Abstract
A systematic study was conducted with roots of maize genotypes different in tolerance to drought in the field to investigate the relationship between root anatomical structure and tolerance to drought of maize.The microstructure of basilar and middle root and root hair of primary root and different layers of secondary root was studied by hand sectioning and routine mineral wax movie making.The diversity of maize genotypes with different tolerance to drought was compared,and the relationship between microstructure of maize root and tolerance to drought was analyzed.The result showed that compared with the maize with low tolerance to drought,the primary radicel of maize with high tolerance to drought had fewer cortex cell layer number,smaller diameter of metaxylem vessel and greater metaxylem vessel amount.The various secondary roots had fewer cortex cell layer number,the metaxylem vessel was greater and the diameter was smaller.
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Claims 6
Claim · model-written summary
High drought-tolerance maize had fewer primary radicle cortex cell layers than low-tolerance maize.
- Material
- maize with high tolerance to droughte0
- Organ / stage
- primary radicele0
- Outcome
- cortex cell layer numbere0
- Direction
- fewere0
- Comparator
- maize with low tolerance to droughte0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with the maize with low tolerance to drought,the primary radicel of maize with high tolerance to drought had fewer cortex cell layer number”
Claim · model-written summary
High drought-tolerance maize had smaller primary radicle metaxylem vessel diameter.
- Material
- maize with high tolerance to droughte0
- Organ / stage
- primary radicele0
- Outcome
- diameter of metaxylem vessele0
- Direction
- smallere0
- Comparator
- maize with low tolerance to droughte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with the maize with low tolerance to drought,the primary radicel of maize with high tolerance to drought had fewer cortex cell layer number,smaller diameter of metaxylem vessel”
Claim · model-written summary
High drought-tolerance maize had a greater primary radicle metaxylem vessel amount.
- Material
- maize with high tolerance to droughte0
- Organ / stage
- primary radicele0
- Outcome
- metaxylem vessel amounte0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the primary radicel of maize with high tolerance to drought had fewer cortex cell layer number,smaller diameter of metaxylem vessel and greater metaxylem vessel amount”
Claim · model-written summary
Secondary roots of high drought-tolerance maize had fewer cortex cell layers.
- Material
- Maize Genotypes Different in Tolerance to Droughtt0
- Organ / stage
- secondary rootse0
- Outcome
- cortex cell layer numbere0
- Direction
- fewere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The various secondary roots had fewer cortex cell layer number,the metaxylem vessel was greater and the diameter was smaller”
t0“Maize Genotypes Different in Tolerance to Drought”
Claim · model-written summary
Secondary roots of high drought-tolerance maize had greater metaxylem vessels.
- Material
- Maize Genotypes Different in Tolerance to Droughtt0
- Organ / stage
- secondary rootse0
- Outcome
- metaxylem vessele0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The various secondary roots had fewer cortex cell layer number,the metaxylem vessel was greater and the diameter was smaller”
t0“Maize Genotypes Different in Tolerance to Drought”
Claim · model-written summary
Secondary roots of high drought-tolerance maize had smaller metaxylem vessel diameter.
- Material
- Maize Genotypes Different in Tolerance to Droughtt0
- Organ / stage
- secondary rootse0
- Outcome
- diametere0
- Direction
- smallere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The various secondary roots had fewer cortex cell layer number,the metaxylem vessel was greater and the diameter was smaller”
t0“Maize Genotypes Different in Tolerance to Drought”