Abstract
Salt stress is known to affect adversely shoot apex development in cereals. This study was conducted to determine rate and duration of leaf and spikelet primordia initiation as related to final leaf and spikelet numbers in salt‐stressed wheat ( Triticum oestivum L.). Early shoot development of two hard red spring wheat cultivars, Yecora Rojo and Anza, was studied in both greenhouse sand cultures and outdoor field lysimeters. In each case, two saline treatments were compared with a nonsaline control treatment. The sand cultures were irrigated with complete nutrient solutions to which NaCI and CaCI 2 (2:1 molar ratio) were added to achieve electrical conductivities (K 1W ) of 1.7, 12.2, and 15.1 dS m −1 . Lysimeters were irrigated with tap water salinized to K lW levels of 0.8, 11.4, and 17.1 dS m −1 . Timing of primordium initiation was expressed in accumulated thermal time measured in the soil (°C d soil ). A three‐piece linear‐spline model was developed to facilitate the statistical analysis and interpretation of primordium initiation. Parameters of the model corresponded to morphologically significant events. In both experimental locations, each genotype exhibited a similar response to increasing salinity. The rate of leaf primordium initiation decreased while the duration of this phase was unchanged. Salinity had no effect on the rate of spikelet primordium initiation of the genotypes, but the duration of this phase was shortened. As a result, the number of leaves on the main stem and the number of spikelets per spike were significantly reduced by salinity and the yield potential of both genotypes was severely limited.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 7
Claim · model-written summary
Increasing salinity decreased the rate of leaf primordium initiation in wheat
- Taxon
- wheat
Triticum aestivume1 - Material
- Yecora Rojo and Anzae1
- Treatment
- increasing salinitye3
- Outcome
- rate of leaf primordium initiatione4
- Direction
- decreasede4
- Comparator
- nonsaline control treatmente2
- Setting
- greenhouse sand cultures and outdoor field lysimeterse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Early shoot development of two hard red spring wheat cultivars, Yecora Rojo and Anza, was studied in both greenhouse sand cultures and outdoor field lysimeters”
e2“In each case, two saline treatments were compared with a nonsaline control treatment”
e3“In both experimental locations, each genotype exhibited a similar response to increasing salinity”
e4“The rate of leaf primordium initiation decreased while the duration of this phase was unchanged”
Claim · model-written summary
Increasing salinity left the duration of leaf primordium initiation unchanged in wheat
- Taxon
- wheatTriticum aestivume1
- Material
- Yecora Rojo and Anzae1
- Treatment
- increasing salinitye3
- Outcome
- duration of this phasee4
- Direction
- unchangede4
- Comparator
- nonsaline control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Early shoot development of two hard red spring wheat cultivars, Yecora Rojo and Anza, was studied in both greenhouse sand cultures and outdoor field lysimeters”
e2“In each case, two saline treatments were compared with a nonsaline control treatment”
e3“In both experimental locations, each genotype exhibited a similar response to increasing salinity”
e4“The rate of leaf primordium initiation decreased while the duration of this phase was unchanged”
Claim · model-written summary
Salinity had no effect on the rate of spikelet primordium initiation in wheat
- Taxon
- wheatTriticum aestivume1
- Material
- Yecora Rojo and Anzae1
- Treatment
- Salinitye5
- Outcome
- rate of spikelet primordium initiatione5
- Direction
- no effecte5
- Comparator
- nonsaline control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Early shoot development of two hard red spring wheat cultivars, Yecora Rojo and Anza, was studied in both greenhouse sand cultures and outdoor field lysimeters”
e2“In each case, two saline treatments were compared with a nonsaline control treatment”
e5“Salinity had no effect on the rate of spikelet primordium initiation of the genotypes, but the duration of this phase was shortened”
Claim · model-written summary
Salinity shortened the spikelet primordium initiation phase in wheat
- Taxon
- wheatTriticum aestivume1
- Treatment
- Salinitye5
- Outcome
- duration of this phasee5
- Direction
- shortenede5
- Qualifier
- spikelet primordium initiatione5
- Comparator
- nonsaline control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Early shoot development of two hard red spring wheat cultivars, Yecora Rojo and Anza, was studied in both greenhouse sand cultures and outdoor field lysimeters”
e2“In each case, two saline treatments were compared with a nonsaline control treatment”
e5“Salinity had no effect on the rate of spikelet primordium initiation of the genotypes, but the duration of this phase was shortened”
Claim · model-written summary
Salinity significantly reduced the number of main-stem leaves and spikelets per spike in wheat
- Taxon
- wheatTriticum aestivume1
- Treatment
- salinitye6
- Outcome
- the number of leaves on the main stem and the number of spikelets per spikee6
- Direction
- reducede6
- Comparator
- nonsaline control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Early shoot development of two hard red spring wheat cultivars, Yecora Rojo and Anza, was studied in both greenhouse sand cultures and outdoor field lysimeters”
e2“In each case, two saline treatments were compared with a nonsaline control treatment”
e6“As a result, the number of leaves on the main stem and the number of spikelets per spike were significantly reduced by salinity and the yield potential of both genotypes was severely limited”
Claim · model-written summary
Salinity severely limited the yield potential of wheat genotypes
- Taxon
- wheatTriticum aestivume1
- Treatment
- salinitye6
- Outcome
- yield potentiale6
- Direction
- limitede6
- Comparator
- nonsaline control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Early shoot development of two hard red spring wheat cultivars, Yecora Rojo and Anza, was studied in both greenhouse sand cultures and outdoor field lysimeters”
e2“In each case, two saline treatments were compared with a nonsaline control treatment”
e6“As a result, the number of leaves on the main stem and the number of spikelets per spike were significantly reduced by salinity and the yield potential of both genotypes was severely limited”
Claim · model-written summary
Both wheat genotypes responded similarly to increasing salinity in both experimental locations
- Taxon
- wheatTriticum aestivume1
- Material
- Yecora Rojo and Anzae1
- Outcome
- similar responsee3
- Qualifier
- increasing salinitye3
- Setting
- In both experimental locationse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Early shoot development of two hard red spring wheat cultivars, Yecora Rojo and Anza, was studied in both greenhouse sand cultures and outdoor field lysimeters”
e3“In both experimental locations, each genotype exhibited a similar response to increasing salinity”
The same questions in other papers
salinity · yield · Triticum aestivum (wheat)Positive and negative results
196 papers in the same direction as this paper · 30 in the opposite direction
- positive
- no effect
- positive
223 papers more in this group
See all 227 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.