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RISS 인기검색어
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- 저자 : 朴來敬(R.K.Park) (검색결과 5 건)
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보리의 雄性不稔을 利用한 循環選拔 Ⅱ. RSPYB-1 選拔系統의 特性과 收量構成要素
B.H. LEE(李奉鎬),D.Y. SUH(徐得龍),H.S. SUH(徐亨洙),R.K. PARK(朴來敬) 한국육종학회 1983 한국육종학회지 Vol.15 No.1
The selected lines in male sterile facilitated recurrent selection population RSPYB 1 of barley were compared to leading variety and analyzed by statistical method. Heading and maturing dates were later compared to leading variety Olbori, but culm length shorter to the variety. In yield components of selected lines in RSPYB 1 popluation, No. of grains per spike and N. of spikes per m² were higher than Olbori, however, 1000-grain weight lower than this variety. From the analysis of selection parameters, the follgwing method was recommended to select high yield lines in RSPYB 1 population. Selection performed by 1000-grain weight is to be effective ways for high yield lines considering in the high heritability and high positive direct effect for grain yield of that trait.
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B. H. Lee(李奉鎬),D. Y Suh(徐得龍),H. S. Suh(徐亨洙),Y. H. Chang(張映熙),R. K. Park(朴來敬) 한국육종학회 1984 한국육종학회지 Vol.16 No.1
The barley having accordion shaped spike was found at the Yeongnam Crop Experiment Station in 1979. This barley was named by YBG-ACS₁ (Yeongnam barley gennplasm-accordion spike 1.) The rachis internode length of this barley was 15.1㎜ and the streched spike length 21.2㎝ which is 4.8times longer than that of Oweolbori. The ratio of spike length to culm length was 29.4 % of YBG-ACS₁ comparing to 5.1% of Oweolbori. In the F₂ population of YEG-ACS₁ and Oweolbori cross, the segregating ratio of accordion rachis type was 13:3 for normal straight rachis: accordion rachis which resulted by controlling of suppressor gene, however the spike type segregated by the ratio of 9:3:3:1 for lax-type: normal-type: accordion type: compact-type which resulted by controlling of two independent genes. Broad sense heritability estimates for spike length was very high in lax type and accordion-type, while it was very low for normal-type and compact-type. Correlation analysis among the agronomic characters, significant positive correlations were observed between the spikes per plant and kernels per spike, and 1000kernel weight: in lax-type of spike. From the above results, YBG-ACS₁ of barley was expected as a very good breeding material for short-culm, long spike and large kernel of barley.
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