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RISS 인기검색어
- 검색키워드
- 저자 : Beachell, H.M. (검색결과 4 건)
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許文會,H.M. Beachell,張德慈 한국작물학회 1969 Korean journal of crop science Vol.- No.5
IRRI 육종포장에 육성된 단간성 Indica품종에 T(N)1, CP231 231SLO17, 및 B569A12와 기타 몇가지 Indica품종이 교배된 F2 집단의 초장을 측정하여 F2 잡종들의 초장에 관한 분리를 조사하였는데 그 결과는 다음과 같이 요약된다. 1. 동남아의 장간 Indica품종들은 대만품종 T(N)1에 교배되어 3:1로 분리하는 것과 3:1로 분리되지 않는 것으로 구분된다. 2. U.S.A. 품종들은 특히 단간자료로 쓰이는 CP231-SO17과 B569A12는 T(N)1과의 조합에서 3:1로 분리하지 않는다. 3. T(N)1의 단간성 대응유전자를 가진 품종일지라도 조합 상대품종에 따라 우성 정도, 초월분리 정도가 다르다. 4. 간장에 관하여 보족적인 현상을 나타내는 경우가 있다. 즉 단간x단간에서 장간 분리개체가 많이 나왔다. B569A12xT(N)1은 그 예이다. 5. 복잡한 유전구성품종을 단순한 유전구성품종에 Backcross하여 단순한 유전분리현상을 관찰할 수 있었다. Peta/2xB569A12는 그 예이다. A genetrc study was made on plant height of indica rices with a few segregating F2 populations involving three semi-dwarf varieties such as T(N)I, CP231-SLO17, and B569A12. These populations were grown in breeding nursery at the International Rice Research Institute (IRRI) during several seasons. 20 to 25 day old seedlings grown at upland seedbed were transplanted to the paddy in a single plant hill spacing 30 cm ~times 25cm. Measurements of plant height were made from the juncture between culm and roots to the tip of the longest panicle of a plant pulled out from the paddy when they are matured. The results are summarized as follows: 1. Tall indica varieties originated from the south-east Asian countries could be classified into two groups depending upon their allelism whether they showed monogenic segregating ratio of 3:1 or not when they were crossed to T(N)1. 2. Most of U.S. varieties, especially semi-dwarf breedirg materials such as CP231 ~times SIO17 and B569A12, did not show monogenic segregating mode of 3:1 ratio when they were crossed to T(N)1 or to other varieties bearing the same genetic allele of T(N)1 such as Peta and Sigadis.
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수도 품종간 교잡에 있어서의 초장의 유전 분리 1. Indica x Indica 조합
허문회,장덕자,Heu, Mun-Hue,Beachell, H.M.,Chang, T.T. 한국작물학회 1969 한국작물학회지 Vol.- No.5
A genetrc study was made on plant height of indica rices with a few segregating F2 populations involving three semi-dwarf varieties such as T(N)I, CP231-SLO17, and B569A12. These populations were grown in breeding nursery at the International Rice Research Institute (IRRI) during several seasons. 20 to 25 day old seedlings grown at upland seedbed were transplanted to the paddy in a single plant hill spacing 30 cm ${\times}$ 25cm. Measurements of plant height were made from the juncture between culm and roots to the tip of the longest panicle of a plant pulled out from the paddy when they are matured. The results are summarized as follows: 1. Tall indica varieties originated from the south-east Asian countries could be classified into two groups depending upon their allelism whether they showed monogenic segregating ratio of 3:1 or not when they were crossed to T(N)1. 2. Most of U.S. varieties, especially semi-dwarf breedirg materials such as CP231 ${\times}$ SIO17 and B569A12, did not show monogenic segregating mode of 3:1 ratio when they were crossed to T(N)1 or to other varieties bearing the same genetic allele of T(N)1 such as Peta and Sigadis.
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The Rice Blast Disease in Korea and Its Control with Race Prediction and Gene Rotation
크릴피(P. CRILL),Y.S. HAM(咸泳秀),비체에이치엠(H.M. BEACHELL) 한국육종학회 1981 한국육종학회지 Vol.13 No.2
Laboratory experiments were conducted to evaluate seed leakage solutes during imbibition as physiological character associated with germinability of soybeans. The electrical conductivities of the leakage solutes of soybean seeds from four varieties Essex, Pickett, Wayne and Bonus were measured at different temperatures and soaking time. As time and temperature increased, leakage solutes from the seeds become significantly pronounced. There were significant differences in the leakage solutes among varieties. The average electrical conductivity of leakage solutes from Essex and Pickett after 40 minutes soaking was significantly lower at 20, 25 and 30℃ than those of Wayne and Bonus. The conductivity of leakage solutes was negatively correlated with subsequent seedling growth of soybean seeds.
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