Nippon Nōgeikagaku Kaishi
Online ISSN : 1883-6844
Print ISSN : 0002-1407
ISSN-L : 0002-1407
Volume 54, Issue 2
Displaying 1-7 of 7 articles from this issue
  • Hiromu KAMEOKA, Seiji HASHIMOTO
    1980 Volume 54 Issue 2 Pages 99-103
    Published: 1980
    Released on J-STAGE: November 21, 2008
    JOURNAL FREE ACCESS
    The steam volatile oils were obtained by steam distillation from flowers, stems and leaves, and roots, respectively. Each steam volatile oil was chemically separated into three fractions: i.e. neutral, sodium bicarbonate soluble and sodium hydroxide soluble fractions. Each fraction was investigated by GLC, IR, NMR and MS spectra. The components were characterized by coincidence of the analytical data with those of authentic compounds or published data. A total of 34 compounds were characterized and their relative quantities were determined by GLC. The characteristic major components were 3-butenonitrile, n-butyl isothiocyanate, allyl isothiocyanate, dimethyl trisulfide, phenylacetonitrile, 3-phenylpropiononitrile, 3-phenylpropionamide and 2-phenylethyl isothiocyanate.
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  • Osamu NAKANISHI, Itsuo ICHIMOTO, Hiroo UEDA
    1980 Volume 54 Issue 2 Pages 105-109
    Published: 1980
    Released on J-STAGE: November 21, 2008
    JOURNAL FREE ACCESS
    E and Z forms of (3, 5, 5-trimethyl-2-cyclohexene-1-ylidene)-acetonitrile (10), (3-methyl-2-cyclohexene-1-ylidene)-acetonitrile (8') and 1-(3-methyl-2-cyclohexene-1-ylidene)-2-propanone (1') were hydrogenated over 5% Pd/C catalyst in ethanol. 8' and 1' gave both cis and trans isomers of tetrahydro compound [7' cis and trans (42:58) and 2' cis and trans (50:50) respectively]. As described in the previous report, isoxylitone [1-(3, 5, 5-trimethyl-2-cyclohexene-1-ylidene)-2-propa-none)] (1) was catalytically hydrogenated to give exclusively the cis-tetrahydro compound (2czs), whereas 10 gave the isomeric dihydro compounds [(3, 5, 5-trimethylcyclohexene-1-ylidene)-acetonitrile] (5) and the hydrogenation proceeded no further. The effect of gem-dimethyl group on the catalytic hydrogenation is discussed.
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  • Hiromu KAMEOKA, Chi-Pao WANG
    1980 Volume 54 Issue 2 Pages 111-115
    Published: 1980
    Released on J-STAGE: November 21, 2008
    JOURNAL FREE ACCESS
    The essential oils were obtained in 0.008% (A) and 0.003% (B) yield by steam-distillation from the flowers of T. excelsa W. (A) and T. fortunei W. (B), which were collected at Higashiosaka-shi in May, 1978. Each essential oil was separated into three parts; neutral part, sodium bicarbonate soluble part and sodium hydroxide soluble part.
    As a result of chromatographic and spectral analysis, the major components of the essential oil were found to be 1-penten-3-ol (A) and eugenol (B), and they contained terpene compounds, aliphatic aldehydes, aliphatic alcohols, aliphatic acetates, aromatic compounds, phenol compounds and aliphatic fatty acids. Some of these constituents were identified as α-pinene, camphene, α-muurolene, octanal, nonanal, hexanol, cis-3-hexen-1-ol, nonanol, nonyl acetate, β-phenylethyl alcohol, methyl eugenol, cresols, and miscellaneous, as shown in Table II.
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  • Shoji GOTO, Takashi TERABAYASHI, Isami YOKOTSUKA
    1980 Volume 54 Issue 2 Pages 117-121
    Published: 1980
    Released on J-STAGE: November 21, 2008
    JOURNAL FREE ACCESS
    Identification and relation between cultural properties and pathogenicity of grey mold isolated from grape at Yamanashi Prefecture were studied.
    All of the isolates (one hundred strains) were found to belong to Botrytis cinerea Persoon by morphological and cultural properties and pathogenicity.
    The isolates were divided into 5 types, SI-SV, by the presence and the mode of sclerotia formation on PDA medium (Fig. 1). Sixty % of the whole isolates belonged into the type S III and they formed large sclerotia annularely. The isolates were also classified into 5 types, C I-C V, by the difference of the mode and color of airial mycelium on PDA medium (Fig. 2). Pathogenicity of the isolated was measured by size of symptom on lettuce leaf. From the pathogenical viewpoint the isolates were divided into two types: type W which gave weak and small symptom and type L which gave large and strong symptom. Type L was 77% of the whole isolates.
    Fairly good correlation was found among the types of sclerotia, colony and pathogenicity. Most members belonging to the sclerotia type S I and S II had colony of the type C I or C II and most strains of this group showed pathogenicity of the type W. Most members belonging to the sclerotia type S III had colony of the type C III or C IV and most strains of this group were the type L. Strains of the groups S III-C III and S III-C IV were 67% of the whole type L and were 51% of the whole isolates.
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  • Shoji GOTO, Takashi TERABAYASHI, Isami YOKOTSUKA
    1980 Volume 54 Issue 2 Pages 123-124
    Published: 1980
    Released on J-STAGE: November 21, 2008
    JOURNAL FREE ACCESS
    Sensitivity distribution (SD) to pesticides of one hundred strains of Botrytis cinerea isolated from the grape at Yamanashi Prefecture was studied on the basis of minimal inhibitory concentration (MIC) and grouping values for the isolates into sensitive and resistant groups were determined.
    SD to Benomyl, Thiophanate-methyl and Captan showed the two-peak curves and all isolates were classified into the sensitive and resistant groups, respectively. SD to Polyoxin B, Triazin and Mannebdithene showed each normal distribution curves with wide ranges of MIC values. SD to Ronilan and Rovral showed normal distribution curves, and it was demonstrated clearly that all isolates were sensitive to the two pesticides.
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  • N. Y.
    1980 Volume 54 Issue 2 Pages 147
    Published: 1980
    Released on J-STAGE: November 21, 2008
    JOURNAL FREE ACCESS
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  • 1980 Volume 54 Issue 2 Pages 169
    Published: 1980
    Released on J-STAGE: November 21, 2008
    JOURNAL FREE ACCESS
    Download PDF (38K)
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