Abstract
There is an urgent need among plant breeders for a deeper understanding of the links between wheat genotypes and their ability to utilize light for biomass production and their efficiency at converting the biomass into grain yield. This field trail was conducted to investigate the variations in radiation use efficiency (RUE) and harvest index (HI) of four spring wheat cultivars grown on two soil types with two nitrogen (N) fertilization levels. Grain yield (GY) was significantly higher with 200 kg N ha−1 than 100 kg N ha−1 and on clay soil than on sandy soil, and a similar trend was observed for shoot dry matter (DM) at maturity. RUE and HI was neither affected by cultivar nor N-fertilization, but was affected by soil type, with a significantly higher RUE and HI on clay than on sandy soil. The differences of water holding capacity between the two soil types was suggested to be a major factor influencing RUE and HI as exemplified by the principal component analysis. Thus, to achieve a high RUE and/or HI, sustaining a good soil water status during the critical growth stages of wheat crops is essential, especially on sandy soils with a low water holding capacity.
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Claims 9
Claim · model-written summary
Grain yield was significantly higher with 200 kg N ha−1 than with 100 kg N ha−1.
- Taxon
- spring wheat
Triticum aestivumt0 - Treatment
- 200 kg N ha−1e1
- Outcome
- Grain yielde1
- Direction
- highere1
- Comparator
- 100 kg N ha−1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Spring Wheat”
e1“Grain yield (GY) was significantly higher with 200 kg N ha−1 than 100 kg N ha−1”
Claim · model-written summary
Grain yield was significantly higher on clay soil than on sandy soil.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- clay soile2
- Outcome
- Grain yielde1
- Direction
- highere1
- Comparator
- sandy soile2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Spring Wheat”
e1“Grain yield (GY) was significantly higher with 200 kg N ha−1 than 100 kg N ha−1”
e2“and on clay soil than on sandy soil”
Claim · model-written summary
Cultivar did not affect radiation use efficiency or harvest index.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- cultivare3
- Outcome
- RUE and HIe3
- Direction
- neither affectede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Spring Wheat”
e3“RUE and HI was neither affected by cultivar nor N-fertilization”
Claim · model-written summary
Nitrogen fertilization did not affect radiation use efficiency or harvest index.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- N-fertilizatione3
- Outcome
- RUE and HIe3
- Direction
- neither affectede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Spring Wheat”
e3“RUE and HI was neither affected by cultivar nor N-fertilization”
Claim · model-written summary
Radiation use efficiency and harvest index were significantly higher on clay than on sandy soil.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- soil typee4
- Outcome
- RUE and HIe4
- Direction
- highere4
- Comparator
- sandy soile4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Spring Wheat”
e4“but was affected by soil type, with a significantly higher RUE and HI on clay than on sandy soil”
Claim · model-written summary
Differences in water holding capacity between the two soil types were suggested to be a major factor influencing radiation use efficiency and harvest index.
- Taxon
- spring wheatTriticum aestivumt0
- Outcome
- RUE and HIe5
- Qualifier
- differences of water holding capacity between the two soil typese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Spring Wheat”
e5“The differences of water holding capacity between the two soil types was suggested to be a major factor influencing RUE and HI”
Claim · model-written summary
Sustaining a good soil water status during critical growth stages is essential for high RUE and/or HI, especially on sandy soils with low water holding capacity.
- Taxon
- wheat cropsTriticum aestivume6
- Outcome
- sustaining a good soil water statuse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“sustaining a good soil water status during the critical growth stages of wheat crops is essential, especially on sandy soils with a low water holding capacity”
Claim · model-written summary
Shoot dry matter at maturity showed a similar trend, higher with 200 kg N ha−1 than with 100 kg N ha−1.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- 200 kg N ha−1e1
- Outcome
- shoot dry matter (DM) at maturitye7
- Direction
- higherinferrede7
- Comparator
- 100 kg N ha−1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Spring Wheat”
e1“Grain yield (GY) was significantly higher with 200 kg N ha−1 than 100 kg N ha−1”
e7“a similar trend was observed for shoot dry matter (DM) at maturity”
Claim · model-written summary
Shoot dry matter at maturity showed a similar trend, higher on clay soil than on sandy soil.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- clay soile2
- Outcome
- shoot dry matter (DM) at maturitye7
- Direction
- higherinferrede7
- Comparator
- sandy soile2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Spring Wheat”
e2“and on clay soil than on sandy soil”
e7“a similar trend was observed for shoot dry matter (DM) at maturity”
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