Abstract
Water deficit during the grain filling stage is a major threat to sustainable crop production, especially in arid and semi-arid regions. This study aims to investigate the comprehensive effects of water deficit on the photosynthetic characteristics, dry matter accumulation, and yield formation of triticale (× Triticosecale wittmack). The photosynthetic characteristics of the flag leaf and spike organs (awn, glume, and lemma) and their relationship with yield were analyzed during the grain filling stage when the triticale plant was subjected to adequate water supply and water deficit 0, 7, 14, 20, and 25 days after anthesis. The results showed that under normal water supply, photosynthesis was reduced by 27.5% and 34.4% in awned and awnless spikes, respectively, at 25 days after anthesis (25DAAs), compared to flag leaves. Under water deficit at 25DAAs, photosynthesis was reduced by 50.5% and 60.9% in awned and awnless spikes, respectively. Water deficit reduced RWC and chlorophyll content in flag leaf and spike organs, and the changes in RWC and chlorophyll content in spike organs were less than those in flag leaf. The differences in grain yield, biomass, and harvest index of awned and awnless triticale were not significant under adequate water supply. Grain yield of awned and awnless triticale was reduced by 23.7 and 24.6%, respectively, under water deficit compared to adequate water supply. Our results suggest that awnless plants suffer from drought more than awned plants in grain-filling stage, where the role of awns is critical.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Under normal water supply at 25 days after anthesis, photosynthesis in awned spikes was 27.5% lower than in flag leaves.
- Taxon
- Triticale
×Triticosecalet0 - Organ / stage
- awned and awnless spikese0
- Outcome
- photosynthesise0
- Direction
- reducede0
- Value
- 27.5%e0
- Comparator
- flag leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Triticale”
e0“under normal water supply, photosynthesis was reduced by 27.5% and 34.4% in awned and awnless spikes, respectively, at 25 days after anthesis (25DAAs), compared to flag leaves”
Claim · model-written summary
Under normal water supply at 25 days after anthesis, photosynthesis in awnless spikes was 34.4% lower than in flag leaves.
- Taxon
- Triticale×Triticosecalet0
- Organ / stage
- awnless spikese0
- Outcome
- photosynthesise0
- Direction
- reducede0
- Value
- 34.4%e0
- Comparator
- flag leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Triticale”
e0“under normal water supply, photosynthesis was reduced by 27.5% and 34.4% in awned and awnless spikes, respectively, at 25 days after anthesis (25DAAs), compared to flag leaves”
Claim · model-written summary
Water deficit at 25 days after anthesis reduced photosynthesis by 50.5% in awned spikes.
- Taxon
- Triticale×Triticosecalet0
- Organ / stage
- awnede0
- Treatment
- water deficite0
- Outcome
- photosynthesise0
- Direction
- reducede0
- Value
- 50.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Triticale”
e0“Under water deficit at 25DAAs, photosynthesis was reduced by 50.5% and 60.9% in awned and awnless spikes, respectively”
Claim · model-written summary
Water deficit at 25 days after anthesis reduced photosynthesis by 60.9% in awnless spikes.
- Taxon
- Triticale×Triticosecalet0
- Organ / stage
- awnless spikese0
- Treatment
- water deficite0
- Outcome
- photosynthesise0
- Direction
- reducede0
- Value
- 60.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Triticale”
e0“Under water deficit at 25DAAs, photosynthesis was reduced by 50.5% and 60.9% in awned and awnless spikes, respectively”
Claim · model-written summary
Water deficit reduced relative water content and chlorophyll content in flag leaf and spike organs.
- Taxon
- Triticale×Triticosecalet0
- Organ / stage
- flag leaf and spike organse0
- Treatment
- Water deficite0
- Outcome
- RWC and chlorophyll contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Triticale”
e0“Water deficit reduced RWC and chlorophyll content in flag leaf and spike organs”
Claim · model-written summary
Changes in RWC and chlorophyll content under water deficit were smaller in spike organs than in flag leaf.
- Taxon
- Triticale×Triticosecalet0
- Organ / stage
- spike organse0
- Outcome
- changes in RWC and chlorophyll contente0
- Direction
- lesse0
- Comparator
- flag leafe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Triticale”
e0“the changes in RWC and chlorophyll content in spike organs were less than those in flag leaf”
Claim · model-written summary
Grain yield, biomass and harvest index did not differ significantly between awned and awnless triticale under adequate water supply.
- Taxon
- triticale×Triticosecalee0
- Outcome
- grain yield, biomass, and harvest indexe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Triticale”
e0“The differences in grain yield, biomass, and harvest index of awned and awnless triticale were not significant under adequate water supply”
Claim · model-written summary
Water deficit reduced grain yield of awned triticale by 23.7% relative to adequate water supply.
- Taxon
- triticale×Triticosecalee0
- Material
- awnede0
- Treatment
- water deficite0
- Outcome
- Grain yielde0
- Direction
- reducede0
- Value
- 23.7e0
- Comparator
- adequate water supplye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Triticale”
e0“Grain yield of awned and awnless triticale was reduced by 23.7 and 24.6%, respectively, under water deficit compared to adequate water supply”
Claim · model-written summary
Water deficit reduced grain yield of awnless triticale by 24.6% relative to adequate water supply.
- Taxon
- triticale×Triticosecalee0
- Material
- awnlesse0
- Treatment
- water deficite0
- Outcome
- Grain yielde0
- Direction
- reducede0
- Value
- 24.6%e0
- Comparator
- adequate water supplye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Triticale”
e0“Grain yield of awned and awnless triticale was reduced by 23.7 and 24.6%, respectively, under water deficit compared to adequate water supply”
Claim · model-written summary
Awnless triticale plants suffer more from drought than awned plants in the grain-filling stage.
- Taxon
- Triticale×Triticosecalet0
- Organ / stage
- grain-filling stagee0
- Outcome
- suffer from droughte0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Triticale”
e0“awnless plants suffer from drought more than awned plants in grain-filling stage”
The same questions in other papers
drought · physiology: photosynthesis · x Triticosecale (triticale)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
1 paper more in this group
See all 5 papers →drought · physiology: water · x Triticosecale (triticale)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
2 papers more in this group
See all 6 papers →drought · yield · x Triticosecale (triticale)Results agree
13 papers in the same direction as this paper
- negative
- negative
- negative
10 papers more in this group
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.