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水稻宿根栽培方法之研究 (第二報) 品種間再生力及產量之變異

Studies on the Cultivation of Ratooned Rice Varietal Variation on Ratooning Ability and Yield

摘要


1.爲探討水稻收刈之再生力及產量之品種間差異乃利15種蓬萊種及兩種在來種進行田間試驗結果認爲有生育日數長的品種再生力較強。 2.一般而言移植稻之稈長較宿根稻爲高其穗數亦較宿根稻多1-2支。 3.生育日數均以宿根稻爲短,移植稻爲長相差日數7-10天。 4.本試驗供試品種範圍內稻谷收量均以移植稻爲高宿根稻皆低,兩者之差異甚爲顯著。 5.宿根栽培品種間產量之差異在統計上極为顯著其最高品種與最低品種之相差達40-50%之钜。

關鍵字

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並列摘要


1. Fifteen ”ponlai” and two ”native” varieties of rice were used for studies of varietal variation in ratooning ability and yield. It was found that the varieties with longer growing days tended to have stronger ratooning ability. 2. Generally speaking, culm height and number of ears in transplanted rice are larger than those of ratooned rice. 3. The number of growing days in ratooned rice was 7-10 days earlier than that of transplanted rice. 4. Significant difference between yields of transplanted and ratooned rices was found. The former was found to be higher in yield than the later. 5. Significant difference in yield among varieties of ratooned rice was found.40-50% difference was seen in the heighest and the lowest classes.

並列關鍵字

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