http://www.cnr.it/ontology/cnr/individuo/prodotto/ID299927

Agronomic traits and vegetation indices of two onion hybrids (Articolo in rivista)

Type

Label

Agronomic traits and vegetation indices of two onion hybrids (Articolo in rivista) (literal)

Anno

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

Alternative label

Marino S.; Basso B.; Leone A.P.; Alvino A. (2013)
Agronomic traits and vegetation indices of two onion hybrids
in Scientia horticulturae
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Pagina inizio

Pagina fine

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://www.scopus.com/inward/record.url?eid=2-s2.0-84878934790&partnerID=q2rCbXpz (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Department of Agricultural, Environmental and Food Sciences (DAEFS), University of Molise, Via De Sanctis, I-86100, Campobasso, Italy; Department of Geological Science, W.K. Kellogg Biological Station, Michigan State University, 307 Natural Science Building, East Lansing, MI 48824-1115, United States; CNR-ISAFoM, Via Patacca 85, Ercolano, 80056, Italy (literal)

Titolo

Abstract

Environmental, genotypic and agronomic factors have an effect on the yield value of an onion crop, which is determined primarily by number, weight and size of bulbs. Spatial variability of soil properties affects crop yield. Remote sensed hyperspectral vegetation indices (VIs), calculated using crop reflectance at field scale can be used either as an index of the plant biophysical status, or as a tool to estimate crop variability. The aim of the study was to evaluate the relationships among traditional agronomic measurements of two irrigated onion hybrids (Cometa and Red Mech) with spectroradiometric measurements taken at field scale. The two hybrids differed significantly either for agronomic response (yield, yield components and distribution of yield classes) or for their spectral properties. Cometa showed significant higher yield and biomass than Red Mech, as well as significant higher VI values, although no correlations were found among agronomic parameters and spectroradiometric indices. On the contrary, Red Mech showed significant correlation among biomass, yield and bulb weight with VIs. Differences between the two onion hybrids in the spectroradiometric readings and agronomic traits underlined the importance of ground truth data verification when air-born images or satellite data are taken over onion crop field. © 2013 Elsevier B.V. (literal)

Prodotto di