Abstract
ABSTRACT Phosphorus (P) deficiency and low P-use efficiency are induced by soil properties, especially in calcareous soils, which are dominant in semi-arid regions of the world such as the Mediterranean region. Alternative approaches to P fertilization involve exploiting plant genetics in order to achieve more efficient use of P by the growing crop. Accordingly, in a greenhouse pot experiment, we evaluated P-efficiency in wheat genotypes grown in typical calcareous soils in southern Turkey. Ten common local genotypes were grown in six soil series for eight weeks using five P application rates (0, 25, 50, 100, and 200 mg P kg−1). Dry matter (DM) yield and P content were significantly increased by increasing P rates, with significant differences between soils. Some genotypes performed better under P stress because of better P utilization efficiency. Shoot DM was the most sensitive indicator of genetic variability under P-deficient conditions. Genotypes classified as efficient-responsive (Adana-99, 1014, Golia, Balatilla) had above average DM yield when P was not added, and responded well to P applications; efficient-non-responsive genotypes (Firat-93, Seri-82, Genc-99, Panda) had below average DM yield, but responded to P applications; inefficient-non-responsive genotypes (Fuat Bey and Ceyhan-99) had below average DM yield; and no genotypes were in the inefficient responsive category. Such P response categorization is needed for better breeding programs for nutrient-use efficiency. The study may aid in selecting P-efficient genotypes in low-P soils, especially where little P is used. The use of P-efficient genotypes should be seen as complement to, rather than a substitute for, chemical P fertilization depending on local conditions.
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Claims 10
Claim · model-written summary
Increasing phosphorus rates significantly increased wheat dry matter yield.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- increasing P ratese0
- Outcome
- Dry matter (DM) yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry matter (DM) yield and P content were significantly increased by increasing P rates, with significant differences between soils.”
t0“Wheat Genotypes”
Claim · model-written summary
Increasing phosphorus rates significantly increased wheat phosphorus content.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- increasing P ratese0
- Outcome
- P contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry matter (DM) yield and P content were significantly increased by increasing P rates, with significant differences between soils.”
t0“Wheat Genotypes”
Claim · model-written summary
Soils differed significantly in dry matter yield and phosphorus content.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- differences between soilse0
- Setting
- soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry matter (DM) yield and P content were significantly increased by increasing P rates, with significant differences between soils.”
t0“Wheat Genotypes”
Claim · model-written summary
Some genotypes performed better under phosphorus stress due to better phosphorus utilization efficiency.
- Taxon
- WheatTriticum aestivumt0
- Material
- Some genotypese0
- Outcome
- performed better under P stresse0
- Qualifier
- better P utilization efficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some genotypes performed better under P stress because of better P utilization efficiency.”
t0“Wheat Genotypes”
Claim · model-written summary
Shoot dry matter was the most sensitive indicator of genetic variability under phosphorus deficiency.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- Shoote0
- Outcome
- indicator of genetic variabilitye0
- Comparator
- most sensitivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot DM was the most sensitive indicator of genetic variability under P-deficient conditions.”
t0“Wheat Genotypes”
Claim · model-written summary
Adana-99, 1014, Golia, and Balatilla had above average dry matter yield without added phosphorus and responded well to phosphorus.
- Taxon
- WheatTriticum aestivumt0
- Material
- Adana-99, 1014, Golia, Balatillae0
- Outcome
- DM yielde0
- Direction
- above averagee0
- Qualifier
- when P was not addede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“efficient-responsive (Adana-99, 1014, Golia, Balatilla) had above average DM yield when P was not added, and responded well to P applications”
t0“Wheat Genotypes”
Claim · model-written summary
Firat-93, Seri-82, Genc-99, and Panda had below average dry matter yield but responded to phosphorus applications.
- Taxon
- WheatTriticum aestivumt0
- Material
- Firat-93, Seri-82, Genc-99, Pandae0
- Outcome
- DM yielde0
- Direction
- below averagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“efficient-non-responsive genotypes (Firat-93, Seri-82, Genc-99, Panda) had below average DM yield, but responded to P applications”
t0“Wheat Genotypes”
Claim · model-written summary
Fuat Bey and Ceyhan-99 had below average dry matter yield.
- Taxon
- WheatTriticum aestivumt0
- Material
- Fuat Bey and Ceyhan-99e0
- Outcome
- DM yielde0
- Direction
- below averagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inefficient-non-responsive genotypes (Fuat Bey and Ceyhan-99) had below average DM yield”
t0“Wheat Genotypes”
Claim · model-written summary
No genotypes fell in the inefficient responsive category.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- no genotypes were in the inefficient responsive categorye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no genotypes were in the inefficient responsive category”
t0“Wheat Genotypes”
Claim · model-written summary
The authors recommend phosphorus-efficient genotypes as a complement to chemical phosphorus fertilization depending on local conditions.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- P-efficient genotypes should be seen as complement to, rather than a substitute for, chemical P fertilizatione0
- Qualifier
- depending on local conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of P-efficient genotypes should be seen as complement to, rather than a substitute for, chemical P fertilization depending on local conditions.”
t0“Wheat Genotypes”
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See all 226 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.