巻号一覧
後続誌
2 巻 (1952 - 1953)
- 4 号 p. 185-
- 3 号 p. 121-
- 2 号 p. 65-
- 1 号 p. 1-
2 巻, 1 号
選択された号の論文の12件中1～12を表示しています
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篠原 捨喜1952 年 2 巻 1 号 p. 1-6
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリー1.In the methods of commercial seed productionof cabbage in Japan, there is a method which harvestsseed from premature seed mother plants by meansof summer-sowing culture.By this method, if thesowing too late and the growth is checked, itcauses frequently irregular bolting(Fig.1), so thatseeds may be degenerated. It is serious matter inseed production especially in fall-sowing varieties.This study was performed in order to make clearthe above point.2.The experiments were done at the ShizuokaAgricultural Experiment Station during the period of1948-51, and the tested variety was the Fuji-wasecabbage, a leading variety of fall-sowing early varieties in Japan.抄録全体を表示PDF形式でダウンロード (1722K) -
生沼 巴1952 年 2 巻 1 号 p. 7-13
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリー1)青刈大豆の一品種茶百石をもちいて，人為四倍体を新たに育生し，これと二倍体との間に形質の相違を比較した。2)二倍体茶千石の染色体数は2n=40で，その同質四倍体は2n=80である。また二倍体においてはdisomaticの細胞がしばしば見られた(Fig.1a.1b.2)。3)四倍体は二倍体に比して，気孔の大きさ，葉面における毛茸の長さ，花粉粒の大きさ，複葉面積の広さ，種子の大きさ及び種子の重量の諸〓で、いずれも形質の増大を来し(Figs.3.4.5.6.，Tables 1.2.3.4.5)，生育期間も長くなる(Table 5)。又根部の伸張や根瘤組織の発達も四倍体において著しい(FIg.7，Table6)。抄録全体を表示PDF形式でダウンロード (1338K) -
橋岡 良夫1952 年 2 巻 1 号 p. 14-16
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリーBROWN SPOT In order to clarify the general tendencv of the varietal resistance of rice to the brown spot(Cochliobolus"miyabeanus(ITO et KUPIB.)DRECH sL.), 283 varieties native to the diffrent latitudinal regions in Asia were employed for the inoculatiorn tests. The seedling were grown under the meage nutritional condition so as to make them susceptible to the diseage.When the seedling attaind the 3-4 leaf-stage, they were inoculated simultaneously with conidial suspension, then all the varieties were classified into six grades of infection, i.e., highly resistant, resistant, moderately resistant, moderately susceptible, and highly susceptible. So far as the precent experiment was concerned, in general, the variety-groups belonging to the so-called'Japonica'type, i.e.,抄録全体を表示PDF形式でダウンロード (644K) -
永松 土己, 橘高 昭雄1952 年 2 巻 1 号 p. 17-19
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリー(1)明治以降我国暖地の首位品種となった神力，旭，農林18号の各1系統を九大附属農場で同一条件で栽培して稈長，穂長，穂数，全重，精籾千粒重の収量に関係した可測的形質を調査して之等形質の変化の推移を検討し，水稲育種の目標を求めようとした。(2)稈長は出現年次の新しい品種ほど短く，穂長は旭では短くなったが農林18号は長くなり，新しい草型となっていることを明らかにした。穂数，全重，穂重は著しい増加の傾向を示し晩神力に対して旭は2割弱，農林18号は5割前後増大した。籾は旭，農林18号とも5%強大きくなっている。抄録全体を表示PDF形式でダウンロード (667K) -
斎藤 清1952 年 2 巻 1 号 p. 20-24
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリー(1)1948-51年に作成された同質4倍体28種，8倍体3種及び3倍体6種について花器・茎葉・草性・早晩性・稔實力・耐寒性などの実用的諸形質に関する優劣の一般的傾向を明らかにして将来の利用性の有無を判定した。(2)多くの倍数体は花器・種子・葉および茎部の形態的増大を現わすが稔實力が著しく劣り開花期が遅延して花茎数も少なく，種類によって明らかに矮性化するのもある。抄録全体を表示PDF形式でダウンロード (1209K) -
香山 俊秋1952 年 2 巻 1 号 p. 25-30
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリーSince 1943, it has been intended to breed the resistant varieties to rice-blast by hybridization between one of the foreign varieties in Japanese-type which offered resistance to a high degree and some of the Japanese varieties in rice.As the result, it was succeeded to obtained these varieties, "Kanto-No.51", "Kanto-No.52", "Kanto-No.53", "Kanto-No.54"and"Kanto-No.55", all of which have higher resistance to rice-blast compared with any variety of rice in Japan.抄録全体を表示PDF形式でダウンロード (1557K) -
中島 吾一1952 年 2 巻 1 号 p. 31-36
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリー1.In this investigation the number and constitution of chromosome in viable female gametes of(Triticum-Secale triple F1 hybrids, raised from Triticum turgidum(n=14)x Secale cereale(n=7)F1)x Triticum vulgare(n=21), were examined by backcrossing with the pollen of S.cereale.抄録全体を表示PDF形式でダウンロード (1204K) -
西村 周一, 勝又 廣太郎1952 年 2 巻 1 号 p. 37-41
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリーStudies were carried out on the process of flowering.on the crossing technique, and on the set percentagein artificial crossing, for tne research of peanut breeding. The pollens began to flow out at about 9 p.m. and completely flowed out until 2 to 3 a.m. onthe next day. Under natual conditions, 30 to 40%flowers had been pollinated by 3.a.m. and mostpistils were feritilized at about 10 a.m. The pollinized flowers withered in the same afternoon. Crossingoperation was facilitated by using the raised. whichwere about one foot high from the level and borderedby wooden frames. Both parents were arranged systematically on the beds. In this case one operator waspossible to emasculate 36.3 flowers per hour or topollinize 88.8 flowers per hour.抄録全体を表示PDF形式でダウンロード (984K) -
桑田 晃1952 年 2 巻 1 号 p. 42-46
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリーIn the previous report(1950.'51)it was provedthat the germination of seeds of escuJentus, Manihot and Nori-Asa stored dry rstate was very poor, and it was due mainly to the difflculty in absorbingwater owing to the dehydration of the pallisade cellsincluding the light line. In the present report thenature of the cause of such difficulty was studied抄録全体を表示PDF形式でダウンロード (934K) -
長尾 正人, 高橋 万右衛門1952 年 2 巻 1 号 p. 47-50
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリーYAMAUCHI has made a cross beween vareties "Karasu-Mochi" which was blackish violet in glume color and " Shinriki" with colorless or green glume F1 plants had blackish violet glume, somewhat paler than " Karasu-Moch ", and gave in F2 the flowing five phenotypes as to the glume color, namely, 1 ) blackish volet, 2) blackish violet at apiculus, 3) reddsh brown, 4) reddish brown at aicuslus and 5) coloress, in the ratio of 27 : 9 : 9 : 3 : 16 respectively. Based on this result he assumed three genes. B. R, and S concerning the glume colors. According to him, S : a gene responsible for the development of reddish brown pigment at apictilus.抄録全体を表示PDF形式でダウンロード (743K) -
有賀 久雄, 長島 榮一1952 年 2 巻 1 号 p. 51-54
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリーStudies on the mechanisms of the formation ofsome larval markings making use of several mutantsand their crossed types of the silkworm have beencarried out. We can not understand the formation ofseveral larval markings of the silkworm by thinkingof respective genes only which have been named bygeneticist, but we must think of some another genesand some factors. For the first time, we ought tothink of the differentiation of the cells in the earlvstage of the embryonal development for the complexpatterns of some larval markings, and more over theactions of the genes which control the differentiationof some special anlages of epidermis in addition tothe respective genes. Each genes of marking as formation are classified in two categories:(1)each genesform only respective melanin pigments, (2)eachgenes form melanin pigments and also the specialanlages in the epidermis.抄録全体を表示PDF形式でダウンロード (1072K) -
和田 榮太郎1952 年 2 巻 1 号 p. 55-62
発行日: 1952/10/20
公開日: 2008/05/16
ジャーナル フリー(1)In 1938, at KONOSU Exp.Station, 134 recommended varieties of low-land rice in Japan weregrown in natural, short day length (8 hours), hightemperature (glass house) and high temp.-short dayconditiorls.By the response of heading time of rice plant under these 4 treatments, examinated varieties weredivided in 2 groups, the former group is high sensitive to temperature and low sensitivity for davlength and the latter group shows high sensitivity forday-length and low sensitivity for temparature. Thefirst group contains almost early varieties and the2nd group are consisted with the later varieties抄録全体を表示PDF形式でダウンロード (1363K)
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