-
Naomi SHIOZAKI, Miyuki INOUE, Masaru MATSUMOTO, Kazuhiro IIYAMA, Narut ...
1995 Volume 41 Pages
1-6
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Takashi INOUE, Kaoru HANADA, Hisayoshi MIYAGAWA, Hiroshi TATENO, Eiich ...
1995 Volume 41 Pages
7-10
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Hisayoshi MIYAGAWA, Takashi INOUE
1995 Volume 41 Pages
11-14
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Miho MORIYAMA, Masatoshi OHNUKI, Hirotsugu KIYOTA, Kaoru HANADA
1995 Volume 41 Pages
15-17
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Shoichi IZUMI
1995 Volume 41 Pages
18-20
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Tsuruo KAYAMURA, Kouichi KOMAKI, Hirotsugu KIYOTA
1995 Volume 41 Pages
21-23
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Motoo KOITABASHI, Norihiko KOBAYASHI
1995 Volume 41 Pages
24-27
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
A filamentous fungus which produces a volatile material isolated from the wheat phylloplane inhibited the occurrence of wheat powdery mildew. This fungus could not be identified because sporulation has not been observed so far, and therefore, it was given the temporary strain name Kyu-W63. The purpose of this study was to clarify whether the inhibitory effect by Kyu-W63 that was observed in wheat powdery mildew would also be observed in the case of pathogenic fungi of fruit vegetables. As a result, this fungus inhibited the growth of Botrytis cinerea, Didvmella brvoniae, Colletotricum fragariea and C. acutatum on culture medium. The fungus also inhibited the germination of spores of Sphaerotheca fuliginea on leaf disks of cucumber. Furthermore, it remarkably inhibited the growth of hyphae after germination. The fungus inhibited the expansion of lesions caused by B. cinerea on fruits of eggplant. This inhibitory effect became more remarkable as the amount of fungus applied increased. These results suggested the possibility of this fungus being used as an effective agent of biological control of diseases in the above-ground parts of fruit vegetables.
View full abstract
-
Takanori YAMAGUCHI, Kazuo ABIKO, Kouichi KOMAKI
1995 Volume 41 Pages
28-32
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Tatsuhiko KARATSU, Yoshiichi KIJIMA, Shin-ya KOHASHIGUCHI
1995 Volume 41 Pages
33-35
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Hidenobu NOJIMA, Tamotsu KIKU, Osamu KUMAMOTO
1995 Volume 41 Pages
36-42
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Akira MORITA, Meisaku KOIZUMI
1995 Volume 41 Pages
43-46
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
The shoot-tip grafting (denoted to STG) method developed by Navarro was improved to establish a method for further enhancing the seedling maturation rate. At first, a method for enhancing the rate of successful grafts by STG was investigated. As a result, Troyer citrange seedlings were suitable for the rootstock of STG because this rootstock had a high rate of successful grafts throughout the year. Especially, the rate of successful grafts was highest when this rootstock was used 12 days after sowing. The rate of successful grafts was improved by using a silicon plug as the cap for the vessel containing medium for growing the STG seedling. Further, the rate of successful gragts was increased by applying heat-treatment to the scion for STG. A method for enhancing the rate of successful grafts by side grafting was also investigated. As a result, seedlings of Roughlemon as a rootstock for side grafting had the highest rate of successful grafts throughout the year. The scions obtained at different growth stages of plants made virus-free by STG were used for side grafting. A high rate of successful grafts was shown when the side grafting was carried out using scions which were obtained from plants just after a successful take of STG. Botrytis sp. bud rot frequently occurred after the take of side grafting. If a method to control this disease is developed, virus-free plants can be obtained using this improved STG at the ratio of 90% or higher.
View full abstract
-
Shigehiro BABA, Kazutoshi MATSUO, Wataru ENGI, Yasuhiro SUGA, Tetsuji ...
1995 Volume 41 Pages
47-50
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Hidehiko WAKIBE, Toshiki SHIOMI, Minoru TANAKA
1995 Volume 41 Pages
51-54
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
A disease of cosmos, showing the symptoms of yellows and witches' broom, was found in Saga Prefecture in 1993. Electron microscopy revealed the presence of numerous mycoplasma like organisms (MLOs) in the phloem tissues of the diseased plants. Of the two leafhoppers tested, Macrosteles striifrons ANUFRIEV and Scleroractus flavopictus ISHIHARA, only M. striifrons transmitted the disease. The host range of cosmos yellows MLO was similar to that of onion yellows MLO already reported in Saga Prefecture.
View full abstract
-
Miyuki INOUE, Masaru MATSUMOTO, Naruto FURUYA, Nobuaki MATSUYAMA
1995 Volume 41 Pages
55-57
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Kazushige SOGAWA, Hirotsugu KIYOTA
1995 Volume 41 Pages
58-62
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Hiroshi MATSUDA, Hidemi KAMIWADA, Osamu SETOGUTI
1995 Volume 41 Pages
63-64
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Hidemi KAMIWADA, Hiroshi MATSUDA, Tuyoshi HARUGUCHI
1995 Volume 41 Pages
65-68
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Yoshio MIYAHARA
1995 Volume 41 Pages
69-73
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Yoshiyuki HONDA
1995 Volume 41 Pages
74-77
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Keiji YASUDA
1995 Volume 41 Pages
78-80
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Tsuneo KINJO, Hiroaki NAKAMORI, Yasutsune SADOYAMA
1995 Volume 41 Pages
81-84
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Yukio ANDO
1995 Volume 41 Pages
85-87
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Zen-ichi SANO
1995 Volume 41 Pages
88-92
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
The organophosphorus nematicide, fosthiazate, was applied as an aqueous solution to the soil of potted tomato plants infected with Meloidogyne incognita to examine the effect of postinfection soil treatment on production of egg-masses and soil population densities of 2nd stage juveniles (J2). Fosthiazate was applied prior to egg-mass formation at 16 days postinoculation, or after egg-mass formation at 21, 26, 34, or 38 days postinoculation. The nematicide was applied at the concentration of 0.56, 1.67, or 5.0 ppm a. i. at 16 days postinculation or at 1.25, 2.5, or 5.0 ppm a. i. at 21, 26, 34, or 38 days postinoculation. All treatments were evaluated for production of egg-masses and soil J2 population densities at 47 days postinoculation. Number of egg-masses were reduced by 80-90% when the nematicide was applied at 5 ppm, 16, 21, or 26 days after inoculation of M. incognita. Applying 1.25 ppm fosthiazate 21 days after inoculation of M. incognita significantly suppressed egg-mass production. Numbers of J2 were also reduced by 70-90% at 5 ppm when the chemical was applied at 16, 21, or 26 days postinoculation, but the reduction in J2 numbers was less than 50% when 2. 5 ppm fosthiazate was applied.
View full abstract
-
Takashi SHIRAISHI
1995 Volume 41 Pages
93-95
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
1. A control trial utilizing the combination of natural enemies and selective chemicals in unheated greenhouses
Tomotoshi KASHIO
1995 Volume 41 Pages
96-101
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Keiko HAYASHI, Hiroyuki TAKEMOTO, Kazuro OHNO
1995 Volume 41 Pages
102-105
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Yasuhiro OGAWA, Mitsuhiro MURAKI, Takeshi TERAMOTO
1995 Volume 41 Pages
106-109
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
(6) A trend in the increase in the T. (S.) sinensis population in Kumamoto Prefecture
Yôzô MURAKAMI, Yutaka GYOUTOKU
1995 Volume 41 Pages
110-113
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
Parasitism of the chestnut gall wasp, Dryocosmus kuriphilus, by Torymus (Syntomaspis) sinensis in an experimental chestnut orchard in Ohzu, Kumamoto Pref., where the parasitoid was released in 1982, had been very low, less than 1%, in the six years following its release. However, the parasitoid population has increased since 1989; 4. 4 females of the parasitoid emerged per 100 galls of the host cynipid, and the parasitism rate reached 17% in 1993. The density of the host cynipid has not yet decreased but it has fluctuated at a high level. Two factors have already been suggested for the delay in the increment of the introduced parasitoid; a high mortality associated with the activity of the native facultative hyperparasitoids, and the low female sex ratio during several years after establishment. The sex ratio, however, has increased since 1991 and has maintained its normal level, and it has been followed by a rapid increase in the rate of parasitism and the number of females emerging per 100 host cynipid galls in the subsequent years.
View full abstract
-
Katsuo TSUDA, Masahiro YAMANAKA
1995 Volume 41 Pages
114-116
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Tadashi FURUIE, Hirotsugu KIYOTA
1995 Volume 41 Pages
117-120
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
Naoshi OMATSU, Susumu MAKINO, Shuji KAWASAKI, Youko MIYANOHARA
1995 Volume 41 Pages
121-124
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
1995 Volume 41 Pages
125-130
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
1995 Volume 41 Pages
130-139
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS
-
1995 Volume 41 Pages
140-146
Published: November 15, 1995
Released on J-STAGE: May 22, 2009
JOURNAL
FREE ACCESS