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서학수,조준현,서정필 한국육종학회 2002 한국육종학회지 Vol.34 No.3
In order to know the phylogenetic relationships betwen wild, weedy and cultivated rice, half diallel crosses among nineaccessions including a wild rice Oryza rufipogon W130, thre long grain weedy rices Cheongdoaengmi 1 from Korea, C9575 fromJapan, BT5d from Bhutan, and thre short grain weedy rices Kyeongsanaengmi 14 from Korea, C81 and C79-1 from China, anindica cultivar IR36, and a japonica cultivar Nagdongbyeo were made and the F1s were evaluated in the field for sed fertility.Allozyme variations at 11 loci from six isozymes and RAPD variations in 64 loci from 37 primers of the wild, weedy and cultivatedrices were evaluated. High sed fertility was found in F1s among the long grain weedy strains, and the F1s between long grainweedy strains with the wild rice strain W130 and the indica cultivar IR36 also showed high percent of seed set . However, the F1fertility among the short grain weedy rices showed variation in acordance with the origin. The F1 fertility of the short grain weedyrice accessions with the wild rice or the japonica cultivar Nagdongbyeo was also diferent in accordance with the origin. The testedmaterials were classified into two groups based on isozyme and RAPD variation. The long grain weedy rices, the wild rice W130and the indica cultivar IR36 were clasified into one group and the short grain weedy rices and the japonica cultivar Nagdongbyeointo the other. RAPD variation was biger than isozyme variation, and RAPD markers seemed to be more effective for classifyingrice varieties. F1 fertility, isozyme and RAPD did not produce the consistent variation pattern, thus, employing more than onemarker system is more efective than a single marker for classifying rice varieties. Kye words : Weedy rice, Phylogenetic relationship, F1 fertility, Isozyme, RAPD. .
서학수,Hak-Soo SUH 한국작물학회 1979 Korean journal of crop science Vol.24 No.3
748개의 벼 품종을 파종하여 토양수분이 포화된 상태로 30일간 재배한 후 40일간 단수하여 한발을 조장한 다음 각 품종들의 한발에 대한 반응을 검정한 결과는 다음과 같다. 1. 한발처리기간 중 초장의 신장정도는 일본품종들이 가장 컸고 IRRI 도입품종, 한국재래품종 및 Indica / Japonica 품종 순이었다. 2. 한발처리후의 위조정도는 IRRI도입 품종들이 가장 경미하였고 일본도입품종, Indica / Japonica 품종 및 한국재래품종 순이었다. 3. 유묘기 내한성품종으로 원길조, 한양도, YR 52-$_{x}\textrm{BF}_7-67, Satominori, Mamoriaka, 적야난11004, 죽 홍난, IR 937-55-3, IR2735-F_3B-6-2, IR 2871-53-2, $_{x}\textrm{BFI76}^9/Dwan, Khoo Dook Mali-4-2-105, Os6, Palawan, IRAT10, TOS 2583 및 H-l05 등이 발달되었다. 4. 한발처리후의 조장, 조장신장량 및 초장신장율과 위조정도와는 높은 부의 상관이 인정되었다. 5. 한발처리후의 지상부 생체중, 건물중 및 수분함량과 위조정보와는 높은 부의 상관이 인정되었고 특히 수분함량과 위조정도와의 상관이 높았다.(r=0.860, n=21). 6. 한발처리후의 도열병발병과 위조정도와는 높은 정의 상관이 인정되었다. 7. 발아속도 및 처리전초장 (30일묘)과 내한성과는 상관이 없었다. Seven hundred and forty eight rice cultivars were screened for drought tolerance at seedling stage in a special green house. A number of cultivars such as Wonkiljo, Hanyangdo, YR 52-$_{x}\textrm{BF}_7-67, Satominori, Mamoriaka, Akanomochi 114, Thkebenimochi, IR 937-55-3, IR2735-F_3B-6-2, IR 2871-53-2, $_{x}\textrm{BFI76}^9/Dwan, Khoo lliok Mali-4-2-105, Os6, Palawan, IRAT10, TOS 2583 and H-l05 seemed to be tolerant to drought at seedling stage. There was negative correlation between drought resistance score and growth of plant height and water content of culm and leaf after drought treatment, and highly positive correlation between resistance to blast and resistance to drought at seedling stage. There was no relationship between drought resistance and germination speed, plant height before drought treatment.