查詢結果分析
來源資料
頁籤選單縮合
題名 | 中美洲水稻品種(系)產量比較試驗=Yield Trials of Rice in Central America |
---|---|
作者 | 李國銓; | 書刊名 | 國際技術合作研究彙報 |
卷期 | 4:2 1997.06[民86.06] |
頁次 | 頁69-77 |
分類號 | 434.111 |
關鍵詞 | 再生稻; 生育日數; 抗病性; Regenerative rice; Days to maturity; Disease resistance; |
語文 | 中文(Chinese) |
中文摘要 | 本試驗乃利用前期觀察試驗結果所選拔之優良材料及中美洲稻作種原庫(El Vivero de Arroz Centroamericano) 所提供之材料,並以瓜國之 Motagua 品種及 IG 2331 品系作為對照品種,進行產量比較試驗,以選育具有潛力之品種 (系 ),作為改良瓜國稻作 品種之材料,並探討再生栽培之可行性,以供推廣栽培之參考。 試驗結果如下:1. 從參試 之 23 個材料中,共選拔 11 個具有優良農藝性狀及抗病性強之材料。 2. 參試品種 (系 ) 間之產量有極顯著之差異存在,平均公頃產量介於 5.27 至 8.94 公噸,而以瓜國 IG-2331 品系之產量最高,每公頃 8.94 公噸。3. 所有參試品種 (系 ) 之再生稻之農藝性狀與再生 稻並無差異。但生育期縮短,平均生育期只有 76 天,比原生稻縮短 46 天,再生稻之產量 介於 3.1 至 5.5 公噸 / 公頃。 4. 原生稻與再生稻之產量合計以瓜國之 IG-2331 為最高 , 有 14.1 公噸 / 公頃,其次為薩爾瓦多之 P4752F2-9-MS 及巴拿馬之 IPIAP T25-19 分 別有 14.0 及 13.1 公噸 / 公頃。5. 在田間選拔之 11 個優良品種 (系 ) 中,有 7 個材 料之米質優良,精米率為 71 至 74%,完整米及四分之三米率在 58 在 64%,心白少,米粒 外觀佳至極佳。 |
英文摘要 | Yield trials of rice in Central America were conducted to evaluate the performance of materials selected from the trials of last year and materials provided by 'EL Vivero de Arroz Centroamericano'. The variety Motagua and line IG2331 from Guatemala were used as control varieties. The object of this experiment is intended to select potential materials as breeding stocks and the feasibility of regenerative methods for rice cultivation also be conducted. Results are shown as follows: 1.Among 23 materials tested, 11 were selected based on the performance of agronomic characters and the resistibility to disease. 2.There are significant differences between those varieties (lines). The averaged from 5.27 ton/ha to 8.94 ton/ha. Line IG-2331 from Guatemala showed the highest yield of 8.94 ton/ha, followed by line P4725F2-9-2-MS (8.39 ton/ha) from El Salvador and line IDIAP T25-19 (8.30 ton/ha) from Panama, and then line ECIA 386F2-2 from Nicaragua giving the lowest yield of 5.27 ton/ha. 3.The regenerative rice has the same agronomic characters as the original on but it matured earlier. The average growing period of the regenerative rice was 76 days, which was 46 days shorter than the original. The average yield of regenerative rice ranged from 3.1 ton/ha to 5.5 ton/ha, which is lower than the original rice. 4.Line IG-2331 from Guatemala showed the highest total yield of the original and regenerative rice of 14.1 ton/ha, followed by line P4752 F-2-9-2-MS (14.0 ton/ha) from El Salvador and line IDIAP T25-19 (13.1 ton/ha) from Panama, respectively. 5.Among the 11 selected materials from field test, 7 of them gave the most acceptable milling quality and grain appearance. Their head rice ratio were 71% to 74% which also have low white center and good appearance. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。