Abstract
The yield, protein and starch content of Martonvásár maize hybrids belonging to different FAO groups were examined in experiments involving early, optimal and late sowing dates in two different years (drought — 2007, favourable water supplies — 2008) on a calcareous chernozem soil with loam texture at the Látókép Experimental Station of the Centre of Agricultural Sciences and Engineering, University of Debrecen.Sowing date had a significant effect on maize grain yield in the dry year. The grain yields of hybrids with longer growing periods were significantly higher than those with shorter growing periods in both years, but they reacted sensitively to the change in sowing date in the dry year. Due to the rainfall distribution in the growing season, sowing date did not modify the performance of the hybrids in the year with favourable water supplies. Sowing date had a significant effect on the grain protein content in the dry year, with significantly higher values after late sowing than after early or optimal sowing. Averaged over the sowing dates, the protein content of the FAO 200 hybrid was significantly higher in both years than that of hybrids in other FAO groups. In the dry year, the greatest difference in protein content could be observed between the early and late sowing dates for hybrids in all four FAO groups. A negative correlation was found between yield and protein content. Sowing date significantly increased the starch content of maize in the favourable year, with a significant difference between early and late sowing dates.In the dry year higher starch contents were recorded for all the hybrids and for all the sowing dates than in the favourable year. In the dry year, sowing date only caused a significant difference in the starch content in the case of FAO 200 sown at optimal and late sowing dates. In the favourable year, a significant difference was only obtained for the starch content of the FAO 400 hybrid sown at early and late sowing dates. Satisfactory quality can only be achieved if suitable genotypes are grown with appropriate technologies.
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Claims 13
Claim · model-written summary
Sowing date significantly affected grain yield in the dry year.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sowing date had a significant effect on maize grain yield in the dry year”
Claim · model-written summary
Longer-season hybrids yielded significantly more than shorter-season hybrids in both years.
Verbatim
e0“The grain yields of hybrids with longer growing periods were significantly higher than those with shorter growing periods in both years”
Claim · model-written summary
Longer-season hybrids were sensitive to changed sowing date in the dry year.
Verbatim
e0“they reacted sensitively to the change in sowing date in the dry year”
t0“maize hybrids”
Claim · model-written summary
Sowing date did not modify hybrid performance in the favorable water year.
- Taxon
- maize hybridst0
- Treatment
- sowing datee0
- Outcome
- performance of the hybridse0
- Direction
- did not modifye0
- Qualifier
- year with favourable water suppliese0
Not reportedComparator
Verbatim
e0“sowing date did not modify the performance of the hybrids in the year with favourable water supplies”
t0“maize hybrids”
Claim · model-written summary
Late sowing produced significantly higher grain protein than early or optimal sowing in the dry year.
- Treatment
- late sowinge0
- Outcome
- grain protein contente0
- Direction
- highere0
- Qualifier
- dry yeare0
- Comparator
- early or optimal sowinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sowing date had a significant effect on the grain protein content in the dry year, with significantly higher values after late sowing than after early or optimal sowing”
t0“maize”
Claim · model-written summary
FAO 200 hybrid protein content exceeded other FAO groups in both years.
- Material
- FAO 200 hybride0
- Outcome
- protein contente0
- Direction
- highere0
- Comparator
- hybrids in other FAO groupse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the protein content of the FAO 200 hybrid was significantly higher in both years than that of hybrids in other FAO groups”
t0“maize”
Claim · model-written summary
Early versus late sowing gave the greatest protein-content difference in the dry year across four FAO groups.
- Outcome
- difference in protein contente0
- Direction
- greateste0
- Qualifier
- dry yeare0
- Comparator
- early and late sowing datese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the dry year, the greatest difference in protein content could be observed between the early and late sowing dates for hybrids in all four FAO groups”
t0“maize”
Claim · model-written summary
Yield and protein content correlated negatively.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A negative correlation was found between yield and protein content”
t0“maize”
Claim · model-written summary
Sowing date significantly increased starch content in the favorable year.
- Treatment
- Sowing datee0
- Outcome
- starch contente0
- Direction
- increasede0
- Qualifier
- favourable yeare0
- Comparator
- early and late sowing datese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sowing date significantly increased the starch content of maize in the favourable year, with a significant difference between early and late sowing dates”
Claim · model-written summary
Starch content was higher in the dry year across hybrids and dates.
- Outcome
- starch contentse0
- Direction
- highere0
- Qualifier
- all the hybrids and for all the sowing datese0
- Comparator
- favourable yeare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the dry year higher starch contents were recorded for all the hybrids and for all the sowing dates than in the favourable year”
t0“maize”
Claim · model-written summary
Dry-year starch differed significantly between optimal and late sowing for FAO 200.
- Material
- FAO 200e0
- Treatment
- sowing datee0
- Outcome
- starch contente0
- Comparator
- optimal and late sowing datese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the dry year, sowing date only caused a significant difference in the starch content in the case of FAO 200 sown at optimal and late sowing dates”
t0“maize”
Claim · model-written summary
Favorable-year starch differed significantly between early and late sowing for FAO 400.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the favourable year, a significant difference was only obtained for the starch content of the FAO 400 hybrid sown at early and late sowing dates”
t0“maize”
Claim · model-written summary
The authors recommend matching genotype and technology for satisfactory quality.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Satisfactory quality can only be achieved if suitable genotypes are grown with appropriate technologies”
t0“maize”
The same questions in other papers
sowing time · quality: protein · Zea mays (maize)Positive and negative results
8 papers in the same direction as this paper · 7 in the opposite direction
- no effect
- negative
- no effect
12 papers more in this group
See all 16 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.