Abstract
Abstract One hundred S1, families from a random‐mating sorghum [Sorghum bicolor (L.) Moench] population (NP21R) were grown 2 years on a mixed, mesic Aridic Argiustoll (calcareous) soil that induced severe iron (Fe)‐deficiency chlorosis. Agronomic traits (flowering, plant,height, grain yield ha‐1, grain yield plant‐1, grain yield head‐1, seeds plant‐1, seeds head‐1, 100‐seed weight, and grain protein) were evaluated for S1 families over two replications of a split‐plot design with (+Fe) and without (‐Fe) iron supplied to plants in a foliar spray. Chlorosis ratings were recorded every other day for 37 days beginning 21 days after planting only in whole plots with the ‐Fe treatment. Broad‐sense heritability estimated from family plot data over 2 years for the average chlorosis rating was 0.86 ± 0.15. Agronomic traits improved consistently for plants receiving foliar Fe, but treatment means were significantly different for grain yield ha‐1 and grain yield plant”; only. Regression of the percentage decrease in the,‐Fe over the +Fe treatment means indicated that grain yield ha‐1 decreased more for S1 families in the ‐Fe treatment relative to the +Fe treatment per unit increase in the average chlorosis rating (21%) than did other traits.
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Claims 4
Claim · model-written summary
Average chlorosis rating had broad-sense heritability of 0.86 ± 0.15.
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum [Sorghum bicolor (L.) Moench]”
e0“Broad‐sense heritability estimated from family plot data over 2 years for the average chlorosis rating was 0.86 ± 0.15”
Claim · model-written summary
Foliar Fe improved agronomic traits consistently.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum [Sorghum bicolor (L.) Moench]”
e0“Agronomic traits improved consistently for plants receiving foliar Fe”
e1“with (+Fe) and without (‐Fe) iron supplied to plants in a foliar spray”
Claim · model-written summary
Foliar Fe treatment means differed significantly for grain yield ha‐1 and grain yield plant.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum [Sorghum bicolor (L.) Moench]”
e0“treatment means were significantly different for grain yield ha‐1 and grain yield plant”; only”
e1“with (+Fe) and without (‐Fe) iron supplied to plants in a foliar spray”
Claim · model-written summary
Grain yield ha‐1 declined more per unit increase in chlorosis rating under ‐Fe than other traits, by 21%.
- Material
- S1 familiese0
- Treatment
- ‐Fe treatmente0
- Outcome
- grain yield ha‐1e0
- Direction
- decreasede0
- Value
- 21%e0
- Comparator
- +Fe treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum [Sorghum bicolor (L.) Moench]”
e0“grain yield ha‐1 decreased more for S1 families in the ‐Fe treatment relative to the +Fe treatment per unit increase in the average chlorosis rating (21%) than did other traits”
The same questions in other papers
iron atom · yield · SorghumPositive and negative results
20 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
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21 papers more in this group
See all 25 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.