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André Freire Cruz,Nathalia Lima Medeiros,Gustavo Lessa Benedet,Maira Borges Araújo,Carlos Hidemi Uesugi,Marisa Alvares da Silva Velloso Ferreira,José Ricardo Peixoto,Luiz Eduardo Bassay Blum 한국원예학회 2015 Horticulture, Environment, and Biotechnology Vol.56 No.3
The control of anthracnose (Colletotrichum simmondsii) during the post-harvest stage in guava fruits (Psidium guajava L.) was performed by the application of phosphites [phosphite-K (40% P2O5 and 30% K2O) and phosphite-Ca (10.7% P2O5, 3.89% Ca, and 0.5% B)] including the Carbendazim as reference, calcium chloride (CaCl2), acetyl salicylic acid (ASA), hot water (HW), and 1-methylcyclopropene (1-MCP). These treatments were applied individually or in combination each other with two or three compounds. The evaluated parameters were diameter of anthracnose lesion (DL), number of lesions (NL), and fruit quality (fresh weight loss, pH, total soluble solids, and titrable acidity]. The fruits were disinfested, inoculated, and maintained in an incubator containing fluorescent lights at 75 μmol·m-2·s-1 (25°C, 12h photoperiod) for 5 days and were then analyzed. The results showed that the DL and the NL were reduced following treatments, and that the HW (47°C for 20 min) was the strongest and the 1-MCP treatment was the least effective. The physico-chemical characteristics of fruits were affected by some treatments without compromising fruit quality. The combination of treatments was also able to alleviate the anthracnose effect on fruits compared to individual treatments and the control without affect the fruit quality. The combinations which included the HW treatment showed the best performance to control this disease, particularly when combined with the 1-MCP and phosphite.
한국에 서식하는 침엽수의 잎과 난초과 식물의 뿌리에서 분리한 5종의 국내 미기록 내생균
박혁 ( Hyeok Park ),이봉형 ( Bong-hyung Lee ),배유라 ( Yu-ra Bae ),김동여 ( Dong-yeo Kim ),엄안흠 ( Ahn-heum Eom ) 한국균학회 2016 韓國菌學會誌 Vol.44 No.4
We collected leaves of Pinus koraiensis and Thuja koraiensis and roots of Bletilla striata from various sites in Korea. The leaf and root samples were surface-sterilized and endophytic fungi were isolated. Fungal isolates were identified based on their morphological characteristics and a phylogenetic analysis of internal transcribed spacer regions, large subunit regions, and the β-tubulin gene. Consequently, we identified five species of endophytic fungi, namely Colletotrichum simmondsii, Fusarium sterilihyphosum, Diatrypella pulvinata, Ochroconis globalis, and Sphaeria chrysosperma. These species have not been previously reported in Korea and we report them here with descriptions and illustrations.