Tristar
| Denomination: | 'Tristar' |
|---|---|
| Botanical Name: | Trigonella foenum-graecum |
| Applicant/Holder: |
Agriculture & Agri-Food Canada, Lethbridge Lethbridge Research Centre, 5403 - 1 Avenue, South P.O. Box 3000 Lethbridge, Alberta T1J 4B1 Canada |
| Breeder: |
Surya N. Acharya, Agriculture & Agri-Food Canada, Lethbridge, Alberta |
| Agent in Canada: |
Agriculture & Agri-Food Canada Office of Intellectual Property and Commercialization 107 Science Place Saskatoon, Saskatchewan S7N 0X2 Canada Tel: (306) 203-1383 |
| Application Date: | 2004-05-31 |
| Application Number: | 04-4215 |
| Grant of Rights Date: | 2009-08-17 |
| Certificate Number: | 3557 |
| Date rights surrendered: | 2014-07-30 |
Variety Description
Variety used for comparison: 'Amber'
Summary: 'Tristar' differs from the reference variety, 'Amber' mainly in plant height, stem length, days to flowering, seed weight and seed colour. The plants of 'Tristar' are taller than those of 'Amber'. The stems of 'Tristar' are longer than those of 'Amber'. 'Tristar' flowers later than 'Amber'. The seed weight of 'Tristar' is lighter than that of 'Amber'.
Description:
PLOIDY: diploid
GROWTH HABIT: erect
STEM: thick, slight pubescence
LEAVES: dark green, 100% ovate shaped leaflet, 100% trifoliate leaf expression
FLOWER: cream on 100% of the plants
ROOT: tap root, narrow, shallow depth
POD: sickle shape, slight pubescence
SEED: late maturing
TOLERANCE TO DROUGHT: good
TOLERANCE TO FLOODING: poor
QUALITY CHARACTERISTICS: Neutral Detergent Fibre (NDF) superior, Acid Detergent Fibre (ADF) inferior
Origin & Breeding History: 'Tristar', tested as L3314, was selected out of the Plant Gene Resources of Canada (PGRC) accession number CN19118, originally collected from the Shiraz area of Iran in 1940. A few seeds of this accession, along with other lines, was acquired in 1998. In 1999, seed was increased at Lethbridge, Alberta with field testing starting in 2000. L3314 was selected based on its abililty to yield high biomass. In 2002, single plants exhibiting good vigour were selected and bulked to produce 'Tristar'.
Tests & Trials: The tests and trials for 'Tristar' were conducted at the Agriculture and Agri-Food Canada Lethbridge Research Centre, Lethbridge, Alberta during the summers of 2005-2008. Trials were arranged using a randomized complete block design (RCBD) with 4-5 replicates per variety. Each replicate consisted of 10 rows measuring approximately 2 metres wide and 6 metres in length. Row spacing was 20 cm under irrigated conditions and 40 cm under rainfed conditions. The plots were seeded at 15 kg/ha for irrigated conditions and 10 kg/ha for rainfed conditions.
Comparison tables for 'Tristar' with reference variety 'Amber'
Early spring growth, plant height (cm)
| 'Tristar' | 'Amber' | |
|---|---|---|
| mean | 40 | 35 |
| std. deviation | 2.51 | 2.15 |
Days to flowering
| 'Tristar' | 'Amber' | |
|---|---|---|
| mean | 55 | 52 |
| std. deviation | 0.95 | 0.95 |
Seed weight (grams per 1000 mature seeds)
| 'Tristar' | 'Amber' | |
|---|---|---|
| mean | 14.3 | 15.6 |
| std. deviation | 0.08 | 0.12 |
Click on image for larger view
Fenugreek: 'Tristar' (top row, right) with reference variety 'Amber' (middle row, left)
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