Abstract
Objective: To evaluate the response corn hybrids have on their growth of aerial and root parts, transpiration,and water use efficiency during their early vegetative stage in irrigation and drought conditions.Design/methodology/approach: A randomized complete block design with a factorial arrangement, threerepetitions, three corn hybrids and two humidity levels were used. The evaluated variables were: plant height,leaf area, root length, dry weight of the aerial and root part of the plants, efficiency in the water use and totalplant transpiration.Results: The leaf area and dry weight data of the aerial parts of the assessed plants were greater in irrigationthan in drought; in contrast, root length, dry root weight and water use efficiency were higher in drought. SV 3245 registered a higher total transpiration per plant; SV 3243 and ASGROW 7543 showed higher dry weight in their aerial parts; ASGROW 7543 accumulated a greater dry weight at their roots and was more water usage efficient. The experiments indicated interaction for root length, dry root weight and efficiency in water use.Limitations on study/implications: The drought caused seedlings’ death at 28 days after sowing (dds), therefore, it was not possible to continue the evaluations from then on.Findings/conclusions: The drought decreased the growth of the aerial parts of the plants and increased the root system and efficiency in their water usage.
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Claims 8
Claim · model-written summary
Leaf area and aerial dry weight of corn plants were greater under irrigation than under drought.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- droughte0
- Outcome
- leaf area and dry weight data of the aerial partse0
- Direction
- greatere0
- Comparator
- irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf area and dry weight data of the aerial parts of the assessed plants were greater in irrigationthan in drought”
t0“corn”
Claim · model-written summary
Root length, dry root weight and water use efficiency of corn were higher under drought than under irrigation.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- droughte0
- Outcome
- root length, dry root weight and water use efficiencye0
- Direction
- highere0
- Comparator
- irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf area and dry weight data of the aerial parts of the assessed plants were greater in irrigationthan in drought; in contrast, root length, dry root weight and water use efficiency were higher in drought”
t0“corn”
Claim · model-written summary
The corn hybrid SV 3245 registered a higher total transpiration per plant.
- Taxon
- cornZea mays subsp. mayst0
- Material
- SV 3245e0
- Outcome
- total transpiration per plante0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SV 3245 registered a higher total transpiration per plant”
t0“corn”
Claim · model-written summary
The corn hybrid SV 3243 showed higher dry weight in its aerial parts.
- Taxon
- cornZea mays subsp. mayst0
- Material
- SV 3243e0
- Outcome
- dry weight in their aerial partse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SV 3243 and ASGROW 7543 showed higher dry weight in their aerial parts”
t0“corn”
Claim · model-written summary
The corn hybrid ASGROW 7543 showed higher dry weight in its aerial parts.
- Taxon
- cornZea mays subsp. mayst0
- Material
- ASGROW 7543e0
- Outcome
- dry weight in their aerial partse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SV 3243 and ASGROW 7543 showed higher dry weight in their aerial parts”
t0“corn”
Claim · model-written summary
The corn hybrid ASGROW 7543 accumulated a greater root dry weight and was more water use efficient.
- Taxon
- cornZea mays subsp. mayst0
- Material
- ASGROW 7543e0
- Outcome
- dry weight at their roots and was more water usage efficiente0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASGROW 7543 accumulated a greater dry weight at their roots and was more water usage efficient”
t0“corn”
Claim · model-written summary
The experiments indicated an interaction for root length, dry root weight and water use efficiency in corn.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- interaction for root length, dry root weight and efficiency in water usee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The experiments indicated interaction for root length, dry root weight and efficiency in water use”
t0“corn”
Claim · model-written summary
Drought caused corn seedlings to die at 28 days after sowing.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- droughte0
- Outcome
- seedlings’ deathe0
- Qualifier
- 28 days after sowinge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The drought caused seedlings’ death at 28 days after sowing”
t0“corn”
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