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Registros recuperados: 147
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水稻品種(系)對稻熱病抵抗性反應之研究 Taiwan Agricultural Research Institute
陳隆澤; Lung-Che Chen.
[[abstract]]測定國內外抗病品種(系)對本省主要稻熱病菌生理小種之反應,期以選得高度穩定抗病種源做為抗病育種之材料,並探討水稻品種(系)對葉及穗稻熱病抵抗性之相關以及期作、接種源等與抗病性之關係,以供抗病育種之參考。玆將試驗結果摘述如下: 1. 參試 20 個品種(系)以人工接種本省主要流行稻熱病菌生理小種結果顯示對六個小種均表現抗病的有 12 個品種(系),惟除臺南 6 號及臺東 29 號外均為秈稻。一般抗葉稻熱病之品種(系)亦對穗稻熱病具有抵抗性,但有例外。 2. 統一病圃檢定結果與人工接種結果頗相符合,能抵抗多數小種的品種(系)在病圃亦多表現高度抗病性。 CIAT-ICA 5 , IR1416-123-5-8 , IR1905-ppll-29-4-61 , IR3239-5-160-3 , IR4547-2-l-2 , IRS 5533-pp85-1 及 IR9560-00948-1 等品系均具有高度抗病性是為抗病育種之最佳材料。 3. 水稻品種在七十年第一、二期作對同一接種源之反應均極一致,無論秈、稉稻均然。 4. 臺南 5 號及臺農 67 號在第一期作低溫時較易感病,但嘉農秈 8 號及 11 號則在第二期作高溫下較易感病,尤以穗稻熱病在期作間差異更顯著。 The purposes of this experiment were to test the domestic and introduced resistant varieties and selections to local major physiological races of blast and to investigate the relationship between leaf blast and panicle...
Palavras-chave: [[classification]]14.
Ano: 1983
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水稻品種耐鹽性之研究 Taiwan Agricultural Research Institute
楊遜謙; S.C. Yang.
[[abstract]]為探求水稻品種(系)耐鹽測定方法,了解品種間之耐鹽性以及耐鹽育種應用上之可行方法,採用三種不同方法加以觀察、比較,以供抗鹽育種之參考。 1.土壤含鹽乾土重0.1%、0.2%、0.3%、0.4%、0.5%等5處理,濃度愈高,鹽害愈速而嚴重,以0.3%處理較恰當。 2.三種測定方法結果大致相同,以秧苗灌注鹽水法較為理想,且多數固體可同時進行。 3.不同生育期與耐鹽性之關係,植株愈大樹生增強,以4葉秧苗檢定成績較佳。 4.品種檢定結果以Hasawi之抗劉生最強。 Three methods were employed to test the resistance of rice varieties to salt in order to find a suitable way to screen the rice varieties or lines which were used in rice breeding progrom for salt resistant. 1. Five different treatments, 0.1, 0.2, 0.3, 0.4, and 0.5% of salt compared to total dry weight of soil, were employed to investigate the resistance of rice to salt. The injury of salt to rice plant was increased, when higher degree of salt was added. It was found that 0.3% salt treatment could be used in the...
Palavras-chave: [[classification]]14.
Ano: 1975
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水稻在不同生育時期對褐飛蝨抵抗性反應之初步觀察 Taiwan Agricultural Research Institute
楊遜謙; S.C. Yang.
[[abstract]]在本分所選育中之水稻系統對褐飛蝨(Nilaparvata lugens stal )之抵抗性,在幼苗期為抗性反應者至成熟期部份轉為感蟲。這種抗蟲性之轉變稉稻系統較和秈稻系統所佔比例為高。惟若干在幼苗期呈現中感程度之系統在成熟期卻有良好之抗蟲性、頗有利用之價值。由供試材料在不同生育時期之抗蟲性反應可知現行抗蟲性之篩選方法有加以檢討改進之必要。 Reaction of F3, F4 and F5 lines of rice to the brown planthopper at seedling and maturing stages were observed in the second crop of 1981 at Chiayi Agricultural Experiment Station. Preliminary results revealed that some of the hybrid lines which were resistant at seedling stage became susceptible at maturity stage whereas some moderately susceptible lines at seedling stage appeared resistant when they were fully matured. The switch from resistance to susceptibility was more pronounced for Japonica lines than Indicas. From this observation, it was inferred that some lines...
Palavras-chave: [[classification]]14.
Ano: 1983
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水稻尿素肥料分施試驗 Taiwan Agricultural Research Institute
楊遜謙; S.C. Yang.
[[abstract]]1.尿素肥料分施較硫酸錏肥料可提高產量。 2.水稻尿素分施次數,第一期作以3次,二期作2~3次。 3.尿素用作基肥與追肥不影響肥效,但分施量以後期較少為安全。 4.尿素施肥次數與時期頗有關係,在第一期作以處理6,第二期作以處理5為佳。 An investigation was carried out in both crops of 1964 at Chiayi Agricultural Experiment Station to evaluate the effect of the timing of urea application on rice. The rice variety Chianung 242 was subjected to the following treatments: A. Ammonium sulfate. 1/2 applied as a basal dressing, and the balance as a top-dressing at 30 days (1st. crop) and 20 days (2nd crop) after transplanting. (check). B. Urea. 1/2 applied as a basal dressing, and the balance as a top dressing at 50 days (1st. crop) and 40 days (2nd. crop) after transplanting. C. Urea. 1/2 applied as a basal dressing, and the balance as a top dressing at 60 days (1st....
Palavras-chave: [[classification]]14.
Ano: 1965
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水稻抗褐飛蝨育種方法之研究 Taiwan Agricultural Research Institute
楊遜謙; S.C. Yang.
[[abstract]]本試驗自民國65年7月至67年6月在嘉義農業試驗分所進行,其目的在於利用世代促進法兼行抗蟲性之檢定,以提高抗蟲育種之效果。初步結果顯示在世代促進法繁殖之水稻早期分離集團實施對褐飛蝨之抗蟲性檢定時可提高各集團之抗蟲率,有利於抗蟲系統之選拔,而對育成系統之生產力及主要農藝性狀則均無不良之影響。此外,世代促進法與抗蟲檢定之併用不但可節省很多人力與物力,而且年可繁殖三世代,有縮短育種年限之效果。 在世代促進法繁殖之水稻分離集團中進行抗蟲檢定時,其接蟲時間以5-7日為宜,切勿過長以免淘汰中抗程度之個體或影響檢定後幼苗之復原。 初步結果顯示在F2及F4世代行抗蟲檢定而F3世代不檢定時其感蟲後代之淘汰率與每世代均檢定者相若,顯示簡化抗蟲性之選拔,並不影響其育種效率。 This experiment was conducted from July 1976 to June 1978 at the Chiayi Agricultural Experiment Station with the objective of improving the efficiency of breeding rice for resistance to the brown planthopper by screening for insect resistance in the segregating generations treated with Repid Generation Advance (RGA) method. Preliminary results indicated that screening made in the RGA populations improved the...
Palavras-chave: [[classification]]14.
Ano: 1980
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水稻新品種-台農秈22號之育成 Taiwan Agricultural Research Institute
陳隆澤;羅正宗;吳永培;陳一心.
Palavras-chave: [[classification]]14.
Ano: 2004
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水稻稻熱病藥劑低容量防治試驗 Taiwan Agricultural Research Institute
蔡武雄;楊涌祚;李新傳;簡錦忠; W.H. Tsai;Y.Z. Yang;S.C. Lee;C.C. Chien.
[[abstract]]三賽唑75%可濕性粉劑〔Bean75% W. P. ; 5-methyl-1, 2, 4-triazole ( 3, 4-b ) benzothiazole 〕可利用動力微粒噴霧器行低容量(LV.)噴射(出水量為0.6 l / min)防治水稻葉稻熱病及穗稻熱病,其用量為葉稻熱病0.25 kg a.i./ ha,穗稻熱病0.3 kg a.i./ ha,各加水30 l。葉稻熱病之防治在插秧後35-50天施藥一次,七天後再施藥一次。穗稻熱病之防治在抽穗前七天施藥一次,可獲良好的防治效果。
Palavras-chave: [[classification]]14.
Ano: 1981
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水稻第一代什交後裔之無性繁殖及其表現 Taiwan Agricultural Research Institute
張萬來;陳瑞庭;林恩輝.
Palavras-chave: [[classification]]14.
Ano: 1971
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水稻臺農70 號之育成 Taiwan Agricultural Research Institute
楊遜謙; S.C. Yang.
[[abstract]]臺農70號係以臺農57號為母本與嘉農系比662028雜交而育成。本品種具有高產良質及抗多種病蟲害之特性。株高一期作106.1公分,二期作115.8公分比臺農67號稍高;穗數一期作16.7支,二期作14.4支;全生育日數一期作140天,二期作109天;稻穀產量根據全省區域試驗7個地區平均一期作為6,230公斤,二期作為5,685公斤,較對照品種臺農67號增產0.1~7.3%;糙米率一期82.1%,二期作81.4%。 本品種穗大且稈莖強度稍差,因此在成熟時易傾斜而倒伏。本品種適應性廣,適於中南部第二期作褐飛蝨(Nilaparata lugens stal)易發生地區栽值。臺農70號雖對稻熱病具有抗性,但76年一期作在中南部地區曾發生部份稻熱病為害情形,推測因栽培面積急增,為害該品種之生理小種頻度增強所造成。 Rice variety Tainung 70 was a selection from the progensis of a cross between Tainung 67 and Chia-nung-sipi 66028, having a high-yield potential, good quality and resistance to major diseases and insect pests. Its average plant height was 106.1 cm in the first crop and 115.8 cm in the second crop, slightly higher than those of Tainung 67. The panicle number was 16.7 in the first crop and 14.4...
Palavras-chave: [[classification]]14.
Ano: 1988
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水稻葉稻熱病預測 II.氣象變數、分生胞子數與病斑數進展之關係 Taiwan Agricultural Research Institute
蔡武雄; 蘇鴻基; W.H. Tsai; H.J. Su.
[[abstract]]利用逐步迴歸分析氣象變數、分生胞子數與水稻臺南5 號及臺農67 號葉稻熱病之關係,建立十個預測方程式,以預測葉稻熱病S 型病斑數之進展。這些預測方程式係將不同年度之氣象變數、分生胞子數及發病資料綜合分析而得到的,若將不同年度之資料個別分析時則未能得到較佳之預測方程式。綜合分析第一組氣象變數所得之預測方程式所包含之變數有最低氣溫、平均氣溫、最低相對濕度、相對濕度大於90 %以上之小時數,雨量及分生胞子數等六個變數。由第二組氣象變數所得之預測方程式所包含之變數有氣溫15.1-18.0℃, 18.1-21.0℃ , 21.1-24.0℃ , 24.1-27.0℃ 之小時數,相對濕度75.1-85.0%,85.1-90.0%之小時數,雨量及分生胞子數等八個變數。在十個預測方程式有五個方程式包含3 個變數,四個方程式包含4 個變數,僅一個方程式包含5 個變數。預測方程式之決定係數均達極顯著,同時不同之預則方程式預測不同年度之預測值時,均與實測值甚為接近,故預測方程式具有可靠性。 The purpose of this study was to analyze the relationships among meteorological variables, conidial numbers, and leaf blast incidence of rice cultivars, Tainan 5 and Tainung 67. The data were analyzed by stepwise regression. The results showed that ten predicting equations for predicting the development of the...
Palavras-chave: [[classification]]14.
Ano: 1985
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水稻褐飛蝨的經濟為害水平之研究 I. 在褐飛蝨各棲羣密度施藥防治對稻穀收量及收益之影響 Taiwan Agricultural Research Institute
鄭清煥; C.H. Cheng.
[[abstract]]在本省嘉南地區,經過六次田間試驗發現,稻穀產量明顯隨施藥時褐飛蝨之棲羣密度的增高而減少。按目前稻穀價格(保證收購或市面價格)及防治成本計算,供試三種感蟲品種,嘉農秈8號,臺中在來1號及臺南5號,無論在褐飛蝨發生密度高或低的情況下,多以每叢水稻褐飛蝨之密度平均在10隻水平或10隻以下即施藥防治所獲的純收益最高,較之褐飛蝨密度到達20隻/叢水平始施藥防治者約平均增加9%左右,而較一般農民約在40隻/叢水平以上始施藥處理者約平均增加20%。根據此項試驗結果,目前大力地推薦在褐飛蝨密度到達20隻/叢以上才有防治價值之標準應予修正,以增加稻穀產量及農民收益。 This study was conducted to determine the economic injury levels of the brown planthopper under field conditions ay artificial control of the insect as soon as its population reached the indicated population levels. Three insect susceptible cultivar, Chiann Sen 8, Taichung native 1 and Tainan 5 and four different cost insecticides were adopted in this study. The result of these experiments indicated that the grain yield differed significantly among the treatments,...
Palavras-chave: [[classification]]14.
Ano: 1978
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水稻香米品種臺農秈20號之育成 Taiwan Agricultural Research Institute
楊遜謙; 張萬來; 趙政男; 陳隆澤; S.C. Yang; W.L. Chang; C.N. Chao; L.C. Chen.
[[abstract]]臺農秈20號為本省經雜交育成之秈型香米品種,具有濃芳之香味,米質優良,並抗稻熱病,褐飛蝨等病蟲害,株高一期作109.3公分,二期作115.0公分;每株穗數一期作16.1支,二期作12.4支;全生育日數一期作143天,二期作107天;粒型中長稍細,米粒富光澤,心腹白少,直鏈性澱粉含量18.5%,種子稍具休眠性,稻穀產量根據區域試驗結果,平均每公頃一期作為6,061公斤,二期作為5,371公斤,一期作在高屏地區較高產,二期作在褐飛蝨易發生地區都適合栽培。 本品種耐寒性較差,一期作不宜過早育苗及插秧,以免秧苗受寒害,又本品種較易脫粒,在沿海季節風較大地區避免種植,以免脫粒損失,香米之香味為揮發性,因比貯藏時最好放置通風良好之涼冷地方。 Rice variety Tainung Sen 20 was a selection from the cross between Chianung Shi-pi 671178 and a F4 line, having heavy aromatic flavor, excellent rice quality and resistance to blast disease and brown planthopper. Its plant height was 109─115 cm with panicle number of 12─16 per hill, and the growing duration, 107─143 days. It has long grains somewhat slendel and shinny, with very few white-belly kernel. The average grain yield at 3...
Palavras-chave: [[classification]]14.
Ano: 1988
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淺談糧酒 Taiwan Agricultural Research Institute
柯佩怡; 吳永培.
Palavras-chave: [[classification]]14.
Ano: 2005
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漫談好醋 Taiwan Agricultural Research Institute
吳永培;林志信.
Palavras-chave: [[classification]]14.
Ano: 2006
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潛在威脅臺灣甘藷產業的甘藷象鼻蟲 Taiwan Agricultural Research Institute
黃守宏; 鄭清煥.
Palavras-chave: [[classification]]14.
Ano: 2003
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為害香蕉葉片二點紅蜘蛛(Teranychus urticae(Koch))之生態觀察及藥劑防治試驗 Taiwan Agricultural Research Institute
鄭清煥; Ching Huan Cheng.
[[abstract]]1. 蕉葉二點紅蜘蛛(Tetranychus urticae(Koch)),為本省旱作及特作之重要害蟲,其寄主據調查有69種,較重要者有大豆、花生、甘藷、棉花、番茄、木瓜、蓖麻等。全省各地均有分佈。 2. 受害嚴重之蕉葉,葉背呈誘色,蕉葉萎黃,影響蕉葉壽命及蕉株發育至鉅。 3. 室內飼養,年生24代。完成一個生活圈,須經卵期、幼蟲期、第一若蟲期、第二若蟲期及成蟲等五個發育階段。在蛻變成第一若蟲、第二若蟲期及成蟲之前,須經過一段靜止期(Chrysalis)以準備脫皮。此靜止期為1-2天。各蟲期發育所須日數,受溫度之影響很大。據飼養結果,卵期2-4.86-10天,幼蟲期1-2.68-11天,第一若蟲期1-2.38-8天,第二若蟲期1-2.43-7天。完成一代須時雌蟲6-12.35-23天;雄蟲6-11.94-24天。成蟲壽命3-29.26-55天,產卵前期1-2.13-3天,產卵日期0-26.83-53天,每天產卵數0-1.91-11粒,一生產卵數0-59.17-127粒。 4. 二點紅黑蜘蛛之田間棲羣密度以5-6,9-10,12-3月較高,棲羣消長受天敵、溫度、雨量之影響甚大,溫度高時以蕉株中部葉片之棲羣密度為最高,溫度低時則以下部葉片為高。 5. 所調查之54個香蕉品種中,沖繩芭蕉,味宗蕉,基隆北蕉及Amban等四品種未見受害。同一蕉園中以1公尺以下之幼蕉受害最重,1-2公尺者次之,2公尺以上者受害最輕。 6. 蔽風及與甘藷、花生、大豆等間作,或管理較佳,發育良好之蕉園其蟲口密度較高,受害較重;平地栽培及山地栽培蕉園,在二點紅蜘蛛之發生情形並無多大差異。 7. 二點紅蜘蛛之天敵,據調查有(l)小黑瓢蟲(Stethorus spp.)兩種至三種;(2)小黑隱翅蟲(Oligota...
Palavras-chave: [[classification]]14.
Ano: 1966
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瓜類露菌病室內接種試驗 Taiwan Agricultural Research Institute
蔡武雄; W.H. Tsai.
[[abstract]]於試驗室內利用瓜類之摘葉培養瓜類露菌病菌(Pscudopenospora cubensis),由於摘葉之葉柄可以生出鬚根,吸收水分,延長摘葉之保鮮時間,使病原菌保存在摘葉一個月以上。一般在胡瓜摘葉後7-9天,洋香瓜7-13天即可生出鬚根。瓜類露菌病菌在15℃,2O℃及25℃接種於瓜類葉片4-5天後即可產生病斑,而5-6天後即可產胞。瓜類葉片正背兩面在產生病斑及產胞上無差異。病原菌胞子囊發芽以10℃及 15℃最適,在6小時後發芽率達95.18%及97.52%,高溫時發芽率降低。胞子囊釋放游走子之數目以7個最多,3個及11個者最少,平均為6.7個。室內瓜類露菌病之接種步驟可參考本文圖2方法行之。 Inoculation of downy mildew (Pseudoperonospora cubensis) on detached leaves of cucurbits were studied. Due to the root formation on the petioles of the detached leaves to absorb water, the detached leaves prolonged the fresh period in the petri dishes. Hence, the pathogen could be maintained on the detached leaves over one month. In general, root formation on the detached leaves was, observed 7-9 days on cucumis sativus L. and 7-13 days on cucumis...
Palavras-chave: [[classification]]14.
Ano: 1987
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瓜類露菌病菌胞子囊之存活 Taiwan Agricultural Research Institute
蔡武雄; 許淑麗; W.H. Tsai; S.L. Hsu.
[[abstract]]瓜類露菌病菌(Pseudoperonospora cubensis)胞子囊在30°C l天後,放同15°C,需經4小時後始可發芽,其發芽率為20.87%,24小時發芽率達63.11%。若在35°C l天後,放同15°C時則需經24小時後始可發芽,其發芽率僅7.01%,48小時後發芽率亦僅22.42%。若將病葉放在30°C l天後,再放同15°C,則其上之胞子囊,需經4小時始可發芽,病葉放在35°C l天後再放回15°C其上之胞子囊亦需經24小時始可發芽。胞子囊之發芽率隨著相對濕度之增加而增加,在相對濕度55、81、95及100%時,其發芽率分別為29.85、66.30、80.02及97.53%。在水瓊脂培養基中瓊脂之含量亦影響胞子囊之發芽率,瓊脂含量2.0時發芽率在15°C 24小時後高達99.30%,瓊脂含量3.0%時發芽率亦達96.91%,但瓊脂之含量高至8.0%時胞子囊不發芽。胞子囊在洋香瓜葉汁不發芽,在V-8汁濃度越高,發芽率越低,當V-8汁濃度達35%時胞子囊不發芽。胞子囊在土壤含水量30%,經24小時尚不發芽,4天後發芽率僅2.66%,其發芽率隨含水量之增加而增加,50%含水量時24小時後之發芽率為20.38%。另胞子囊在30%含水量之土壤中可存活至少14天。胞子囊製成胞子懸浮液後經6及24小時接種,植株均可發病,但存放48小時者不發病。 The sporangia of Pseudoneropospora cubensis were incubated at 30°C for one day, and then transferred to 15°C, additional four hours were necessary to germinate, the...
Palavras-chave: [[classification]]14.
Ano: 1989
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甘藷品種區域試驗成績報告 Taiwan Agricultural Research Institute
楊景潛.
Palavras-chave: [[classification]]14.
Ano: 1954
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甘藷塊根粗澱粉率變異之研究 Taiwan Agricultural Research Institute
李良; 廖嘉信; Liang Li; Chia-hsin Liao.
[[abstract]]本試驗為研究甘藷品種間塊根粗澱粉率之變域,以及氣候、土壤、期作及成長期等因子對塊根粗澱粉率之影響,以為甘藷高澱粉品種育種及生產技術改進之參考。 測定生長在同一環境條件下之292 個秋作甘藷品種塊根粗澱粉率,其變域自7%~22.2%,大多數品種塊根粗澱粉率在13.5%~14.5%,表示甘藷塊根粗澱粉率因品種不同而有很大之差異存在。 依品種來源之不同,其塊根粗澱粉率之變域,在126 個在來種中為7%~19.9%,平均為14.2%;在66 個改良種中為8.1%~18.7 %,平均為12.3%,在100 個引進種中為7.9%~22.2%,平均為15.4%,其變域及平均值,均以引進種為較大,改良種及在來種較小。各品種依塊根肉色之差異進行比較,其塊根粗澱粉率之變域及平均值,以肉色不為橙紅色者較大,而橙紅色者較小,可知利用引進品種與塊根肉色不為橙紅色之品種為親本,其後代選育具高澱粉之甘藷品種,將可得到較有利的效果。 根據分析結果,不同地點及年份對塊根粗澱粉率的影響極為顯著,地點間平均粗澱粉率之變域為13.1%~15.9%,年份問變域為17.1%~18.5%,地點與品系及年份與品系交感作用亦均為極顯著,表示不同品系在不同地點或不同年份問粗澱粉率之相對表現均有極顯著的差異。 不同期作間塊根粗澱粉率之變域為9.8%~14.9%,秋作及裡作比春作及夏作有明顯的增加,而同期作不同生長期塊根粗澱粉率之差異,以180 天或150天採收者顯著比120 天採收者增加。 塊根粗澱粉率隨貯存日數之增加而有明顯的降低,貯存期間(自0~40 天)之變域為14.8%~ 16.4%,採收後貯存40 天者較採收當日及採收後貯放20 天者有顯著之減低,採收當口與採收後貯放20 天間之差異則不顯著。...
Palavras-chave: [[classification]]14.
Ano: 1983
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