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Titolo:
Growth analysis of five spring and five winter triticale genotypes
Autore:
Royo, C; Blanco, R;
Indirizzi:
Univ Lleida, Ctr UdLIRTA, Area Conreus Extensius, Lleida 25198, Spain UnivLleida Lleida Spain 25198 ea Conreus Extensius, Lleida 25198, Spain Univ Lleida, Dept Produccio Vegetal & Ciencia Forestal, Lleida 25198, Spain Univ Lleida Lleida Spain 25198 l & Ciencia Forestal, Lleida 25198, Spain
Titolo Testata:
AGRONOMY JOURNAL
fascicolo: 2, volume: 91, anno: 1999,
pagine: 305 - 311
SICI:
0002-1962(199903/04)91:2<305:GAOFSA>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
MEDITERRANEAN-TYPE ENVIRONMENT; FORAGE PLUS GRAIN; STATISTICAL-ANALYSIS; YIELD COMPONENTS; BARLEY; WHEAT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Royo, C Univ Lleida, Ctr UdLIRTA, Area Conreus Extensius, Rovira Roure 177, Lleida25198, Spain Univ Lleida Rovira Roure 177 Lleida Spain 25198 leida25198, Spain
Citazione:
C. Royo e R. Blanco, "Growth analysis of five spring and five winter triticale genotypes", AGRON J, 91(2), 1999, pp. 305-311

Abstract

Little is known about the pattern of growth and biomass partitioning of spring and winter triticale (XTrificosecale Wittmack), although such information can aid in interpreting the results of field experiments and is an essential step in the development of crop simulation models. This study was conducted to analyze and compare the growth of five winter and five spring triticale genotypes over two years in northeast Spain. Plants were sampled at the main stages of the Zadoks scale, and biomass, LAI and their components,and stem elongation were determined. The relationships between an the growth traits studied and accumulated growing degree-days from sowing (GDD) were described by the same asymmetric logistic peak curve. Genotypic variability could be mainly associated with plant phenology. On average, winter tritic ale types needed 165 more GDD than spring types to reach maximum LAI. Also, winter triticale genotypes needed 190 more GDD to complete their main stem elongation, and 109 more GDD to reach their maximum rate of dry weight accumulation in the stems than spring genotypes did. The length of the first tiller was closer to the length of the main stem in winter types than in spring types. Both types of triticale had similar patterns of biomass accumulation. The asymmetric logistic peak curve used in this work fitted asymptotic and peak-type relationships, and can be a useful tool for growth studies.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 22:18:26