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botrytis cinerea pers
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     U.
     青藏亚种U .
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     and O.
     和短枝褶藓 O .
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     , Botrytis spp. .
     和葡萄孢属(Botrytis spp.)
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     ,Botrytis spp.
     、葡萄孢菌(Botrytis spp.)
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     ,Botrytis cinerea Pers.
     、青霉属Penicilliumsp. 、灰葡萄孢Botrytis cinereaPers.
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This paper makes a study of the biological characters of Botrytis cinerea Pers., which infected the leaves of the mulberry. The results could summarize as follows:1. The fungus had a capacity to grow from about 5 to 25℃, and the optimum temperture was at 20 to 25℃. When the temperature was below 10℃ the mycelia of this fungus could still proliferate, but could not from its conidia.2. The conidia germinated rapidly with a high germination rate in the presence of the mulberry leaf juice. The germination...

This paper makes a study of the biological characters of Botrytis cinerea Pers., which infected the leaves of the mulberry. The results could summarize as follows:1. The fungus had a capacity to grow from about 5 to 25℃, and the optimum temperture was at 20 to 25℃. When the temperature was below 10℃ the mycelia of this fungus could still proliferate, but could not from its conidia.2. The conidia germinated rapidly with a high germination rate in the presence of the mulberry leaf juice. The germination was markedly affected by the temperature. Investigations had confirmed the fact that below 7 ℃ and above 30℃ the germination rate was very low, and the optimum temperature lay between 20 and 25℃. However, if the conidia were collected from the field with the infected leaves in October and kept them indoors for the winter, they could not germinate in April next year.3. This fungus grew very well on the PAS or PDA medium containing the mulberry leaf juice. The optimun pH was neutural or slightly acid although the growth pH could be in the range of 4.4 to 9.0.4. The blacklight irradiation could promote the formation of the conidia.

桑树灰霉病病菌(Botytis cinerea Pers.)生长温度范围5~25℃,最适20~25℃,在10℃以下只能长菌丝,不长分生孢子。分生孢子在有桑叶汁液存在时,萌发快,萌发率高,萌发温度范围7~30℃;最适20~25℃。秋末(10月下旬)采集有分生孢子的病叶悬挂室内,翌年4月中、下旬分生孢子不能萌发,培养基以PSA加桑叶汁液及PDA加桑叶汁液对本病菌生长尤佳。病菌在pH4.4~9范国内均能生长,最适是中性到偏酸,黑光灯照射能促进本病菌分生孢子的形成。

For research on classification of Sclerotinia sclerotiorum and related species, more than 60 cultures of Sclerotinia species were collected and isolated from different cultivars from south and north China from 1979 to 1984. Among them, 28 isolates were selected for study in morphologic and cultural characters as well as in mycelial interaction. Two methods of classification reached the same result. 28 isolates were divided into 5 species, of which 4 species belonged to Sclerotinia Fuckel. They were S. sclerotiorum...

For research on classification of Sclerotinia sclerotiorum and related species, more than 60 cultures of Sclerotinia species were collected and isolated from different cultivars from south and north China from 1979 to 1984. Among them, 28 isolates were selected for study in morphologic and cultural characters as well as in mycelial interaction. Two methods of classification reached the same result. 28 isolates were divided into 5 species, of which 4 species belonged to Sclerotinia Fuckel. They were S. sclerotiorum (Lib. ) de Bary, S. trifoliorum Eriks., S. asariWu et C. R. Wang and Sclerotinia sp. an isolate from Panax ginseng. The other species was Botrytis cinerea Pers.

从采集和分离到80多个核盘菌株,对其中28个代表菌株(种和菌系)进行形态学和培养性■以及菌株间菌丝交接反应研究。两种分类鉴定方法对供试菌株的分类结果完全一致。28株供试菌株共分为5个种,属于核盘菌有4个种,即核盘菌Sclortinia sclerotiorum(Lib.)de Bary,三叶草核盘菌S.trifoliorum Erikss,细辛核盘菌S.asari Wu ct.C.R.Wang和人参菌核病菌Sclerotinia sp.。有2个菌株属于Botrycis cincrea.

Tianmou Mountain area is important producing area of Cornus officinalis.Recently a new botrytis diseases occured in this area. It made a great of seedling die ofshed leaves and it seriously influence quality and yield of seedling. Disease occured in April-June. This disease was due to Botrytis cinerea Pers ex Fr. Occurrence of disease and popularityhad relation to rainfall and raing days of April-June, humidity of seed plot, ventilationdegree, seedling density and xyloidize degree of seedling.

近年来浙江山茱萸重要产区天目山区的山茱萸苗木,发生了一种新的叶枯病。该病使苗木大量落叶枯死,严重影响苗木质量和产量。病害发生在4~6月。经一系列病理试验,确认该病是由灰葡萄孢菌(Botrytis cinerea Pers.ex Fr.)侵染所致。病害的发生和流行,同4~6月雨量、雨日、圃地湿度、通风度、苗木密度及苗木自身木质化程度有关。

 
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