TY - JOUR
T1 - Zinc enrichment in two contrasting genotypes of triticum aestivum l. Grains
T2 - Interactions between edaphic conditions and foliar fertilizers
AU - Luís, Inês Carmo
AU - Lidon, Fernando C.
AU - Pessoa, Cláudia Campos
AU - Marques, Ana Coelho
AU - Coelho, Ana Rita F.
AU - Simões, Manuela
AU - Patanita, Manuel
AU - Dôres, José
AU - Ramalho, José C.
AU - Silva, Maria Manuela
AU - Almeida, Ana Sofia
AU - Pais, Isabel P.
AU - Pessoa, Maria Fernanda
AU - Reboredo, Fernando Henrique
AU - Legoinha, Paulo
AU - Guerra, Mauro
AU - Leitão, Roberta G.
AU - Campos, Paula Scotti
N1 - grant number 101-030835
UID/FIS/04559/2020
PY - 2021/1/21
Y1 - 2021/1/21
N2 - This study aimed to assess the implications of Zn enrichment in wheat grains as a function of contrasting genotypes, edaphic conditions and foliar fertilizers. Triticum aestivum L. varieties Roxo and Paiva were grown in four production fields, and sprayed with ZnSO4 (0, 16.20 and 36.40 kg/ha) Zn-EDTA (0, 6.30 and 12.60 kg/ha) and Tecnifol Zinc (0, 3.90 and 7.80 kg/ha). The heterogeneous edaphic conditions of the wheat fields were chemically characterized, it being found that soil properties determine different Zn accumulation in the grains of both genotypes. Foliar spraying enhanced to different extents Zn content in the grains of both genotypes, but the average of enrichment indexes varied among the wheat fields. Zinc mostly accumulated in the embryo and vascular bundle and to a lesser extent in the endosperm. Grain yield and test weight sprayed by ZnSO4 gave the highest values in both genotypes, but the opposite was found for Zn-EDTA. Considering the color parameters, lightness and red–green transitions were found to be a conjunction of genotype characteristics, fertilization types and edaphic conditions prevailing in each field. It is concluded that the index of Zn enrichment in wheat grains is a docket of edaphic conditions, genotype and type of fertilization.
AB - This study aimed to assess the implications of Zn enrichment in wheat grains as a function of contrasting genotypes, edaphic conditions and foliar fertilizers. Triticum aestivum L. varieties Roxo and Paiva were grown in four production fields, and sprayed with ZnSO4 (0, 16.20 and 36.40 kg/ha) Zn-EDTA (0, 6.30 and 12.60 kg/ha) and Tecnifol Zinc (0, 3.90 and 7.80 kg/ha). The heterogeneous edaphic conditions of the wheat fields were chemically characterized, it being found that soil properties determine different Zn accumulation in the grains of both genotypes. Foliar spraying enhanced to different extents Zn content in the grains of both genotypes, but the average of enrichment indexes varied among the wheat fields. Zinc mostly accumulated in the embryo and vascular bundle and to a lesser extent in the endosperm. Grain yield and test weight sprayed by ZnSO4 gave the highest values in both genotypes, but the opposite was found for Zn-EDTA. Considering the color parameters, lightness and red–green transitions were found to be a conjunction of genotype characteristics, fertilization types and edaphic conditions prevailing in each field. It is concluded that the index of Zn enrichment in wheat grains is a docket of edaphic conditions, genotype and type of fertilization.
KW - Agronomic biofortification
KW - Bread wheat
KW - Grain yield
KW - Zinc foliar application
KW - Zinc grain content
UR - http://www.scopus.com/inward/record.url?scp=85099565751&partnerID=8YFLogxK
U2 - 10.3390/plants10020204
DO - 10.3390/plants10020204
M3 - Article
C2 - 33494526
AN - SCOPUS:85099565751
SN - 2223-7747
VL - 10
SP - 1
EP - 25
JO - Plants
JF - Plants
IS - 2
M1 - 204
ER -
