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題 名 | 甘蔗新品種ROC22與ROC23機械青採適合性評估=Evaluation of Mechanical Green Harvestability for Newly Released Sugarcane Cultivars ROC22 and ROC23 |
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作 者 | 張翊袖; 陳先明; 孟智遠; 杜清松; | 書刊名 | 臺灣糖業研究所研究彙報 |
卷 期 | 158 1997.12[民86.12] |
頁 次 | 頁1-13 |
分類號 | 434.715 |
關鍵詞 | 甘蔗; 機採適合性; 梢頭部; 青葉寬; 倒伏; 殘莖量; Sugarcane; Mechanical harvestability; Green top; Green leaf width; Lodging; Ground loss; |
語 文 | 中文(Chinese) |
中文摘要 | 甘蔗新品種ROC22與ROC23分別於85年4月及86年6月命名推廣。此二品種在 成熟期間梢頭部小,易脫葉,不易倒伏,被認為是適合機械青採的品種。ROC22在佳 里三股及善化番子寮試驗區之機採效率(每分鐘採收之蔗量)較ROC10平均高出10 %,達顯著差異;而ROC23在新營柳營及南靖新庄試驗區之機採效率平均高出ROC10 3%,差異未達顯著。經統計分析機採有關的農藝性狀發現甘蔗梢頭部重量及青葉寬 度與機採效率有較密切關係。以路徑係數分析證明梢頭部重量與青葉寬度對甘蔗品種 之機採效率具有較大的負面直接作用,因此在育種上值得注意改良此二性狀。由於本 試驗期間參試品種倒伏等級一致,除柳營農場之試驗區外,其餘試驗區甘蔗成熟期蔗 株均呈直立或微傾,因而無法真正瞭解倒伏對甘蔗品種機採效率之影響程度。由柳營 農場試驗區甘蔗呈斜倒與同時期新庄農場試驗區甘蔗未倒伏比較其機採效率,發現倒 伏甘蔗機採效率降低6-16%,甘蔗倒伏對機採效率之影響程度,品種間互異。 |
英文摘要 | Sugarcane cultivars ROC22 and ROC23 were released in April 1996 and June 1997, respectively. These two cultivars were considered suitable for mechanical green harvesting for their small green top, easy trashing, and not easy to lodge during maturation. ROC22 was 10% higher than ROC10 in the efficiency of mechanical green harvesting (EMGH, the amount of cane harvested per minute) at the large-plot regional trials conducted in the plantations of Chiali and Shanhwa, The difference was significant. ROC23 was superior to ROC10 by 3% in the EMGH at the trials carried out at the Hsinying and Nanchin plantations. The difference here was not significant. Statistical analysis showed that top weight and green lead width were closely associated with the EMGH. Path analysis also indicated that top weight and green leaf width had larger negative direct effects on the EMGH, suggesting that these two agronomic characteristics need more attention in the process of selection. The lodging degrees of the entries were the same during the trials. The stalks of sugarcane were generally erect at the test plots during maturation, except for the plots at the Hsinying plantation where the plants grew so vigorously and heavily that the stalks lodged at harvest. EMGH of lodging cane at the Hsinying plantation was lower than that of the erect cane simultaneously tested at the Nanchin plantation by 6-16%. The effect of lodging on EMGH varied with varieties. |
本系統中英文摘要資訊取自各篇刊載內容。