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Titolo:
SOIL TYPE INFLUENCES RELATIVE YIELD OF BARLEY AND WHEAT IN A MEDITERRANEAN-TYPE ENVIRONMENT
Autore:
SIMPSON PG; SIDDIQUE KHM;
Indirizzi:
LA TROBE UNIV,SCH AGR BUNDOORA VIC 3083 AUSTRALIA W AUSTRALIAN DEPT AGR,DIV PLANT IND S PERTH WA 6151 AUSTRALIA
Titolo Testata:
Journal of agronomy and crop science
fascicolo: 3, volume: 172, anno: 1994,
pagine: 147 - 160
SICI:
0931-2250(1994)172:3<147:STIRYO>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
WATER-USE EFFICIENCY; NORTHERN SYRIA; GROWTH; ROOT; OLD; FERTILIZER; VARIETIES; CULTIVARS; NITROGEN; CEREALS;
Keywords:
MEDITERRANEAN-TYPE ENVIRONMENT; BARLEY; WHEAT; SOIL TYPES; PLANT DEVELOPMENT; GREEN AREA INDEX; DRY MATTER; GRAIN YIELD; HARVEST INDEX; WATER EXTRACTION; WATER USE EFFICIENCY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
39
Recensione:
Indirizzi per estratti:
Citazione:
P.G. Simpson e K.H.M. Siddique, "SOIL TYPE INFLUENCES RELATIVE YIELD OF BARLEY AND WHEAT IN A MEDITERRANEAN-TYPE ENVIRONMENT", Journal of agronomy and crop science, 172(3), 1994, pp. 147-160

Abstract

In the eastern wheatbelt of Western Australia the yield of barley relative to wheat is influenced by soil type. Field trials studied detailed aspects of growth, development, yield and water use of a range of barley and wheat cultivars on 2 soil types at 2 locations to identify those factors that lead to the differential relative yields. Barley hadgreater grain yields than wheat on both fine and coarse textured soils. On both soil types barley had a greater number of mainstem leaves which appeared faster than those of wheat and this was associated with greater tillering (6.5 v. 3.5 shoots/plant), higher GAI and greater dry matter production (845 v. 804 g/m2). The difference in yield betweenthe two species was greater on the fine textured soil (15 v. 7 %). Barley also had greater harvest index than wheat (6-15 %), and this combined with greater dry matter production on the fine textured soil led to a larger yield advantage over wheat than occurred on the coarse textured soil. Water use efficiency was greater for barley than for wheaton both soils. The greater yield advantage of barley over wheat on the fine textured soil was the result of greater biomass production by barley and greater harvest index. Differences in pattern of water use, and water use efficiency of grain production were associated with greater barley yields but are not themselves considered to be the cause ofrelative yield differences across soil types. The possible implications of factors such as intrinsic nutrient supply on the 2 soil types inrelation to observed yield differences are discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 07:09:12