Catalogo Articoli (Spogli Riviste)


Yield response of winter wheat varieties to low inputs
Petr, J; Skerik, J;
Czech Univ Agr, Prague 16521 6, Suchdol, Czech Republic Czech Univ Agr Prague Suchdol Czech Republic 16521 6 hdol, Czech Republic
Titolo Testata:
fascicolo: 12, volume: 45, anno: 1999,
pagine: 525 - 532
wheat; varieties; low inputs; ecological agriculture; yields;
Tipo documento:
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Indirizzi per estratti:
Indirizzo: Petr, J Czech Univ Agr, Prague 16521 6, Suchdol, Czech Republic Czech UnivAgr Prague Suchdol Czech Republic 16521 6 ech Republic
J. Petr e J. Skerik, "Yield response of winter wheat varieties to low inputs", ROSTLIN VYR, 45(12), 1999, pp. 525-532


In five-year varietal trial the set of varieties was studied in conditionsof ecological cultivation according to IFOAM (International Federation of Organic Agriculture Movements) principles and Methodological Instruction for Ecological Agriculture of Ministry of Agriculture of CR. Trials were a part of national investigation of varieties for the List of Recommended Varieties preparing by the Central Institute for Supervising and Testing in Agriculture, Brno. The trials with wheat varieties are conducted on many Czech places at various cultivation intensity, fertilization and application of pesticides and growth regulators. Our trial was conducted without using of fertilizers, herbicides, fungicides, insecticides and growth regulators. Experimental station of the Czech University of Agriculture is in Praha-Uhrineves in fertile beet-growing region (production capacity of soil 84 points) with a good reserve of nutrients. Average annual air temperature is 8.3 degrees C and annual sum of precipitation is 575 mm. Weather pattern in different years is presented in Tab. I. Different weather pattern in different years participated significantly in obtained yields. In 1994 average yield ofall varieties amounted to 7.92 t.ha(-1), in 1995 7.51 t.ha(-1) what were markedly higher yields than in the other years. Significantly lowest yield in 1996 was 4.58 t.ha(-1) likewise in 1998. Average yields of tested varieties in different years are given in Tabs. II to VI. Sets of identical varieties tested for three, four, five years were compiled for statistical evaluation. The varieties Bruta, Samanta and Siria seemed to be the most yieldingin these sets. Regarding the good yield, the varieties Astella, Estica andAthlet of new varieties included in the last years in this system of cultivation were well manifested. It was proved that for cultivation procedures with low inputs or directly for ecological cultivation it is not necessary to select older varieties or originall regional as it was recommended earlier. On the contrary, these are mostly very good yielding modern varieties forming the yield rather by productivity of spike than the number of spikes and high weight of caryopses. They should be also the so-called plastic, i.e. suitable into less favourable conditions, with very good health condition.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 10:03:17