Pub Date : 1984-06-01DOI: 10.1270/JSBBS1951.34.147
T. Abe, Yuzo Futsufara
Tissue cultures were initiated from root sections excised from 5∼7 day-old seedling, in 60 varieties including various ecospecies i.e. japonica, indica, japonica-iridica hybrids, and large grain varieties (assumed to be javanica type) in rice (Oryza sativa L.) on basal Murashige and Skoog's (1962) medium containing 3.0 mg/l 2, 4-dichlorophenoxyacetic acid (2, 4-D), 2.O g/l of casein hydrolysate, and 30 g/l sucrose. Cultures were maintained on the same medium with 2.O mg/l 2, 4-D. Plant regeneration was accomplished by subculturing for 2 to 3 passages to the same basal medium with 0.02mg/l 2, 4-D and 10mg/l kinetin. Remarkable variability in plant regeneration was observed among varieties tested. All the cultures of the japonica varieties had good capacity for regeneration, while some of the cultures of indica, japonica-indica hybrids, and large grain varieties were poor. It was observed that 11 of 28 cultures in japonica, 2 of 16 in indica, and 1 of 10 in large grain varieties had relatively high potential for regeneration at more than 30%. Besides normal plant regeneration, cultures showed various responses such as massive rooting without shoot formation, retention of green pigmented region without further development, and occurence of necrotic dead tissue. Two distinct types of plant regeneration were observed, one of which was organogenesis, and other was somatic embryogenesis. Most of the cultures from the indica varieties, Chyokoto and Gaiya Dhan Tosar, initiated plantlet through somatic embryogenesis.
{"title":"Varietal Difference of Plant Regeneration from Root Callus Tissues in Rice","authors":"T. Abe, Yuzo Futsufara","doi":"10.1270/JSBBS1951.34.147","DOIUrl":"https://doi.org/10.1270/JSBBS1951.34.147","url":null,"abstract":"Tissue cultures were initiated from root sections excised from 5∼7 day-old seedling, in 60 varieties including various ecospecies i.e. japonica, indica, japonica-iridica hybrids, and large grain varieties (assumed to be javanica type) in rice (Oryza sativa L.) on basal Murashige and Skoog's (1962) medium containing 3.0 mg/l 2, 4-dichlorophenoxyacetic acid (2, 4-D), 2.O g/l of casein hydrolysate, and 30 g/l sucrose. Cultures were maintained on the same medium with 2.O mg/l 2, 4-D. Plant regeneration was accomplished by subculturing for 2 to 3 passages to the same basal medium with 0.02mg/l 2, 4-D and 10mg/l kinetin. Remarkable variability in plant regeneration was observed among varieties tested. All the cultures of the japonica varieties had good capacity for regeneration, while some of the cultures of indica, japonica-indica hybrids, and large grain varieties were poor. It was observed that 11 of 28 cultures in japonica, 2 of 16 in indica, and 1 of 10 in large grain varieties had relatively high potential for regeneration at more than 30%. Besides normal plant regeneration, cultures showed various responses such as massive rooting without shoot formation, retention of green pigmented region without further development, and occurence of necrotic dead tissue. Two distinct types of plant regeneration were observed, one of which was organogenesis, and other was somatic embryogenesis. Most of the cultures from the indica varieties, Chyokoto and Gaiya Dhan Tosar, initiated plantlet through somatic embryogenesis.","PeriodicalId":270267,"journal":{"name":"Japanese journal of breeding","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121119886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1983-09-01DOI: 10.1270/JSBBS1951.33.269
T. Yabuya
{"title":"Pollen storage of Iris ensata Thunb. in organic solvents and dry air under freezing","authors":"T. Yabuya","doi":"10.1270/JSBBS1951.33.269","DOIUrl":"https://doi.org/10.1270/JSBBS1951.33.269","url":null,"abstract":"","PeriodicalId":270267,"journal":{"name":"Japanese journal of breeding","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125865672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1983-09-01DOI: 10.1270/JSBBS1951.33.331
H. Namai
{"title":"Present Conditions of Seed Multication for Conservation of Crop Genetic Resources in Japan : III. Forage Crops, and Vegetables (1) Cruciferae","authors":"H. Namai","doi":"10.1270/JSBBS1951.33.331","DOIUrl":"https://doi.org/10.1270/JSBBS1951.33.331","url":null,"abstract":"","PeriodicalId":270267,"journal":{"name":"Japanese journal of breeding","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116613736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Higashi, N. Horisue, Shigeru Saito, Shinji Watanabe
{"title":"Genetic Analysrs of Freld Resistance to Panicle Blast (Pyricula ory-ze CAV.) in Rice","authors":"T. Higashi, N. Horisue, Shigeru Saito, Shinji Watanabe","doi":"10.1270/JSBBS1951.33.62","DOIUrl":"https://doi.org/10.1270/JSBBS1951.33.62","url":null,"abstract":"","PeriodicalId":270267,"journal":{"name":"Japanese journal of breeding","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130672718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1982-12-01DOI: 10.1270/JSBBS1951.32.317
Toshio Matsuda, Michiko Sato
Inheritance of the number of ground suckers in tobacco (N. tabacum L.) was investigated by analysis of F1, F2 and F3 plants of two varietal crosses, MC × Virginia 115 and Matsukawa × Odrauma, following MATHER'S additive-dominance genetic model. Dominance genetic variance was larger than additive genetic variance in the cross between MC and Virginia 115, while additive variance was larger than dominance one in the cross between Matsukawa and Odaruma. Since narrow-sense heritability values for F3 Iine mean were 66.47 and 93.49% respectively, selection for this character is expected to be effective in F3 and F4 generations. The number of ground suckers is estimated tb be controlled by three effective genetic factors for the cross bewteen MC and Virginia 115, and by six for the cross between Matsukawa and Odaruma.
采用MATHER加性-显性遗传模型，对MC × Virginia 115和松川× Odrauma两个品种组合的F1、F2和F3植株进行遗传分析。MC与弗吉尼亚115杂交的显性遗传方差大于加性遗传方差，松川与小田间杂交的加性遗传方差大于显性遗传方差。由于F3系的狭义遗传力平均值分别为66.47和93.49%，因此该性状在F3代和F4代的选择是有效的。据估计，MC与弗吉尼亚115杂交的地上吸盘数量受3个有效遗传因子的控制，松川与小田间杂交的地上吸盘数量受6个有效遗传因子的控制。
{"title":"Studies on the Breeding of Varieties Having Low Sucker Productivity in Tobacco (Nicotiana tabacum L.) : III. Inheritance of Sucker Productivity in Two Varietal Crosses","authors":"Toshio Matsuda, Michiko Sato","doi":"10.1270/JSBBS1951.32.317","DOIUrl":"https://doi.org/10.1270/JSBBS1951.32.317","url":null,"abstract":"Inheritance of the number of ground suckers in tobacco (N. tabacum L.) was investigated by analysis of F1, F2 and F3 plants of two varietal crosses, MC × Virginia 115 and Matsukawa × Odrauma, following MATHER'S additive-dominance genetic model. Dominance genetic variance was larger than additive genetic variance in the cross between MC and Virginia 115, while additive variance was larger than dominance one in the cross between Matsukawa and Odaruma. Since narrow-sense heritability values for F3 Iine mean were 66.47 and 93.49% respectively, selection for this character is expected to be effective in F3 and F4 generations. The number of ground suckers is estimated tb be controlled by three effective genetic factors for the cross bewteen MC and Virginia 115, and by six for the cross between Matsukawa and Odaruma.","PeriodicalId":270267,"journal":{"name":"Japanese journal of breeding","volume":"20 Suppl 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124213808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1982-12-01DOI: 10.1270/JSBBS1951.32.353
K. Takeda
In the previous reports, the author has clarified that unbalanced growth in the floral glumes and caryopsis of rice results in such aberrant grains as notched or hull-cracked grains. Because the grain size of a rice plant is generally conditioned by many minor genes, it should be treated as a quantitatively inherited character. However, if the major genes controlling grain size are available, analysis of their action may offer more simple and precise understanding about the genetic mechanism of grain development. In the present experiment, the effects of minute grain genes on the length of floral glumes and the potential length of caryospsis have been investigated with the nine F2 populations (Table 1). The potential length of the caryopsis (T1) was estimated by the length of "glume-cllpped grains", upper parts of the floral glumes were clipped-off a few days after the anthesis to allow the development of caryopsis without restriction by the size of floral glumes, while the inner length of floral glumes (C1) was indicated by the length of "non-treated gralns" which naturally developed in a state encased in the floral glumes. Without exception, T1 was longer than C1, and the T1/C1 ratio varied from ca. 1.O to larger than 1.7 in the 1, 483 F2 plants examined.
{"title":"Notched Grains Developed by the Minute Genes of Rice / Unbalanced Growth in Floral Glumes and Caryopsis in Rice VI.","authors":"K. Takeda","doi":"10.1270/JSBBS1951.32.353","DOIUrl":"https://doi.org/10.1270/JSBBS1951.32.353","url":null,"abstract":"In the previous reports, the author has clarified that unbalanced growth in the floral glumes and caryopsis of rice results in such aberrant grains as notched or hull-cracked grains. Because the grain size of a rice plant is generally conditioned by many minor genes, it should be treated as a quantitatively inherited character. However, if the major genes controlling grain size are available, analysis of their action may offer more simple and precise understanding about the genetic mechanism of grain development. In the present experiment, the effects of minute grain genes on the length of floral glumes and the potential length of caryospsis have been investigated with the nine F2 populations (Table 1). The potential length of the caryopsis (T1) was estimated by the length of \"glume-cllpped grains\", upper parts of the floral glumes were clipped-off a few days after the anthesis to allow the development of caryopsis without restriction by the size of floral glumes, while the inner length of floral glumes (C1) was indicated by the length of \"non-treated gralns\" which naturally developed in a state encased in the floral glumes. Without exception, T1 was longer than C1, and the T1/C1 ratio varied from ca. 1.O to larger than 1.7 in the 1, 483 F2 plants examined.","PeriodicalId":270267,"journal":{"name":"Japanese journal of breeding","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134151331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1982-09-01DOI: 10.1270/JSBBS1951.32.232
Shigetoshi Sato, K. Muraoka, Y. San
The relationships between known three linkage groups, the sixth, the ninth, and the twelfth, and chromosomes in rice (Oryza sativa L.)were reexamined by using isogenic lines of Taichung 65 with marker genes and translocation stocks. The marker genes, ghl (gold hull) and d1 (daikoku-type dwarf) included in the sixth linkage group, nl1 (neck leaf) in the ninth, and gl1 (glabrous) in the twelfth group were all found to be located on the second chromosome. Linkabae order of these marker genes and seven interchange breakpoints on this chromosome was established as gh1-d1-2-3-2-3c-nl1-2-6a-2-7a-2-3b-2-lOa-2-3d-gl1 Consequently, two more linkabae groups remain to be established.
{"title":"Reconstruction of a Linkage Group Corresponding to the NISHIMURA'S Second Chromosome in Rice, Oryza sativa L.","authors":"Shigetoshi Sato, K. Muraoka, Y. San","doi":"10.1270/JSBBS1951.32.232","DOIUrl":"https://doi.org/10.1270/JSBBS1951.32.232","url":null,"abstract":"The relationships between known three linkage groups, the sixth, the ninth, and the twelfth, and chromosomes in rice (Oryza sativa L.)were reexamined by using isogenic lines of Taichung 65 with marker genes and translocation stocks. The marker genes, ghl (gold hull) and d1 (daikoku-type dwarf) included in the sixth linkage group, nl1 (neck leaf) in the ninth, and gl1 (glabrous) in the twelfth group were all found to be located on the second chromosome. Linkabae order of these marker genes and seven interchange breakpoints on this chromosome was established as gh1-d1-2-3-2-3c-nl1-2-6a-2-7a-2-3b-2-lOa-2-3d-gl1 Consequently, two more linkabae groups remain to be established.","PeriodicalId":270267,"journal":{"name":"Japanese journal of breeding","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121226993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1982-06-01DOI: 10.1270/JSBBS1951.32.123
N. Matsuta, M. Omura, T. Akihama
The dry pollen surface of Japanese pear cultivars was investigated using the scanning electron microscope (SEM). Ridges, perlorations and nanoprocesses were observed on the exine, and the micromorphological pattern combined with these characteristics appeared to vary with the cultivars. Four cultivars, Imamuraaki, Suisei, Kikusui and Choju which apparently differed from each other with regard to the micromorphology of pollen surace, were chosen for estimating the morphological differences quantitatively. Twelve characteristics could be selected and measured on 50 pollen grains in each cultivar, based on microphotographs. Discriminant analysis was carried out using these 12 characteristics. Of the total of 200 pollen grains examined, about 76 percent could be correctly assigned to each cultivar. It is thus suggested that the micromorphology of pollen surface is available for distinguishing and identifying Japanese pear cultivars.
{"title":"Difference in Micromorphological Pattern on Pollen Surface of Japanese Pear Cultivars","authors":"N. Matsuta, M. Omura, T. Akihama","doi":"10.1270/JSBBS1951.32.123","DOIUrl":"https://doi.org/10.1270/JSBBS1951.32.123","url":null,"abstract":"The dry pollen surface of Japanese pear cultivars was investigated using the scanning electron microscope (SEM). Ridges, perlorations and nanoprocesses were observed on the exine, and the micromorphological pattern combined with these characteristics appeared to vary with the cultivars. Four cultivars, Imamuraaki, Suisei, Kikusui and Choju which apparently differed from each other with regard to the micromorphology of pollen surace, were chosen for estimating the morphological differences quantitatively. Twelve characteristics could be selected and measured on 50 pollen grains in each cultivar, based on microphotographs. Discriminant analysis was carried out using these 12 characteristics. Of the total of 200 pollen grains examined, about 76 percent could be correctly assigned to each cultivar. It is thus suggested that the micromorphology of pollen surface is available for distinguishing and identifying Japanese pear cultivars.","PeriodicalId":270267,"journal":{"name":"Japanese journal of breeding","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125281348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1982-06-01DOI: 10.1270/JSBBS1951.32.171
T. Takita
The effect of natural day length on heading time in Japanese rice (O. sativa L.) cultivars has not yet completely been made clear, because of the difficulty in eliminating the effect of temperature. Five cultivars were grown under two constant day lengths of 20 and 50 minutes shorter than the day length at the summer solstice, 15 hours and 5 minutes. These day length corresponded to those of July 20 th. and August 10 th. respectively. Growth duration from seeding to heading in those day length was shorter than that in the day length at around the summer solstice.
{"title":"Change of Heading Time by Transfer of Seeding Time in Japanese Paddy Rice Cultivars : I. Influence of Natural Day Length","authors":"T. Takita","doi":"10.1270/JSBBS1951.32.171","DOIUrl":"https://doi.org/10.1270/JSBBS1951.32.171","url":null,"abstract":"The effect of natural day length on heading time in Japanese rice (O. sativa L.) cultivars has not yet completely been made clear, because of the difficulty in eliminating the effect of temperature. Five cultivars were grown under two constant day lengths of 20 and 50 minutes shorter than the day length at the summer solstice, 15 hours and 5 minutes. These day length corresponded to those of July 20 th. and August 10 th. respectively. Growth duration from seeding to heading in those day length was shorter than that in the day length at around the summer solstice.","PeriodicalId":270267,"journal":{"name":"Japanese journal of breeding","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129041197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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