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001-es BibID:	BIBFORM064153
Első szerző:	Novák Adrienn (agrármérnök)
Cím:	Effect of ecological and agrotechnical factors on the phytopathological properties of sunflower (Helianthus annuus L.) / Novák Adrienn, Pepó Péter
Dátum:	2015
ISSN:	1224-6255 2065-3484
Megjegyzések:	The research work has been carried out at the Látókép Research Site of the University of Debrecen, Centre for Agricultural Sciences, Farm and Regional Research Institute on calcareous chernozem soil in. We examined the effects of sowing times and the fungicide treatments on the phytopathogenic characteristics phytopathological properties of sunflower hybrids. In order to characterize the phytopathological properties of sunflower hybrids in a complex way infection index (Ii) has been elaborated. The infection of sunflower populations by fungal phytopathogenes was mainly determined by the weather conditions of the crop year. The development of infection indexes depended mainly on the sowing time in the studied crop years (r=-0.806, r=-0.755). Fungicide application had significant contribution to the moderation of the unfavourable effect of sowing time in both years and thus it decreased the infection index of sunflower populations (r=-0.464, r=-0.578). Plant phytopathogenes resulted in significant yield loss in sunflower populations only in the crop year of 2012 that was characterized by heavy infection.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban infection ungicide treatment phytopathogenics sowing time sunflower
Megjelenés:	Analele Universitatii din Oradea. Fascicula Protectia Mediului. - 25 : 20 (2015), p. 55-60. -
További szerzők:	Pepó Péter (1955-) (agrármérnök)
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM057696
Első szerző:	Novák Adrienn (agrármérnök)
Cím:	Investigation of sowing technology in sunflower (Helianthus annuus L.) / Novák Adrienn
Dátum:	2014
ISSN:	2065-3484
Megjegyzések:	The yield and maximal leaf area index of three sunflower hybrids (P64LC09, Paraiso 1000, ES Tektonic) were studied in two crop protection models with different input levels (extensive=without fungicide treatments, mid-tech= two fungicide treatments) on chernozem soil in two different years (2012 and 2013). A field experiment was set up at the experimental farm of the University of Debrecen, at Látókép on calcareous chernozem soil. The highest LAI values were measured in the beginning of July for all the three hybrids in the case of both cropyears. During our investigation, the yield results of the cropyear 2012 (1828-3602 kg ha-1) were significantly below those of the cropyear of 2013 (4292-5902 kg ha-1). With respect to the yield amount, the higher plant density (55000 plant ha-1) were optimal.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban fungicide treatment leaf area index plant density Sunflower Yield
Megjelenés:	Analele Universităţii din Oradea, Fascicula Protecţia Mediului. - 22 : 19 (2014), p. 27-32. -
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM056664
Első szerző:	Novák Adrienn (agrármérnök)
Cím:	Effect of planting time on sunflower hybrid growth / Novák Adrienn
Dátum:	2013
ISSN:	1224-6255
Megjegyzések:	Our experiment, set up at the Látókép AGTC MÉK research area of the University of Debrecen, focused on studying the effects of planting time on the growth of sunflower hybrids of two different genotypes (NK Neoma, SY Revelio) under different fungicide treatments in 2012. During our research, early sown plants produced the largest leaf area in the case of both treatments and hybrids (control: NK Neoma: 4.7 m2/m2, SY Revelio: 5.3 m2/m2; double-treated: NK Neoma: 4.9 m2/m2, SY Revelio: 5.3 m2/m2). For both treatments, maximum leaf coverage was measured on 2 July, 2013 in the case of early sown hybrids and on 23 July, 2013 in the case of late sown ones. As for hybrids sown in average planting times, maximum leaf coverage was measured on 2 July, 2013 in the case of the control parcels and on 23 July, 2013 in the case of the double-treated ones. Two-time fungicide treatments lead to the conservation of the green leaf area in the case of hybrid SY Revelio. By postponing the planting time in the control parcels, maximum plant height fell in the case of both hybrids. On the other hand, in the case of double-treated hybrids, the largest plant height (182 cm) was measured at late planting for NK Neoma and at average planting time for SY Revelio (197 cm).
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban sunflower planting time plant heigth fungicid protection
Megjelenés:	Analele Universitatii din Oradea. Fascicula Protectia Mediului. - 21 : 18 (2013), p. 150-155. -
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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