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Muneo OKADA
1993 Volume 1993 Issue 40 Pages
1-5
Published: November 01, 1993
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Tooru YAMASHITA, Kazuo TAKEDA
1993 Volume 1993 Issue 40 Pages
7-10
Published: November 01, 1993
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Kouki OHTA, Yao JIAN, Shigeru ISHIGAMI, Masanao SATO, Tokio MAKINO
1993 Volume 1993 Issue 40 Pages
11-13
Published: November 01, 1993
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Masanobu KOBAYASHI, Kazue YONEZU, Kouzou KANEKO
1993 Volume 1993 Issue 40 Pages
15-18
Published: November 01, 1993
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Shinichi UENO, Toshiaki TAKEHARA, Hideki NAITO, Katsuto KUNIYASU
1993 Volume 1993 Issue 40 Pages
19-22
Published: November 01, 1993
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The complementary reaction through heterokaryon formation between nitratenonutilizing (
nit) mutants of
Fusarium moniliforme was studied to understand the development mechanism to benomyl resistance. A benomyl resistant isolate with MIC value of 1600ppm showed the complementary reaction with less resistant ones (50≤MIC≤800) obtained from the same location in Tochigi, The complementary reactions between isolates obtained from different locations were rare. This result suggests that
F. moniliforme may acquire benomyl resistance through heterokaryon formation and isolates from different origin do not belong to same vegetative compatibility group.
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Tooru YAMASHITA, Jun YUMOTO, Ryouichi MATSUZAKI, Kazuo TAKEDA
1993 Volume 1993 Issue 40 Pages
23-24
Published: November 01, 1993
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Tsutomu ICHIMURA, Akira SHIMIZU, Mitsugu NEMOTO, Kunio NAKAZIMA, Osamu ...
1993 Volume 1993 Issue 40 Pages
25-26
Published: November 01, 1993
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Masahide OKAZAWA, Kazuo TAKEDA, Tooru YAMASITA
1993 Volume 1993 Issue 40 Pages
27-28
Published: November 01, 1993
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Kazufumu NISHI, Takeshi SATO, Hiroharu TAKAHASHI, Tokuji FUKUDA
1993 Volume 1993 Issue 40 Pages
29-30
Published: November 01, 1993
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Takeshi SATO, Kazufumi NISHI, Tokuji FUKUDA, Hiroharu TAKAHASHI
1993 Volume 1993 Issue 40 Pages
31-33
Published: November 01, 1993
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Kazufumi NISHI, Takeshi SATO, Tokuji FUKUDA
1993 Volume 1993 Issue 40 Pages
35-36
Published: November 01, 1993
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Ken WATANABE, Toshie TOMOTUNE, Ikuko YAMAZAKI, Kou SHIMONAGANE
1993 Volume 1993 Issue 40 Pages
37-40
Published: November 01, 1993
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Tsuneo CHIBA, Yasunori TOMITA
1993 Volume 1993 Issue 40 Pages
41-42
Published: November 01, 1993
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Toshihiko SHOJI
1993 Volume 1993 Issue 40 Pages
43-44
Published: November 01, 1993
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Norikazu HAYAMA, Yuji NAGAI
1993 Volume 1993 Issue 40 Pages
45-46
Published: November 01, 1993
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Taeko TAKEUCHI
1993 Volume 1993 Issue 40 Pages
47-49
Published: November 01, 1993
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Sigeru AKITA
1993 Volume 1993 Issue 40 Pages
51-54
Published: November 01, 1993
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Sigeru AKITA
1993 Volume 1993 Issue 40 Pages
55-57
Published: November 01, 1993
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Seiju ISHIKAWA, Shinichi UENO, Kiichi NAKAYAMA
1993 Volume 1993 Issue 40 Pages
59-61
Published: November 01, 1993
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Three strains of
Colletotrichum gloeosporioides and three strains of
C. acutatum were tested concerning their ability to give rise to chlorate-resistant nitrate non-utilizing mutants (
nit mutants) when they were cultured on a minimal medium containing 1.5% KClO
3. All strains gave rise to mutants that could be placed in phenotypes of
nit mutants.
C. gloeosporioides mainly gave rise to
nit1. While
C. acutatum gave rise to
nit1 and Nit3. All six strains did not give rise to
nit2. Three
nit mutants tested were pathogenic to strawberry.
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Seiju ISHIKAWA, Kiichi NAKAYAMA, Joji TSUNEMI
1993 Volume 1993 Issue 40 Pages
63-68
Published: November 01, 1993
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The capillary watering system raising nursery in pot mechanically inhibited the dispersal of the conidia and successfuly depressed the spread of strawberry anthracnose. It was demonstrated that the conidia of
Glomerella cingulate (=
Colletotrichum gloeosporioides) were effectually dispersed in the water droplets and the wind. The conidia were hardly blown off by the wind in the absence of water. When the conidia on the diseased leaves were contacted with the water, they were immediately suspended into the water droplets which was splashed and blown by the wind.
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Yutaka SHIMAZAKI, Tomoko KAWASAKI, Atsushi NOGUCHI
1993 Volume 1993 Issue 40 Pages
69-71
Published: November 01, 1993
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Hiromoto HOMMA, Masaki MOTOMIYA
1993 Volume 1993 Issue 40 Pages
73-75
Published: November 01, 1993
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Hiromoto HOMMA, Hiroyuki IIJIMA
1993 Volume 1993 Issue 40 Pages
77-80
Published: November 01, 1993
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Takashi OHSAWA
1993 Volume 1993 Issue 40 Pages
81-83
Published: November 01, 1993
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Seiji UEMATSU, Kouichi KODAMA, Yasuhiro NAKAMURA
1993 Volume 1993 Issue 40 Pages
85-88
Published: November 01, 1993
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Rhizoctonia rot/blights of muskmelon
Cucumis melo var,
reticulatus, scarlet plume
Euphorbia fulgens, stock
Matthiola incana and parsley
Petroselinum crispum caused by
Rhizoctonia solani AG-4, and balloon flower
Platycodon grandiflorus, Boston fern
Nephrolepis exaltata var.
bostoniensis hort, and bishop's weed
Ami majus caused by
R. solani AG-2-2 occurred in Chiba Prefecture. Inoculation experiments showed that the fungi were the causal agents of the diseases.
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Shigeru HATANO, Shinichi YAMAMOTO, Kunio ETO, Hideo INO, Haruo SUZUKI, ...
1993 Volume 1993 Issue 40 Pages
89-92
Published: November 01, 1993
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To study the resistance of cucurbit crops against cucumber mosaic virus (CMV) by aphid transmission, a field test was performed. Numbers of plants showing symptoms were checked at successive days. Infection and concentration of CMV were checked by ELISA. The results showed that cucumber cultivars were generally resistant against CMV but that CMV concentration varied depending on cultivars. “Sachinari” revealed to contain CMV in high concentration, but out of ten plants, only two showed mosaic symptoms. “Natsusango” showed strong resistance in both symptomatology and virus concentration. Each melons showed low levels of resistance against CMV infection, however generally CMV concentration was not high.
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Kiichi NAKAYAMA, Mitsuro KAMEYA-IWAKI, Seiju ISHIKAWA, Joji TSUNEMI
1993 Volume 1993 Issue 40 Pages
93-95
Published: November 01, 1993
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Katsuto KUNIYASU, Toshiaki TAKEHARA, Tsuneo CHIBA, Katsuo UEHARA, Akir ...
1993 Volume 1993 Issue 40 Pages
97-99
Published: November 01, 1993
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Fumiyoshi FUKUMOTO, Fumihiro TERAMI, Masayoshi ISHII
1993 Volume 1993 Issue 40 Pages
101-103
Published: November 01, 1993
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Jun TAKEUCHI, Toshiichi HIRANO, Hiromichi HORIE, Atushi OHKAWA, Hideo ...
1993 Volume 1993 Issue 40 Pages
105-107
Published: November 01, 1993
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Hiromichi HORIE, Jun TAKEUCHI
1993 Volume 1993 Issue 40 Pages
109-111
Published: November 01, 1993
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Of 54 isolates tested, 4 isolates of
Phytophthora cactorum from udo and 10 isolates of unidentified
Phytophthora species, each one from
Rhoeo discolor and
Brodiaea and 8 isolates from gerbera, showed distinct pathogenicity to udo by artificial inoculation test. Nine isolates of
P. cactorum from six different crops except udo were clearly inferior to the isolates from udo in virulence to blanched stem of udo.
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Hiromichi HORIE, Jun TAKEUCHI
1993 Volume 1993 Issue 40 Pages
113-115
Published: November 01, 1993
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Phytophthora rot developed on blanched stem of udo in the temperature range of 10 to 30°C, with the optimum temperature at 20°C and the second best at 15 or 18°C. Sclerotinia rot developed at 10 to 25°C with the optimum temperature being 20°C and southern blight developed at 15 to 35°C, with the optimum temperature at 25°C. The optimum temperature on the development of Phytophthora rot and Sclerotinia rot obtained by artificial inoculation test agreed with the optimum room temperature in blanching culture.
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Kazunori ICHIKAWA, Yoshiteru MURAKAMI, Shigefumi TSUTIYA
1993 Volume 1993 Issue 40 Pages
117-118
Published: November 01, 1993
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Akihiko IIJIMA
1993 Volume 1993 Issue 40 Pages
119-121
Published: November 01, 1993
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Mitsuru HORIGOME, Tadahisa NAKAJYOU
1993 Volume 1993 Issue 40 Pages
123-124
Published: November 01, 1993
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Yasuhiko IWANAMI, Yoshinari SAITO
1993 Volume 1993 Issue 40 Pages
125-127
Published: November 01, 1993
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Masayuki TOGAWA, Shinichi MASUI
1993 Volume 1993 Issue 40 Pages
129-130
Published: November 01, 1993
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Seisaku UMEMOTO
1993 Volume 1993 Issue 40 Pages
131-132
Published: November 01, 1993
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Katsumi HIROMA, Mahito NAKAMURA, Kazuyuki IWASAKI
1993 Volume 1993 Issue 40 Pages
133-134
Published: November 01, 1993
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Yasumitsu KAWAI
1993 Volume 1993 Issue 40 Pages
135-137
Published: November 01, 1993
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Akifumi MIZUNO, Shinji KOTANINO, Hironori TOMONO, Toyozo SATO, Koushi ...
1993 Volume 1993 Issue 40 Pages
139-141
Published: November 01, 1993
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Tokiya SHIMIZU, Reiichi AKANUMA, Ichiro FUJISAWA, Toshihiro SENBOKU, M ...
1993 Volume 1993 Issue 40 Pages
143-145
Published: November 01, 1993
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Yasunori TOMITA, Tuneo CHIBA
1993 Volume 1993 Issue 40 Pages
147-149
Published: November 01, 1993
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Mamoru SATOU, Koji FUJII, Fumiyoshi FUKUMOTO, Nobuo TEZUKA, Seizo HORI ...
1993 Volume 1993 Issue 40 Pages
151-152
Published: November 01, 1993
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Hiroyuki MIZUNO
1993 Volume 1993 Issue 40 Pages
153-156
Published: November 01, 1993
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Infection degrees of tested cultivars were remarkably influenced by the soil temperature, and increased with rising temperature. Temperature over than 25°C was necessary for effective screening of resistant cultivars.
In general, infection degree of middle resistant cultivars to race 2 increased quickly under the optimum soil temperature and high inoculum concentration, and the resistant level was evaluated to be near susceptible.
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Hiroyuki MIZUNO
1993 Volume 1993 Issue 40 Pages
157-159
Published: November 01, 1993
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Race differentiation of
Fusarium oxysporum f. sp.
dianthi isolates from carnation growing areas in Japan were investigated with differential cultivars mainly used in Holland. Most isolates tested were considered to belong to race 2 by the reactions to the differential cultivars.
It is difficult to say that a dominant race in Japan is race 2 with the results of only 18 isolates, But it could be suggested that race 2 is distributed widely in Japanese carnation growing areas.
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Jun TAKEUCHI, Hiromichi HORIE
1993 Volume 1993 Issue 40 Pages
161-162
Published: November 01, 1993
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Leaf blight of
Gazania×
splendens and web blight of
Conteaster salicifolius occurred in Tokyo Metropolis in 1992. A Rhizoctonia species isolated from diseased plants was identified as
R. solani AG-1. Inoculation experiments showed that the fungus was the causal agent of these diseases.
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Jun TAKEUCHI, Hiromichi HORIE
1993 Volume 1993 Issue 40 Pages
163-165
Published: November 01, 1993
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Sclerotium southern blight of
Peperomia caperata,
Ophiopogon japonicus f.
nanus and
Ajuga reptans occurred in Tokyo Metropolis in 1992, 1992 and 1983, respectively. The causal fungus isolated from diseased plants was identified as
S. rolfsii by morphological observations and inoculation tests.
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Seiji UEMATSU, Toshimasa SHIRAISHI, Toshihiko SHOJI, Kiichiro SEKIYAMA ...
1993 Volume 1993 Issue 40 Pages
167-170
Published: November 01, 1993
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Two
Pythium species were isolated from rotted secondary roots of collapsed plants of
Eustoma grandiflorum during 1987-1992 in Kanto district and identified as
P. irregulare and
P. spinosum. An inoculation experiment showed that the fungi were the causal agents of the disease. Granular applications of metalaxyl were significantly effective for control of the disease. Soil drenches of benomyl, captan or hymexazol did not reduced the damage.
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Seiji UEMATSU, Kouichi KODAMA, Yasuhiro NAKAMURA
1993 Volume 1993 Issue 40 Pages
171-174
Published: November 01, 1993
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In 1992, Sclerotium rot of
Alstroemeria spp, .
Nerine bowdenii, Phalaenopsis hybrids,
Solanum mammosum and
Tulbaghia fragrans occurred in Chiba Prefecture. A
Sclerotium species isolated from diseased plants was identified as
S. rolfsii Sacc. Inoculation experiments showed that the fungus was the causal agent of the diseases.
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