S. Jelić Milković, R. Lončarić, K. Zmaić, D. Kranjac, Maurizio Canavari
Until now, no research has been carried out in Croatia into consumer preferences for a particular agricultural and food product by a choice experiment. Therefore, little data are available about Croatian consumers' preferences for social concerns (sustainability, biodiversity, rural development and animal welfare) with regard to the consumer choice and behavior favoring local pig breeds, in this case the Black Slavonian Pig breed. A survey was the method used to collect the data, and a survey questionnaire was used as an instrument. The survey was performed on a sample of n = 100 Croatian consumers surveyed online using a hypothetical choice experiment. The data were analyzed using the three logit models: a multinomial logit model (MNL), random parameter logit (RPL), and an error component random parameter logit model (RPL-EC) in order to examine the consumers’ heterogeneous preferences for fresh ham meat of the Black Slavonian Pig. The results suggest that the Croatian consumers appreciated a darker red fresh pork meat than the one obtained from the Black Slavonian Pig reared outdoors and semi-outdoor. They also prefer a fresh meat bearing a geographical information label, such as the continental Croatia and continental Croatia + PDO, to a fresh meat without a label.
{"title":"Choice Experiment Performed on the Fresh Black Slavonian Pig’s Meat: A Preliminary Study","authors":"S. Jelić Milković, R. Lončarić, K. Zmaić, D. Kranjac, Maurizio Canavari","doi":"10.18047/poljo.27.2.10","DOIUrl":"https://doi.org/10.18047/poljo.27.2.10","url":null,"abstract":"Until now, no research has been carried out in Croatia into consumer preferences for a particular agricultural and food product by a choice experiment. Therefore, little data are available about Croatian consumers' preferences for social concerns (sustainability, biodiversity, rural development and animal welfare) with regard to the consumer choice and behavior favoring local pig breeds, in this case the Black Slavonian Pig breed. A survey was the method used to collect the data, and a survey questionnaire was used as an instrument. The survey was performed on a sample of n = 100 Croatian consumers surveyed online using a hypothetical choice experiment. The data were analyzed using the three logit models: a multinomial logit model (MNL), random parameter logit (RPL), and an error component random parameter logit model (RPL-EC) in order to examine the consumers’ heterogeneous preferences for fresh ham meat of the Black Slavonian Pig. The results suggest that the Croatian consumers appreciated a darker red fresh pork meat than the one obtained from the Black Slavonian Pig reared outdoors and semi-outdoor. They also prefer a fresh meat bearing a geographical information label, such as the continental Croatia and continental Croatia + PDO, to a fresh meat without a label.","PeriodicalId":44286,"journal":{"name":"Poljoprivreda","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41446801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Josipa Puškarić, J. Jović, V. Ivezić, B. Popović, Iva Paponja, M. Brmež
An above‐ground plant diversity affects a below-ground biodiversity. A soil fauna diversity is important for the ecosystems’ sustainability. It reflects both the abiotic conditions and the soil’s biotic activity. This study’s objective was to assess the effect of an agroforestry system on the nematode abundance and trophic group distribution and on the bacterial and fungal abundance in the soil, as well as to analyze the links between a nematode abundance, trophic group patterns, soil’s microbiological status and the organic matter. A field experiment was conducted during two years in three treatments and three sampling periods. The treatments were as follows: an agricultural crop (C), a permanent walnut plantation (W), and a permanent walnut plantation with an agricultural crop (C + W). The nematodes were extracted, counted, processed and mounted on slides and ultimately determined and assigned to the trophic groups. The bacteria and fungi were extracted from the soil, grown on the plates, and counted. Our findings suggest that the studied agroforestry system (C+W) has exerted a positive effect on the soil nematodes, bacteria, and fungi, manifested as the statistically highest abundance of bacteria and fungi, but also as the highest abundance of nematodes and of a diversity of the nematode genera. The highest content of the organic matter was detected in the treatment C + W in the first sampling and in the treatments C + W and W in the second sampling. We have concluded that the combination of an agricultural crop and a permanent plantation has a great potential for better ecosystem stability and sustainability regardless of some deviations in our results. We believe that further research is necessary because the different agroforestry ecosystems may have different impacts on the soil fauna.
{"title":"The Communities of the Nematodes, Bacteria, and Fungi and the Soil’s Organic Matter in an Agroforestry Ecosystem in Croatia","authors":"Josipa Puškarić, J. Jović, V. Ivezić, B. Popović, Iva Paponja, M. Brmež","doi":"10.18047/POLJO.27.1.9","DOIUrl":"https://doi.org/10.18047/POLJO.27.1.9","url":null,"abstract":"An above‐ground plant diversity affects a below-ground biodiversity. A soil fauna diversity is important for the ecosystems’ sustainability. It reflects both the abiotic conditions and the soil’s biotic activity. This study’s objective was to assess the effect of an agroforestry system on the nematode abundance and trophic group distribution and on the bacterial and fungal abundance in the soil, as well as to analyze the links between a nematode abundance, trophic group patterns, soil’s microbiological status and the organic matter. A field experiment was conducted during two years in three treatments and three sampling periods. The treatments were as follows: an agricultural crop (C), a permanent walnut plantation (W), and a permanent walnut plantation with an agricultural crop (C + W). The nematodes were extracted, counted, processed and mounted on slides and ultimately determined and assigned to the trophic groups. The bacteria and fungi were extracted from the soil, grown on the plates, and counted. Our findings suggest that the studied agroforestry system (C+W) has exerted a positive effect on the soil nematodes, bacteria, and fungi, manifested as the statistically highest abundance of bacteria and fungi, but also as the highest abundance of nematodes and of a diversity of the nematode genera. The highest content of the organic matter was detected in the treatment C + W in the first sampling and in the treatments C + W and W in the second sampling. We have concluded that the combination of an agricultural crop and a permanent plantation has a great potential for better ecosystem stability and sustainability regardless of some deviations in our results. We believe that further research is necessary because the different agroforestry ecosystems may have different impacts on the soil fauna.","PeriodicalId":44286,"journal":{"name":"Poljoprivreda","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45365556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Duvnjak, A. Sudarić, K. Vrandečić, Anto Mijić, T. Čupić, I. Liović, Maja Matoša Kočar
This study’s objective was to determine if there was a difference in aggressiveness between the Diaporthe longicolla and the Diaporthe pseudolongicolla isolates infecting the soybean seeds. An artificial inoculation was performed under laboratory conditions and in a greenhouse on a soybean cultivar (Tisa) created in the breeding program of the Agricultural Institute Osijek and represented in a large-scale production in the Republic of Croatia. An attempt was made to discover whether the isolates of the recently described D. pseudolongicolla were more aggressive to the soybean seeds than the D. longicolla isolates, which have manifested a high aggressiveness to the soybean seeds throughout a series of earlier experiments. The D. pseudolongicolla isolates used in the experiment were isolated from the infected seeds pertaining to a wide production in the vicinity of Osijek. The experiments have demonstrated that there were statistically significant differences (P<0.05) in the aggressiveness between the isolates tested, with the D. longicolla isolate manifesting the highest aggressiveness in both trials.
{"title":"The Aggressivness of Diaporthe longicolla and Diaporthe pseudolongicolla Isolates Tested by the Soybean Seed’s Artificial Inoculation","authors":"T. Duvnjak, A. Sudarić, K. Vrandečić, Anto Mijić, T. Čupić, I. Liović, Maja Matoša Kočar","doi":"10.18047/POLJO.27.1.8","DOIUrl":"https://doi.org/10.18047/POLJO.27.1.8","url":null,"abstract":"This study’s objective was to determine if there was a difference in aggressiveness between the Diaporthe longicolla and the Diaporthe pseudolongicolla isolates infecting the soybean seeds. An artificial inoculation was performed under laboratory conditions and in a greenhouse on a soybean cultivar (Tisa) created in the breeding program of the Agricultural Institute Osijek and represented in a large-scale production in the Republic of Croatia. An attempt was made to discover whether the isolates of the recently described D. pseudolongicolla were more aggressive to the soybean seeds than the D. longicolla isolates, which have manifested a high aggressiveness to the soybean seeds throughout a series of earlier experiments. The D. pseudolongicolla isolates used in the experiment were isolated from the infected seeds pertaining to a wide production in the vicinity of Osijek. The experiments have demonstrated that there were statistically significant differences (P<0.05) in the aggressiveness between the isolates tested, with the D. longicolla isolate manifesting the highest aggressiveness in both trials.","PeriodicalId":44286,"journal":{"name":"Poljoprivreda","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47020790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of this study was to determine the effect of fertilization with organic fertilizers Fertil Supernova and Ilsamin N90 on the yield and yield components of three spelt varieties. The study was conducted on an anthropogenized eutric cambisol at the experimental site of the Faculty of Agriculture in Zagreb during 2015/16, 2016/17, and 2017/18, respectively. The study included three varieties of spelt, Nirvana, Ostro, and Bc Vigor, as well as a topdressing with organic fertilizers and a control (without topdressing). The first topdressing at the beginning of spring vegetation consisted of the application of organic fertilizer Fertil Supernova in the amount of 300 kg ha-1, while the second topdressing at the end of tillering consisted of a foliar application of Ilsamin N90 in the amount of 3 l ha-1. The spelt yield and its yield components were significantly influenced by weather conditions, primarily by the amount and distribution of precipitation. The studied spelt varieties did not significantly differ in the grain yield. In all three research years, the variety Nirvana has achieved the significantly largest number of ears per m2. Topdressing with organic fertilizers had a positive impact on the yield of the hulled spelt grain only in the dry year of 2016/17. Topdressing with organic fertilizers did not have a significant impact on the yield components.
研究了肥超新星和伊尔samin N90有机肥对3个斯佩尔特小麦品种产量及产量组成的影响。该研究分别于2015/16、2016/17和2017/18年在萨格勒布农业学院的实验地点对一种人为的营养盐进行了研究。该研究包括斯佩尔特、涅槃、奥斯特罗和Bc Vigor三个品种，以及施用有机肥的追肥和对照(不施用追肥)。春季植被初进行第一次追肥，施用300 kg ha-1的肥力超新星有机肥，分蘖末进行第二次追肥，叶面施用3 l ha-1的伊尔沙明N90。小麦产量及其组成部分受气候条件影响显著，主要受降水量和分布的影响。所研究的斯佩尔特品种在籽粒产量上没有显著差异。在所有的三个研究年中，涅槃品种每平方米的穗数明显最多。仅在2016/17干旱年份，有机肥追肥对去皮斯佩尔德籽粒产量有正向影响。有机肥追肥对产量构成无显著影响。
{"title":"The Effect of Organic Fertilizers on the Spelt Yield and the Yield of its Components","authors":"A. Pospišil, M. Pospišil","doi":"10.18047/POLJO.27.1.5","DOIUrl":"https://doi.org/10.18047/POLJO.27.1.5","url":null,"abstract":"The aim of this study was to determine the effect of fertilization with organic fertilizers Fertil Supernova and Ilsamin N90 on the yield and yield components of three spelt varieties. The study was conducted on an anthropogenized eutric cambisol at the experimental site of the Faculty of Agriculture in Zagreb during 2015/16, 2016/17, and 2017/18, respectively. The study included three varieties of spelt, Nirvana, Ostro, and Bc Vigor, as well as a topdressing with organic fertilizers and a control (without topdressing). The first topdressing at the beginning of spring vegetation consisted of the application of organic fertilizer Fertil Supernova in the amount of 300 kg ha-1, while the second topdressing at the end of tillering consisted of a foliar application of Ilsamin N90 in the amount of 3 l ha-1. The spelt yield and its yield components were significantly influenced by weather conditions, primarily by the amount and distribution of precipitation. The studied spelt varieties did not significantly differ in the grain yield. In all three research years, the variety Nirvana has achieved the significantly largest number of ears per m2. Topdressing with organic fertilizers had a positive impact on the yield of the hulled spelt grain only in the dry year of 2016/17. Topdressing with organic fertilizers did not have a significant impact on the yield components.","PeriodicalId":44286,"journal":{"name":"Poljoprivreda","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41389974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Štefanić, V. Kovačević, L. Jakovljević, Urška Kosić, D. Zima, A. Turalija
On the experimental plots of the Institute of Agriculture and Tourism in Poreč, weed communities were analyzed in a conventionally‐grown olive orchard and in consociation with pyrethrum. Phytocenological surveys were conducted in March, June, and September using the Braun-Blanquet Cover Abundance Scale. Altogether, 54 species of vascular plants were recognized in both orchards. However, in a conventionally‐grown olive orchard, 27 were identified, whereas 42 weed species were identified in consociation with pyrethrum. Only 15 weeds were common to both orchards. Between both olive orchards, significant differences existed regarding the floristic and community diversity metrics. In consociation with pyrethrum as a cover crop, olive orchard had a more stable weed community during the season, while two weed species, Mercurialis annuua L. and Medicago arabica (L.) Huds., dominated in a conventionally‐grown orchard in the fall. The weed communities in both orchards significantly differ considering the appearance season (spring, summer, and fall). An autumnal weed community in a conventionally‐grown olive orchard was more diverse, more abundant, and with a more distinct floristic composition than a weed community in the spring and summer periods. However, an olive‐orchard weed community in consociation with pyrethrum also differed regarding the season, but a Canonical Correspondence Analysis (CCA) demonstrated a clear separation of a more diverse estival weed community than the one observed in the spring and summer.
{"title":"Weed Community in a Conventionally-Grown Olive Orchard Vs. Weed Community in Consociation with Pyrethrum (Tanacetum cinerariifolium (Trevir.) Sch. Bip.)","authors":"E. Štefanić, V. Kovačević, L. Jakovljević, Urška Kosić, D. Zima, A. Turalija","doi":"10.18047/POLJO.27.1.4","DOIUrl":"https://doi.org/10.18047/POLJO.27.1.4","url":null,"abstract":"On the experimental plots of the Institute of Agriculture and Tourism in Poreč, weed communities were analyzed in a conventionally‐grown olive orchard and in consociation with pyrethrum. Phytocenological surveys were conducted in March, June, and September using the Braun-Blanquet Cover Abundance Scale. Altogether, 54 species of vascular plants were recognized in both orchards. However, in a conventionally‐grown olive orchard, 27 were identified, whereas 42 weed species were identified in consociation with pyrethrum. Only 15 weeds were common to both orchards. Between both olive orchards, significant differences existed regarding the floristic and community diversity metrics. In consociation with pyrethrum as a cover crop, olive orchard had a more stable weed community during the season, while two weed species, Mercurialis annuua L. and Medicago arabica (L.) Huds., dominated in a conventionally‐grown orchard in the fall. The weed communities in both orchards significantly differ considering the appearance season (spring, summer, and fall). An autumnal weed community in a conventionally‐grown olive orchard was more diverse, more abundant, and with a more distinct floristic composition than a weed community in the spring and summer periods. However, an olive‐orchard weed community in consociation with pyrethrum also differed regarding the season, but a Canonical Correspondence Analysis (CCA) demonstrated a clear separation of a more diverse estival weed community than the one observed in the spring and summer.","PeriodicalId":44286,"journal":{"name":"Poljoprivreda","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45729131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Horvat, M. Tucak, M. Vuletić, T. Čupić, G. Krizmanić, Marija Babić
The leaf samples of two varieties, twenty breeding populations, and seven local populations of the Croatian red clover were collected in the full flowering stage, with an aim to evaluate their phenolic content and antioxidant activity by using the spectrophotometric methods. A significant variation among the varieties/populations in the content of total phenolics and flavonoids was determined. The results demonstrated that the red clover is a rich source of phenolics and flavonoids, ranging from 38.67 to 59.96 mg GAE/g of DM and 21.19 to 51.48 mg CE/g of DM, respectively. The high levels in both phenolics and flavonoids were found in breeding populations/variety CD-8, Rc-11/7, Rc-11/8, Rc-11/15 and OS Osiris. The leaf extracts manifested a strong antioxidant activity towards diphenyl-1-picrylhydrazyl (DPPH), with a variation from 31.50 to 63.14%. A significant correlation was found between the antioxidant activity of the extracts and their total phenolic and flavonoid content (r = 0.737 and 0.839, respectively). Considering the obtained results, the crude extracts of red clover manifested a significant antioxidant potential and can be used as a natural source of biologically active components in the human and animal nutrition.
{"title":"PHENOLIC CONTENT AND ANTIOXIDANT ACTIVITY OF THE CROATIAN RED CLOVER GERMPLASM COLLECTION","authors":"D. Horvat, M. Tucak, M. Vuletić, T. Čupić, G. Krizmanić, Marija Babić","doi":"10.18047/poljo.26.2.1","DOIUrl":"https://doi.org/10.18047/poljo.26.2.1","url":null,"abstract":"The leaf samples of two varieties, twenty breeding populations, and seven local populations of the Croatian red clover were collected in the full flowering stage, with an aim to evaluate their phenolic content and antioxidant activity by using the spectrophotometric methods. A significant variation among the varieties/populations in the content of total phenolics and flavonoids was determined. The results demonstrated that the red clover is a rich source of phenolics and flavonoids, ranging from 38.67 to 59.96 mg GAE/g of DM and 21.19 to 51.48 mg CE/g of DM, respectively. The high levels in both phenolics and flavonoids were found in breeding populations/variety CD-8, Rc-11/7, Rc-11/8, Rc-11/15 and OS Osiris. The leaf extracts manifested a strong antioxidant activity towards diphenyl-1-picrylhydrazyl (DPPH), with a variation from 31.50 to 63.14%. A significant correlation was found between the antioxidant activity of the extracts and their total phenolic and flavonoid content (r = 0.737 and 0.839, respectively). Considering the obtained results, the crude extracts of red clover manifested a significant antioxidant potential and can be used as a natural source of biologically active components in the human and animal nutrition.","PeriodicalId":44286,"journal":{"name":"Poljoprivreda","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.18047/poljo.26.2.1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47159739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Jelenić, J. Ilic, J. Ćosić, K. Vrandečić, Mirna Velki
The aim of this research was to determine the effect of nine essential oils from the Croatian native flora (Mentha x piperita, Salvia officinalis, Rosmarinus officinalis, Lavandula hybrida, Origanum compactum, Thymus vulgaris, Hiperici oleum, Achillea millefolium and Helichrysum italicum) on the Botrytis cinerea mycelial growth suppression. The research results demonstrated that the oils of Thymus vulgaris and Mentha x pipereta in both investigated methods (the volatile and the macrodillution one) have exerted a positive influence on the suppression of mycelial growth. Also, the aforementioned oils had a fungistatic effect in all investigated concentrations long after 96 hours. The essential oils of Achillea millefolium and Hiperici oleum in the volatile method have not manifested a suppression effect, while the effect of suppression of a mycelial growth was recorded in the macrodillution method. The essential oil of Helichrysum italicum stimulated the growth of B. cinerea mycelium in both investigated methods. Considering a reduction of the mycelium growth, the essential oils, as a biocontrol agent, could be a positive substitution for the traditional pesticides in grapevine gray mold control. Additional investigation with regard to the essential oils in the Botrytis control are needed both the in vitro and the in vivo conditions.
{"title":"ANTIFUNGAL EFFECT OF ESSENTIAL OILS FROM THE NATIVE CROATIAN FLORA ON THE SUPPRESSION OF THE Botrytis cinerea FUNGUS IN GRAPEVINES","authors":"J. Jelenić, J. Ilic, J. Ćosić, K. Vrandečić, Mirna Velki","doi":"10.18047/poljo.26.2.7","DOIUrl":"https://doi.org/10.18047/poljo.26.2.7","url":null,"abstract":"The aim of this research was to determine the effect of nine essential oils from the Croatian native flora (Mentha x piperita, Salvia officinalis, Rosmarinus officinalis, Lavandula hybrida, Origanum compactum, Thymus vulgaris, Hiperici oleum, Achillea millefolium and Helichrysum italicum) on the Botrytis cinerea mycelial growth suppression. The research results demonstrated that the oils of Thymus vulgaris and Mentha x pipereta in both investigated methods (the volatile and the macrodillution one) have exerted a positive influence on the suppression of mycelial growth. Also, the aforementioned oils had a fungistatic effect in all investigated concentrations long after 96 hours. The essential oils of Achillea millefolium and Hiperici oleum in the volatile method have not manifested a suppression effect, while the effect of suppression of a mycelial growth was recorded in the macrodillution method. The essential oil of Helichrysum italicum stimulated the growth of B. cinerea mycelium in both investigated methods. Considering a reduction of the mycelium growth, the essential oils, as a biocontrol agent, could be a positive substitution for the traditional pesticides in grapevine gray mold control. Additional investigation with regard to the essential oils in the Botrytis control are needed both the in vitro and the in vivo conditions.","PeriodicalId":44286,"journal":{"name":"Poljoprivreda","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42248470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maja Matoša Kočar, Sonja Vila, S. Petrović, Andrijana Rebekić, A. Sudarić, T. Duvnjak, Antonela Markulj Kunudžić
The purpose of this study (2010‒12) was to investigate the fatty acid profiles (palmitic – PA, stearic – SA, oleic – OA, linoleic – LA, linolenic – LNA, saturated fatty acids – SFA, monounsaturated fatty acids – MUFA, polyunsaturated fatty acids – PUFA), oxidative stability (MUFA/PUFA, OA/LA), and nutritive quality (LA/LNA) of oil produced by 13 early soybean genotypes created at the Agricultural Institute Osijek, Croatia. The analysis of variance determined significant effect of genotype (G), year (Y), and GxY interaction on all examined traits. The correlation analysis indicated the most important positive correlation existed between the SA and OA, SA and LNA, and LA and LNA, and the most important negative relationship between OA and LA, and OA and LNA. The principal component analysis yielded four significant principal components (PCs) with the eigenvalues > 1, which together accounted for 57.84% of the total variability in the data set. The Eigen analysis of the correlation matrix loadings indicated MUFA/PUFA, MUFA, OA/LA, and OA mostly contribute to the PC1 axis and are in a positive correlation with it, while PUFA, LA, and LNA mostly contribute to a negative direction. These results will facilitate the planning of future breeding programs, aimed at adjusting the fatty acid profiles according to the needs of the processing industry and end consumers.
{"title":"VARIABILITY OF FATTY ACID PROFILES, OXIDATIVE STABILITY AND NUTRITIVE QUALITY OF OIL IN SELECTED SOYBEAN GENOTYPES","authors":"Maja Matoša Kočar, Sonja Vila, S. Petrović, Andrijana Rebekić, A. Sudarić, T. Duvnjak, Antonela Markulj Kunudžić","doi":"10.18047/poljo.26.2.2","DOIUrl":"https://doi.org/10.18047/poljo.26.2.2","url":null,"abstract":"The purpose of this study (2010‒12) was to investigate the fatty acid profiles (palmitic – PA, stearic – SA, oleic – OA, linoleic – LA, linolenic – LNA, saturated fatty acids – SFA, monounsaturated fatty acids – MUFA, polyunsaturated fatty acids – PUFA), oxidative stability (MUFA/PUFA, OA/LA), and nutritive quality (LA/LNA) of oil produced by 13 early soybean genotypes created at the Agricultural Institute Osijek, Croatia. The analysis of variance determined significant effect of genotype (G), year (Y), and GxY interaction on all examined traits. The correlation analysis indicated the most important positive correlation existed between the SA and OA, SA and LNA, and LA and LNA, and the most important negative relationship between OA and LA, and OA and LNA. The principal component analysis yielded four significant principal components (PCs) with the eigenvalues > 1, which together accounted for 57.84% of the total variability in the data set. The Eigen analysis of the correlation matrix loadings indicated MUFA/PUFA, MUFA, OA/LA, and OA mostly contribute to the PC1 axis and are in a positive correlation with it, while PUFA, LA, and LNA mostly contribute to a negative direction. These results will facilitate the planning of future breeding programs, aimed at adjusting the fatty acid profiles according to the needs of the processing industry and end consumers.","PeriodicalId":44286,"journal":{"name":"Poljoprivreda","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49183849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ante Šiljeg, Mladen Jurišić, Dorijan Radočaj, Matej Videković
Važnost primjene višekriterijske analize primjenom Geografskoga informacijskog sustava (GIS-a) u planiranju poljoprivredne proizvodnje u porastu je zbog sve veće potrebe za boljim i održivim iskorištavanjem zemljišnih resursa. U ovome je istraživanju izrađen model izračuna pogodnosti poljoprivrednoga zemljišta Osječko-baranjske županije za uzgoj ječma primjenom višekriterijske GIS analize. Postupak istraživanja proveden je u skladu s temeljnim koracima višekriterijske GIS analize: postavljanjem cilja analize, određivanjem kriterija, standardizacijom vrijednosti, određivanjem težina kriterija, objedinjavanjem standardiziranih vrijednosti i težina kriterija te validacijom rezultata. Pri izračunu pogodnosti korišteno je pet skupina kriterija: geomorfometrijski, klimatski, pedološki, hidrološki i ograničavajući kriteriji. Težinski koeficijenti kriterija određeni su metodom analitičkoga hijerarhijskog procesa (AHP). Vrijednosti pogodnosti reklasificirane su prema standardu pogodnosti poljoprivrednoga zemljišta Organizacije za prehranu i poljoprivredu (FAO) u pet klasa. Rezultati istraživanja pokazali su da je prostor Osječko-baranjske županije dominantno umjereno pogodan (S2) za uzgoj ječma s 53,00% poljoprivrednoga zemljišta. Najviša točnost izračunane površine u odnosu na površine testnih ARKOD čestica postignuta je za vrlo pogodnu (S1) kategoriju pogodnosti u iznosu 99,82%. Izrađeni model predstavlja temelj za izračun pogodnosti ostalih kultura na području Osječko-baranjske županije, na mezo- i mikrorazini istraživanja.
{"title":"Modeliranje pogodnosti poljoprivrednog zemljišta za uzgoj ječma uporabom višekriterijske GIS analize","authors":"Ante Šiljeg, Mladen Jurišić, Dorijan Radočaj, Matej Videković","doi":"10.18047/POLJO.26.1.6","DOIUrl":"https://doi.org/10.18047/POLJO.26.1.6","url":null,"abstract":"Važnost primjene višekriterijske analize primjenom Geografskoga informacijskog sustava (GIS-a) u planiranju poljoprivredne proizvodnje u porastu je zbog sve veće potrebe za boljim i održivim iskorištavanjem zemljišnih resursa. U ovome je istraživanju izrađen model izračuna pogodnosti poljoprivrednoga zemljišta Osječko-baranjske županije za uzgoj ječma primjenom višekriterijske GIS analize. Postupak istraživanja proveden je u skladu s temeljnim koracima višekriterijske GIS analize: postavljanjem cilja analize, određivanjem kriterija, standardizacijom vrijednosti, određivanjem težina kriterija, objedinjavanjem standardiziranih vrijednosti i težina kriterija te validacijom rezultata. Pri izračunu pogodnosti korišteno je pet skupina kriterija: geomorfometrijski, klimatski, pedološki, hidrološki i ograničavajući kriteriji. Težinski koeficijenti kriterija određeni su metodom analitičkoga hijerarhijskog procesa (AHP). Vrijednosti pogodnosti reklasificirane su prema standardu pogodnosti poljoprivrednoga zemljišta Organizacije za prehranu i poljoprivredu (FAO) u pet klasa. Rezultati istraživanja pokazali su da je prostor Osječko-baranjske županije dominantno umjereno pogodan (S2) za uzgoj ječma s 53,00% poljoprivrednoga zemljišta. Najviša točnost izračunane površine u odnosu na površine testnih ARKOD čestica postignuta je za vrlo pogodnu (S1) kategoriju pogodnosti u iznosu 99,82%. Izrađeni model predstavlja temelj za izračun pogodnosti ostalih kultura na području Osječko-baranjske županije, na mezo- i mikrorazini istraživanja.","PeriodicalId":44286,"journal":{"name":"Poljoprivreda","volume":"163 9","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.18047/POLJO.26.1.6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41303533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Genomic prediction accuracy (r_MP) is affected by many factors, such as the trait heritability, training population size and structure, and the number of markers. This study’s objective was to investigate the factors associated with r_MP for the ear height and the plant height in two planting densities in testcrosses of maize (Zea mays L.) IBM population. Genetic correlations between the training and validation populations were calculated. The high heritability estimates and correlations between the traits were observed. The non-zero estimates of r_MP for all trait-density combinations implied an efficiency of genomic selection. The lower than expected values of genetic correlations were observed between the training and validation populations. However, a strong correlation was observed between a genetic correlation of training and the validation population and r_MP in all three sizes of training populations assessed (20-40%, 40-60%, and 60-80%), suggesting that the size of the training population can be kept low by an appropriate selection while maintaining a high r_MP. Further studies of relationships between the training and validation populations with larger effective population sizes are suggested, as reducing the size of training population while maintaining a high r_MP can facilitate a more effective allocation of resources in a maize breeding program.
{"title":"Faktori koji utječu na efikasnost genomskih predviđanja u testrižancima biparentalne populacije","authors":"Vlatko Galić, M. Mazur, Domagoj Šimić, Zvonimir Zdunić, Antun Jambrović, Mirna Volenik, Andrija Brkić","doi":"10.18047/poljo.26.1.2","DOIUrl":"https://doi.org/10.18047/poljo.26.1.2","url":null,"abstract":"Genomic prediction accuracy (r_MP) is affected by many factors, such as the trait heritability, training population size and structure, and the number of markers. This study’s objective was to investigate the factors associated with r_MP for the ear height and the plant height in two planting densities in testcrosses of maize (Zea mays L.) IBM population. Genetic correlations between the training and validation populations were calculated. The high heritability estimates and correlations between the traits were observed. The non-zero estimates of r_MP for all trait-density combinations implied an efficiency of genomic selection. The lower than expected values of genetic correlations were observed between the training and validation populations. However, a strong correlation was observed between a genetic correlation of training and the validation population and r_MP in all three sizes of training populations assessed (20-40%, 40-60%, and 60-80%), suggesting that the size of the training population can be kept low by an appropriate selection while maintaining a high r_MP. Further studies of relationships between the training and validation populations with larger effective population sizes are suggested, as reducing the size of training population while maintaining a high r_MP can facilitate a more effective allocation of resources in a maize breeding program.","PeriodicalId":44286,"journal":{"name":"Poljoprivreda","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.18047/poljo.26.1.2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49304670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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