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001-es BibID:	BIBFORM089869
Első szerző:	Jóvér János (környezetgazdálkodási agrármérnök)
Cím:	Evaluation of sweet sorghum (Sorghum bicolor) hybrids as bioenergy feedstocks in relation to climatic aspects / Jóvér János, Kovács Györgyi, Blaskó Lajos, Juhász Csaba, Kovács Elza
Dátum:	2020
ISSN:	2066-6276 2601-5676
Megjegyzések:	In this study, biomass yield and sugar content, and bioethanol potential of six sweet sorghum hybrids were considered to assess the potential role of the genotype in the performance of sorghum. Yield and sugar content values were investigated in relation to the climatic aspects according to the Ellenberg and the Pálfai drought indices, and the effect of drought on biomass yield and sugar content was evaluated to reveal the dominant factor determining the bioethanol yield. Results proved that sweet sorghum holds a significant potential in the semi-arid regions to enhance the amount of the produced bioethanol e.g. in the EU, even though, considering the climatic characteristics of each year, sometimes extreme differences have been found that had a significant impact on its production. However, considering the performance of the hybrids, significant differences were found for both the green yield (5.5 t ha-1) and the sugar content (0.79 Brix %) under similar weather conditions, but sugar content for any of the selected hybrids had no relationship with the drought indices, though, seasonal impact was proved. In contrary, biomass yield showed significant relationship with the Pálfai drought index, suggesting that annual water shortage results in lower sorghum yield in the investigated semi-arid region as the determinative factor. Hybrids of the sweet sorghum showed high but different biofuel potential under the same, extreme climatic conditions via their biomass production variation, thus their field specific experimental testing is advisable to find the best performing ones in this context.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk sweet sorghum hybrids bioethanol climatic conditions drought indices
Megjelenés:	Natural Resources and Sustainable Development. - 10 : 2 (2020), p. 164-174. -
További szerzők:	Kovács Györgyi (1980-) (környezetgazdálkodási agrármérnök) Blaskó Lajos (1947-) (agrármérnök) Juhász Csaba (1962-) (környezetgazdálkodási agrármérnök) Kovács Elza (1976-) (okleveles vegyész, angol-magyar szakfordító, anyagmérnök MSc)
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001-es BibID:	BIBFORM079169
Első szerző:	Jóvér János (környezetgazdálkodási agrármérnök)
Cím:	The influence of base temperature on sweet sorghum production in Hungary / Jóvér János, Blaskó Lajos, Kovács Györgyi, Tamás János
Dátum:	2019
ISSN:	2066-6276 2601-5676
Megjegyzések:	In order to reach the goal determined by the 2009/28/EU directive sorghum production for energy purposes can be an adequate method. Efficient sorghum production is based on the consideration of the climatic aspects. An advantage of sorghum is appearing in the field of drought tolerance. The foundation of sorghum's great drought tolerance is the high heat demand which must be fulfilled. The heat demand varies from 8 ?C to 15 ?C, so that based on the meteorological data recorded in the period of 1997-2016 the Effective Heat Unit varied between 627 ?C and 2097 ?C. Base temperature has a remarkable impact on the length of the vegetation period as well. Depending on this value the potential length of the vegetation period can vary from 123 days to 153 days. The sugar accumulation curve of a sorghum hybrid is also an important aspect of efficient bioethanol production where length of the vegetation period is an essential factor.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban base temperature heat unit sweet sorghum sugar accumulation bioethanol
Megjelenés:	Natural Resources and Sustainable Development. - 9 : 1 (2019), p. 41-49. -
További szerzők:	Blaskó Lajos (1947-) (agrármérnök) Kovács Györgyi (1980-) (környezetgazdálkodási agrármérnök) Tamás János (1959-) (környezetgazdálkodási agrármérnök)
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