|Title:||水稻抗稻熱病多品系品種及混合品種之抗病性、生產力及品質之研究||Other Titles:||Studies on Disease Resistance, Yielding Capacity and Grain Quality of Blast Resistant Multiline and Composite Varieties of Rice||Authors:||邱善美
|Issue Date:||1-Dec-1976||Publisher:||農業試驗所||Journal Volume:||25||Journal Issue:||4||Start page/Pages:||249-258||Source:||中華農業研究||Abstract:||
The present study was aimed to compare the blast resistance, productivity and grain quality between the multiline and composite varieties of rice. The performance of the multiline and composite varieties was evaluated at the three heavy blast infected locations Northern, Central and Southern part of Taiwan respectively. It was observed that both multiline and composite varieties were more resistant to blast disease in comparison with the ordinary varieties Tainan 5 and Chianan 8. The composite varieties generally showed a higher resistance to blast than the multiline varieties.
Grain yield of the composite or multiline varieties was much higher than the control varieties. In the first crop, variety M-8-1 gave 50% higher grain yield at Pinlin (Northern Taiwan) . Other composite or multiline varieties showed 7. 3%-45% yield increase as compared with the controls. At Paiho (Central Taiwan) where the disease epidemics was very severe, the yield of composite and multiline varieties such as C-8-1, M-8-1 and M-8-2 were 2~3 fold higher than the controls. At Wanlan (Southern Taiwan), except variety C-5-2, all other composite or multiline varieties showed an increase in grain yield ranging from 4.8%~32.5%. In the second crop, no apparent yield increase was observed due to no blast disease epidemics, with the exception of Pinling experimental field.
It was found that grain qualities such as translucent, white center and white belly etc. were closely related with blast resistances; multiline or composite varieties had better grain quality than the controls.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
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