RISS 검색 - 국내학술지논문

무료
기관 내 무료
유료

내보내기
내책장담기
한글로보기

정확도순

내림차순

내림차순

10개씩 출력

1
Agronomic Characteristics of Introduced Triticales

Chang Hwan Cho,Seung Gil Yun,Kazuo Ataku,Taiki Yoshihira 韓國作物學會 1998 Korean journal of crop science Vol.43 No.1
- 원문보기 2
  ScienceON
  
  코리아스칼라
This study was conducted to obtain basic information on the development of new triticale cultivars with good quality and high productivity for soiling feed. Twelve cultivars introduced from Poland, Canada and two cultivars developed in Korea were planted in the experimental field at Ansong National University in 1995. Major growth traits and nutrient components for feed were measured and analyzed using principal component analysis and average linkage cluster analysis. 'Prego', 'Prag 46/3', and 'Clercal' were relatively high in forage yield. Most of forage nutrient contents except cellulose were higher in Prego, Clercal, and 'Cumulus' than other cultivars. Results of principal component analysis on 11 traits including forage yield and nutrient contents showed that 72.59% of total variation were explained by the first and second principal components. The Z1 had high correlation with the contents of forage nutrient components and Z2 with plant height, fresh, and dry weight. Fourteen cultivars were classified into 7 groups by multivariate analysis. Clercal and Prego in Group I could be useful source for the improvement of triticale as an important forage crop because they exhibited high productivity as well as high contents of nutrient components for feed.
2
Effect of Ensiling with Acremonium Cellulase, Lactic Acid Bacterial and Formic Acid on Tissue Structure of Timothy and Alfalfa

Asian, Aniwaru,Okamoto, M.,Yoshihira, T.,Ataku, K.,Narasaki, N. Asian Australasian Association of Animal Productio 1997 Animal Bioscience Vol.10 No.6
- 원문보기
The changes of tissue structure in timothy and alfalfa during ensiling process with silage additives; lactic acid bacteria, cellulase and formic acid, were observed with a video microscope. Stem samples were obtained from the second internode, and cut to divide into 2 pieces. One piece was for observation of ensiled material and the other was for silage. The latter piece was put into a nylon cloth bag, and ensiled with grass for 50 days in a small experimental silo Lignification of the plant tissues was checked by acid phloroglucinol. Natural silage fermentation resulted in some degradation of less lignified parenchyma in both plant species. However, lignified sclerenchyma and vascular bundles remained intact. The cellulase enhanced the degradation of parenchyma tissue, while the formic acid suppressed the degradation. The effect of lactobacillus was small. The percentage of remained cross sectional area of stem and the loss of NDF and ADF by silage fermentation confirmed the observation. High negative correlations were obtained between the remained area and loss of fibrous components during silage fermentation in both plants, and between the loss of fibrous components and in vitro dry matter digestibility in timothy but not in alfalfa.
3
Varietal classification of spring-triticale cultivars by agronomic and feed component traits

Seung Gil Yun(尹承吉),Kazuo Ataku(安宅一夫),Chang Hwan Cho(曺章煥),Taiki Yoshihira(義平大樹) 한국육종학회 1996 한국육종학회지 Vol.28 No.4
- 원문보기
- 복사/대출신청
This experiment was conducted to obtain information on various characteristics of triticale cultivars collected from overseas. Ten cultivars such as PRAG46/2, PHTSP Ⅰ/Ⅱ, GABO, S50RI, R70/2, BANJO, WAPITI, SUL-IN, TC-2 and Chuchuhomil were sown in the experimental field of Ansong National University in 1995, and their agronomic traits such as growth, yield, and feed value were examined. The triticale cultivars were classified by using principal component analysis on the basis of the agronomic characters examined. The triticale cultivars except Chunchuhomil were short stature. Leaves per plant in PRAG46/2 and GABO were numerous. Fresh and dry weight per plant were the highest in S50RI, GABO, and R70/2. PHTSP Ⅰ/Ⅱ showed the highest number of grains per plant and 1,000 grain weight, and therefore the highest grain yield. GABO, WAPITI, and SUL-IN showed the high content of starch, total sugar and crude protein. In the result of principal component analysis for fifteen characters, about 70% of total variation could be appreciated by the first two principal components, the first principal component was high loaded with plant height, fresh weight per plant, dry weight per plant, yield per plant and number of grains per plant, the second principal component with crude protein, potassium, calcium and magnesium content. Four varietal groups were classified by scatter diagram based on the first and second principal component scores. The second group of the four classified groups had three sub-groups. The first group, Chunchuhomil and PHTSP Ⅰ/Ⅱ, must be useful for breeding materials because those have better agronomic characters related to growth and yield than others.