florex in Atlantic Canada. It is similar in maturity to Florex and 3–4 d later than Marino. Key words: Cultivar description, red clover, AC Charlie


1999 ◽  
Vol 79 (3) ◽  
pp. 357-359 ◽  
Author(s):  
B. R. Christie ◽  
R. A. Martin

To increase the persistence of red clover (Trifolium pratense L.), phenotypic recurrent selection was conducted under field conditions. After three cycles of selection, a strain designated as CRS-16, was developed. This strain has better persistence than the check cultivars, Florex and Marino, and has a more fibrous root system. Among 4-yr-old plants, about 10% initiated new shoots from below the crown. Key words: Red clover, Trifolium pratense L. persistence, root type


Author(s):  
Aušra ARLAUSKIENĖ ◽  
Viktorija GECAITĖ ◽  
Danutė JABLONSKYTĖ-RAŠČĖ

Research was carried out at the Lithuanian Research Centre for Agriculture and Forestry’s (LAMMC) Joniškėlis Experimental Station on a clay loam Endocalcari Endohypogleyic Cambisol. The study was aimed to explore the aboveground mass of perennial forage legumes: red clover (Trifolium pratense L.) and lucerne (Medicago sativa L.), and their mixtures with festulolium (x Festuliolium), used as green manure, qualitative parameters and compatibility with cereals on the basis of nutrients nitrogen (N), phosphorus (P) and potassium (K). The deficiency of other nutrients (P, K) and intensity of green manure mineralization can lead to N absorption. It has been determined that winter wheat takes one kg of N together with 0.2 kg P and 0.6 kg K. Spring wheat requires a similar amount of P but a higher amount of K. Average winter wheat grain yield can be 4.0 t ha-1 on a clay loam Cambisol in organic cropping system. NPK content – 134 kg ha-1 is needed for such productivity (grain + straw). This content is lower for spring winter growing. P:N and K:N ratios are more favourable in perennial forage legume mixture with festulolium, as compared to legume alone. To obtain grain yields of 4 t ha-1 of winter wheat and 3 t ha-1 of spring wheat in balanced organic crop rotation it is sufficient to apply 3.0 and 2.0 t ha-1 DM of pure legume mass as green manure. “Cut-and-carry” fertilisers do not satisfy the wheat demand for P.


2013 ◽  
Vol 29 (4) ◽  
pp. 705-714
Author(s):  
G. Naydenova

The objective of this experiment was to: 1) examine the degree of influence of hereditary factors and conditions of growth (region of cultivation, season of growth and type of cultivation) on the phenotypic variance of leafiness in breeding populations of red clover; 2) quantify heritability and experimental variances in order to assess the opportunities for red clover breeding for improved leafiness. Five genotypes of red clover (four synthetic breeding populations and variety Sofia 52) were screened in the study. Among the factors studied as environmental variables, the season of growth had the strongest effect on the leafiness of red clover. In second vegetation of the life cycle of plants there was a significant additive genetic variance (hns 2 = 0.31) of the trait of leaf proportion in the fresh forage and the recurrent phenotypic selection for this criterion could be used in the breeding for leafiness in this species. It can be concluded from the results in this experiment that a higher degree of heritable genetic variation of leafiness must be searched for in connection with the variation of additional characteristics - thickness of stems, rates of formation and growth of stems, growth features related to regrowth (secondary growth) and age of sward (plants) and probably to persistence of genotypes.


Crop Science ◽  
1965 ◽  
Vol 5 (5) ◽  
pp. 425-428 ◽  
Author(s):  
R. J. Bula ◽  
R. G. May ◽  
C. S. Garrison ◽  
C. M. Rincker ◽  
J. G. Dean

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