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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 3
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Breeding for Disease and Insect Resistances in Keng Rice Taiwan Agricultural Research Institute
Chen-seng Huang; 黃真生.
[[abstract]]Tainung 67 was crossed with Tetep, Carreon, Dawn and other donor parents followed by 3 to 4 consecutive backcrossings to Tainung 67 for improving its blast resistance. A genetic study on the BC1F1’s revealed that Tetep was most numerous in the genes resistant to 4 races of the blast fungus tested. An upland blast nursery with corn border lines facilitated the screen-testing of breeding lines. Many new selections from this breeding program were resistant to the blast disease and outyielded Tainung 67. Tainung 67 was also crossed with yellow dwarf resistant Firooz, followed by 2 consecutive backcrossings to Tainung 67. From the segregating progenies of these backcross hybrids, 11 new strains resistant to yellow dwarf were selected. The yields of...
Palavras-chave: [[classification]]6.
Ano: 1985
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Effect of Seed-Blending of Rice Varieties on Grain Yield and Occurrence of Blast Disease Taiwan Agricultural Research Institute
Chen-seng Huang; Chen-chang Chen; Chyr-guan Chern; 黃真生; 陳正昌; 陳治官.
[[abstract]]Ten blends, formed from two blast (BL) and brown planthopper resistant varieties and one susceptible major variety of rice, were tested with their component varieties in BL free and also prevailing areas. The three varieties are closely related, therefore nearly isogenic. No significant yield difference existed among entries in two tests conducted at the BL free site, while the yield difference was highly significant in the BL nursery test. Those resistant varieties and their blends were all BL resistant. Many blends showed a decrease in observed disease rates from those expected from their component varieties in pure stands, at most by 27.0% to 48.8% in LBL and 44.1% in PBL. The percentage tended to be high at initial and recovering stages of...
Palavras-chave: [[classification]]6.
Ano: 1987
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水稻品種臺農67號之育成 Taiwan Agricultural Research Institute
黃真生; Chen-seng Huang.
[[abstract]]水稻品種台農 67 號是由(臺中試 138 號 × 台農 61 號) × 台農 51 號之後代選出。全省區域試驗第一期作平均比對照種增產 10.5%,第二期作增產 11.9%。其高產特性於臺北及新竹區地方試驗再度確認。本品種之全生育日數與對照種相似,植株稍矮,較耐肥及耐倒伏。其稻熱病抵抗性與臺南 5 號相似,稍抗細菌性白葉枯病,稍耐飛蝨及小粒菌核病。米質達一般蓬萊稻之標準。 Rice variety Tainung 67, a selection from the cross of Taichung Shih 138 X Tainung 61/2, outyielded the control varieties in the regional yield tests by 10.5% in the first rice crop and by 11.9% in the second crop on a provincial average. Its high-yield potential was confirmed in the local trials of Taipei and Hsingchu districts. The total growth duration of this variety was similar to the control varieties. It was relatively tolerant to lodging and more favorably responsive to nitrogen fertilizers due to shorter height of its plant. In the uaiform disease...
Palavras-chave: [[classification]]6.
Ano: 1979
Registros recuperados: 3
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