Abstract
Seedling establishment of dryland crops in semiarid and arid zones is limited by precipitation. Spring wheat (Triticum aestivum L. emend. Thell.) generally is sown in dry soil in the dryland regions of Israel before the rainy season starts. We compared the effects of no-tillage, conventional tillage, and plant growth regulators on wheat seedling growth to identify the optimal crop management system for seedling establishment in dryland farming. Experiments were conducted during 1998 and 1999 at the Gilat Experimental Station located in southern Israel (annual precipitation of 222 and 72 mm for 1998 and 1999, respectively; soil type is sandy loam loess—Torrifluvents). Neither inhibitors of gibberellin synthesis (chlorocoline chloride, paclobutrazol, and trinexapac-ethyl) nor monopotassium phosphate (KH2PO4) enhanced seedling survival under drought stress when sprayed on seedlings at the two-leaf stage. No-tillage led to increases in water content in the upper (0–30 cm) soil layer and in seedling water content and seedling biomass. No-tillage management also maintained seedling viability compared with the control, with seedlings surviving as long as 35 d without precipitation. No-tillage management allows successful seedling establishment and growth after a dry period that follows germination.
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Claims 5
Claim · model-written summary
Gibberellin synthesis inhibitors did not enhance seedling survival under drought stress.
- Taxon
- Wheat
Triticum aestivumt0 - Organ / stage
- two-leaf stagee0
- Treatment
- inhibitors of gibberellin synthesis (chlorocoline chloride, paclobutrazol, and trinexapac-ethyl)e0
- Outcome
- seedling survivale0
- Direction
- Neithere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither inhibitors of gibberellin synthesis (chlorocoline chloride, paclobutrazol, and trinexapac-ethyl) nor monopotassium phosphate (KH2PO4) enhanced seedling survival under drought stress when sprayed on seedlings at the two-leaf stage”
t0“Wheat Seedlings”
Claim · model-written summary
Monopotassium phosphate did not enhance seedling survival under drought stress.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- monopotassium phosphate (KH2PO4)e0
- Outcome
- seedling survivale0
- Direction
- nore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nor monopotassium phosphate (KH2PO4) enhanced seedling survival under drought stress when sprayed on seedlings at the two-leaf stage”
t0“Wheat Seedlings”
Claim · model-written summary
No-tillage increased upper soil layer water content.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- No-tillagee0
- Outcome
- water content in the upper (0–30 cm) soil layere0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No-tillage led to increases in water content in the upper (0–30 cm) soil layer”
t0“Wheat Seedlings”
Claim · model-written summary
No-tillage increased seedling water content and biomass.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- No-tillagee0
- Outcome
- seedling water content and seedling biomasse0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No-tillage led to increases in water content in the upper (0–30 cm) soil layer and in seedling water content and seedling biomass”
t0“Wheat Seedlings”
Claim · model-written summary
No-tillage maintained seedling viability relative to the control for up to 35 days without precipitation.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- No-tillage managemente0
- Outcome
- seedling viabilitye0
- Direction
- maintainede0
- Value
- 35 de0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No-tillage management also maintained seedling viability compared with the control, with seedlings surviving as long as 35 d without precipitation”
t0“Wheat Seedlings”
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