TY - JOUR AU - Ezzat, Ahmed AU - Hegedűs, Attila AU - Szabó, Szilárd AU - Ammar, Amin AU - Szabó, Zoltán AU - Nyéki, József AU - Csengőné Molnár, Bianka Szilvia AU - Holb, Imre TI - Temporal Changes and Correlations between Quality Loss Parameters, Antioxidant Properties and Enzyme Activities in Apricot Fruit Treated with Methyl Jasmonate and Salicylic Acid during Cold Storage and Shelf-Life JF - APPLIED SCIENCES-BASEL J2 - APPL SCI-BASEL VL - 10 PY - 2020 IS - 22 SN - 2076-3417 DO - 10.3390/app10228071 UR - https://m2.mtmt.hu/api/publication/31665327 ID - 31665327 AB - The apricot storability is one of the largest challenges, which the apricot industry has to face all over the world; therefore, finding options for prolonging fruit quality during cold storage (CS) and shelf-life (SL) will help to decrease postharvest losses of apricot. The aim of this apricot fruit work was to study the temporal changes and correlations of 10 quality parameters (quality losses, antioxidant properties and enzyme activities) in the postharvest treatments of methyl jasmonate (MeJA) and salicylic acid (SA) under 1 degrees C CS (7, 14 and 21 days) and 25 degrees C SL (4 and 8 days after the 21-day CS) treatments. MeJA and SA significantly decreased the quality loss of chilling injury (CI) and fruit decay (FD) at all dates for both storage conditions. MeJA- and SA-treated fruits increased total antioxidant capacity (TAC), total soluble phenolic compounds (TSPC) and carotenoids contents (TCC) at all dates of both storage treatments. In contrast, the ascorbic acid content (AAC) increased only until days 14 and 4 in the CS and SL treatments, respectively. Among enzyme activity parameters, the activities of phenylalanine ammonia-lyase (PAL), peroxidase and superoxide dismutase (SOD) were significantly increased in the MeJA and SA treatments in all dates of both storage treatments. Catalase (CAT) activity increased in the SA and control treatments, while it decreased in the MeJA treatment in both storage conditions. In both the MeJA and the SA treatments, six pair-variables (FD vs. CI, PAL vs. CAT, PAL vs. SOD, TAC vs. SOD, TAC vs. FD, and AAC vs. CI) were significant in Pearson correlation and regression analyses among the 45 parameters pairs. Principal component analyses explained 89.3% of the total variance and PC1 accounted for 55.6% of the variance and correlated with the CI, FD, TAC, TSPC, TCC, PAL and SOD, indicating strong connections among most parameters. In conclusion, MeJA and SA are practically useful and inexpensive techniques to maintain quality attributes of CI, FD, TAC, TSPC, TCC, PAL, POD and SOD in apricot fruit during both CS and SL conditions. LA - English DB - MTMT ER - TY - BOOK ED - Nyéki, József ED - Szabó, Tibor ED - Soltész, Miklós TI - Meggy: A jövedelmező intenzív termesztés alapjaival ET - 0 PB - Újfehértói Gyümölcstermesztési Kutató és Szaktanácsadó Nonprofit Közhasznú Kft. CY - Újfehértó PY - 2016 SP - 425 SN - 9789631265231 UR - https://m2.mtmt.hu/api/publication/3121474 ID - 3121474 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Thurzó, S AU - Nyéki, József AU - Drén, G AU - Dani, M AU - Racskó, J AU - Pedryc, Andrzej AU - Hermán, Rita AU - Soltész, M AU - Szabó, Zoltán ED - Veisz, Ottó Bálint ED - Polgár, Zsolt TI - A csonthéjas gyümölcsfajok és fajták téli fagytűrése T2 - XXII. Növénynemesítési Tudományos Nap: összefoglalók PB - Magyar Tudományos Akadémia (MTA) CY - Budapest SN - 9789633960851 PY - 2016 SP - 171 EP - 171 PG - 1 UR - https://m2.mtmt.hu/api/publication/1177256 ID - 1177256 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Pedryc, Andrzej AU - Ripka, Géza AU - SZABÓ, P AU - Nyéki, József AU - Szabó, Zoltán AU - Hegedűs, Attila AU - Halász, Júlia ED - Veisz, Ottó Bálint ED - Polgár, Zsolt TI - Japánszilva (Prunus salicina Lindl.) és cseresznyeszilva (Prunus cerasifera Ehrh.) genotípusok S-lókuszának változékonysága T2 - XXII. Növénynemesítési Tudományos Nap: összefoglalók PB - Magyar Tudományos Akadémia (MTA) CY - Budapest SN - 9789633960851 PY - 2016 SP - 143 EP - 143 PG - 1 UR - https://m2.mtmt.hu/api/publication/1177235 ID - 1177235 LA - Hungarian DB - MTMT ER - TY - BOOK AU - Apostol, J AU - Dénes, F AU - Dibuz, Erzsébet AU - Erdős, Z AU - Hermán, Rita AU - Kerek, M M AU - Kocsisné, Molnár G AU - Nyéki, József AU - Pedryc, Andrzej AU - Porpáczy, A AU - Soltész, Miklós AU - Surányi, Dezső AU - Szabó, T AU - Szabó, Z AU - Szani, Zs AU - Szentiványi, P AU - Tóth, Magdolna ED - Soltész, M TI - Magyar Gyümölcsfajták PB - Mezőgazda Kiadó CY - Budapest PY - 2014 SP - 523 SN - 9789632866987 UR - https://m2.mtmt.hu/api/publication/25076511 ID - 25076511 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Persely, Sz AU - Ertsey, Imre AU - Ladányi, Márta AU - Nyéki, József AU - Soltész, Miklós AU - Szabó, Z AU - Davarynejad, G H AU - Szabó, T TI - Climatic indicator analysis of bloom time for sour cherries JF - ACTA HORTICULTURAE: TECHNICAL COMMUNICATIONS OF ISHS J2 - ACTA HORTICULTURAE VL - 1020 PY - 2014 SP - 239 EP - 246 PG - 8 SN - 9789462610071 SN - 0567-7572 DO - 10.17660/ActaHortic.2014.1020.35 UR - https://m2.mtmt.hu/api/publication/2721607 ID - 2721607 LA - English DB - MTMT ER - TY - JOUR AU - Kocsisné Molnár, Gitta AU - Kocsis, László AU - D., van Maurik AU - Nyéki, József AU - Szabó, Zoltán AU - Soltész, Miklós TI - Influence of black hail nets on canopy size, reproductive potential and fruit characteristics of apple trees JF - ACTA HORTICULTURAE: TECHNICAL COMMUNICATIONS OF ISHS J2 - ACTA HORTICULTURAE VL - 984 PY - 2013 SP - 157 EP - 162 PG - 6 SN - 0567-7572 UR - https://m2.mtmt.hu/api/publication/2400224 ID - 2400224 N1 - WoS:hiba:000323639300016 2019-03-09 02:29 típus nem egyezik LA - English DB - MTMT ER - TY - JOUR AU - Nagy, Péter Tamás AU - Nyéki, József AU - Szabo, Z TI - Are Organic Apples Really Healthier? JF - ACTA HORTICULTURAE: TECHNICAL COMMUNICATIONS OF ISHS J2 - ACTA HORTICULTURAE VL - 933 PY - 2012 SP - 607 EP - 611 PG - 5 SN - 0567-7572 UR - https://m2.mtmt.hu/api/publication/2771779 ID - 2771779 N1 - BE Aksoy, U WoS:hiba:000314777600079 2019-03-09 09:34 típus nem egyezik AB - As consumers' demand for organic fruits continues to increase, organic horticulture has increased worldwide. Proper nutrition management is a key factor in organic farms to produce healthy, well-developed and attractive fruits which meet consumers' demands. To achieve this goal organic farmers need to develop and improve their nutrition management. In this paper an organic and integrated apple plantation were compared to study their fruit quality parameters and to establish the similarities and differences between production systems. Sugars, organic acids, vitamin C and number of healthy fruit were studied in the same apple cultivars from an organic and an integrated orchard. Besides chemical analysis, an organoleptic survey was conducted to estimate consumer response. The results showed that fructose and sucrose were the major sugars and malic acid the predominant acid. From our data it was clear that fruit components such as acids and sugars were affected by cultivars more than production system. In addition, the organoleptic survey did not identify any differences between organic and integrated products. The majority of tasters preferred integrated fruit over organic fruit. In summary, organic farmers make more efforts to increase fruit productivity, quality and design but such increased efforts may not ensure consistent profit for Hungarian fruit growers due to market conditions. LA - English DB - MTMT ER - TY - JOUR AU - Nagy, Péter Tamás AU - Nyéki, József AU - Szabo, Z TI - Comparative Study of Nutrient Availability in Integrated and Organic Apple Orchards JF - ACTA HORTICULTURAE: TECHNICAL COMMUNICATIONS OF ISHS J2 - ACTA HORTICULTURAE VL - 933 PY - 2012 SP - 227 EP - 231 PG - 5 SN - 0567-7572 UR - https://m2.mtmt.hu/api/publication/2771778 ID - 2771778 N1 - BE Aksoy, U WoS:hiba:000314777600027 2019-03-09 09:34 típus nem egyezik AB - Nowadays, there is an increasing interest in environmental friendly fruit growing systems. Regarding this, the most frequented environmentally-benign fruit management systems are the integrated and organic systems. Although there are several differences between these growing systems only few information is available about their nutritional aspects, mostly in eastern Europe. Our experimental site (eastern Hungary) gave excellent possibility to carry out a comparative study to investigate differences between these growing systems because the plantations are situated side by side. The aim of our two-year study was to compare the nutrient status of the soil-leaf-fruit system in integrated and organic apple management systems, and take an effort to improve nutrient supply in environmentally friendly apple orchards. For leaf and fruit analysis four cultivars were selected. A traditional Hungarian cultivar: 'Idared', and three resistant cultivars 'Rewena', 'Reanda' and 'Retina'. It was found that the seasonal patterns of examined nutrients were similar in both growing systems but the availability of these nutrients was more stable in the integrated orchard than in the organic one due to the fertilization management. Results suggested that applying chemical fertilizers in integrated orchards provided higher nutrient uptake, yield and resulted better fruit quality than in organic orchards where only natural nutrient sources are allowed. Detailed soil, leaf and fruit results are discussed in the paper. LA - English DB - MTMT ER - TY - BOOK ED - Nyéki, József ED - Soltész, Miklós ED - Szabó, Zoltán TI - Minőségi szilvatermesztés; 200 p. ET - 0 PB - Debreceni Egyetem Agrártudományi Centrum CY - Debrecen PY - 2012 SN - 9789634735922 UR - https://m2.mtmt.hu/api/publication/2386992 ID - 2386992 LA - Hungarian DB - MTMT ER -