Abstract
In order to investigate the effect of soil Cu content on morphological and physiological traits of main root at the tillering and heading stages in association with the grain yield of rice, pot experiments were conducted using the japonica variety Wuxiangjing 14 as materials. Rice root growth was inhibited seriously by soil Cu stress, and the damage to rice root growth were increased with the increment of soil Cu content, similar trends were found under both silty soil and loam soil conditions. At the tillering stage, lower soil Cu content had small effect on the amount of #alpha#-NA oxidation ability per unit dry weight of root and contents of zeatin(Z) + zeatin riboside(ZR) in root, while higher soil Cu content resulted in significant decreases in the root activity per unit dry weight. With the increasing of soil Cu content, the proportion of the root growing before elongation was decreased, while that after elongation was increased, resulting in significant enhancement in the amount of #alpha#-NA oxidation ability per unit root dry weight at the heading stage. Soil Cu treatments had a significant effect on the amount of #alpha#-NA oxidation ability per plant. The higher the soil Cu content was, the smaller the amount of #alpha#-NA oxidation ability per plant at the elongating and heading stages became. With the increasing of soil Cu contednt, the grain yield decreased significantly. Similar trends were found under both silt soil and loam soil conditions. The regression analysis showed that significant positive correlations existed between root dry weight, the amount of #alpha#-NA oxidation ability per plant at heading and grain yield of rice, with correlation coefficients of 0.95~(**) and 0.97~(**), respectively.
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Claims 12
Claim · model-written summary
Soil Cu stress inhibited root growth of japonica rice Wuxiangjing 14.
- Taxon
- Rice
Oryza sativat0 - Material
- Wuxiangjing 14e0
- Treatment
- soil Cu stresse1
- Outcome
- root growthe1
- Direction
- inhibitede1
- Setting
- pot experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e0“pot experiments were conducted using the japonica variety Wuxiangjing 14 as materials”
e1“Rice root growth was inhibited seriously by soil Cu stress, and the damage to rice root growth were increased with the increment of soil Cu content”
Claim · model-written summary
Damage to rice root growth increased with increasing soil Cu content.
- Taxon
- RiceOryza sativat0
- Material
- Wuxiangjing 14e0
- Treatment
- soil Cu contente1
- Outcome
- damage to rice root growthe1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e0“pot experiments were conducted using the japonica variety Wuxiangjing 14 as materials”
e1“Rice root growth was inhibited seriously by soil Cu stress, and the damage to rice root growth were increased with the increment of soil Cu content”
Claim · model-written summary
At the tillering stage, higher soil Cu content significantly decreased root activity per unit dry weight.
- Taxon
- RiceOryza sativat0
- Organ / stage
- tillering stagee3
- Treatment
- higher soil Cu contente3
- Outcome
- root activity per unit dry weighte3
- Direction
- decreasese3
- Comparator
- lower soil Cu contente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e3“At the tillering stage, lower soil Cu content had small effect on the amount of #alpha#-NA oxidation ability per unit dry weight of root and contents of zeatin(Z) + zeatin riboside(ZR) in root, while higher soil Cu content resulted in significant decreases in the root activity per unit dry weight”
Claim · model-written summary
At the tillering stage, lower soil Cu content had a small effect on alpha-NA oxidation ability per unit dry weight of root.
- Taxon
- RiceOryza sativat0
- Organ / stage
- tillering stagee3
- Treatment
- lower soil Cu contente3
- Outcome
- #alpha#-NA oxidation ability per unit dry weight of roote3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e3“At the tillering stage, lower soil Cu content had small effect on the amount of #alpha#-NA oxidation ability per unit dry weight of root and contents of zeatin(Z) + zeatin riboside(ZR) in root, while higher soil Cu content resulted in significant decreases in the root activity per unit dry weight”
Claim · model-written summary
At the tillering stage, lower soil Cu content had a small effect on zeatin and zeatin riboside contents in root.
- Taxon
- RiceOryza sativat0
- Organ / stage
- tillering stagee3
- Treatment
- lower soil Cu contente3
- Outcome
- contents of zeatin(Z) + zeatin riboside(ZR) in roote3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e3“At the tillering stage, lower soil Cu content had small effect on the amount of #alpha#-NA oxidation ability per unit dry weight of root and contents of zeatin(Z) + zeatin riboside(ZR) in root, while higher soil Cu content resulted in significant decreases in the root activity per unit dry weight”
Claim · model-written summary
The proportion of root growing before elongation decreased with increasing soil Cu content.
- Taxon
- RiceOryza sativat0
- Organ / stage
- roote4
- Treatment
- increasing of soil Cu contente4
- Outcome
- the proportion of the root growing before elongatione4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e4“With the increasing of soil Cu content, the proportion of the root growing before elongation was decreased, while that after elongation was increased, resulting in significant enhancement in the amount of #alpha#-NA oxidation ability per unit root dry weight at the heading stage”
Claim · model-written summary
The proportion of root growing after elongation increased with increasing soil Cu content.
- Taxon
- RiceOryza sativat0
- Organ / stage
- roote4
- Treatment
- increasing of soil Cu contente4
- Outcome
- that after elongatione4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e4“With the increasing of soil Cu content, the proportion of the root growing before elongation was decreased, while that after elongation was increased, resulting in significant enhancement in the amount of #alpha#-NA oxidation ability per unit root dry weight at the heading stage”
Claim · model-written summary
Alpha-NA oxidation ability per unit root dry weight was significantly enhanced at the heading stage with increasing soil Cu content.
- Taxon
- RiceOryza sativat0
- Organ / stage
- heading stagee4
- Treatment
- increasing of soil Cu contente4
- Outcome
- #alpha#-NA oxidation ability per unit root dry weighte4
- Direction
- enhancemente4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e4“With the increasing of soil Cu content, the proportion of the root growing before elongation was decreased, while that after elongation was increased, resulting in significant enhancement in the amount of #alpha#-NA oxidation ability per unit root dry weight at the heading stage”
Claim · model-written summary
Alpha-NA oxidation ability per plant decreased with higher soil Cu content at the elongating and heading stages.
- Taxon
- RiceOryza sativat0
- Organ / stage
- elongating and heading stagese5
- Treatment
- soil Cu contente5
- Outcome
- #alpha#-NA oxidation ability per plante5
- Direction
- smallere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e5“The higher the soil Cu content was, the smaller the amount of #alpha#-NA oxidation ability per plant at the elongating and heading stages became”
Claim · model-written summary
Grain yield of rice decreased significantly with increasing soil Cu content on silty and loam soils.
- Taxon
- RiceOryza sativat0
- Treatment
- increasing of soil Cu contednte6
- Outcome
- grain yielde6
- Direction
- decreasede6
- Setting
- silty soil and loam soile2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e6“With the increasing of soil Cu contednt, the grain yield decreased significantly”
e2“similar trends were found under both silty soil and loam soil conditions”
Claim · model-written summary
Root dry weight was positively correlated with grain yield of rice (r = 0.95).
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e7“significant positive correlations existed between root dry weight, the amount of #alpha#-NA oxidation ability per plant at heading and grain yield of rice, with correlation coefficients of 0.95~(**) and 0.97~(**), respectively”
Claim · model-written summary
Alpha-NA oxidation ability per plant at heading was positively correlated with grain yield of rice (r = 0.97).
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Soil Cu Content on Root Traits in Association with Grain Yield of Rice”
e7“significant positive correlations existed between root dry weight, the amount of #alpha#-NA oxidation ability per plant at heading and grain yield of rice, with correlation coefficients of 0.95~(**) and 0.97~(**), respectively”
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