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麥類의 出穗期에 關한 硏究 Ⅴ. 韓半島 大麥 在來 및 育成品種의 春ㆍ秋播性 遺傳分析
Yong Woong Ha(河龍雄) 한국육종학회 1989 한국육종학회지 Vol.21 No.2
To study the inheritance of the gene for the growth habit of barley cultivars, F₁ and F₂ generations of the crosses between 61 spring barley varieties which included 53 Korean native varieties, and 8 recommended varieties and two winter barley varieties were grown in the greenhouse with 15℃-20℃ (night-day) and 24 hour-day length condition, and date of flag-leaf emergence were counted. Spring habit was controlled by the genes sh, Sh₂ and Sh₃, which are allelic to Sh, sh₂ and sh₃, respectively, controling winter habit. The genes for the spring habit were dominant over the gene for winter habit. Among 53 Korean Native varieties, 16 varieties showed to have one pair of dominant gene for spring habit or Sh₂Sh₂, another 16 varieties also appeared to have one pair of recessive genes for winter habit or shsh, only one variety had two pairs of dominant genes or Sh₂Sh₂Sh₃Sh₃ and 20 varieties possessed both one pair of dominant and one pair of recessive genes or shshSh₂Sh₂. All of 8 recommended varieties including four of six row covered barley and four of two row malting barley were appeared to have one pair of recessive gene for winter habit or shsh.
RAPD를 이용한 보리×밀 속간교잡종의 보리유전자 도입 확인
임용우(Yong Woo Rim),홍병희(Byung Hee Hong),남중현(Jung Hyun Nam),박문웅(Moon Woong Park),하용웅(Yong Woong Ha),박광근(Kwang Geun Park),신정섭(Jeong Sheop Shin) 한국육종학회 1995 한국육종학회지 Vol.27 No.4
Random amplified polymorphic DNA(RAPD) was employed as a genetic marker in order to verify the genetic introgression of barley(cv. Manker 16) to barley × wheat backcross(BC₂F₁) lines. In RAPD analysis of 12 random primers tested, four of the 14 progenies obtained from barley × wheat backcrosses expressed band unique only to barley using primer number 225 (5’-CGA CTC ACA G-3’), and all progenies except H6-2 and H6-3 expressed bands unique only to barley using primer number 274(5’-GTT CCC GAG T-3’). All progenies of the BC₂F₁ lines appeared to have at least one of barley polymorphic patterns through RAPD analysis. Somatic chromosome numbers of BC₂F₁ lines ranged between 46 to 49 and appeared to have 4 to 7 chromosomes of barley. Use of RAPD as a genetic marker for the detection of genetic introgression of barley in barley × wheat intergeneric hybrid derivatives was effective and useful.
小麥의 出穗後 日數에 따른 小穗段別 粒重의 品種間 差異
Byung Ryeol Sung(成炳列),Kyu Bok Youn(延圭復),Yong Woong Ha(河龍雄),Sang Yang Lee(李相陽) 한국육종학회 1988 한국육종학회지 Vol.20 No.1
This experiment was carried out to investigate the change of kernel weight and the position of spikelet with the highest kernel weight on the spike of wheat varieties at 25, 35 and 45 days after heading from Oct. 1985 to June 1986 in Suwon Korea. Among 14 varieties tested, Suwon 239, with the latest maturing time, has been highest kernel weight of 14.9g, followed by Olmil, Geurumil and Eunpamil at 25 days after heading. Increment of grain weight was the most between 26 and 35 days after heading. Geurumil and Milyang 26 have the hightest kernel weight increment of 25g and Milyang 25 has the lowest of 13g during this period. Between 36 and 45 days after heading, however, Milyang 25 has much grain weight increment of 15g, followed by Suwon 242, Suwon 241 and Tapdongmil while Eunpamil and Olmil have very little increment in this period. There are three patterns of grain filling process. First, Suwon 242 and Milyang 25 show slow and progressive grain filling pattern from early to late period. Second, Eunpamil, Olmil and Suwon 239 which have lightier kernel weight of 34 to 37g show rapid grain filling patteren, nearly completing accumulation process by 35 days after heading. Third, the other varieties show that most of accumulating process was made between 26 and 35 days after heading but some process was continued untill even later period. Highly positive quadratic regression coefficient was between the position of spikelet on the spike and kernel weight, thus upper and lower part of spike having lighter kernel and middle part of spike, heavier kernel which were in the 8th to 10th spikelet on the spike.
보리 奬勵品種의 主要農業形質에 대한 地域適應性 및 遺傳力
Sang Yang Lee(李相陽),Eun Sup Lee(李殷燮),Dong Hee Chung(鄭東熙),Jong Un Chun(千鍾殷),Yong Woong Ha(河龍雄),Byung Ryeol Sung(成炳列) 한국육종학회 1988 한국육종학회지 Vol.20 No.3
The performance stability and heritability of thirteen recommended barley cultivars grown at four sites in 1982 to 1983 were studied. Albori and Gangbori with a relatively high mean yield possessed high stability over a wide range of environments. The direct effects of number of spike most positively influenced yield, but those of number of spikelet and 1,000 grains weight were very low. The heritability values of heading and maturing dates, number of spikelet, and winter hardenss were high, but the valus of 1,000 grains weight was very low. The positive genotypic correlations were found for yield with heading and maturing dates, and number of spike, but the negative correlation with winter hardness.
밀 배유 전분·합성 효소(GBSS)의 특성과 찰밀 생산
홍병희,서용원,하용웅,박철수 高麗大學校自然資源科學硏究所 1997 自然資源科學硏究 Vol.5 No.-
Wheat(Triticum aestivum L.) endosperm starch has a unique characteristic that influence on gelatinization, pasting and retrogradation. The end-use quality of flour quality is determined by quality and quantity of starch. The content of amylose is one of the most important factors that are used for determining noodle quality. It's been known that good viscoelasticity of noodle can be obtained as lowering amylose content by imprving rheological properties of flous. In order to have high noodle quality, it is necessary to have wheats have los amylose content as well as high quality seed storage proteins which are known for influcing end-use quality. Recently, many researches on analyzing and granule bound starch synthase on analyzing and granule bound starch synthase (Waxy protein) are conducted throughout the country. Waxy protein or granule bound starch synthase is an important determinant of amylose content in wheat starch. It's molecular weight is about 61KDa and is encoded by the genes on the chromosome 7AS, 4AL and 7DS, i. e. Wx-Al, Wx-B1 and Wx-DI. In general, partial waxy mutants (mutants on one or two waxy locus/loci) resulted in low amylose content and high noodle quality. Since wheats with all three null waxy mutant have not been found. studies on producing waxy mutant by way of mating. mutation and genetic manipulation are undergoing. We have reviewed recent researches on some of the major factors that influence on noodle quality, starch properties and quantity of waxy protein. It is necessary to develop waxy wheats in the respect of producing high noodle quality wheat and riching human dietary.