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24 27 Tadesse T. et al.: 2001. Relative humidity around the fruit influences the mineral composition and incidence of blossom-end rot in sweet pepper fruit — The Journal of
Absztrakt
A szárazsó-belégzés a sóbányák egészségre hasznos klímáját reprodukálja mesterséges környezetben. Lényege, hogy a vegytiszta nátrium-klorid-kristályokat 3 µm-nél kisebb átmérőjű szemcsékké őrlik és elporlasztva egy kellemesen hűvös és alacsony relatív páratartalmú szoba levegőjébe fújják, amíg annak koncentrációja 10–30 mg/m3 lesz a szoba levegőjében. A beteg (vagy egészséges) személyek ezt lélegzik be 30–60 percen keresztül, általában kúraszerűen 10–20 egymás utáni alkalommal. A belélegzett só ozmózisos nyomása révén csökkenti a nyálkahártya-ödémát, mérsékli annak gyulladását, hígabbá teszi a váladékot, könnyíti és gyorsítja annak kiürítését (ezáltal a légszennyező anyagok és allergének eltávolítását is), gátolja a baktériumok növekedését, sőt elpusztítja azok egy részét és fokozza a fagocitaaktivitást. Kedvező hatással van a betegek közérzetére (relaxációs hatású), megelőzi vagy legalább ritkábbá teszi a légúti gyulladásokat, sőt a kóros légzésfunkciós értékeket is javítja. Jelentősen mérsékli a hörgő-hiperreaktivitás mértékét, ami a gyulladás csökkenésére utal. Nem csupán az alsó légúti gyulladások kezelésére alkalmas, hanem a heveny és idült felső légútiakéra is. Kedvező hatása néhány idült bőrbetegségben (például atopiás dermatitis, psoriasis, pyoderma) is bizonyított. E kezelés (Indisó néven) orvosi ellenőrzés mellett Magyarországon is hozzáférhető. Orv. Hetil., 2015, 156(41), 1643–1652.
Pepper fruits were sprayed with benzothiadiazole (BTH) and hydrogen peroxide (H 2 O 2 ) three times after harvest. Three days after the third spray, pepper fruits were inoculated with Botrytis cinerea (10 5 conidia/ml under 20 °C, 99% relative humidity). Under postharvest conditions (without artificial inoculation) BTH at 0.9 mM and H 2 O 2 at 20 or 50 mM reduced the weight loss, natural rot rate and nitrate content, however, ascorbic acid content and the shelf-life of fruits were increased significantly.When pepper fruits were inoculated with the fungus and treated with BTH (0.9 mM) and H 2 O 2 (50 mM) treatments, disease severity was reduced to 29.6 and 34%, respectively, as compared with the control (77.3%). Diameter of necrotic lesions were 1.2 and 1.38 mm, respectively, as compared with the control (2.8 mm).BTH (0.9 mM) and H 2 O 2 (50 mM) increased the level of endogenous H 2 O 2 and total phenolic contents 3–6 days after inoculation (dai) which are considered to play a pivotal role in plant disease resistance. Activities of the antioxidant enzymes dehydroascorbate reductase (DHAR), ascorbate peroxidase (APX), catalase (CAT) and peroxidase (POX) decreased at 3 and 6 dai then increased between 9–15 dai. The effectiveness of BTH treatment was always higher than that of 50 mM H 2 O 2 (high concentration).Low concentration of H 2 O 2 (20 mM) enhanced the antioxidant activities in infected fruits, however, the level of H 2 O 2 and total phenolic compound contents were not altered significantly, thus, the fungus was not inhibited.The results showed that BTH (0.9 mM) and H 2 O 2 (50 mM) treatments enhanced disease resistance against the fungus early after inoculation by elevating the level of endogenous H 2 O 2 and phenolic contents. Low concentration of H 2 O 2 (20 mM) was able to increase activity of antioxidants which may contribute to symptom’s resistance but did not inhibit the pathogen importantly. It would seem that BTH and H 2 O 2 could be suitable to control postharvest diseases.
Abstract
South-Eastern part of Romania has a highest potential seismic risk in Europe due to the earthquake-prone Vrancea zone placed at conjunction of four tectonic blocks in the South-Eastern part of Carpathian Arc. This paper is an attempt to analyze the development of radon pre-earthquake anomaly in relation with moderate seismic events in Vrancea area through permanent monitoring with solid state nuclear track detectors CR-39 detectors. Radon in air above the ground was measured during 1 year period (November 2010–October 2011) in four selected test sites: Vrancioaia (VRI) and Plostina (PLOR) located in Vrancea zone, and Muntele Rosu-Cheia and Bucharest. During sampling period recorded earthquakes that occurred mostly in Vrancea epicentral region were minor-moderate of moment magnitudes in range of
relative humidity. Seed Sci. Technol. , 25 , 93-99. Six month storability of five soybean cultivars as influenced by stage of harvest, storage temperature and relative humidity Seed Sci. Technol
1994 Effect of atmospheric relative humidity on aerosol size distribution Indian Journal of Radio and Space Physics 23 175 188
Joao Abba E. — Lovato, A. (1998): Effect of storage temperature and relative humidity on maize ( Zea mays L.) seed viability and vigour. Abstracts of the Seed Symposium of the 25th International Congress of ISTA, April 15 th –24 th
. Ballesteros , J. , García-Llamas , C. , Ramirez , M.C. , Martín , A. , Weber , W.E. 2003 . Low relative humidity increases haploid production in durum wheat × maize crosses . Plant Breeding 122 : 276 – 278
Riganakos, K.A. & Kontominas, M.G. (1997): Study of water sorption of flours (wheat and soy) using hygrometric method: effect of relative humidity during heat treatment. Z. Lebensm.-Unters. Forsch. A , 204 , 369
factors such as light, relative humidity, and pollutants on objects both in outdoor and indoor environments are studied in preventive conservation. To achieve this, monitoring is performed of the microclimate surrounding the object using both diffusive
