Abstract
Climate change, especially precipitation change, will significantly change soil moisture, which then influences root growth, further affecting yield and grain quality. Previous studies focused on the drought or flood effects on summer maize growth. However, few studied the effects of drought-flood abrupt alternation (DFAA) on the growth of summer maize. We explored the DFAA impacts on the roots, leaf area index (LAI), yield, and grain quality in field. The main results show that DFAA had different impacts on the summer maize growth in the seeding-jointing stage (SJS) and tasseling-grain filling stage (TGS). In general, the DFAA reduced the yield. Roots at the depth of 40 cm had obviously positive impacts on the yield. The DFAA reduced the LAI and promoted the maximum LAI achieving in advance. The grain crude protein augmented under DFAA. The drought had evidently negative impacts on the grain crude fat in the TGS, while it had no obvious influence in the SJS. DFAA had no apparent impact on the grain crude starch. These results could provide some references for the effects and adaptation-strategies study of extreme climate events and their impacts on growth of summer maize.
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Claims 9
Claim · model-written summary
Drought-flood abrupt alternation reduced summer maize yield.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main results show that DFAA had different impacts on the summer maize growth in the seeding-jointing stage (SJS) and tasseling-grain filling stage (TGS)”
e1“In general, the DFAA reduced the yield”
Claim · model-written summary
Roots at 40 cm depth had positive impacts on summer maize yield.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main results show that DFAA had different impacts on the summer maize growth in the seeding-jointing stage (SJS) and tasseling-grain filling stage (TGS)”
e2“Roots at the depth of 40 cm had obviously positive impacts on the yield”
Claim · model-written summary
Drought-flood abrupt alternation reduced summer maize leaf area index.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main results show that DFAA had different impacts on the summer maize growth in the seeding-jointing stage (SJS) and tasseling-grain filling stage (TGS)”
e3“The DFAA reduced the LAI and promoted the maximum LAI achieving in advance”
Claim · model-written summary
Drought-flood abrupt alternation promoted the maximum leaf area index being reached earlier in summer maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main results show that DFAA had different impacts on the summer maize growth in the seeding-jointing stage (SJS) and tasseling-grain filling stage (TGS)”
e3“The DFAA reduced the LAI and promoted the maximum LAI achieving in advance”
Claim · model-written summary
Drought-flood abrupt alternation increased grain crude protein in summer maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main results show that DFAA had different impacts on the summer maize growth in the seeding-jointing stage (SJS) and tasseling-grain filling stage (TGS)”
e4“The grain crude protein augmented under DFAA”
Claim · model-written summary
Drought had negative impacts on grain crude fat in summer maize at the tasseling-grain filling stage.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main results show that DFAA had different impacts on the summer maize growth in the seeding-jointing stage (SJS) and tasseling-grain filling stage (TGS)”
e5“The drought had evidently negative impacts on the grain crude fat in the TGS, while it had no obvious influence in the SJS”
Claim · model-written summary
Drought had no obvious influence on grain crude fat in summer maize at the seeding-jointing stage.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main results show that DFAA had different impacts on the summer maize growth in the seeding-jointing stage (SJS) and tasseling-grain filling stage (TGS)”
e5“The drought had evidently negative impacts on the grain crude fat in the TGS, while it had no obvious influence in the SJS”
Claim · model-written summary
Drought-flood abrupt alternation had no apparent impact on grain crude starch in summer maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main results show that DFAA had different impacts on the summer maize growth in the seeding-jointing stage (SJS) and tasseling-grain filling stage (TGS)”
e6“DFAA had no apparent impact on the grain crude starch”
Claim · model-written summary
Drought-flood abrupt alternation had different impacts on summer maize growth in the seeding-jointing and tasseling-grain filling stages.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main results show that DFAA had different impacts on the summer maize growth in the seeding-jointing stage (SJS) and tasseling-grain filling stage (TGS)”
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