The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring Wheat
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The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring Wheat. / Wang, Xizi; Christensen, Svend; Svensgaard, Jesper; Jensen, Signe M.; Liu, Fulai.
In: Agronomy, Vol. 10, No. 9, 1391, 2020.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring Wheat
AU - Wang, Xizi
AU - Christensen, Svend
AU - Svensgaard, Jesper
AU - Jensen, Signe M.
AU - Liu, Fulai
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
KW - harvest index
KW - nitrogen
KW - radiation use efficiency
KW - water availability
KW - wheat
KW - LIGHT USE EFFICIENCY
KW - WINTER-WHEAT
KW - GRAIN-YIELD
KW - PHYSIOLOGICAL-BASIS
KW - SANDY SOIL
KW - LEAF-AREA
KW - WATER-USE
KW - INTERCEPTION
KW - IRRIGATION
KW - CANOPY
U2 - 10.3390/agronomy10091391
DO - 10.3390/agronomy10091391
M3 - Journal article
VL - 10
JO - Agronomy
JF - Agronomy
SN - 2073-4395
IS - 9
M1 - 1391
ER -
ID: 250917174