水稻 量的形質의 遺傳에 관한硏究 第5報. 二面交雜에 의한 世代別 主要形質의 組合能力 및 優性程度의 比較

Byung Tae Jun(田炳泰),Soo Yeon Cho(趙守衍),Kwon Yawl Chang(張權烈) 한국육종학회 1985 한국육종학회지 Vol.17 No.2

Inheritance of culm length, panicle length and number of panicle rice were studied from 9-parent partial diallel crosses at F₁ and F₂ generations in 1983-1984. Thecombining ability analysis showed that the GCA and SCA effects were significant for culm length, panicle length, and number of panicle, but GCA was greater than SCA. The effects of GCA and SCA were different from parents, cross, generation and characters. Both additive and dominant gene actions were significant for culm length, panicle length, and number of panicle, Howver, additive effects was greater than dominant effects.

水稻 量的形質의 遺傳에 관한 硏究 Ⅷ. 벼種字의 低溫發芽性 遺傳

Byung Tae Jun(田炳泰),Jung Il Kim(金靜逸),Soo Yeon Cho(趙守衍) 한국육종학회 1987 한국육종학회지 Vol.19 No.3

This experiment was carried out to obtain the basic data of inheritance for the low temperature germination which will be applied to the breeding programs of cold tolerance by using 7 low temperature germination varieties. They were crossed by diallel and checked for low temperature germination percentage and combining ability. The general combining ability(GCA) and specific combining ability(SCA) for low temperature germination by 7-parent diallel analysis showed highly significant respectively and GCA was higher than SCA. In case of GCA analysis, Seolagbyeo, IR20654-15-1 and Mjilyang 23 showed positive effect for the low temperature germination, but Hangangchalbyeo, Taebaegbyeo, Cheongcheongyeo, and Seonambyeo showed negative effect. There was no regular tendency for SCA, but the crosses which had Taebaegbyeo as female parent showed positive effect to low temperature germination in case of SCA studies. The varieties which had relatively good germination under 12℃ air temperature were Seolagbyeo IR20654-RRR-15-123 in order, but poor germination varieties were Cheongcheongbyeo and Seonambyeo. Almost all of the cross showed continuous variation for the distributions of germination grains at low temperature in F₂ generation by days after sowing and the crosses which had Milyang 23 or Seoalgbyeo as parentage showed transgressive segregation toward good germination percentage.

嶺南地域 乾畓直播裁培適應 벼 品種選定

Byung Tae Jun(田炳泰),Sae Jun Yang(楊世準),Un Sang Yeo(呂運尙),Kee Yeong Lee(李基榮),Soo Kwan Lee(李壽寬) 한국육종학회 1993 한국육종학회지 Vol.25 No.4

This experiment was conducted to screen the adaptability of Korean rice cultivars to direct seeding on dry soil at Yeongnam Crop Experiment Station in 1992. Twelve rice cultivars, two of early maturity. four of medium maturity and six of medium-late maturity, were seeded from May 1 to June 20 with ten-day interval. Based on the minimum cumulative temperature for ripening, 760℃ for forty days after rice heading, the critical late seeding date were June 20 for early maturity varieties, June 10 for medium maturity ones, and May 30 for medium-late maturity ones. Especially, the critical late seeding date for Tamjiribyeo, a medium-late maturity rice cultivar, was May 20. Changes in agronomic characters by direct seeding as compared with transplanting should be checked on the basis of seeding date rather than transplanting date. There are no problems in germinability at fifteen days after seeding except Sangjubyeo, Hwaseongbyeo, although varietal difference of low temperature(15℃) germinability was clearly recognized at ten days after seeding. Degree of seedling emergence(1~9) at twenty days after May 1 seeding under the field condition was good in Dongjinbyeo, Yeongnambyeo, Tamjinbyeo, and Donghaebyeo, but it was relatively fair in Jinmibyeo, Hwaseongbyeo, and Ilpumbyeo. Seedling vigor at thirty five days after May 1 seeding also was very vigorous in Dongjinbyeo, but it was normal in Ilpumbyeo. Incidence degree of lodging in the field was more severe in direct seeding than in transplanting. Donghaebyyeo, Yeongnambyeo and Ilpumbyeo were evaluated as lodging tolerant cultivars. Significant negative correlation coefficient between field lodging and breaking strength was recognized regardless of cultivation method. Milled rice yield by direct seeding was nearly 94.8% level of that by transplanting at the same seeding time of May 10. The critical late seeding time of direct-seeded cultivation based on heading date can be explained by the relationship between the seeding time and grain yield. Donghaebyeo, Yeongnambyeo, Ilpumbyeo, Dongjinbyeo, and Tamjinbyeo were recognized as considerably adaptable rice cultivars to direct-seeded cultivation in southeastern plain area by the lodging tolerance and relative level of grain yield compared with transplanting.

水稻品種 水原334號와 水原341號의 百葉枯病 抵抗性 遺傳

Byung Tae Jun(田炳泰),Tae Soon Kwak(郭泰淳),Soo Yeon Cho(趙守衍) 한국육종학회 1988 한국육종학회지 Vol.20 No.3

For determining the inheritance of bacterial leaf blight(BLB) resistance to representative three isolates, 860485(K₁), 860474(K₂) and 860468(K₃) from Korea, Suweon 334 and Suweon 341 which are resistant varieties were crossed with susceptible variety, Jinbu 5. The F₁, and F₂ plants were tested for their reactions to the 860485, 860474 and 860468 isolate at their maximum tillering stage. BLB resistance to 860485 isolate was controlled by two dominant genes of Suweon 334, but by a single dominant gene of Suweon 341 in case of scoring date August 4 and August 14, respectively. BLB resistance to 860474 isolate was controlled by complementary genes of Suweon 334 and Suweon 341 in case of scoring date August 4 and August 14, respectively except for scoring date August 14 of Suweon 341/Jinbu 5 cross combination. BLB resistance to 860468 isolate was controlled by a single dominant gene of Suweon 334 and Suweon 341 in case of scoring date August 4. However, resistance to 860468 isolate on scoring date August 14 influcenced by complementary genes of Suweon 334 and Suweon 341.

水稻品種의 二面交雜에 의한 量的形質의 遺傳分析 Ⅰ. 자포니카 水稻品種의 雜種强勢 및 主要形質間의 相關

Tae Soon Kwak(郭泰淳),Byung Tae Jun(田炳泰),Soo Yeon Cho(趙守衍),Rae Kyeong Park(朴來敬) 한국육종학회 1988 한국육종학회지 Vol.20 No.2

This work has been performed to get the useful informations regarding the degree of heterosis and correlations between quantitative characters related to sink and source in Japonica rice varieties. Heterosis for days to flowering in F1 generation was mostly significant to late maturing, however, cross combination in which Ishiokamochi 7 crossed with Shin # 2 showed hetersois for days to flowering to early maturing. Degree of heterosis for culm length in F1 was greater than that of in F2 generation and the direction of heterosis and heterobeltiosis was tall culm length in case of cross combination in which Ishiokamochi 7 crossed with Samnambyeo. Almost all F1 generation in which had Ishiokamochi 7 as parent showed high heterosis for the number of panicles, 1000 grain weight and number of spikelets per panicle. Degree of heterosis to the productivity score in F₁, generation mostly showed high and positive direction. Significant positive heterosis and heterobeltiosis for leaf area index was found in the cross combination involved Ishiokamochi 7, Shin # 2 and Samnambyeo as their parent. In general, genotypic correlation coefficient was higher than environmental correlation coefficient and characters such as 1000 grain weight, number of spikelets per panicle and productivity score showed highly significant genotypic correlation with yield. The genotypic, phenotypic and environmental correlation coefficients between dry matter and harvest index in F1 generation showed highly negative significant. Significant positive genotypic and phenotypic correlation were found for crop growth rate and relative growth rate.

水稻品種의 二面交雜에 依한 量的形質의 遺傳分析 Ⅱ. 자포니카 水稻品種의 收量 및 收量構成形質에 대한 組合能力

Tae Soon Kwak(郭泰淳),Byung Tae Jun(田炳泰),Soo Yeon Cho(趙守衍),Rae Kyeong Park(朴來敬) 한국육종학회 1988 한국육종학회지 Vol.20 No.4

The general combining ability and specific combining ability of yield and yield components such as no.of panicles per hill, no.of spikelets per panicle, 1000-grain weight, and grain ripened ratio were studied on F₁ and F₂ generations of 15 crosses from the partial diallel cross of 6 Japonica rice varieties. The effects of GCA and SCA were significant for yield and yield component characters and the GCA of yield component characters was greater than SCA, but SCA of yield was greater than GCA. The effects of GCA and SCA were different from generations and characters. The GCA and SCA effects of yield and no.of spikelets per panicle were quite great. Rice varieties, RAC 3 and Samnambyeo as parents were quite effective for increasement of no of spikelets per panicle but crosses which had Shin 2 as female parent showed positive greater SCA effects. There were significant correlations between generations in variance and ranks of parental GCA effects of no.of panicles per hill, but non-significant to yield which has consisted by multiple characters such as yield component characters.

이면교잡에 의한 수도의 양적형질의 유전분포 제3보 일단조합능력과 특정조합능력의 세대별 차이

장권열,전병태,곽용호,Kwon-Yawl Chang,Byung-Tae Jun,Yong-Ho Kwak 한국작물학회 1978 Korean journal of crop science Vol.23 No.2

Degree of dominance for culm length, panicle numbers, flag leaf fwidth and panicle weight showed higher values than the others, and additive protions in variance components were more greater than heterosis protions for many characters. Average gene frequency showed low values for all characters, GCA were more greater than SCA, and the effects of GCA and SCA were differ from parents, crosses, generation and characters.

이면교잡에 의한 수도의 양적형질의 유전분포 제2보 각형질별 세대에 따른 유전자 분포상태의 차이

장권열,전병태,곽용호,Kwon-Yawl Chang,Byung-Tae Jun,Yong-Ho Kwak 한국작물학회 1978 Korean journal of crop science Vol.23 No.2

수도의 7개품종과 이들 품종을 교배친으로 하여 9개형질에 대한 7$\times$7, 5$\times$5이면교잡의 경우에 $F_1$ 세대와 $F_2$세대에 따라서 각형질에 관여하는 유전자의 분포상태를 본바 그 결과를 요약하면 다음과 같다. 1. 출수일수, 수장, 수수, 지엽장, 천립중의 5개형질은 7$\times$7, 5$\times$5 이면교잡의 $F_1$세대에서 불완전우성을 나타내었다. 2. 간장, 지엽폭, 추출도는 $F_1$세대에서 초우성을 나타내었고 수중에 있어서는 $F_2$ 세대에서 초우성을 나타내었다. 3. 간장은 $F_1$ 세대에서는 초우성이었으나 $F_2$ 세대에서는 불완전우성으로 나타내었고 대체로 불완전우성을 나타낸 형질에 있어서도 교배조합에 따라서 교배친에 따라서 초우성을 나타낸 조합이 많으며, 특히 수중의 $F_2$ 세대에서 초우성을 나타낼 본실험의 결과는 수도의 다수품종 육성을 위하여는 교배조합의 결정이 매우 중요하고, 다수품종의 육성의 가능성을 말해주고 있는 것이 다. Partial dominance was exhibited by flowering(heading), panicle length, panicle numbers, $F_1$ag leaf length, 1000 kernel weight in $F_1$ and $F_2$ hybrids by 7 \times 7 and 5 \times 5 diallel crosses. Over dominance was exhibited by culm length, flag leaf width, appearance degree of panicle in $F_1$ generation of the crosses, and also over dominance was exhibited by kernel weight in $F_2$ generation of the crosses.

이면교잡에 의한 수도의 양적형질의 유전분포 제 1 보 세대별 각형질의 Heterosis정도의 차이

장권열,전병태,곽용호,Kwon-Yawl Chang,Byung-Tae Jun,Yong-Ho Kwak 한국작물학회 1978 Korean journal of crop science Vol.23 No.2

7 X 7이면교잡에 의한 수도의 양적형질에 대한 Heterosis정도와 조합능력을 검정하기 위하여 몇가지 실험을 한바 그 결과를 요약하면 다음과 같다. 1. 출수일수에 있어서는 교배친의 평균치에 비하여 F_1세대의 전조합의 평균치가 105%의 Heterosis정도를 보이고 BL-1과 밀양1005의 품종이 교배친으로 되어 있는 $_{x}\textrm{F}_1세대에서는 현저한 Heterosis를 나타내었다. 2. 간장에 있어서는 교배조합에 따라서 Heterosis 정도가 다르나 장간종인 Columbia II와 단간종인 Waito가 교배친으로 되어 있는 조합은 Heterosis정도가 높고, Waito가 교배친으로 되어 있는 $_{x}\textrm{F}_1세대에서는 초우성이 나타났으며, 어느조합에 있어서도 $_{x}\textrm{F}_2세대보다 $_{x}\textrm{F}_1세대에서 Heterosis정도가 크게 나타났다. 3. 수장에 있어서도 $_{x}\textrm{F}_1세대에서의 Heterosis정도가 $_{x}\textrm{F}_2세대보다 현저하고 Columbia II, Waito, BL-1, 밀양1005, YR675-153-2-2등이 교배친으로 되어 있는 조합에서는 Heterosis정도가 현저하고 또한 이들 조합의 $_{x}\textrm{F}_1세대에서는 대부분 초우성으로 나타났다. 4. 수수에 었어서도 $_{x}\textrm{F}_1세대에서의 Heterosis정도가 $_{x}\textrm{F}_2세대보다 현저하고, BL-1, Waito, YR67S-153-2-2, 밀양1005가 교배친으로 되어 있는 $_{x}\textrm{F}_1세대와 BL-1과 Waito가 교배친으로 되어 있는 $_{x}\textrm{F}_2세대에서 초우성으로 나타난 조합이 많았다. 5. 지엽장에 있어서는 조합에 따라 Heterosis 정도가 매우 다르나 BL-1과 Waito가 교배친으로 되어 있는 $_{x}\textrm{F}_1, $_{x}\textrm{F}_2세대에서 Heterosis정도가 높고, Waito가 교배친으로 되어 있는 $_{x}\textrm{F}_1세대에서는 초우성으로 나타났다. 6. 지엽폭도 지엽장과 같이 BL-1과 Waito가 교배친으로 되어 있는 조합에 한해서 Heterosis정도가 현저하다. 7. 추출도는 어느 조합에 있어서도 현저한 Heterosis 정도를 나타내었으며, $_{x}\textrm{F}_1세대에서 현저한 초우성을 나타내었다. 8. 천입중에 대한 Heterosis정도는 어느 조합에 있어서도 현저하지 아니하였다. 9. $_{x}\textrm{F}_2세대에서의 입중의 Heterosis정도는 영남조생과 Waito가 교배친으로 되어 있는 조합에 한해서 현저한 Heterosis를 보이고 그중에서도 영남조생\timesIR24 영남조생 \timesColumb II에서는 초우성을 나타내었다 7 parent varieties and 21 $_{x}\textrm{F}_1 and $_{x}\textrm{F}_2 hybrids from 7 X 7 partial diallel crosses were used as the materials, and degree of heterosis was studied in 9 agronomic characters of rice. Degree of heterosis was more remarkable in $_{x}\textrm{F}_1 hybrids than $_{x}\textrm{F}_2 hybrids. and significant differences were showed in many hybrid generations. and also over dominance could be shoo wed in eight characters except 1000 kernel weight of rice.

벼 葯培養에 관한 硏究 Ⅶ. colchicine 處理에 의한 半數體의 染色體倍加

Seung Yeob Lee(李承燁),Young Tae Lee(李暎泰),Hyun Soon Kim(金賢順),Hyun Tak Shin(申鉉卓),Byung Tae Jun(田炳泰) 한국육종학회 1990 한국육종학회지 Vol.22 No.4

To improve the diploidization efficiency of haploid plants derived from rice anther culture, rice plants which were regenerated from the anther culture of Hwacheongbyeo and F₁s of 35 crosses were used for the materials. Haploid plants, obtained from the ratoon culture, were used for investigating optimum colchicine concentration, continuance of colchicine activity, proper plant stage of treatment and adequate treatment duration. In other way, haploid plantlets which were discriminated from spontaneous diploid by the macroscopic appearance of plantlet vigorousity were treated with 0.1% colchicine just after the hardening of regenerated plantlets(3-to 5-leaf stage). The results were summerized as follows ; Frequency of the haploid of plants regenerated from anther culture was 67% and the frequency of spontaneous diploidization from the ratoon culture of haploids was very low(0.6%). Plant survival rate was decreased in higher concentration and longer time by colchicine toxicity whereas the frequency of diploidization was increased. The activity of colchicine solution(0.1%) on diploidization was the highest till 6 hours after colchicine treatment. When haploid plants were treated at 3-to 5-leaf stage for 24 firs. at 30℃ with a solution of 0.1% colchicine, the fequency of diploidization with doubled sector was the most effective as 79%. The probability of ploidy prediction of plantlets, divided by plantlet vigor at 3-to 5-leaf stage, was about 80% and diploidization rate was 86.5% which was higher than ratoon culture. Accordingly, this method largely abridged the effort of conchicine treatment.