{"title":"Preučevanje nihanja napada agrumovega ščitkarja (Dialeurodes citri [Ashmead, 1885]) in njegovih plenilcev v ekološki pridelavi pri različnih podnebnih razmerah: vzorčna raziskava iz severozahodne Alžirije","authors":"Abdelhaq Mahmoudi, Leila ALLAL BENFEKIH, Matheus Goosen","doi":"10.14720/aas.2024.120.1.18050","DOIUrl":"https://doi.org/10.14720/aas.2024.120.1.18050","url":null,"abstract":"<jats:p />","PeriodicalId":6884,"journal":{"name":"Acta agriculturae Slovenica","volume":"57 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140368066","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}
Pub Date : 2024-03-29DOI: 10.14720/aas.2024.120.1.16702
Nejc Valcl, Andrej Lavrenčič
Gas production from thirty samples of feedstuffs (10 samples of corn silage, grass silage, and grass hay, respectively) was assessed in vitro using two methods: the Hohenheim gas test (HGT) and the ANKOM RF Gas Production System (ANKOM). Samples were incubated in buffered rumen fluid. Gas kinetic parameters were calculated using the Gompertz model. Results revealed significantly lower gas production with the ANKOM compared to the HGT. Significant differences were observed between the HGT and ANKOM in the specific gas production rate (parameter C), maximum fermentation rate (MFR) and gas produced after 24 h of incubation (Gas24) for each feed group. High coefficients of determination (R2) were calculated between the methods for the gas kinetic parameters MFR, Gas24, total potential gas production (parameter B), decrease in the specific gas production rate (parameter A), moderate R2 for C, and low R2 for time of maximum fermentation rate (TMFR). Despite the lower quantities of gas generated with the ANKOM, there are strong correlations in the parameters of gas kinetics that promise the possibility of developing correction models. Future development of such models could position the ANKOM as a viable alternative to HGT, particularly for calculating metabolizable energy and net energy for lactation in feedstuffs.
{"title":"Kinetika plinov v vampu: primerjalna analiza dveh in vitro metod za ocenjevanje krme","authors":"Nejc Valcl, Andrej Lavrenčič","doi":"10.14720/aas.2024.120.1.16702","DOIUrl":"https://doi.org/10.14720/aas.2024.120.1.16702","url":null,"abstract":"Gas production from thirty samples of feedstuffs (10 samples of corn silage, grass silage, and grass hay, respectively) was assessed in vitro using two methods: the Hohenheim gas test (HGT) and the ANKOM RF Gas Production System (ANKOM). Samples were incubated in buffered rumen fluid. Gas kinetic parameters were calculated using the Gompertz model. Results revealed significantly lower gas production with the ANKOM compared to the HGT. Significant differences were observed between the HGT and ANKOM in the specific gas production rate (parameter C), maximum fermentation rate (MFR) and gas produced after 24 h of incubation (Gas24) for each feed group. High coefficients of determination (R2) were calculated between the methods for the gas kinetic parameters MFR, Gas24, total potential gas production (parameter B), decrease in the specific gas production rate (parameter A), moderate R2 for C, and low R2 for time of maximum fermentation rate (TMFR). Despite the lower quantities of gas generated with the ANKOM, there are strong correlations in the parameters of gas kinetics that promise the possibility of developing correction models. Future development of such models could position the ANKOM as a viable alternative to HGT, particularly for calculating metabolizable energy and net energy for lactation in feedstuffs.","PeriodicalId":6884,"journal":{"name":"Acta agriculturae Slovenica","volume":"55 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366573","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}
Pub Date : 2024-03-29DOI: 10.14720/aas.2024.120.1.17198
Saim Maqsood, A. Buhroo, Asma Sherwani, M. Mukhtar
The flea beetles, Phyllotreta striolata (Fabricius, 1803) and Altica himensis (Shukla, 1960) (Coleoptera: Chrysomelidae: Alticinae) are one of the most serious pests of Brassica oleracea L. in Kashmir. In order to find eco-friendly control against these pests, bio-efficacy, persistence and residual toxicity of some newer insecticides viz., Emamectin benzoate 5SG @ 0.002 and 0.004 per cent, Spinosad 45SC @ 0.0035 and 0.007 per cent was evaluated against P. striolata and A. himensis infesting cabbage crop. Mortality caused by these insecticides was recorded in all the treatments. The result revealed that spinosad 45SC @ 0.007 per cent exhibited significantly lowest pest population and the highest efficacy against cabbage flea beetles. The persistence and residual toxicity of these insecticides was worked and it was found that spinosad 45SC @ at 0.007 per cent revealed the highest PT value of (346.11 & 321.43) for P. striolata and (299.57 & 322.38) for A. himensis compared to other insecticides. LT50 values of (4.13 & 3.38) for P. striolata and (3.08 & 3.84) for A. himensis were the highest for Spinosad 45SC @ 0.007 per cent. It was concluded that spinosad 45SC @ 0.007 per cent offers a feasible choice for the management of P. striolata and A. himensis.
{"title":"Bio-efficacy, persistence and residual toxicity of greener insecticides against predominant flea beetles on cabbage crop in Kashmir","authors":"Saim Maqsood, A. Buhroo, Asma Sherwani, M. Mukhtar","doi":"10.14720/aas.2024.120.1.17198","DOIUrl":"https://doi.org/10.14720/aas.2024.120.1.17198","url":null,"abstract":"The flea beetles, Phyllotreta striolata (Fabricius, 1803) and Altica himensis (Shukla, 1960) (Coleoptera: Chrysomelidae: Alticinae) are one of the most serious pests of Brassica oleracea L. in Kashmir. In order to find eco-friendly control against these pests, bio-efficacy, persistence and residual toxicity of some newer insecticides viz., Emamectin benzoate 5SG @ 0.002 and 0.004 per cent, Spinosad 45SC @ 0.0035 and 0.007 per cent was evaluated against P. striolata and A. himensis infesting cabbage crop. Mortality caused by these insecticides was recorded in all the treatments. The result revealed that spinosad 45SC @ 0.007 per cent exhibited significantly lowest pest population and the highest efficacy against cabbage flea beetles. The persistence and residual toxicity of these insecticides was worked and it was found that spinosad 45SC @ at 0.007 per cent revealed the highest PT value of (346.11 & 321.43) for P. striolata and (299.57 & 322.38) for A. himensis compared to other insecticides. LT50 values of (4.13 & 3.38) for P. striolata and (3.08 & 3.84) for A. himensis were the highest for Spinosad 45SC @ 0.007 per cent. It was concluded that spinosad 45SC @ 0.007 per cent offers a feasible choice for the management of P. striolata and A. himensis.\u0000 ","PeriodicalId":6884,"journal":{"name":"Acta agriculturae Slovenica","volume":"5 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366150","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}
Ziel dieser Studie ist es, die verschiedenen Blattlausarten und ihre assoziierten Aphidiphagen in Zitrusplantagen in der Region Chlef (Algerien) zu erfassen und zu identifizieren, um die Interaktionen zwischen Prädation und Parasitismus im Hinblick auf die biologische Bekämpfung dieser furchterregenden Schädlinge zu verbessern. Für die Probenahme wurden gelbe Klebefallen, gelbe Becken und visuelle Bestimmung verwendet. Mit dieser Studie konnten wir sieben Blattlausarten und 34 Blattlausarten identifizieren. Die häufigsten Blattläuse waren A. spiraecola und A. gossypii, während die häufigsten Aphidiphagen Episyrphus balteatus, Chrysoperla carnea, Coccinella septempunctata, Aphidoletes aphidimyza und Lysiphlebus fabarum waren. In Bezug auf die Häufigkeit werden Aphidiphagen von Marienkäfern dominiert, gefolgt von Florfliegen, Schwebfliegen, Wanzen und Mücken an letzter Stelle. Die Vielfalt der aphidiphagen Fauna ist nicht sehr hoch, aber die höchsten Werte werden gegen Ende April festgestellt. Die Prädationsaktivität im Untersuchungsgebiet erstreckt sich von Ende März bis November. Aphidiphagen zeigen Präferenzen für bestimmte Beutetiere und nicht für andere, im Falle der Blattlausdiversität, sowohl nach intrinsischen als auch nach extrinsischen Faktoren. Schlüsselwörter: Blattläuse, Aphidiphagen, Zitrusfrüchte, natürliche Feinde, chlef.
{"title":"und, in, die Interaktionen zwischen Blattläusen und Blattläusen in Zitrusplantagen in der Region Chlef (Nordwesten Algeriens)","authors":"Dalila Amokrane, Ahmed Mohammedi, Abdelhaq Mahmoudi, Adda Ababou","doi":"10.14720/aas.2024.120.1.17047","DOIUrl":"https://doi.org/10.14720/aas.2024.120.1.17047","url":null,"abstract":"Ziel dieser Studie ist es, die verschiedenen Blattlausarten und ihre assoziierten Aphidiphagen in Zitrusplantagen in der Region Chlef (Algerien) zu erfassen und zu identifizieren, um die Interaktionen zwischen Prädation und Parasitismus im Hinblick auf die biologische Bekämpfung dieser furchterregenden Schädlinge zu verbessern. Für die Probenahme wurden gelbe Klebefallen, gelbe Becken und visuelle Bestimmung verwendet. Mit dieser Studie konnten wir sieben Blattlausarten und 34 Blattlausarten identifizieren. Die häufigsten Blattläuse waren A. spiraecola und A. gossypii, während die häufigsten Aphidiphagen Episyrphus balteatus, Chrysoperla carnea, Coccinella septempunctata, Aphidoletes aphidimyza und Lysiphlebus fabarum waren. In Bezug auf die Häufigkeit werden Aphidiphagen von Marienkäfern dominiert, gefolgt von Florfliegen, Schwebfliegen, Wanzen und Mücken an letzter Stelle. Die Vielfalt der aphidiphagen Fauna ist nicht sehr hoch, aber die höchsten Werte werden gegen Ende April festgestellt. Die Prädationsaktivität im Untersuchungsgebiet erstreckt sich von Ende März bis November. Aphidiphagen zeigen Präferenzen für bestimmte Beutetiere und nicht für andere, im Falle der Blattlausdiversität, sowohl nach intrinsischen als auch nach extrinsischen Faktoren. \u0000Schlüsselwörter: Blattläuse, Aphidiphagen, Zitrusfrüchte, natürliche Feinde, chlef.","PeriodicalId":6884,"journal":{"name":"Acta agriculturae Slovenica","volume":"21 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140365342","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}
Zaradi težnje po prepovedi kirurške kastracije merjascev, se razmišlja o alternativah, ki vključujejo tudi pitanje merjascev za prirejo mesa. Problem pri porabi merjaščevega mesa predstavlja predvsem neprijeten vonj, za katerega je v veliki meri odgovoren skatol (3-metilindol). V raziskavi smo vpeljali spektrofotometrično metodo za določanje vsebnosti skatola v maščobnem tkivu. Zbrali smo vzorce petih genotipv merjascev iz petih različnih rej, starih med 101 in 310 dni. Ob vpeljavi metode smo analizirali prvo skupino, kasneje dobljene vzorce pa kot drugo skupino. Vpeljana metoda je ponovljiva (koeficient variabilnosti, KV = 13,6), obnovljiva (KV = 21,3) in ima dober izkoristek (96 %). Vsebnost skatola v hrbtnem maščobnem tkivu merjascev pri prvi skupini je bila mes 0,01 in 0,62 ppm, v povprečju 0,23 ppm. Druga skupina pa je v povprečju vsebovala 0,71 ppm skatola (med 0,07 in 1,26 ppm). Vpliva genotipa, rejca in starosti na vsebnost skatola nismo zaznali.
{"title":"Vsebnost skatola v maščobnem tkivu merjascev določena s spektrofotometrično metodo","authors":"M. Žemva, M. K. Rajšp, Milena Kovač, Š. Malovrh","doi":"10.14720/aas.2012.100.1.14432","DOIUrl":"https://doi.org/10.14720/aas.2012.100.1.14432","url":null,"abstract":"Zaradi težnje po prepovedi kirurške kastracije merjascev, se razmišlja o alternativah, ki vključujejo tudi pitanje merjascev za prirejo mesa. Problem pri porabi merjaščevega mesa predstavlja predvsem neprijeten vonj, za katerega je v veliki meri odgovoren skatol (3-metilindol). V raziskavi smo vpeljali spektrofotometrično metodo za določanje vsebnosti skatola v maščobnem tkivu. Zbrali smo vzorce petih genotipv merjascev iz petih različnih rej, starih med 101 in 310 dni. Ob vpeljavi metode smo analizirali prvo skupino, kasneje dobljene vzorce pa kot drugo skupino. Vpeljana metoda je ponovljiva (koeficient variabilnosti, KV = 13,6), obnovljiva (KV = 21,3) in ima dober izkoristek (96 %). Vsebnost skatola v hrbtnem maščobnem tkivu merjascev pri prvi skupini je bila mes 0,01 in 0,62 ppm, v povprečju 0,23 ppm. Druga skupina pa je v povprečju vsebovala 0,71 ppm skatola (med 0,07 in 1,26 ppm). Vpliva genotipa, rejca in starosti na vsebnost skatola nismo zaznali.","PeriodicalId":6884,"journal":{"name":"Acta agriculturae Slovenica","volume":"33 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138971522","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}
In the period from 2005 to 2009 225 samples of apples, lettuce and potatoes from Slovene producers included in integrated pest management (IPM) were analysed for plant protection product (PPP) residues. The samples were analysed for the presence of more than 200 different active compounds using four analytical methods. In 38.7% of apple samples residues were not detected, 58.6% of apple samples contained residues lower than or equal to Maximum Residue Levels (MRLs) while 2.7% of apple samples exceeded MRLs. In 84.6% of lettuce samples residues were not detected, 12.3% of lettuce samples contained residues lower than or equal to MRLs while 3.1% of lettuce samples exceeded MRLs. In 98.0% of potato samples residues were not detected, 2.0% of potato samples contained residues lower than or equal to MRLs and no potato samples exceeded MRLs. Multiple residues were found only in apples and lettuce. The trend observed during the years was the decrease of sample portion of samples containing multiple residues in apples from 2005 to 2008. The most frequently found active substance in apples and lettuce was dithiocarbamates. In potato only phosalone was found.
{"title":"Pesticide residues in samples of apples, lettuce and potatoes from integrated pest management in Slovenia from 2005-2009","authors":"H. Česnik, Š. V. Bolta, A. Gregorčič","doi":"10.2478/V10014-012-0006-3","DOIUrl":"https://doi.org/10.2478/V10014-012-0006-3","url":null,"abstract":"In the period from 2005 to 2009 225 samples of apples, lettuce and potatoes from Slovene producers included in integrated pest management (IPM) were analysed for plant protection product (PPP) residues. The samples were analysed for the presence of more than 200 different active compounds using four analytical methods. In 38.7% of apple samples residues were not detected, 58.6% of apple samples contained residues lower than or equal to Maximum Residue Levels (MRLs) while 2.7% of apple samples exceeded MRLs. In 84.6% of lettuce samples residues were not detected, 12.3% of lettuce samples contained residues lower than or equal to MRLs while 3.1% of lettuce samples exceeded MRLs. In 98.0% of potato samples residues were not detected, 2.0% of potato samples contained residues lower than or equal to MRLs and no potato samples exceeded MRLs. Multiple residues were found only in apples and lettuce. The trend observed during the years was the decrease of sample portion of samples containing multiple residues in apples from 2005 to 2008. The most frequently found active substance in apples and lettuce was dithiocarbamates. In potato only phosalone was found.","PeriodicalId":6884,"journal":{"name":"Acta agriculturae Slovenica","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78185821","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}
Vdihavanje peloda vrst iz rodu Ambrosia lahko povzroči preobčutljivostne reakcije. Krma za prostoživeče ptice je eden od dejavnikov, ki pripomorejo k širjenju omenjenih rastlin. Leta 2010 so zato k Direktivi o nezaželenih snoveh v živalski krmi (2002/32/ES) dodali aneks, da lahko krma za živali, ki vsebuje nezmleta žita, vsebuje do 50 mg semen vrst iz rodu Ambrosia v kilogramu krme (UL L 290/54). Podatkov o vsebnosti semen te rastline v krmi je zelo malo, zato smo z mikroskopsko metodo preiskali 40 vzorcev krme za prostoživeče ptice. Semena ambrozije je vsebovalo 20 vzorcev oziroma 50 %. Ugotovljeno število semen v kilogramu posameznega vzorca je bilo od 2 do 146 (10 mg do 774 mg). V skladu s predpisi smo vsebnosti preračunali relativno na vzorec z 12 % vlage in ugotovili, da je dovoljeno mejo presegalo 5 vzorcev (12,5 %).
{"title":"Novejši podatki o vsebnosti semen vrst iz rodu Ambrosia v krmi za prostoživeče ptice v Sloveniji","authors":"Breda JAKOVAC STRAJN, Kristina Jelka Pozvek, Tanja Prosenik, Mario Lešnik, Igor UJČIČ VRHOVNIK","doi":"10.14720/aas.2013.101.2.14934","DOIUrl":"https://doi.org/10.14720/aas.2013.101.2.14934","url":null,"abstract":"Vdihavanje peloda vrst iz rodu Ambrosia lahko povzroči preobčutljivostne reakcije. Krma za prostoživeče ptice je eden od dejavnikov, ki pripomorejo k širjenju omenjenih rastlin. Leta 2010 so zato k Direktivi o nezaželenih snoveh v živalski krmi (2002/32/ES) dodali aneks, da lahko krma za živali, ki vsebuje nezmleta žita, vsebuje do 50 mg semen vrst iz rodu Ambrosia v kilogramu krme (UL L 290/54). Podatkov o vsebnosti semen te rastline v krmi je zelo malo, zato smo z mikroskopsko metodo preiskali 40 vzorcev krme za prostoživeče ptice. Semena ambrozije je vsebovalo 20 vzorcev oziroma 50 %. Ugotovljeno število semen v kilogramu posameznega vzorca je bilo od 2 do 146 (10 mg do 774 mg). V skladu s predpisi smo vsebnosti preračunali relativno na vzorec z 12 % vlage in ugotovili, da je dovoljeno mejo presegalo 5 vzorcev (12,5 %).","PeriodicalId":6884,"journal":{"name":"Acta agriculturae Slovenica","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138971446","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}
Začetki načrtnega zbiranja trav in metuljnic segajo v 50 leta prejšnjega stoletja, ko so iz zbranega materiala kasneje požlahtnili prve slovenske sorte trav in metuljnic. V prispevku je poleg zgodovine prikazano sedanje delo genske banke krmnih rastlin in nekateri rezultati vrednotenja genskih virov v zadnjem desetletju. Za najprimernejši način zbiranja genskih virov so se pokazale večdnevne odprave, katerih cilj so lahko travniki ali kmetije, ki še pridelujejo lokalne populacije oziroma stare sorte kmetijskih rastlin. Trenutno v genski banki hranimo 761 vzorcev krmnih rastlin, od tega je 281 metuljnic, 352 trav, 73 travniških zeli in 55 krmnih poljščin. Večina krmnih rastlin je tujeprašnih, kar otežuje množenje vzorcev zaradi potrebe po prostorski izolaciji. Obnova starih vzorcev je in bo v prihodnje velik izziv tudi naše genske banke. Pri ocenjevanjih travniškega mačjega repa (Phleum pratense), navadne pasje trave (Dactylis glomerata L.), plazeče detelje (Trifolium repens L.), navadne nokote (Lotus corniculatus L.) in navadne turške detelje (Onobrychis viciifolia Scop.) smo med posameznimi ekotipi ugotovili dokaj veliko morfološko raznolikost. Ekotipi se med seboj razlikujejo tudi po kemijski sestavi, krmni vrednosti in drugih agronomskih lastnostih.
{"title":"Genska banka krmnih rastlin na Kmetijskem inštitutu Slovenije","authors":"Janko Verbič, Vladimir Meglič","doi":"10.14720/aas.2012.99.3.14470","DOIUrl":"https://doi.org/10.14720/aas.2012.99.3.14470","url":null,"abstract":"Začetki načrtnega zbiranja trav in metuljnic segajo v 50 leta prejšnjega stoletja, ko so iz zbranega materiala kasneje požlahtnili prve slovenske sorte trav in metuljnic. V prispevku je poleg zgodovine prikazano sedanje delo genske banke krmnih rastlin in nekateri rezultati vrednotenja genskih virov v zadnjem desetletju. Za najprimernejši način zbiranja genskih virov so se pokazale večdnevne odprave, katerih cilj so lahko travniki ali kmetije, ki še pridelujejo lokalne populacije oziroma stare sorte kmetijskih rastlin. Trenutno v genski banki hranimo 761 vzorcev krmnih rastlin, od tega je 281 metuljnic, 352 trav, 73 travniških zeli in 55 krmnih poljščin. Večina krmnih rastlin je tujeprašnih, kar otežuje množenje vzorcev zaradi potrebe po prostorski izolaciji. Obnova starih vzorcev je in bo v prihodnje velik izziv tudi naše genske banke. Pri ocenjevanjih travniškega mačjega repa (Phleum pratense), navadne pasje trave (Dactylis glomerata L.), plazeče detelje (Trifolium repens L.), navadne nokote (Lotus corniculatus L.) in navadne turške detelje (Onobrychis viciifolia Scop.) smo med posameznimi ekotipi ugotovili dokaj veliko morfološko raznolikost. Ekotipi se med seboj razlikujejo tudi po kemijski sestavi, krmni vrednosti in drugih agronomskih lastnostih.","PeriodicalId":6884,"journal":{"name":"Acta agriculturae Slovenica","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138973232","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}
Mlada rdeča vina izpostavljena kisiku lahko pod določenimi pogoji pridobijo na kakovosti. Proces mikrooksidacije je osnovna metoda, s katero lahko vplivamo na fenolno strukturo vin, ki skuša prilagajati količino dodanega kisika vinu z namenom povečati stabilnost barve, zmehčanja trpkih taninov in zmanjšanja neprijetnih arom. Proučevali smo vpliv mikrooksidacije na spremembo barve in vsebnosti fenolnih spojin vina modri pinot. Analize so vključevale določanje skupnih fenolov, taninov, netaninov, flavonoidov in neflavonoidov, antocianov, intenzitete barve, tona barve, deleža rdeče barve pri posameznih valovnih dolžinah (420, 520 in 620 nm), oceno koncentracije pigmenta odpornega na SO2 ter primerjavo končnega in kontrolnega vzorca v kemijskih parametrih (pH, prosti in vezani SO2, alkohol, skupni suhi ekstrakt, skupne, titrabilne in hlapne kisline). Rezultati so pokazali, da je mikrooksidacija povzročila spremembo barvnega značaja, izboljšanje intenzitete barve procesiranega vzorca v primerjavi s kontrolnim, vzpodbudila tvorbo polimernih barvil in kopigmentiranih kompleksov, s tem pa mehčanje taninov (polimerizacija fenolnih spojin) in stabilizacijo barve, ki je odporna na vezavo z SO2.
{"title":"Mikrooksidacija vina modri pinot","authors":"M. Lesica, Tatjana Košmerl","doi":"10.14720/aas.2006.87.2.15126","DOIUrl":"https://doi.org/10.14720/aas.2006.87.2.15126","url":null,"abstract":"Mlada rdeča vina izpostavljena kisiku lahko pod določenimi pogoji pridobijo na kakovosti. Proces mikrooksidacije je osnovna metoda, s katero lahko vplivamo na fenolno strukturo vin, ki skuša prilagajati količino dodanega kisika vinu z namenom povečati stabilnost barve, zmehčanja trpkih taninov in zmanjšanja neprijetnih arom. Proučevali smo vpliv mikrooksidacije na spremembo barve in vsebnosti fenolnih spojin vina modri pinot. Analize so vključevale določanje skupnih fenolov, taninov, netaninov, flavonoidov in neflavonoidov, antocianov, intenzitete barve, tona barve, deleža rdeče barve pri posameznih valovnih dolžinah (420, 520 in 620 nm), oceno koncentracije pigmenta odpornega na SO2 ter primerjavo končnega in kontrolnega vzorca v kemijskih parametrih (pH, prosti in vezani SO2, alkohol, skupni suhi ekstrakt, skupne, titrabilne in hlapne kisline). Rezultati so pokazali, da je mikrooksidacija povzročila spremembo barvnega značaja, izboljšanje intenzitete barve procesiranega vzorca v primerjavi s kontrolnim, vzpodbudila tvorbo polimernih barvil in kopigmentiranih kompleksov, s tem pa mehčanje taninov (polimerizacija fenolnih spojin) in stabilizacijo barve, ki je odporna na vezavo z SO2.","PeriodicalId":6884,"journal":{"name":"Acta agriculturae Slovenica","volume":"60 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138974973","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}
A field experiment was carried out to study the effect of cobalt, Rhizobium and phosphobacterium inoculations on growth, yield and nutrient uptake of summer groundnut in an alluvial soil at three levels of cobalt viz., zero, 0.21 kg and 0.42 kg ha-1 with four levels of inoculations viz., uninoculation, inoculation with Rhizobium, inoculation with phosphobacterium and inoculation with both Rhizobium and phosphobacterium. Results indicated that combined application of Rhizobium and phosphobacterium inoculation promoted higher dry matter production, pod yield, oil content and nutrient uptake as compared to application of either of the inoculations. Cobalt @ 0.21 kg ha-1 proved to be better to other doses of cobalt. The percent increase in pod yield of different treatment combinations over untreated control varied from, 2.4% with no inoculation + cobalt @ 0.42 kg ha-1 to 35.6% with Rhizobium + phosphobacterium + cobalt @ 0.21 kg ha-1. The uptake of N, P and K by groundnut was significantly higher in the treatments receiving both inoculation and cobalt at 0.21 kg ha-1 than sole application of either inoculation or cobalt.
进行了一项田间试验，以研究钴、根瘤菌和磷细菌接种对冲积土壤中夏花生的生长、产量和养分吸收的影响，试验中使用了三种水平的钴，即零、0.21 千克和 0.42 千克/公顷-1，以及四种水平的接种，即未接种、接种根瘤菌、接种磷细菌以及同时接种根瘤菌和磷细菌。结果表明，联合接种根瘤菌和磷细菌能提高干物质产量、豆荚产量、含油量和养分吸收率。事实证明，0.21 kg ha-1 的钴比其他剂量的钴更好。与未处理的对照相比，不同处理组合的豆荚产量增加百分比从未接种 + 钴 @ 0.42 kg ha-1 的 2.4% 到根瘤菌 + 磷细菌 + 钴 @ 0.21 kg ha-1 的 35.6%不等。花生对氮、磷和钾的吸收率在同时接种和施钴 0.21 kg ha-1 的处理中明显高于只接种或施钴的处理。
{"title":"Influence of microbial culture in combination with micronutrient in improving the groundnut productivity under alluvial soil of India","authors":"M. Basu, P. Bhadoria, S. C. Mahapatra","doi":"10.14720/aas.2006.87.2.15123","DOIUrl":"https://doi.org/10.14720/aas.2006.87.2.15123","url":null,"abstract":"A field experiment was carried out to study the effect of cobalt, Rhizobium and phosphobacterium inoculations on growth, yield and nutrient uptake of summer groundnut in an alluvial soil at three levels of cobalt viz., zero, 0.21 kg and 0.42 kg ha-1 with four levels of inoculations viz., uninoculation, inoculation with Rhizobium, inoculation with phosphobacterium and inoculation with both Rhizobium and phosphobacterium. Results indicated that combined application of Rhizobium and phosphobacterium inoculation promoted higher dry matter production, pod yield, oil content and nutrient uptake as compared to application of either of the inoculations. Cobalt @ 0.21 kg ha-1 proved to be better to other doses of cobalt. The percent increase in pod yield of different treatment combinations over untreated control varied from, 2.4% with no inoculation + cobalt @ 0.42 kg ha-1 to 35.6% with Rhizobium + phosphobacterium + cobalt @ 0.21 kg ha-1. The uptake of N, P and K by groundnut was significantly higher in the treatments receiving both inoculation and cobalt at 0.21 kg ha-1 than sole application of either inoculation or cobalt.","PeriodicalId":6884,"journal":{"name":"Acta agriculturae Slovenica","volume":"1999 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139001900","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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