Abstract
Abstract In 1994 four field experiments were conducted at two sites (northern and southern Spain), and in two environments at each site (irrigated and dryland conditions) in order to compare the effect of drought with the stress caused by chemical treatment with a senescing agent (potassium iodide, KI). A concentration of 0.3 % of KI was applied 10 days after anthesis on triticale Trujillo (X Tnticosecale Wittmack), and four nearisogenic lines derived from it. The effect of the senescing agent on grain yield was higher in irrigated conditions than in dryland. The reduction in grain yield due to drought was higher than that caused by KI treatment, but both responses were correlated. Drought and KI treatment had a different effect on yield components since water stress previous to anthesis markedly reduced the number of spikes per m 2 . The effect of the chemical on the number of grains per spike was similar and correlated significantly with the reduction caused by drought. Dry matter accumulation of the grains decreased rapidly following chemical spray due to an important effect of KI on the grain filling rate. No association was found between the reduction in grain weight caused by drought and by KI treatment.
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Claims 8
Claim · model-written summary
KI had a greater effect on grain yield under irrigation than dryland conditions.
- Taxon
- triticale
×Triticosecalet0 - Treatment
- senescing agente0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- drylande0
- Setting
- irrigated conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of the senescing agent on grain yield was higher in irrigated conditions than in dryland.”
t0“Triticale”
Claim · model-written summary
Drought reduced grain yield more than KI treatment.
- Taxon
- triticale×Triticosecalet0
- Treatment
- droughte0
- Outcome
- grain yielde0
- Direction
- reductione0
- Comparator
- KI treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction in grain yield due to drought was higher than that caused by KI treatment”
t0“Triticale”
Claim · model-written summary
Yield responses to drought and KI were correlated.
- Taxon
- triticale×Triticosecalet0
- Treatment
- droughte0
- Outcome
- responsese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction in grain yield due to drought was higher than that caused by KI treatment, but both responses were correlated.”
t0“Triticale”
Claim · model-written summary
Preanthesis water stress markedly reduced spike number.
- Taxon
- triticale×Triticosecalet0
- Treatment
- water stress previous to anthesise0
- Outcome
- number of spikes per m 2e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water stress previous to anthesis markedly reduced the number of spikes per m 2”
t0“Triticale”
Claim · model-written summary
KI and drought caused similar reductions in grains per spike.
- Taxon
- triticale×Triticosecalet0
- Treatment
- chemicale0
- Outcome
- number of grains per spikee0
- Direction
- reductione0
- Comparator
- droughte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of the chemical on the number of grains per spike was similar and correlated significantly with the reduction caused by drought.”
t0“Triticale”
Claim · model-written summary
Grain dry matter accumulation fell rapidly after chemical spraying.
- Taxon
- triticale×Triticosecalet0
- Organ / stage
- grainse0
- Treatment
- chemical spraye0
- Outcome
- Dry matter accumulation of the grainse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry matter accumulation of the grains decreased rapidly following chemical spray due to an important effect of KI on the grain filling rate.”
t0“Triticale”
Claim · model-written summary
KI affected grain filling rate.
- Taxon
- triticale×Triticosecalet0
- Treatment
- KIe0
- Outcome
- grain filling ratee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“important effect of KI on the grain filling rate”
t0“Triticale”
Claim · model-written summary
Drought and KI reductions in grain weight were not associated.
- Taxon
- triticale×Triticosecalet0
- Treatment
- droughte0
- Outcome
- reduction in grain weighte0
- Direction
- no associatione0
- Comparator
- KI treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No association was found between the reduction in grain weight caused by drought and by KI treatment.”
t0“Triticale”
The same questions in other papers
application · yield · x Triticosecale (triticale)Positive and negative results
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- positive
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See all 19 papers →drought · yield · x Triticosecale (triticale)Results agree
13 papers in the same direction as this paper
- negative
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See all 14 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.