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001-es BibID:	BIBFORM092899
Első szerző:	Tóth Brigitta (környezetgazdálkodási agrármérnök)
Cím:	Low nitrogen and phosphorus effects on wheat Fe, Zn, phytic acid and phenotypic traits / Brigitta Tóth, Moloi Makoena J., Lóránt Szöke, Labuschagne Maryke
Dátum:	2021
ISSN:	0038-2353 1996-7489
Megjegyzések:	In sub-Saharan Africa, crops are often grown under low nitrogen (N) and low phosphorus (P) conditions, which may impact on the nutritional components of the grains. The aim of this study was to investigate the effect of low N and low P and a combination of the two on iron (Fe), zinc (Zn) and phytic acid content in two commercial South African spring wheat cultivars (PAN3497 and SST806). Phenotypic traits were also investigated. Although cultivar effects were not significant, treatment effects were highly significant for the phenotypic and nutritional traits. Low P stress increased Fe and Zn levels, whereas low N stress had the opposite effect. In addition, low P stress inhibited phytic acid accumulation the most, suggesting that under this treatment, Fe and Zn were more available because of less interaction with phytic acid. Compared to the low N treatment, the low P treatment led to lower reductions in the number of tillers, plant height, stem thickness, number of seeds, weight of seeds and dry weight for both cultivars. While low P had positive effects on the nutritional value of wheat, the combination of low N and P treatment had a negative impact on most of the measured characteristics. Low N conditions had more negative effects on all measured characteristics than low P conditions and was very detrimental to wheat nutritional value and yield.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	South African Journal of Science. - 117 : 3-4 (2021), p. 1-7. -
További szerzők:	Moloi, Makoena Joyce (1983-) (növényélettanász) Szőke Lóránt (1993-) (okleveles növényorvos, mezőgazdasági mérnök) Labuschagne, Maryke
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