Abstract
Sorghum autotoxicity can inhibit germination and growth, resulting in low plant densities and reduced crop productivity. Three sorghum varieties (Dhlakama, Shirikure and Macia) were evaluated for autotoxicity in 2018 at the University of Zimbabwe. Experiments were set up for 3 × 4 factorial testing of the effect of sorgoleone from the three varieties on sorghum seeds and seedlings at four serial dilutions. Crude sorgoleone was extracted using methanol, from seedlings of each variety at six days after emergence. To test autotoxicity, serial dilutions of sorgoleone were prepared by mixing the crude methanol extract with distilled water in the ratio 0:0; 1:10; 1:5 and 1:3 (v/v). Sorgoleone from Dhlakama significantly (p < 0.001) reduced germination of that variety by 76.1%. Germination in Shirikure and Macia was inhibited by 69.4% and 58.9%, respectively. Increasing the strength of the serial dilution of crude sorgoleone from all varieties significantly (p < 0.001) reduced plumule length of the three sorghum varieties. Sorgoleone from Shirikure and Dhlakama significantly (p < 0.001) reduced the dry weight of these two varieties by 76.9% and 69.4% respectively compared to crude sorgoleone from Macia. Sorghum varieties producing high concentrations of sorgoleone are highly autotoxic, and autotoxicity in the sorghum is variety dependent.
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Claims 7
Claim · model-written summary
Sorgoleone from Dhlakama reduced germination of Dhlakama by 76.1%.
- Material
- Dhlakamae0
- Treatment
- Sorgoleone from Dhlakamae0
- Outcome
- germinatione0
- Direction
- reducede0
- Value
- 76.1%e0
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorgoleone from Dhlakama significantly (p < 0.001) reduced germination of that variety by 76.1%.”
t0“High sorgoleone autotoxicity in sorghum (Sorghum bicolor (L.) Moench) varieties that produce high sorgoleone content”
Claim · model-written summary
Shirikure germination was inhibited by 69.4%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination in Shirikure and Macia was inhibited by 69.4% and 58.9%, respectively.”
t0“High sorgoleone autotoxicity in sorghum (Sorghum bicolor (L.) Moench) varieties that produce high sorgoleone content”
Claim · model-written summary
Macia germination was inhibited by 58.9%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination in Shirikure and Macia was inhibited by 69.4% and 58.9%, respectively.”
t0“High sorgoleone autotoxicity in sorghum (Sorghum bicolor (L.) Moench) varieties that produce high sorgoleone content”
Claim · model-written summary
Stronger crude sorgoleone dilution reduced plumule length in all three sorghum varieties.
- Treatment
- Increasing the strength of the serial dilution of crude sorgoleonee0
- Outcome
- plumule lengthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the strength of the serial dilution of crude sorgoleone from all varieties significantly (p < 0.001) reduced plumule length of the three sorghum varieties.”
Claim · model-written summary
Sorgoleone from Shirikure reduced dry weight by 76.9% relative to sorgoleone from Macia.
- Material
- Shirikuree0
- Treatment
- Sorgoleone from Shirikuree0
- Outcome
- dry weighte0
- Direction
- reducede0
- Value
- 76.9%e0
- Comparator
- crude sorgoleone from Maciae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorgoleone from Shirikure and Dhlakama significantly (p < 0.001) reduced the dry weight of these two varieties by 76.9% and 69.4% respectively compared to crude sorgoleone from Macia.”
t0“High sorgoleone autotoxicity in sorghum (Sorghum bicolor (L.) Moench) varieties that produce high sorgoleone content”
Claim · model-written summary
Sorgoleone from Dhlakama reduced dry weight by 69.4% relative to sorgoleone from Macia.
- Material
- Dhlakamae0
- Treatment
- Sorgoleone from Shirikure and Dhlakamae0
- Outcome
- dry weighte0
- Direction
- reducede0
- Value
- 69.4%e0
- Comparator
- crude sorgoleone from Maciae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorgoleone from Shirikure and Dhlakama significantly (p < 0.001) reduced the dry weight of these two varieties by 76.9% and 69.4% respectively compared to crude sorgoleone from Macia.”
t0“High sorgoleone autotoxicity in sorghum (Sorghum bicolor (L.) Moench) varieties that produce high sorgoleone content”
Claim · model-written summary
Varieties producing high sorgoleone concentrations were highly autotoxic, with variety-dependent effects.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum varieties producing high concentrations of sorgoleone are highly autotoxic, and autotoxicity in the sorghum is variety dependent.”
The same questions in other papers
sorgoleone · growth · SorghumPositive and negative results
1 in the opposite direction
- positive
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.