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題名:水稻品種對生理病、紋枯病及黃萎病田間抵抗性之比較    
Field Resistance of Rice Cultivars to Physiological Disease, Sheath Blight and Yellow Dwarf
著者:楊相國(S. K. Young) ;黃益田(Yih-Tyang Huang)
出版地區:台灣
出版城市:桃園縣
學科:農林漁牧礦科學
刊名:桃園區農業改良場研究報告
卷期:16期(1994.3)
頁碼:50-54
語言:繁體中文
摘要: 英文摘要PDF

Twelve rice cultivers were used for comparative studies on the field resistance to physiological disease, sheath blight and yellow dwarf under the natural infection conditions at Chiunglin, Hsinchu.
Varietal differences in physiological disease and sheath blight as well as yellow dwarf were significant during the growing period. Physiological disease was noted at early tillering stage, the midribs of the leaves turned yellow, and reddish-brown spots appeared near the tips of the older leaves and spread over the leaves (Fig. I). Disease severity varied from 1.55% in TaiKeng 2 to 6.71% in Taikeng 6.
Disease assessments for sheath blight and yellow dwarf were made at ripening stage. Degree of severity for sheath blight varied from 1.69% in Taikeng 8 to 7.63% in Kaohsiung Taikeng 142. Disease incidence for yellow dwarf varied from no infection in Taikeng 1, Taikeng 2 and Kaohsiung 142 to 1.13% in Tainung 67.
Significant difference in yield was observed among cultivars; the highest yield was obtained from Taikeng 4 with 6,806 kg/ha and the lowest yield was noted in Taikeng 3 with 3640 kg/ha. However, the difference in yield could not be attributed to the disease occurrence due to low infections.


    

本卷期目次
桃園區農業改良場研究報告 16期 (1994.3)
仙草凝膠物質之萃取及其凝膠性質之研究/ 史宏財許明仁
施用土壤改良劑對結球白菜(桃亞二號)生長之影響/ 廖乾華
聖誕紅菸草粉蝨生態及防治/ 施錫彬劉易昇
不同短期葉菜類在桃園縣沿海地區設施內周年生產可行性之研究/ 陳添來
家庭農場經營管理個案研究--以經營花卉之創業青年為例/ 楊克仁
水稻品種對生理病、紋枯病及黃萎病田間抵抗性之比較/ 楊相國黃益田
 
   
 
   

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