Abstract
Multiple frequently interactive stress factors naturally influence plant due to global change. The leaf’s hormone concentrations, main-stem and branch yield response to the combination of shade and drought were studied in a greenhouse experiment during 2009 and 2010 seasons. Pot experiments were conducted under shade of maize (LI) and normal irradiance (HI). Shade stress was removed once maize was harvested. Manipulative progressive soil drying period at branching stages under good soil conditions (HW) and water stress treatment (LW) were applied in 2010, while well-watered (WW) and moderate drought (MD) were applied in 2009. Under shade stress, seedling height and first internode length increased, stem diameter decreased, abscisic acid (ABA) and zeatin (ZT) concentration decreased, while indole acetic acid (IAA) and gibberellins 3 (GA3) concentration increased. More also, branch numbers, pod number of branches and seed number of branches increased. Branch yield did not reduce significantly under shade stress, which was related to the decrease of ABA and IAA. Based on the results, soybean yield decreased under shade and drought stresses was mainly due to the yield reduction of the main-stem. Key words: Abscisic acid, indole acetic acid, relay strip intercropping system, soybean, zeatin.
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Claims 8
Claim · model-written summary
Shade increased seedling height and first internode length.
- Taxon
- soybean
Glycine maxt0 - Treatment
- shade stresse0
- Outcome
- seedling height and first internode lengthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under shade stress, seedling height and first internode length increased”
t0“soybean”
Claim · model-written summary
Shade decreased stem diameter.
- Taxon
- soybeanGlycine maxt0
- Treatment
- shade stresse1
- Outcome
- stem diametere0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stem diameter decreased”
e1“Under shade stress”
t0“soybean”
Claim · model-written summary
Shade decreased abscisic acid and zeatin concentrations.
- Taxon
- soybeanGlycine maxt0
- Treatment
- shade stresse1
- Outcome
- abscisic acid (ABA) and zeatin (ZT) concentratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abscisic acid (ABA) and zeatin (ZT) concentration decreased”
e1“Under shade stress”
t0“soybean”
Claim · model-written summary
Shade increased indole acetic acid and gibberellins 3 concentrations.
- Taxon
- soybeanGlycine maxt0
- Treatment
- shade stresse1
- Outcome
- indole acetic acid (IAA) and gibberellins 3 (GA3) concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indole acetic acid (IAA) and gibberellins 3 (GA3) concentration increased”
e1“Under shade stress”
t0“soybean”
Claim · model-written summary
Shade increased branch number, branch pod number, and branch seed number.
- Taxon
- soybeanGlycine maxt0
- Treatment
- shade stresse1
- Outcome
- branch numbers, pod number of branches and seed number of branchese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“branch numbers, pod number of branches and seed number of branches increased”
e1“Under shade stress”
t0“soybean”
Claim · model-written summary
Branch yield was not significantly reduced under shade.
- Taxon
- soybeanGlycine maxt0
- Treatment
- shade stresse0
- Outcome
- Branch yielde0
- Direction
- did not reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Branch yield did not reduce significantly under shade stress”
t0“soybean”
Claim · model-written summary
The authors related the branch yield response under shade to decreased ABA and IAA.
- Taxon
- soybeanGlycine maxt0
- Compound
- ABA and IAAe0
- Outcome
- Branch yielde1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which was related to the decrease of ABA and IAA”
e1“Branch yield did not reduce significantly under shade stress”
t0“soybean”
Claim · model-written summary
The authors attributed lower soybean yield under shade and drought to reduced main-stem yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- shade and drought stressese0
- Outcome
- soybean yielde0
- Direction
- decreasede0
- Qualifier
- yield reduction of the main-steme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean yield decreased under shade and drought stresses was mainly due to the yield reduction of the main-stem”
The same questions in other papers
shade · yield · Glycine max (soybean)Results differ
47 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
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See all 54 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.