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Registros recuperados: 19
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Effect of X-rays on Agronomic Characters in Rice (Mutations in Rice Induced by X-rays II) Taiwan Agricultural Research Institute
Sung-Ching Hsieh; 謝順景.
[[abstract]]The present paper describes the effect of X-rays on the agronomic characters which are generally regarded as controlled by the so-called polygenes. The seedling growth was supressed differently by the different dosages of X-rays in X1 generation, while average of plant height, tiller and ear numbers, length and weight of ears were not much different from the control, though the range of variability was increased. 臺中65號稱萌芽種子已如第一報所示方法以5,000r,7,000r,8,000r及10,000r四種X線量處理後與對照同播於玻璃室內,35天後移栽於田間。本試驗對於插秧前之苗高及收穫前後之株高,分蘗數,穗數,穗長,穗重等量性狀加以調查,觀察不同X線量對處理第一代各農藝性狀之影響,所得初步結果如下: 不同X線量對於苗高有抑制之影響,其程度概因X線量強者為甚。佐伯式(1936)曾報告說,少量的X線可促進,大量則可抑制稻之生長。在目前試驗結果表示,除7,000r處理區有稍提高平均苗高外,其他處理區均有抑制之現象,但此現象至收穫,前漸不顯明。X線量對穗長或穗數,穗重等性狀,並無良好影響,因此由X線處理而欲獲得產量高的系統似乎較為困難。...
Palavras-chave: [[classification]]6.
Ano: 1959
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GENIC ANALYSIS IN RICE II. Inheritance of Resistance of Rice Seedlings to Blast Disease, Piricularia Oryzae Taiwan Agricultural Research Institute
S.C. Hsieh; C.C. Chien; S.C. Hwang; 謝順景; 簡錦忠; 黃盛蛟.
[[abstract]]Six resistant, six intermediate and seven susceptible varieties of rice from Taiwan, Japan and the U. S. A. were intercrossd, and were planted in a glass-house where humidity and temperature were controlled. Artificial inoculation of blast pathogen on the seedlings of rice was made and the infected leaves were exammined with regard to the type of disease lesions. It was found that crosses between resistant and susceptible strains, in F2, segrega-ted into 3 resistant and 1 susceptible plants in majority of crosses, showing resistance to be controlled by a single dominant gene. In F2s of some other crosses showed a 9:7 and 9:3:4 ratios indicating at least two genes are concerned with regard to blast resistance. The physiological races of...
Palavras-chave: [[classification]]6.
Ano: 1961
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Isolation of Reciprocal Translocation Lines in Rice Mutations in rice induced by X-rays III Taiwan Agricultural Research Institute
Sung-Ching Hsieh; Tien-Ding Chang; Hsin-Chong Young; 謝順景; 張天定; 楊行昌.
[[abstract]]The semi-sterile plants induced by X-ray irradiation were studied cytogenetically. It was found that, semi-sterile plants gave 1 fertile and 1 semi-sterile segregation ratio; fertile ones bred true, while the semi-sterile ones continue to segregate as above mentioned manner. When the former was back crossed to original variety, it produced either all sterile or all fertile plants, and segregation of fertile and sterile plants was never seen whthin the same cross. Such a behaviour of inheritance of fertility was concluded as attributable to chromosomal interchanges caused by X-ray irradiation. Frequency of ring, chain and other types of quardrivalents which were varied 0-100% were found to be significantly correlated with percentage of seed...
Palavras-chave: [[classification]]6.
Ano: 1959
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MUTATIONS IN RICE INDUCED BY X-RAYS (A PRELIMINARY REPORT) Taiwan Agricultural Research Institute
Tien-Ding Chang; Sung-Ching Hsieh; 張天定; 謝順景.
[[abstract]]The early studies of X-ray treatment in rice were mostly aimed to induce genic changes, while structural changes of the chromosomes were ‘rarely reported, though Ramiah and Parthasarathy (1935) found chromosome ring in X-rayed rice. Since Yamashita (1949) advocated that reciprocal translocations induced by X-rays were usable for linkage analysis, Nishimura (1950), Oka (1953) and Chang (1955) began to study this problem and some reciprocal translocation stocks were obtained. For the purpose of isolating reciprocal translocation lines for linkage group analysis, writers initiated an experiment to treat rice with X-rays in 1947 and again in 1954 and have obtained mutants such as semi-sterile rice, dwarf plants, chlorophyll deficiencies and others....
Palavras-chave: [[classification]]6.
Ano: 1957
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SEROLOGICAL STUDIES ON GENOTYPIC RELATIONSHIP AMONG RICE VARIETIES Taiwan Agricultural Research Institute
Sung-Ching Hsieh; 謝順景.
[[abstract]]Three rice cultivars, Taichung (n) 1 (indica type) and Taichung 65 and Nakamura (japonica types), were used to immunize rabbits to obtain antisera. Another 37 rice cultivars from various countries were used as antigen surces for studies of antigen-antibody reactions between the two groups of cultivars. When the antisera incited by immunization with seed protein of japonica type cultivars were titred with antigens from known japonica type cultivars, a positive precipitation reaction occurred, but no reaction was obtained with antigens from indica type cultivars. In a few cases antigens from a cultivar reacted with both indica and japonica type antisera. The antigens from these intermediate types may have had reating sites for both types of...
Palavras-chave: [[classification]]6.
Ano: 1970
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一突變矮稻之顏色性狀及其他性狀之遺傳稻之遺傳因子分析第十報 Taiwan Agricultural Research Institute
嚴盛添; 謝順景; S.T.Yen; S.C.Hsieh.
[[abstract]]D-155-8是臺中155號放射線誘變而得之突變矮稻,稃尖無色、葉細、深綠色、有葉舌、矮(高約 70cm)。謝(1962)將此矮性因子訂為d9,Chang和Jodon(1963)統一改定為d31。在D-155-8×T201等7組合之分析中,得知此D-155-8親本稃尖和柱頭顏色之因子為CBPa P Ps1 Ps2 I-Ps1。同時得知,柱頭著色為稃尖著色因子之下位,此點和Nagao及Takahashi等之報告相同。同時柱頭色之分離,較稃尖色複什。除與前人報告相同者外,並發現一新的分離現象(13有色:3無色)。 至於矮性因子(d31)、細葉(nal)、石炭酸反應因子(Ph)、無葉舌因子(lg)、密穗因子(Dn)、向地性(la)、莖葉脆性(bc)、等性狀本研究中發現均受一對遺傳因子所支配。而另在連鎖研究中發現,矮性因子(d31)、紫穎色因子(Pr)、紫色柱頭因子(PS2)、石炭酸反應因子(Ph)及無葉舌因子(lg)與細葉因子(nal)間等均有明顯的連鎖關係。且這些因子均屬於Nagao之第二染色體連鎖羣。但細葉因子(nal)卻和稃尖因子(C)、矮性因子(7245-d)、密穗因子(Dn)、莖葉脆性(bc)及向地性因子(lg)等因子相互獨立。 D-155-8, an X-ray induced dwarf mutant from Taichung no. 155, is measured about 70 cm in height at maturity, and the leaves being narrow and dark green in color. This strain was crossed with three gene markers of rice and five...
Palavras-chave: [[classification]]6.
Ano: 1968
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四元體稻的染色體行動之研究(豫報) Taiwan Agricultural Research Institute
謝順景.
Palavras-chave: [[classification]]6.
Ano: 1952
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抗葉及穗頸稻熱病遺傳之再研究-稻之遺傳因子分析之第六報 Taiwan Agricultural Research Institute
張德梅; 謝順景; T.M. Chang; S.C. Hsieh.
[[abstract]]利用蓬萊、在來及突變稻等 44 品種為親本作雜交,獲 32 個雜交組台,將其 Fl F2 及其双親,同時種植於毫中縣東勢,在自然環境下任其發病。葉稻熱病之發生程度,根據葉病斑面積率,然後換算為罹病指數,穗頸稻熱病之發生程度以罹病百分率表示之。 部分材料在臺北本所玻璃室內用噴撒法將胞子接種於幼苗上,並調查其病斑,另一試驗採用葉鞘接種法接種,並在顯微鏡下觀察細胞內之菌絲伸長度,以定感病之程度。 試驗結果,抗病 × 抗病之 Fl 及 F2 均為抗病,抗病 × 感病或感病 × 抗病之 Fl 為抗病,表示抗病性為顯性,在 F2 抗病及感病,則分離為 3 : 1 或 9 : 7 ,表示抗病性至少受二對之遺傳因子所支配。穗頸稻熱病之抵抗性在 F2抗病與感病之分離比有 3 : 1,9 : 7,27 : 37等三種,表示穗頸稻熱病之遺傳因子至少有三對。筆者等認為第 1 及第 2 抗病遣傳因子Pi1 Pi2 支配葉稻熱病,而另外加上第 3 因子Pi3支配穗頸稻熱病之抗性。求葉稻熱病與穗頸稻熱病抵抗性之相關結果,在本研究之範圍內大部分之情形下兩者之間有正相關關係。在自然發病狀態下抗病因子Pi與無葉舌因子lg有連鎖關係,但在玻璃室人工接種之狀態下則無此種連鎖關係發現,不同生理小種及不同環境,可能為其結果不同之原因。本研究中Pi與花青素著色因子 C 及 A 光穎因子 Ih ,芒因子 An糯性因子wx,穗枝彎曲因子Ur之間無連鎖關係發現。 F2 plants of 32 crosses together with their parents were planted in the field under the condition of natural infestion at Tunshu, Taichung...
Palavras-chave: [[classification]]6.
Ano: 1965
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水稻染色體相互轉座同型體農藝性狀之安定性水稻經 X 線處理後所發生的突然變異之第六報 Taiwan Agricultural Research Institute
謝順景; 張文財; 張德梅; S.C. Hsieh; W.T. Chang; T.M. Chamg.
[[abstract]]1.染色體相互轉座同型體108(白殼)10系統521(吉神)7系統及504(臺中65號)10系統會作田間試驗,各種數量性狀如抽穗期株,高、分葉數、穗數、產量之調查結果會作統計分析。試驗結果認為染色體相互轉座同型體間之各農藝性狀甚為均勻(Homogeneous) ,認為此等系統,除染色體發生變化而外其遺傳型(genotype)相同,因此認為可用相互轉座系統決定各數量遺傳因子(Polygenes)在染色體上之位置。 The RT homozygotes, 10 lines of 108 (Pei-ko), 7 lines of 521 (Kissin) and 10 lines of 504 (Taichung No. 65) were tested in a randomized blocks experiment. Various agr-onomic characters which are controlled by polygenes were measured and variance analysis was made. It was found that the translocation lines are generally homogeneous in agronomic characters, and may be regarded as having the same genotype except for translocation. It was assumed that the translocation method may be used to some extent for locating polygenes on chromosomes.
Palavras-chave: [[classification]]6.
Ano: 1961
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水稻染色體相互轉座同型體農藝性狀之安定性水稻經 X 線處理後所發生的突然變異之第六報 Taiwan Agricultural Research Institute
謝順景; 張文財; 張德梅; S.C. Hsieh; W.T. Chang; T.M. Chamg.
[[abstract]]染色體相互轉座同型體108(白殼)10系統521(吉神)7系統及504(臺中65號)10系統會作田間試驗,各種數量性狀如抽穗期株,高、分葉數、穗數、產量之調查結果會作統計分析。試驗結果認為染色體相互轉座同型體間之各農藝性狀甚為均勻(Homogeneous) ,認為此等系統,除染色體發生變化而外其遺傳型(genotype)相同,因此認為可用相互轉座系統決定各數量遺傳因子(Polygenes)在染色體上之位置。 The RT homozygotes, 10 lines of 108 (Pei-ko), 7 lines of 521 (Kissin) and 10 lines of 504 (Taichung No. 65) were tested in a randomized blocks experiment. Various agr-onomic characters which are controlled by polygenes were measured and variance analysis was made. It was found that the translocation lines are generally homogeneous in agronomic characters, and may be regarded as having the same genotype except for translocation. It was assumed that the translocation method may be used to some extent for locating polygenes on chromosomes.
Palavras-chave: [[classification]]6.
Ano: 1961
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水稻雜種不稔性之研究-(第一報)印度型與日本型稻雜種不稔性之細胞遺傳學之觀察 Taiwan Agricultural Research Institute
謝順景; Sung-Ching, Hsieh.
[[abstract]]遠緣的水稻間常產生不同程度的雜種不稔性,其原因之解釋有基於配偶子發育因子成雙隱性時阻碍配偶子之發育所致者及在雜種內發生染色體倒置之兩種主要假說。本試驗之目的貢探討染色體倒置假說之真實性。 利用蒐集自世界各地之屬於印度型及日本型的稻種33品種及其間之雜種29個組合為材料觀察其花粉母系細胞之染色體行為。在肥厚期及第一中期所觀察之染色體之配對正常,惟約以1%之頻度發生1~2對相同染色體(Homologus chromosome)早期分離所生的單價染色體。此外在第一中期出現1~4個”Streched chromosome”但親本與F1間無顯著之差異。 在第一後期的部分花粉母細胞內出現1或2個染色體橋,在所看染色體橋中半數有斷片而另半數未能看出斷片。親本與F1雜種染色體橋之出現頻度在統計上並無顯著之差異。染色體橋之出現頻度與不稔率之問在統計上無顯著的相關,故染色體橋可能對不稔率無影響。又求父母親本與F1雜種之染色體橋發生頻度之複相關結果表示染色體橋形成傾向可能為遺傳性並可遺傳至下一代。本研究基於純系親本及其間之雜種內均產生倒置之點認為此種倒置不能代表在雜種內產生染色體倒置雜性(Inversion heterozygosity)。 Hybrids between distant varieties of rice show various degrees of sterility. For discussing the cause of sterility, there are two main hypotheses: e. i. the sterility is gametic and can be explained by a set or sets of duplicate genes...
Palavras-chave: [[classification]]6.
Ano: 1957
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由花藥培養誘得單元體水稻倍加品系田間表現之初步觀察 Taiwan Agricultural Research Institute
郭益全; 林明華; 謝順景; Yi-Chuan Kuo; Ming-Hwa Lin; Sung-Ching Hsieh.
[[abstract]]本研究為了初步檢討水稻花藥培養所育成雙單元體植株之育種價值,乃選用遺傳質純接合稻株之花藥所誘得雙單元體品系進行本試驗。結果發現:從花藥之培養到雙單元體植株之誘導的整個過程中,產量4 要素之有關遺傳因子極可能發生各類不易查覺之突變,且突變後之遺傳因子對本省一、二期作生育環境之適應能力也有若干程度之差異。文中曾就此等結果加以討論,並據此等結果推論水稻之花藥培養應有利於雜接合育種集團遺傳多樣性之擴大,而實際俾益於新品種之選育。 The present studies were conducted to evaluate the value of doubled-haploid plants in rice breeding. Four of 100 completely homozygous lines developed through anther culture were randomly selected for field trial. The results of statistical analysis showed that the micromutation of quantitative characters had been induced during the process of doubled haploid development following anther culture. The performance of four major yield components controlled by minor genes as well as mutated genes, differed from crop seasons due to...
Palavras-chave: [[classification]]6.
Ano: 1980
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秈稻烹調與食用品質及穀粒性狀之遺傳 Taiwan Agricultural Research Institute
郭益全; 劉清; 張德梅; 謝順景; Yih-Chuan Kuo; Ching Liu; Te-Mei Chang; Sung-Ching Hsieh.
[[abstract]]以包括親本與正反交組合之5 × 5 秈稻全互交組合研究秈稻烹調興食用品質及穀粒大小等7 個性狀之遺傳。被評估7 個品質性狀之親本間的遺傳變異極大,此種變異係由累加性與顯性效應所引起。除膠體硬度外,各性狀之累加性效應均遠大於顯性效應。各性狀之遺傳率值均很高,強調表現型變異主由累加性效應控制。鹼質擴散度、顆粒澱粉含量、膠體硬度、粒寬及粒厚等性狀有細胞質效應。經由迴歸與變方分析估得7 個被評估性狀之顯性程度除膠體硬度為完全顯性外,餘均為部分或不完全顯性。其經迴歸圖及親本顯性次序估算判定低鹼質擴散度、低蛋白質含量、高顆粒澱粉含量、高膠體硬度、長粒、寬粒及厚粒為顯性。正負等位基因之頻度烹調與食用品質性狀相等,穀粒大小性狀不等。鹼質擴散度、蛋白質含量及顆粒澱粉含量之顯性因子總數與隱性因子總數相等,膠體硬度及穀粒大小等4 性狀則隱性因子總數多於顯性因子數。 The inheritance of 7 quality and grain characteristics related to cooking and eating qualities as well as grain dimensions in indica rice were studied by means of 5 × 5 diallel crosses including parents and reciprocal crosses. The genetic variations of 7 quality characteristic evaluated were significant. Both additive and dominance effects were important for all-7...
Palavras-chave: [[classification]]6.
Ano: 1985
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稻之遺傳因子分析-(第一報)稻之顏色遺傳因子及其他性狀之遺傳 Taiwan Agricultural Research Institute
謝順景; Sung-Ching Hsieh.
[[abstract]]為探討水稻稻體各部位之顏色及其他性狀之遺傳因子系統,筆者利用Jodon,長尾及高橋各氏之遺傳因子標識稻(gene markers)與臺灣蓬萊種,臺中65號等雜交,並觀察顏色及各性狀在F2之分離情形。根據長尾氏(1951)之研究,支配稻稃尖顏色之遣傳因子有C, Sp及A之三對。本試驗根據此等因子系統之假說對供試稻品種,加以分析並定各系統之遺傳因子型。 柱頭之著色一般在稃尖著色之下位(Hypostatic)而受將由C, Sp及A三因子之相互作用所產生的色素分佈至柱頭之Ps因子支配。除此之外,柱頭色又為有互助作用(Complementary)關係之I1ps及I2ps之兩對抑制因子(Inbibitors),所支配,其中之I2ps與Sp有完全連鎖之關係,對於稃尖以外之植物體,即穎色、葉鞘、葉節及葉間等部位著色之遺傳亦認為係在稃尖著色之下位。 另外對各形態遺傳因子亦曾作研究。曲莖受ts1及ts2之兩對穩性因子支配,其中之一與Sp有連鎖關係。在Sp因子座之附近,ts1(或ts2)與ltg(長曲粒), ts1(或ts2)與d(7237之矮性)Sp與d之間有連鎖關係,其因子之交換值(Recombination value)均有計算。植物體脆弱性(Brittle culm),谷粒無毛(Glabrous hull),無葉舌(Ligulelessness),長護穎(Long empty gfumes)及散開性(Lazy)等均受單隱性因子控制,此等性狀在本研究之範圍內未能找到連鎖關係。 In order to investigate the systems of genes for colorations at various parts and other characters of the rice...
Palavras-chave: [[classification]]6.
Ano: 1960
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稻株型之生理及遺傳研究-Ⅰ.激勃素 (Gibberellic acid) 對單基因矮稻生長之影響 Taiwan Agricultural Research Institute
張德梅; 謝順景; Te-mei Chang; Sung-ching Hsieh.
[[abstract]]利用日本型稻嘉南8 號、高雄27 號、臺中66 號、臺中155 號及嘉農242 號及由此等品種經放射線處理後所得單基因矮稻共21 品系為材料,以500ppm 濃度之GA 作種子之浸漬、植株噴撒及主幹之注射等三種處理。然後觀察其節間及株高之反應情形。 經種子處理後之秧苗生長受抑制者較多,但約30% 形之矮稻系統有促進影響。GA 對株高之促進影響有隨噴撒次數之增加而增加之勢。顯示GA 有累積促進效果。稻之全生育期中分蘗期,幼穗分化期,及抽穗期三期對GA 之反應較大。某些突變矮稻(如D-242-53 )經GA 處理後株高及其他農藝性狀與其正常親本(嘉農 242 號)無異,其狀如同反祖型。 對 GA 影響最大的節間為第 4 節,其增加借數介於 22~26 之勸次為第 2 及第 3 節間,此三節間較容易受遺傳及環境因子之影響,進行矮稻之育種時此三節可作選拔之對象。 Effects of gibberellic acid ( GA ) on the plant height, with special emphasis on the pttern of internode elongation of single-gene semi-dwarf rice was studied. Four japonia type varieties together with 15 dwarf strains induced by irradiation were treated with 500 ppm of GA water solution. The seeding height of the majority of strains tested was found to he repressed,...
Palavras-chave: [[classification]]6.
Ano: 1970
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稻穀粒性狀之遺傳研究 Taiwan Agricultural Research Institute
郭益全; 謝順景; Y.C. Kuo; S.C. Hsieh.
[[abstract]]本試驗以Mira(Pl)× Norin 20(P2)組合之包括Pl、P2、Fl、F2、BCl及BC2等六個遺傳集團為材料,探討該組合稻穀之粒長、粒厚、粒寬及百粒重等4 個穀粒性狀之遺傳行為,結果獲知:粒長、粒厚、粒寬及百粒重等4 個穀粒性狀在F2集團之頻度分布圖形均呈連續性分布,但4 穀粒性狀分布圖形之樣式則不盡一致。雜種優勢、純雜種優勢及自交衰退量等三種遺傳介值普遍存在4 穀粒性狀,其經以Potence value 判定4 穀粒性狀在Fl之顯性程度及Mather and Jinks 變方成分劃分以評定4 穀粒性狀顯性度之估算結果十分近似,均呈短粒對長粒及粒厚對粒薄為不完全顯性;粒寬為超顯性;粒重方面則為微小程度之不完全顯性。經世代平均值分析指出,粒長及粒重之遺傳變異由累加性、顯性、累加性 × 累加性交感、累加性× 顯性交感、顯性 × 顯性交感等成分所支配,且兩性狀之顯性及顯性 × 顯性之交感等兩成分符號相反,表示屬重覆型之上位性。而粒厚之變異主要係累加性、顯性及累加性 × 累加性交感成分之效應。粒寬之變異則由顯性及累加性 × 顯性交感兩成分之效應所左右。4 穀粒性狀之廣義遺傳率介於82-94%之間,狹義遺傳率介於34-69 %之間,其中以粒長之遺傳率較高,而以粒厚者較低。相關分析之結果發現粒重與粒長、粒厚及粒寬均呈極顯著之正相關。 Genetical studies were made on four grain characters in rice using Fl F2 BCl and BC2 populations of the cross between Mira (Pl) and Norin 20 (P2) varieties. The grain length,...
Palavras-chave: [[classification]]6.
Ano: 1982
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稻米粒品質之改良-II.米粒膠體硬度及顆粒澱粉含量之遺傳 Taiwan Agricultural Research Institute
郭益全; 謝順景; Yih-Chuan Kuo; Sung-Ching Hsieh.
[[abstract]]本研究使用嘉農秈11 號× 臺農67 號及臺南5 號× 臺中在來1 號等兩個秈稉異型稻間之雜交F2集團為材料,測定各單株米粒之顆粒澱粉含量及膠體硬度等兩個主要食用品質性狀,以闡述秈稉雜交後代米粒食用品質之遺傳行為,結果獲知: 1. 兩雜交組合F2集團膠體硬度之頻度分布為具尖峰之偏歪分布,且均可分成3 高硬度:1 低硬度之比例,符合孟德爾氏單性雜種分離之遺傳理論。 2. 兩雜交組合F2集團顆粒澱粉含量的頻度呈常態分布,唯分布之平均恰落在低含量親本均值附近,且有相當多數之個體向左超越低含量之親本,顯示顆粒澱粉含量雖屬量的性狀,但仍極易選獲具有理想顆粒澱粉含量之單株。 3. 在嘉農秈11 號× 臺農67 號組合,穀殼苯酷反應陰性者之膠體硬度之平均值(41.7mm)顯著地高於陽性反應者(36.6mm)。表示陽性反應者(一般為秈稻)之米粉膠體較硬;陰性反應者(一般為稉稻)較輭。但陽性與陰性反應二群之顆粒澱粉含量平均依次為19%與18.6%,並無差異存在。 4. 膠體硬度與顆粒澱粉含量成極顯著之負相關;而兩者與其他產量構成性狀則無相關關係。 5. 膠體硬度及顆粒澱粉含量之廣義遺傳率值均很高,膠體硬度約90%左右,顆粒澱粉含量則在77%之譜。 Two eating qualities of rice, gel consistency and amylose content were studied genetically with the F2 populations of the crosses Chianung-Sen 11 (indica type) × Tainung 67 (japonica type) and Tainan 5 (japonica type) × Taichung...
Palavras-chave: [[classification]]6.
Ano: 1983
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高蛋白水稻之育種研究-2.稉稻早晚熟品系間雜交後代之米粒蛋白質含量、抽穗期及其他性狀之遺傳 Taiwan Agricultural Research Institute
郭益全; 謝順景; I.C. Kuo; S.C. Hsieh.
[[abstract]]為探討早熟E基因與米粒蛋白質含量之關係,乃利用攜有不同來源之早熟基因的isogenic系統為材料,進行早晚熟稻間之雜交,以究明各雜交後代集團之米粒蛋白質含量等性狀之遺傳與變異及各性狀彼此間之相關關係等。玆將主要試驗結果摘要如下:早熟親本(BB-11-5-8-6,Bl-1-4-11及BI-14-4-2-6)之米粒蛋白質含量為9.6%,較晚熟親本(40-20-5-6)之7.8%約高1.8%。F2集團蛋白質之平均含量或與低蛋白親本相近或低於兩親之中間值,表示蛋白質含量低者對高者似為顯性或部份顯性。早晚熟稻間雜交組合之F2世代分離成3早熟性:1晚熟性之比例,表示抽穗期受1對主效基因所控制。而由超越分離現象知抽穗期可能尚受微效基因之修飾。F2世代早熟性與蛋白質含量呈負相關,表示早熟植株之米粒蛋白質含量較晚熟者為高。一般而言,各性狀之遺傳相關值遠較環境相關值為大;而表現型相關值則介於兩者之間。米粒蛋白質含量與各性狀間之相關值均為負值,與穗重之負相關則達極顯著之水準,餘者之顯著性概因組合之不同而異。估得米粒蛋白質含量之遺傳率介於0.31~0.56之間,控制米粒蛋白質含量之有效基因對數為1~2對。綜合本試驗結果,推論控制米粒蛋白質含量之因子與早熟E基因之間有連鎖關係,故認為由早晚熟稻閒之雜交集團應可選獲高蛋白質含量之早熟豐產的理想因子型。 Various early maturing isogenic lines of rice having the same genetic background were crossed with the late maturing lines, and protein content, days to heading as well as various...
Palavras-chave: [[classification]]6.
Ano: 1978
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高蛋白水稻之育種研究-Ⅰ.稉稻早晚熟品系間雜交後代之米粒蛋白質含量及其他農藝性狀之變異 Taiwan Agricultural Research Institute
郭益全; 謝順景; 宋素英; I.C. Kuo; S.C. Hsieh; S.Y. Song.
[[abstract]]利用早晚熟性之isogenic系統的水稻為材料,藉各性狀頻度分布之圖形來描述雜種集團之米粒蛋白質含量及其他農藝性狀之遺傳變異。結果獲知早熟系統為相對短稈、穗短而輕之品系,並觀察到米粒蛋白質含量、株高、穗長及穗重等四性狀與抽穗期之早晚有某種關係存在,而早熟基因團則不影響原遺傳因子型之分蘗能力。文中並曾就各性狀之頻度分布圖形來初步描述各該性狀之族羣特徵。 Genetic variation of protein content and various agronomic traits in the hybrid population of early x late isogenic lines was studied. Variation in protein content and other traits in F2 varied greatly from different cross combinations. From the F2 distribution curve in comparison with that of parental lines, it is assumed that the low protein content is dominant over high protein content. Early maturing is found to be related with high protein content. Further, genetic variations of plant height, panicle number, panicle length, panicle weight, percent seed setting and...
Palavras-chave: [[classification]]6.
Ano: 1978
Registros recuperados: 19
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