Abstract
A field experiment was conducted during growing season of 2007-2008 at Khorasan Agricultural and Natural Resource Research Center, Mashhad-Iran, to study dry matter accumulation and remobilization in grain sorghum genotypes under water stress and normal conditions. The main plots were allocated to two levels of moisture regimes, including water deficit after anthesis and normal condition (no water stress) and the subplots were disturbance photosynthesis with potassium iodide and non disturbance on current photosynthesis and three grain sorghum genotypes (Sepideh, M5 and M2 promising lines). The results showed that water stress significantly (p[less than or equal to]0.01) increased amounts of remobilized dry matter (ARDM), remobilization efficiency (REE), remobilization percentage (REP) by 11.21%, 32.37 % and 14.20%, respectively, compared with normal condition over all treatments. However it significantly (p[less than or equal to]0.05) decreased biological and grain yield. Disturbance in current photosynthesis caused 57.79 % and 21.20 % increase in remobilization percentage and remobilization efficiency compared to non disturbance status across all treatments. M5 genotype had the highest remobilization percentage and remobilization efficiency as compared with the two other genotypes in all experimental plots. The stepwise linear multiple regression indicated that grain yield would be properly predicted by biological yield and harvest index (R{2}=0.99, p[less than or equal to]0.01).
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Claims 9
Claim · model-written summary
Water stress increased remobilized dry matter by 11.21%.
- Taxon
- grain sorghum
Sorghum bicolort0 - Treatment
- water stresse0
- Outcome
- amounts of remobilized dry mattere0
- Direction
- increasede0
- Value
- 11.21%e0
- Comparator
- normal conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water stress significantly (p[less than or equal to]0.01) increased amounts of remobilized dry matter (ARDM), remobilization efficiency (REE), remobilization percentage (REP) by 11.21%, 32.37 % and 14.20%, respectively, compared with normal condition over all treatments.”
t0“grain sorghum”
Claim · model-written summary
Water stress increased remobilization efficiency by 32.37%.
- Taxon
- grain sorghumSorghum bicolort0
- Treatment
- water stresse0
- Outcome
- remobilization efficiencye0
- Direction
- increasede0
- Value
- 32.37 %e0
- Comparator
- normal conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water stress significantly (p[less than or equal to]0.01) increased amounts of remobilized dry matter (ARDM), remobilization efficiency (REE), remobilization percentage (REP) by 11.21%, 32.37 % and 14.20%, respectively, compared with normal condition over all treatments.”
t0“grain sorghum”
Claim · model-written summary
Water stress increased remobilization percentage by 14.20%.
- Taxon
- grain sorghumSorghum bicolort0
- Treatment
- water stresse0
- Outcome
- remobilization percentagee0
- Direction
- increasede0
- Value
- 14.20%e0
- Comparator
- normal conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water stress significantly (p[less than or equal to]0.01) increased amounts of remobilized dry matter (ARDM), remobilization efficiency (REE), remobilization percentage (REP) by 11.21%, 32.37 % and 14.20%, respectively, compared with normal condition over all treatments.”
t0“grain sorghum”
Claim · model-written summary
Water stress significantly decreased biological yield.
- Taxon
- grain sorghumSorghum bicolort0
- Treatment
- water stresse0
- Outcome
- biologicale1
- Direction
- decreasede1
- Comparator
- normal conditione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water stress significantly (p[less than or equal to]0.01) increased”
e1“However it significantly (p[less than or equal to]0.05) decreased biological and grain yield.”
e2“normal condition (no water stress)”
t0“grain sorghum”
Claim · model-written summary
Water stress significantly decreased grain yield.
- Taxon
- grain sorghumSorghum bicolort0
- Treatment
- water stresse0
- Outcome
- grain yielde1
- Direction
- decreasede1
- Comparator
- normal conditione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water stress significantly (p[less than or equal to]0.01) increased”
e1“However it significantly (p[less than or equal to]0.05) decreased biological and grain yield.”
e2“normal condition (no water stress)”
t0“grain sorghum”
Claim · model-written summary
Disturbed current photosynthesis increased remobilization percentage by 57.79%.
- Taxon
- grain sorghumSorghum bicolort0
- Treatment
- Disturbance in current photosynthesise0
- Outcome
- remobilization percentagee0
- Direction
- increasee0
- Value
- 57.79 %e0
- Comparator
- non disturbance statuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disturbance in current photosynthesis caused 57.79 % and 21.20 % increase in remobilization percentage and remobilization efficiency compared to non disturbance status across all treatments.”
t0“grain sorghum”
Claim · model-written summary
Disturbed current photosynthesis increased remobilization efficiency by 21.20%.
- Taxon
- grain sorghumSorghum bicolort0
- Treatment
- Disturbance in current photosynthesise0
- Outcome
- remobilization efficiencye0
- Direction
- increasee0
- Value
- 21.20 %e0
- Comparator
- non disturbance statuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disturbance in current photosynthesis caused 57.79 % and 21.20 % increase in remobilization percentage and remobilization efficiency compared to non disturbance status across all treatments.”
t0“grain sorghum”
Claim · model-written summary
M5 had the highest remobilization percentage and efficiency among the three genotypes.
- Taxon
- grain sorghumSorghum bicolort0
- Material
- M5e0
- Outcome
- remobilization percentage and remobilization efficiencye0
- Direction
- higheste0
- Comparator
- two other genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“M5 genotype had the highest remobilization percentage and remobilization efficiency as compared with the two other genotypes in all experimental plots.”
t0“grain sorghum”
Claim · model-written summary
Biological yield and harvest index predicted grain yield with R² of 0.99.
- Taxon
- grain sorghumSorghum bicolort0
- Outcome
- grain yielde0
- Value
- R{2}=0.99e0
- Qualifier
- biological yield and harvest indexe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stepwise linear multiple regression indicated that grain yield would be properly predicted by biological yield and harvest index (R{2}=0.99, p[less than or equal to]0.01).”
t0“grain sorghum”
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