• Title/Summary/Keyword: winter habit

Search Result 76, Processing Time 0.03 seconds

Growth characteristics and Productivity of Italian Ryegrass (Lolium multiflorum Lam.) New Variety, 'Green Call' (이탈리안 라이그라스 신품종 '그린콜'의 생육특성과 수량성)

  • Ji, Hee Chung;Whang, Tae Young;Lee, Ki-Won;Kim, Won Ho;Woo, Jae Hoon;Hong, Ki Hung;Choe, Kuh Wann
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.38 no.4
    • /
    • pp.247-252
    • /
    • 2018
  • This experiment was carried out to breed a very early maturing variety of Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forage Crops Division, National Institute of Animal Science, RDA, Cheonan from 2015 to 2017. New variety of Ryegrass, 'Green Call' is a diploid variety with green in leaf color and has semi-erect growth habit in late autumn and erect growth habit in early spring, 'Green Call' was on April 25 in heading date as a early-maturing variety. Also 'Green Call' was narrower by 2 mm in flag leaf width, longer by 1.3 cm in flag leaf length and shorter by 5 cm in plant height than those of control variety, 'Florida 80', respectively. 'Green Call' was also thicker by 0.14 mm in stem thickness and strong in winter hardness. Dry matter (DM) yield (11,592 kg/ha) of 'Green Call' was similar to that of 'Florida 80'. Total digestible nutrient (TDN), crude protein (CP) and relative feed value (RFV) of 'Green Call' were 60.8, 10.3 and 96.7 % which are 2.1, 1.1, 6.9 % higher than those of 'Florida 80', respectively. Acid detergent fiber (ADF) and neutral detergent fiber (NDF) of 'Green Call' were 35.5 and 58.9 % which are 2.7 and 2.3 % lower than those of 'Florida 80', respectively.

Growth Characteristics and Productivity of New Orchardgrass(Dactylis glomerata L.) Variety "Korditwo" (오차드그라스 신품종 "코디투"의 생육특성과 수량성)

  • Ji, Hee-Chung;Choi, Gi-Jun;Sung, Byung-Ryul;Seo, Sung;Kim, Ki-Young;Lee, Joung-Kyong;Kim, Won-Ho;Park, Hyung-Soo;Moon, Chung-Sup
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.28 no.1
    • /
    • pp.1-6
    • /
    • 2008
  • Korditwo is a new orchardgrass(Dactylis glomerata L.) variety developed by the National Institute of Animal Science(NIAS) in 2005. To develope the new variety of orchardgrass, 5 superior clones, Dg8533, Dg9518, EDg9133, U8504 and U8519, were selected and polycrossed for seed production. That synthetic variety was designated newly as "Korditwo", and it's agronomic growth characteristics and forage productivity were examined at Suwon from 2001 to 2002, and regional yield trials were conducted in Suwon, Pyungchang, Youngju, Iksan, and Jeju from 2003 to 2005, respectively. "Korditwo" showed medium type growth habit in fall and spring and short in length of flag leaf and upper internode. Plant height of "Korditwo" was similar to that of standard variety, "Ambassador" and heading date was 4 days later than 14th May compared to Ambassador. Characteristics such as winter hardiness, lodging tolerance, disease resistance of "Korditwo" were stronger or better than those of Ambassador, specially in winter hardiness and lodging tolerance. "Korditwo" showed 10% higher dry matter yield(11.3 ton/ha) compared to Amabassador. Nutritive value was appeared to be similar in both varieties.

Studies on Growth Characteristics and Shallow Green-Roof Systems of Sedum album L. Introduced in Korea (국내에 도입된 Sedum album L.의 생육 특성 및 저토심 옥상 녹화 시스템에 관한 연구)

  • Kim In-Hye;Huh Moo-Ryong;Huh Keun-Young
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.33 no.5 s.112
    • /
    • pp.69-82
    • /
    • 2005
  • These studies were carried out (1) to investigate the growth characteristics of Sedum album L. in the field, (2) to propose a suitable shallow peen roof system for this plant, and (3) to evaluate plant growth in the proposed system over the long term. The growth characteristics, such as morphological properties, growth habit, shade tolerance, and flowering, were surveyed. In experimental shallow green-roof systems, the effects of drainage type, substrate type, and soil depth on plant growth were investigated. Then drought tolerance was investigated. After planting Sedum album L. in the proposed system survival rate, cover, and resistance to insects, heal and cold were evaluated for about 2 years. The results of these studies are summarized below. 1. In the field, the aboveground part of Sedum album L. did not die back during the winter. Plant height was 4$\sim$7 cm. Roots were distributed to a depth of 5$\sim$7 cm. Sedum album L. is a compact ground-cover plant that spreads vigorously. Shading condition of less than $30\%$ of full sunlight didn't cause any trouble, but shading conditions above $87\%$ made the shape of the shoots and leaves abnormal. The plant bloomed from June to August and had a rather large compound umbel of white, star-shaped flowers. 2. Two systems, a drainage-blend-10 cm soil depth and a reservoir$\cdot$drainage-blend-15 cm soil depth, performed best in terms of cover, fresh weight, and dry weight. The first has an advantage for green roofs because it is lighter than the latter. 3. In drainage-blend-10 m soil depth and modified reservoir · drainage-blend-10 cm soil depth system no plants died for about 4 months after stopping the irrigation. The visual quality of the latter system was above 5 for 4 months and that of the former was under 5 after 2 months. In the field, however, the drought tolerance of Sedum album L. grown in the former would be enough to withstand the dry season. Considering the urban ecosystem and the importance of healthy growth the modified reservoir $\cdot$ drainage-blend-10 cm soil depth system was finally recommended. This system was composed of a 4 cm thick drainage layer and drain outlets placed at a height of 2.5 cm. 4. In the proposed system, the survival rate was $100\%$, and there was no injury induced by insects and heat. The leaf density decreased a little in winter. Cover increased throughout the year. Sedum album L. was planted with a cover of 72$cm^{2}$ on 3 April 2003; on 16 June 2003 and 15 June 2004, cover was $132.66\pm$5.87 $cm^{2}$(1.8 times) and $886.98\pm$63.51 $cm^{2}$(12.3 times), respectively.

Feeding Habits of Korean Torrent Catfish, Liobagrus andersoni in a Tributary of the Namhan River, Korea (남한강 지류에 서식하는 퉁가리(Liobagrus andersoni)의 식성)

  • Yoon, Hee-Nam;Kim, Jong-Myung;Bae, Yang-Seop;Chae, Byung-Soo
    • Korean Journal of Ichthyology
    • /
    • v.19 no.3
    • /
    • pp.236-245
    • /
    • 2007
  • Feeding habits of Liobagrus andersoni were investigated in a tributary of the Namhan river from October 2005 to October 2006. L. andersoni was considered as an entirely bottom-feeding carnivore based on it's stomach contents. Because, the diet of L. andersoni was mainly aquatic insect such as Ephemeroptera, Trichoptera, Diptera. The most important prey was Ephemeroptera species. Small sized individuals (<50 mm SL) fed mainly on small prey organisms such as Baetis. However, larger Ephemeroptera and Trichoptera were heavily selected with increasing fish size. The relative proportion of food items was changed with season. The prey materials were more various at summer and autumn than winter. L. andersoni eaten Ephemeroptera intensively in spring and summer but eaten Trichoptera and Chironomidae in winter. Feeding activity of L. andersoni was started after sunset and was most active at midnight, but the activity was reduced after sunrise and during day period. So it was considered that L. andersoni was a nocturnal stalkers.

A Study on the Formative Years of Le Corbusier -La Chaux-de-Fonds, 1887-1917- (르 꼬르뷔제의 형성기에 관한 연구 - 라쇼드퐁 시절, 1887-1917 -)

  • Ryu, Jeon-Hee
    • Journal of architectural history
    • /
    • v.7 no.3 s.16
    • /
    • pp.151-170
    • /
    • 1998
  • This study is about Le Corbusier's early years of loarning and training at La Chaux-de-Fonds. It is an attempt to show how Le Corbusier's groundwork was laid which characterize his work throughout the life. Charles Edouard Jeanneret was trained as a watch engraver and wished to be a painter. C. L'Eplattenier was to play a decisive role in shaping the young introspective boy's future. He encouraged Jeanneret's habit of the close study and observation of nature. Jeanneret was not the product of an established school, but instead made the unusual choice of educating himself. He found two indispensible sources of inspiration in study the past and in contemplating nature. His four years of self-education consisted of extensive reading, summer travels and winter layovers in larger cities-Vienna, Paris, Berlin-while sketching in museums or apprenticing local architects-Pellet, Behrens-. All these impressions then blended together to become part of a comprehensive source book of knowledge and imagination of the later Le Corbusier. A largely self-taught man, he never stopped making notes, drawing and writing, always aspiring to a clearer understanding of the meaning and underlying principles of objects and architecture. Jeanneret's five villas in La Chaux-de-Fonds are barometers which show the sequences of his development and change as an architect. In 1917, being thirty, he uprooted himself from his hometown to get a wider range of opportunities and moved to Paris. By that time Jeanneret was almost ready to blossom into Le Corbusier It was during this formative years of his life that Le Corbusier established the working method, mind-set and philosophical basis that determined the course of an architect in the making.

  • PDF

A Cold-Tolerant and High-Yielding Italian Ryegrass (Lolium multiflorum L.) New Variety "Hwasan 101" (내한 다수성 이탈리안 라이그라스 신품종 "화산 101호")

  • 최기준;임용우;김기용;최순호;성병렬;김원호;신동은;임영철
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.20 no.1
    • /
    • pp.1-6
    • /
    • 2000
  • Improvement of cold-tolerance of Italian ryegrass(Lo1ium multiflorum L.) is an important breeding objectivefor enlargement of cultivation area in Korea. To develop the cold-tolerant variety of Italian ryegrass,cold-tolerant clones survived under - 13- - 14$^{\circ}$C of minimum average air temperature in January wereselected in the area of Dun Nae, Kwangwon Province. The 5 lines of Italian ryegrass clones selected werepolycrossed for seed production. Synthetic seeds were examined on growth characters and forage productionsin Suwon from 1996 to 1998, in Unbong 1997 and in Younchun 1998, respectively. The growth charactersand forage productions of Italian ryegrass variety named as "Hwasan 101" were summarized as follow ;ltalian ryegrass variety, Hwasan 101 was tetraploid and showed semi-prostrate growth habit in autumn andwas not only dark green in leaf color and broad in flag leaf width but also excellent in leafiness. Also, itshowed low plant height at first heading date of 20th May and excellent lodging tolerance. Expecially,Hwasan 101 in all trial regions was 80 -90% of winter survivals that was higher than 60 -90% of Florida80 and Marshall varieties. Therefore we estimate that Hwasan 101 can be cultivated in regions that is higherthan -9$^{\circ}$C in minimum average air temperature and lower than 400m in sea level. In forage production ofHwasan 101, fresh weight and total digestible nutrient(TDN) yield were 66,940 and 6,551kghq and drymatter yield was 10,050kgha. In conclusion, Italian ryegrass, Hwasan 101 was medium and late maturingvariety but excellent in cold-tolerance, lodging-tolerance, leafiness, and forage production.(Key words : Italian ryegrass, Cold tolerance, New variety)ian ryegrass, Cold tolerance, New variety)

  • PDF

Characterization of a new brown commercial strain "Garlmoe" of Flammulina velutipes developed by crossing between wild collected strains (야생수집균주간 교잡으로 육성된 팽이버섯 갈색 신품종 '갈뫼'의 특성)

  • Kong, Won-Sik;Yoo, Young-Bok;Jhune, Chang-Sung;Jang, Who-Bong;Choi, Jae-Sun;Kim, Kwang-Ho
    • Journal of Mushroom
    • /
    • v.6 no.3_4
    • /
    • pp.115-120
    • /
    • 2008
  • A new commercial strain 'Garlmoe' was developed by crossing monokaryons from selected wild strains. The optimal temperature of mycelial growth was $25^{\circ}C$ but it needed to adjust to $16{\sim}18^{\circ}C$ when incubated at the bottle cultivation. The optimal temperatures of fruiting body initiation and development were almost same to others like as $14^{\circ}C$ and $7{\sim}10^{\circ}C$, respectively. The color of 'Garlmoe' was typical to wild winter mushroom, that is, pileus was brown and lower part of stipe was dark brown. The surface on pileus of 'Garlmoe' was sticky 'Garlmoe' was a good commercial strain with high quality and high productivity characterized as quite even budding habit, straight and strong stipes and convex type pilei. The taste of this variety was very excellent because of better chewing feeling than white ones.

  • PDF

An Assessment of Korean Housewives Exposed to Polycyclic Aromatic Hydrocabons(PAHs) in Indoor Air (일부 주부의 실내공기 중 PAHs 노출에 관한 연구)

  • Lee, Tae-Hyung;Kim, Yun-Sin;Son, Bu-Soon
    • Journal of Environmental Science International
    • /
    • v.16 no.3
    • /
    • pp.323-331
    • /
    • 2007
  • Polycyclic aromatic hydrocarbons (PAHs) are well known for strong carcinogen. However, the human exposure analysis of PAHs is quite difficult and unreliable because of hard for estimation of actual expose dose. Then urinary 1-hydroxypyrene (1-OHP) has been a biological marker of exposure to PAHs. The purpose of this study was to investigate total amount from exposure to PAHs soused by indoor occupational exposure, and residence at Seoul metropolitan area and Kyeonggi province in Korea. Thirty-five housewives were included in this study from April 2003 through February 2004. Dietary habit and general characteristics such as age, type of building, existence of passive smoking, period of residence, fuel type for heating and ventilation type were obtained by self administered questionnaire. Urine samples were collected at morning and freeze quickly. Urinary creatinine was measured for converting into 24 hr urine. Concentration of the indoor PAHs was examined by NIOSH method number 5506. Urinary 1-OHP and PAHs were analysed by HPLC. Correlation coefficient between urinary 1-OHP levels and pyrene concentration of indoor air was 0.66 and statistically significant(P<0.01). The difference of urinary 1-OHP level due to dietary habits were not significant. Urinary 1-OHP level of Spring, Summer, Autumn, and Winter were $0.21{\pm}0.12,\;0.10{\pm}0.17,\;0.16{\pm}0.12,\;0.17{\pm}0.14{\mu}g/g$ cr, respectively. The arithmetic means of urinary 1-OHP for four season tee $0.16{\pm}0.14 {\mu}g/g$ cr. There was a trend that urinary 1-OHP level of residents who dwelling in apartment were higher compared with detached home, Comparison of 1-OHP level between heating by kerosene and LPG, Much higher gas heating type than kerosene type (P<0.05). This result implies that the urinary 1-OHP can be applied as the PAHs exposure indices.

Lilium longiflorum 'Charm' as a F1 Hybrid for Pot Plant (종자번식 일대잡종 분화용 나팔나리(Lilium longiflorum) 'Charm' 육성)

  • Song, Cheon Young
    • FLOWER RESEARCH JOURNAL
    • /
    • v.16 no.4
    • /
    • pp.304-308
    • /
    • 2008
  • Lilium longiflorum 'Charm' as a $F_1$ hybrid cultivar was released by crossing inbred line '$L_2$-14' and '$L_2$-21' which were obtained from 5 self crosses originated from 'Nellie White', 'Ace' and 'Hinomoto'. The growth and flowering characteristics were evaluated in a greenhouse maintained at a minimum of $13^{\circ}C$ at night during winter in 2006 and 2007. The flower of 'Charm' is white color and horizontal-facing. The flower number of a plant and its diameter is 7.4 and 16.5 cm with 24.5 ornamental(flowering) days. The plant height is 60.3 cm with 70.3 number of leaves. The stem diameter and internode length is 1.2 cm and 1.1 cm, respectively, meaning the plant is compact and sturdy. And the number of seed per a capsule is 251.1. The results of these evaluation, therefore, suggest that seedling Lilium longiflorum 'Charm' can be used as a pot plant due to its short stems, many number of flowers per plant, long ornamental period, strong growth habit with many leaves and thick stem diameter.

The Order of Appetites in Early Modern England: Shakespeare's Signs of Food and Social Mobility (초기 근대 영국의 미각의 질서 -셰익스피어 희곡의 음식 기호와 사회적 유동성)

  • Roh, Seung-Hee
    • Journal of English Language & Literature
    • /
    • v.57 no.1
    • /
    • pp.171-190
    • /
    • 2011
  • Shakespeare's plays deploy an interesting array of food signs in a way to illuminate the historical process of what Stephen Mennell has described as "the civilizing of appetite"-a process in which the changes of food choices and eating habits took place in response to the changes in people's way of life and personality structure over the long-term modern period since the middle ages. Shakespeare's plays suggest that the civilizing of appetite in early modern England was heavily affected by the forces of social mobility as well as the nascent market economy. The Capulets' costly preparation of Juliet's wedding banquet is a showcase of conspicuous consumption which was a structural necessity for the ruling class in Shakespeare's time. Some fifteen years later, the same kinds of foodstuffs are included in a shepherd's shopping list for the sheepshearing festival in Winter's Tale. This is a significant coincidence to prove that food was an important source of emulation and contest among different social classes; and that the rich diet of the upper class gave impetus to social mobility. The Elizabethan subjects, especially among the elite noblemen, were interpellated by the ideology of food that equated the quality of food and the eater's social identity. Faced with bankruptcy as a consequence of his extravagant consumption habit, Bassanio in The Merchant of Venice testifies to the gripping ideology of food onto early modern people, while Poor Tom in King Lear presents a comic parody of the rich people's conspicuous waste. Also in Coriolanus and The Merry Wives of Winsor, Shakespeare uses food as a metaphor for class-motivated social struggles.