Találati lista | Tudóstér

001-es BibID:	BIBFORM037451
Első szerző:	Széles Adrienn (okleveles agrármérnök)
Cím:	Effect of nutrition and water supply on the yield and grain protein content of maize hybrids / Ványiné Széles Adrienn, Nagy János
Dátum:	2012
Megjegyzések:	The aim of this study was to examine the problems caused by unfavourable weather (dry and wet) at the R1 growth stage of maize (Zea mays L.), the treatment of these problems and the prevention of yield decrease, as well as the opportunities to increase quality using agrotechnical factors (fertilisation, irrigation). There was a further objective to determine whether Chl content of maize leaves at the R1 growth stage provided a reliable forecast on yield per hectare and grain protein content. This study was carried out in a moderately warm and dry production area on calcareous chernozem soil in Eastern Hungary (47o33' N, 21o26' E, altitude 111 m) in 2007 and 2008. Six different N fertilisers (0,30,60,90,120,150 kg ha-1) were applied in the field experiment, in irrigated and non-irrigated treatments, respectively. The obtained results show that there is a strong and significant positive correlation between Chl content and yield both in the non-irrigated treatment (P<0.001; R=0.777) and the irrigated treatment (P<0.001; R=0.801). A weak stochastic correlation (R2=26.2%) was found between the protein content and the Chl content in the irrigated treatment. A regression analysis showed a weak negative correlation (P<0.001; R=0.345) between yield and protein content in the non-irrigated treatment. In the irrigated treatment, a medium positive correlation was observed (P<0.001; R=0.685). The results of the yearly performed correlation analyses showed that while weather factors greatly affected the strength of correlations, they are still positive in all cases.The Chl content of maize leaves at the R1 growth stage provided a reliable forecast on yield per hectare and grain protein content at maturity. The observed correlation is always closer in the irrigated treatment than in the non-irrigated treatment.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban leaf chlorophyll content (Chl) nitrogen irrigation genotype quality
Megjelenés:	Australian Journal Crop Science. - 6 : 3 (2012), p. 381-390. -
További szerzők:	Nagy János (1951-) (agrármérnök, mérnök-tanár)
Pályázati támogatás:	TÁMOP-4.2.2/B-10/1-2010-0024 TÁMOP
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: