Abstract
Water stress effects on seed yield and water use efficiency of three indeterminate guar (Cyamopsis tetragonoloba L. Taub.) lines (L12, L18 and L33) were investigated in the experimental farm of the Faculty of Agriculture, University of Khartoum for two seasons (2005 and 2006). The guar lines were subjected to water stress induced by withholding irrigation for three weeks. Three water stress treatments were imposed 35, 50 and 65 days after sowing (DAS), and a control treatment irrigated every two weeks. The treatments were arranged in a split-plot design with three replications; with water regime treatments assigned to the main plots and guar lines to the subplots. Data were recorded on seed yield (t.ha–1), number of pods per plant, 1000- seed weight (g), harvest index (HI) and water use efficiency at harvest. The results indicated that exposure of several cultivars of guar to water stress at the three stages of growth didn’t induce any significant effect on number of pods per plant, 1000-seed weight, seed yield and water use efficiency (WUE). On the other hand there was significant reduction in harvest index as a result of imposition of water stress at 35 and 50 DAS. It was also evident that plants re-watered after the stress recovered and had the same values as the control treatment.
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Claims 4
Claim · model-written summary
Water stress at the three growth stages did not significantly change guar pod number, seed weight or seed yield.
- Taxon
- guar
Cyamopsis tetragonolobae0 - Treatment
- water stress at the three stages of growthe0
- Outcome
- number of pods per plant, 1000-seed weight, seed yielde0
- Direction
- didn’t induce any significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicated that exposure of several cultivars of guar to water stress at the three stages of growth didn’t induce any significant effect on number of pods per plant, 1000-seed weight, seed yield and water use efficiency (WUE).”
Claim · model-written summary
Water stress at the three growth stages did not significantly change guar water use efficiency.
- Taxon
- guarCyamopsis tetragonolobae0
- Treatment
- water stress at the three stages of growthe0
- Outcome
- water use efficiency (WUE)e0
- Direction
- didn’t induce any significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicated that exposure of several cultivars of guar to water stress at the three stages of growth didn’t induce any significant effect on number of pods per plant, 1000-seed weight, seed yield and water use efficiency (WUE).”
Claim · model-written summary
Water stress at 35 and 50 days after sowing significantly reduced guar harvest index.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- water stress at 35 and 50 DASe0
- Outcome
- harvest indexe0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the other hand there was significant reduction in harvest index as a result of imposition of water stress at 35 and 50 DAS.”
t0“guar”
Claim · model-written summary
Guar plants rewatered after stress recovered to control values.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- re-watered after the stresse0
- Outcome
- recoverede0
- Direction
- same valuese0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was also evident that plants re-watered after the stress recovered and had the same values as the control treatment.”
t0“guar”
The same questions in other papers
drought · physiology: water · Cyamopsis tetragonoloba (cluster bean)Results agree
2 papers in the same direction as this paper
- negative
- negative
drought · yield · Cyamopsis tetragonoloba (cluster bean)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.