水稻不同品種間在直播下之萌芽能力

Variation of Emergence Ability of Rice Using Direct-Seeding Method

楊嘉凌(Jia-Ling Yang) ； 吳詩都(Shu-Tu Wu) ； 曾富生(Fu-Sheng Thseng)

《臺中區農業改良場研究彙報》 56期 (1997/09) Pp. 1-9

https://doi.org/10.6956/BTDAIS.199709.0001

摘要

本試驗以台灣的在來種及育成品種（日本型及印度型）共235品種為材料，進行幼苗萌芽特性等性狀之調查，探討水稻在不同直播處理下之萌芽反應。於覆土3cm的直播處理下，235個品種間有差異，2.6%的品種未萌芽，43.4%的品種有高於80%的萌芽率，4.4%的品種萌芽率達100%。三個稻品種群之間萌芽率呈顯著差異，在來品種萌芽率明顯高於育成之日本及印度型，日本與印度型稻之間未達顯著差異。四個育成地區間以東部品種明顯高於北部品種。在湛水直播處理下，品種間有差異，68.9%的品種萌芽率高於80%，4.4%的品種萌芽達100%，三個稻品種群間與四個育成區域間的萌芽率均未達顯著差異。穀粒性狀與萌芽特性之間的相關關係結果：日本型稻的穀粒寬及百粒重與萌芽率之間呈正相關，在來品種的穀粒長度及百粒重與萌芽率之間呈正相關。

關鍵字

水稻 ； 直播 ； 萌芽能力

並列摘要

Three groups of rice in total 235 varieties including landrace, improved japonic and indica cultivars in Taiwan were used in this experiment. The results are as follows:(1) Dry-sown at 3 cm seeding depth: Differences were found among the 235 varieties in which 2.6% were unemerged, 43.4% had higher emergence percentage (＞ 80%), and 4.4% emerged at 100 percentage. The mean emergence of landrace cultivars were significantly higher than that of indica and japonica cultivars, but no significant difference between indica and japonica varieties. Among the 4 districts of improved rice in Taiwan, the emergence rate of cultivars from eastern district were significantly higher than those from northern district.(2) Water-sown at 3 cm seeding depth: Differences were found among the 235 cultivars. in which 68.9% had higher emergence rate and 4.4% emerged to 100 percentage. No significant difference was found among the 3 groups of rice and also among 4 districts of improved rice.

並列關鍵字

rice ； direct-seeding ； emergence ability