Japanese Journal of Breeding
Online ISSN : 2185-291X
Print ISSN : 0536-3683
ISSN-L : 0536-3683
Volume 29, Issue 4
Displaying 1-9 of 9 articles from this issue
  • Toshiaki YAMADA, Osamu HORlNO, SAMOTO, Shiro
    1979 Volume 29 Issue 4 Pages 279-286
    Published: December 01, 1979
    Released on J-STAGE: May 16, 2008
    JOURNAL FREE ACCESS
    The genes of IR 28 responsible for resistance to the five bacterial groups I, II, III, IV and V of Xanthomonas oryzae (Uyeda et Ishiyama) Dowson from Japan were analyzed. The resistant variety IR 28, the susceptible variety Toyonishiki and their cross hybrids F1 and F2 plants were tested for resistance to each of the representative isolates of the five bacterial groups; T 7174 for group I, T7147 for group II, T 7133 for group III, H 75373, for group IV and H75304 for group V. Adult plants grown in the experimental paddy field were inoculated by double needle prick method. Three weeks later, the inoculated plants were scored for disease-index number according to the standard proposed by EZUKA and HORINO (1974). With the disease-index number to bacterial groups I and V, F1 means were both very close to IR 28, which showed O.3 for group I and O.1 for group V. For each of the two groups. F2 Segregation in the disease-index number exhibited a wide range from O.O to 7.O, but formed a clear-cut bimodal distribution: one mode with a predorninant number-of plants corresponded to IR 28 and the other with much less plants crresponded to, Toyonishiki, which showed lower disease-index number to group V than to group I most likely because of the relatively weak aggressiveness of the isolate used as group V. The analysis of segregations revealed that one major gene controlled the resistance of IR 28 to bacterial group I and another major gene to bacterial group V, and that the two. genes linked very closely with a recombination value of about 4%.
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  • S. V. S. CHAUHAN, Toshiro KINOSHITA
    1979 Volume 29 Issue 4 Pages 287-293
    Published: December 01, 1979
    Released on J-STAGE: May 16, 2008
    JOURNAL FREE ACCESS
    The evaluation of histochemical localization of histones. DNA and total protein in the anthers of male-fertile as well as cytoplasmic, genic and chemically indLlced male-sterile plants of Allium cepa, Beta vulgaris, Capsiculee annuum, Cucumis leeelo, Cucur-bita maxima, Datura alba. Ranunculus muricatus, Sesamum indiculee, Solarnum melon-gena and Triticum aestivum revealed that the anthers of male-sterile plants were markedly deficient in these substances. It is concluded from these observations that this deflciency, acting as a limiting factor for pollen development in all probability, was caused by the inhibition of vascular supply in sterile anthers.
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  • Norio Hosoi
    1979 Volume 29 Issue 4 Pages 294-304
    Published: December 01, 1979
    Released on J-STAGE: May 16, 2008
    JOURNAL FREE ACCESS
    To evaluate what physiological factors are responsible for the year-to-year fluctuations of heading time in field, heading response to temperature under natural daylerigth (Y) and the three factors controlling heading time i. e. thermo-sensitivity (X1)' photo-sensiti-vity (X2), and basic vegetative growth (X3) were investigated for 44 paddy rice varieties. The former was determined by growing plants in growth cabinets, the air of which was kept at a lower or higher temperature .by a given degree than the open air. Item Y was expressed by the delay. in heading time caused by a temperature difference of 1.5°C at very high (+3.5∼+1.5), high (+1.5∼±0), Iow (±0∼1.5) and very low (-1.5∼-3.O) temjerature range. The latter three factors wereobtained by grdwing plants under daylength (10h, 14h) and constant temperatures (20°C, 30°C). X1, X2 and X3 were expressed by nSL-nSH, nSL-nLL, and nSH, respectively, where nSL, for instance, stands for the number of days frorn sowing to heading under the condition of short photoperiod (10h) and low temperature (20°C). Multiple correlation between Y and a set of Xl, X2 and X3, and partial regression. of Y on the three variabies we.re calculated.
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  • Kokichi HINATA, Noboru KONNO
    1979 Volume 29 Issue 4 Pages 305-311
    Published: December 01, 1979
    Released on J-STAGE: May 16, 2008
    JOURNAL FREE ACCESS
    1. D. muralis was used as a female parent in crosses with B. campestris (a commercial cultivar, Yukina). Successive backcrossing by the pollen of the latter species raised a male sterile strain having Yukina nucleus and D. muralis cytoplasm. 2. Morphological characters 0L this strain were quite alike to cv. Yukina, except flower organs; such as two nectaries, narrow petals and short filaments with stunted anthers in which was observed a small quantity of pollen. Pistils were normal in mor-phology as well as in function. 3. Two types 0L male sterility were recognized in the strain; one was completely male sterile (MS) without anther dehiscence and the other was partially male sterile (PMS), with a little emission of pollen. In order to obtain a family whose plants are all MS, maintainers were made by two methods, from a selfed progeny of the cultivar and from a cross Yukina><PMS. Completely male sterile families could be established by both the methods.
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  • Takane MATSO, Tomoo INNAMI
    1979 Volume 29 Issue 4 Pages 312-317
    Published: December 01, 1979
    Released on J-STAGE: May 16, 2008
    JOURNAL FREE ACCESS
    Stabilities of three rice varieties were tested under the 10 different environments, consisted of 5 Ievels of temperature and 2 Ievels of N-fertilizer. Those varieties tested have shown different degrees of adaptability in the International Rice Adaptation Experiments, of IBP and the subsequent studies. The order of varieties on the degree of yield stability, estimated by the values of the, variance ratio among total environments, were paralleled with that of general adaptability evaluated by some methods in case A of the IRAE. The order of varieties on specific stability for N-fertilizer also agreed with that of general adaptability. However, the order on specific stability for ternperature were different.
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  • Yutaka HIRATA
    1979 Volume 29 Issue 4 Pages 318-323
    Published: December 01, 1979
    Released on J-STAGE: May 16, 2008
    JOURNAL FREE ACCESS
    In order to make it clear whether graft-induced changes could be identified, two eggplant cultivars, Shinkuronasu and Shironasu, were grafted in reciprocal combinations. The seedling and fruit graftings were performed, applying the so-called "Mentor method". The changes in hypocotyl color observed both in the grafted scions and in the progenies, derived from them, were either from DD(dark purple, Shinkuronasu type) or from dd (green, Shironasu type) to Dd(purple) in many cases. In addition, the unexpedted changes from dd to DD and Dd in G1S1SH/SK(S)-7 and from DD to dd in G2S2SK/SH(S)-4-22 were also found. The ratio of the changes in hypocotyl color was 1.44% (93/6469) in total, which was very high. Furthermore, non-Mendelian segregation ratios for the hypocotyl color were found in the progenies from the grafted scions. The phenomena observed in the present experiment were similar to those of transforma-tion in higher plants such as Petunia and Arabidopsis.
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  • [in Japanese]
    1979 Volume 29 Issue 4 Pages 324-328
    Published: December 01, 1979
    Released on J-STAGE: May 16, 2008
    JOURNAL FREE ACCESS
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  • [in Japanese]
    1979 Volume 29 Issue 4 Pages 328-340
    Published: December 01, 1979
    Released on J-STAGE: May 16, 2008
    JOURNAL FREE ACCESS
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  • [in Japanese]
    1979 Volume 29 Issue 4 Pages 340-341
    Published: December 01, 1979
    Released on J-STAGE: May 16, 2008
    JOURNAL FREE ACCESS
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