Abstract
Seed lots of sorghum cv. IS 34213 were produced by harvesting either at the time of black layer formation on the endosperm (equivalent to maximum seed dry weight) or at full maturity and then dried either slowly under shaded conditions or rapidly in the sun. Small seeds had the lowest viability and vigour in each of the seed lots. Seeds harvested at full maturity were of higher vigour and this was not decreased by the drying method. Low vigour seeds showed the greatest decline in performance after ageing. Low vigour was associated with low initial viability (K i ), low final laboratory germination percentage, a long lag phase before germination, poor seedling performance and a large proportion of non-viable or incompletely vitally stained seed embryos. Alpha-amylase activity in germinating seeds was related to seed vigour.
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Claims 6
Claim · model-written summary
Small sorghum seeds had the lowest viability and vigour in each seed lot.
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed lots of sorghum cv. IS 34213 were produced by harvesting either at the time of black layer formation on the endosperm (equivalent to maximum seed dry weight) or at full maturity”
e1“Small seeds had the lowest viability and vigour in each of the seed lots”
Claim · model-written summary
Sorghum seeds harvested at full maturity had higher vigour than those harvested at black layer, and drying method did not reduce it.
- Treatment
- harvested at full maturitye2
- Outcome
- vigoure2
- Direction
- highere2
- Qualifier
- this was not decreased by the drying methode2
- Comparator
- black layer formation on the endosperme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed lots of sorghum cv. IS 34213 were produced by harvesting either at the time of black layer formation on the endosperm (equivalent to maximum seed dry weight) or at full maturity”
e2“Seeds harvested at full maturity were of higher vigour and this was not decreased by the drying method”
Claim · model-written summary
Low-vigour sorghum seeds showed the greatest decline in performance after ageing.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed lots of sorghum cv. IS 34213 were produced by harvesting either at the time of black layer formation on the endosperm (equivalent to maximum seed dry weight) or at full maturity”
e3“Low vigour seeds showed the greatest decline in performance after ageing”
Claim · model-written summary
Low vigour was associated with low initial viability, low final germination percentage and a long lag phase before germination in sorghum.
- Material
- IS 34213e0
- Outcome
- initial viabilitye4
- Qualifier
- low final laboratory germination percentage, a long lag phase before germinatione4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed lots of sorghum cv. IS 34213 were produced by harvesting either at the time of black layer formation on the endosperm (equivalent to maximum seed dry weight) or at full maturity”
e4“Low vigour was associated with low initial viability (K i ), low final laboratory germination percentage, a long lag phase before germination”
Claim · model-written summary
Low-vigour sorghum seeds had poor seedling performance and a large proportion of non-viable or incompletely stained embryos.
- Organ / stage
- seed embryose5
- Outcome
- seedling performancee5
- Qualifier
- a large proportion of non-viable or incompletely vitally stained seed embryose5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed lots of sorghum cv. IS 34213 were produced by harvesting either at the time of black layer formation on the endosperm (equivalent to maximum seed dry weight) or at full maturity”
e5“poor seedling performance and a large proportion of non-viable or incompletely vitally stained seed embryos”
Claim · model-written summary
Alpha-amylase activity in germinating sorghum seeds was related to seed vigour.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed lots of sorghum cv. IS 34213 were produced by harvesting either at the time of black layer formation on the endosperm (equivalent to maximum seed dry weight) or at full maturity”
e6“Alpha-amylase activity in germinating seeds was related to seed vigour”
The same questions in other papers
stage · growth · SorghumPositive and negative results
5 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- negative
5 papers more in this group
See all 9 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.