Abstract
The relationship between field emergence and both laboratory germination testing and several vigour tests was examined at one site for 12 and 20 seed wheat lines in 1978 and 1979. Results of the field emergence trials were more closely correlated with direct stress vigour tests than laboratory germination when soil conditions were unfavourable, but no great advantage was gained from vigour testing when soil conditions were good. Field emergence was closely correlated with 5 cm soil temperature. The use of a vigour test involving germination at 5°C for 7 days, then 20°C for 4 days, is proposed for vigour testing of New Zealand cereal seed lines, after further research has confirmed its suitability over a wider range of soil types and conditions.
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Claims 4
Claim · model-written summary
Under unfavorable soil conditions, direct stress vigour tests correlated more closely with wheat field emergence than laboratory germination.
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- field emergencee0
- Direction
- more closely correlatede0
- Qualifier
- soil conditions were unfavourablee0
- Comparator
- laboratory germinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“field emergence trials were more closely correlated with direct stress vigour tests than laboratory germination when soil conditions were unfavourable”
t0“seed wheat lines”
Claim · model-written summary
Vigour testing offered little advantage under good soil conditions.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- advantagee0
- Qualifier
- soil conditions were goode0
- Comparator
- vigour testinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no great advantage was gained from vigour testing when soil conditions were good”
t0“seed wheat lines”
Claim · model-written summary
Wheat field emergence correlated closely with soil temperature at 5 cm.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- Field emergencee0
- Setting
- 5 cm soil temperaturee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field emergence was closely correlated with 5 cm soil temperature”
t0“seed wheat lines”
Claim · model-written summary
Authors propose a 5°C then 20°C germination vigour test, pending wider validation.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- vigour test involving germination at 5°C for 7 days, then 20°C for 4 dayse0
- Qualifier
- after further research has confirmed its suitability over a wider range of soil types and conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of a vigour test involving germination at 5°C for 7 days, then 20°C for 4 days, is proposed for vigour testing of New Zealand cereal seed lines, after further research has confirmed its suitability over a wider range of soil types and conditions”
t0“seed wheat lines”