• Title/Summary/Keyword: Herbage

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Some Characteristics of Interspecific and intergeneric Hybrid in Herbage Grasses (화본과 목초의 종속간잡종 Hybrid ryegrass 와 Festulolium의 생육특성)

  • 류종원;강정훈;한흥제;김웅배;박병훈
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.8 no.3
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    • pp.123-127
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    • 1988
  • Even though grass species are one of major importance in livestock industry, the response of intergeneric hybridization of Lolium and Festuca and interspecific hybridization of Lolium m.X Lolium p. to Korean climatic condition has not been adequately documented. This reasearch was conducted to examine the growth characteristics and dry matter yield of Festulolium, cv. Felopa and C-Stamm N 66 and hybrid ryegrass, cv. Maja and Tetilelite. 1. The early growth of Italian ryegrass was better than that of hybrid ryegrass and Festulolium. The plant length and helght of Italian ryegrass were longerltaller than those of hybrid ryegrass and Festulolium, but the number of tillers of Italian ryegrass was less than that of hybrid ryegrass and Festulolium. 2. Festulolium and hybrid ryegrass were more tolerant than Italian xyegrass to winter killing, 70-80% of tillers was survived. 3. After wintering, early spring growth of hybrid ryegrass and Festulolium were better than that of Italian ryegrass. Dry matter yield of hybrid ryegrass and Festulolium were more than that of Italian ryegrass. 4. Spikes of hybrid ryegrass and Festulolium (C-Stamm N66) were more than those of Italian ryegrass. Seed yield per $m^2$ of hybrid ryegrass and Italian ryegrass were almost same, but that of Festulolium was lower.

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Classification System of Collections and Distribution of Storages in Domestic Museum of Historic Relics (국내 역사계박물관의 소장자료 분류체계와 수장고 분류방안)

  • Jung, Sung-Wook
    • Korean Institute of Interior Design Journal
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    • v.15 no.2 s.55
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    • pp.138-149
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    • 2006
  • A museum's collections is fundamental factors to construct important activity of museum performing a role as cultural facility for learning, education and research. Therefore, conservation of collections through appropriate environments is previously established in step of planing a museum. Hereby, the purpose of this study is to set up the classification of collections and suggest a useful guidance of the storage division in a domestic museum. The results of this study are as follows. First, the main factors of deterioration are temperature and relative humidity in a museum storage, so classification of collections should be set up according to the objective standards of these factors. Second, the classification of collections can be performed as follow: the group for nonorganic materials subdivide metal, chinaware, earthenware, and jade stone, the group for organic materials subdivide leather hair paper fabric, bone horn shell mound and wood herbage and the group for composed materials. Third, for storage division of a domestic museum, basically has to consider that it is reasonable to plan $4{\sim}5$ storages in metal, jade stone, chinaware earthenware, and organic materials of $1{\sim}2$ units in case of a serial of history like archaeological, antique museum. And in case of folk relics of modern and contemporary arts are collected, it is reasonable to plan over 5 storages add composed materials to foregoing classification.

Effects of Lime and Phosphate Application on Mineral Content of Pasture Species in Volcanic Ash Soil of Cheju Island (제주 화산회토양에 석회 및 인산시용이 목초의 무인성분 함량에 미치는 영향)

  • 고서봉
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.12 no.3
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    • pp.138-144
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    • 1992
  • This study was carried out to determine the effects of lime(0, 300 kg/lOa) and phosphate application( 0, 20, 40, 80 kg/lOa) on mineral contents in herbage when 5 pasture species(orchardgrass, tall fescue, perennial ryegrass, redtop and ladino clover) were grown in pot of black(B) and very dark brown (VDB) volcanic ash soil of Cheju island, respectively. P content of orchardgrass and perennial ryegrass were higher in VDB than in B (P<0.01), but other grasses were not different between two soil types. Also, Ca and Mg contents of ladino clover were higher in VDB than in B, but other grasses were not different between two soil types. P and K contents were not affected by lime but Ca and Mg contents were increased by lime application in most of the pasture species. P, Ca, Mg and Na contents of all pasture spesies were increased by phosphate application(P< 0.Ol)except for Ca content of tall fescue. K and Fe content were decreased, with increasing phosphate application but Zn content was not changed by phosphate application.

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The Effects of Silvopastoral Practice on Changes of Understory Vegetation in a Japanese Larch (Larix kaempferi) Plantation

  • Kang, Sung Kee;Kim, Ji Hong
    • Journal of Korean Society of Forest Science
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    • v.96 no.2
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    • pp.151-159
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    • 2007
  • This study was conducted to investigate the effects of thinning on changes in stand characteristics and understory vegetation in a silvopasture practiced Japanese larch plantation in the Research Forest of Kangwon National University, Korea. Three different thinning intensities (64%, 35%, and control) were applied. Before and after thinning, the understory plant species increased its number from 48 (7 tree species, 7 shrubs species, 28 herbaceous species, and 6 woody climbers) to 100 (11 tree species, 15 shrub species, 67 herbaceous species, and 7 woody climbers). Thinning made plants invade easily on the forest floor, and plot A (325 stems/ha) had much higher number of undersory species than those Of plot B (575 stems/ha) and control plot (1,150 stems/ha). In three years after thinning, understory aboveground biomass (kg/ha) of herbs were 523 for control, 1,230 for plot B, and 1,288 for plot A. The canopy coverage had remarkable influence on the understory biomass production, resulting in relatively small amount of herbage production on control plot. The differences were statistically significant between thinned plots and unthinned plot, but there were no significant differences among the thinned plots (p<0.05).

Feeding Behaviour and Forage Nutrient Utilization by Goats on a Semi-Arid Reconstituted Silvipasture

  • Sharma, K.;Saini, A.L.;Singh, Nawab;Ogra, J.L.
    • Asian-Australasian Journal of Animal Sciences
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    • v.11 no.4
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    • pp.344-350
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    • 1998
  • Seasonal variations in the feeding behaviour of Jamunapari and Barbari goat breeds and their utilization of browse and grass nutrients was evaluated in a promising 3-tier (Leucaena leucocephala- Dichro-stachys nutan-Cenchrus ciliaris) reconstituted pasture during summer, rainy and winter season of the years 1987 and 1988. Distinct diurnal pattern of feeding was observed with both the breeds. Jamunapari goats spent significantly more time foraging during winter season (352.0 min) followed by summer (306.0 min) and least in rainy season (277.0 min). Though no significant difference was observed in the relative time spent by Barbari goats on grazing activities during summer and winter season, they spent significantly more (p < 0.05) time during rainy season as compared to other two seasons. The preference of grazing goats for certain plant species in relation to others was evident with distinct seasonal and breed variations. DM intake (g/kg $BW^{075}$) varied significantly (p < 0.05) from season to season. Among the browse. L. leucocephala was prefered over D. nutan irrespective of breed over the seasons. There was no breed difference in DM intake, or proximate composition and nutrient digestibility of ingested herbage. The available nutrient content of ingested forage was found sufficient to meet the nutrient requirements of adult goats for maintenance (NRC, 1981). The reconstituted 3-tier pasture dominated by plant species like L. leucocephala and Cenchrus species appear to have great potential to sustain the nutrient requirement of goats without adverse seasonal fluctuations in pasture quality.

Studies on the Interspecific and Intergeneric Hybridization in Herbage Grasses I. Effects of hybrid embryo age on callus formation and plant regeneration (화본과목초의 종.속간 잡종에 관한 연구 I. 교잡* 일령에 따른 Callus형성과 식물체재분화)

  • 박병훈;김명환
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.9 no.2
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    • pp.62-67
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    • 1989
  • A breeding program in progress at Suweon Livestock Experiment Station, RDA, involves the hybridization of italian ryegrass (Lm) and several leading forage grasses in an effort to combine the nutritive, productivity and palatability qualities of Lm with the adaptive and cold resistance qual; .les of several leading grasses. In order to study the fate of the hybridization between remotely related species, immatured hybrid embryos were cultured on media. The emasculated plants of Lm were Sikem and Tetrone. Reweille, 2n=14, of perennial ryegrass (Lp.), Forager, 2n=42, of tall fescue(Fa), First, 2n=14,of meadow fescue(Fp), Potomac, 2n=28, of orchardgrass(Dg), and Richmond, 2n=42, of timothy(Ph.p) were used as pollinators. Embryos were isolated on 4, 8, 12, 16, and 20 days after pollination and cultured them on modified Murashige and Skoog media. Calluses and plantlets have been obtained after 8 days old embryos crossing between $Lm{\times}Fa$, after 12 days embryos crossing between $Lm{\times}Lp$, Dg, and Ph.p, and after 16 days embryos crossing between $Lm{\times}Fp$. Both callus and shoot formation occurred on 6 % or less of the plated embryos of $Lm{\times}Fp$, Dg, and Ph.p. Embryoderived callus forming shoots have been obtained from 4 days old embryo crossing between $Lm{\times}Dg$ which has not successfully been done anywhere as far as we know. It means that hybrid plants of species without crossability can be obtained through the use of immatured embryo culture. Some of plated embryos developed directly shoots from embryos and the others shoot-forming callus. Cross between related species showed a high frequency of directly shoot formation from plated embryos and cross between remotely related species a high frequency of callus formation.

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Effect of N Levels on the Herbage Yield and Quality of Orchargrass-Red Clover Mixtures (Orchargrass-Red Clover 초지의 N 시비수준이 목초의 수량과 품질에 미치는 영향)

  • 이형석;이인덕;김운영
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.17 no.2
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    • pp.110-116
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    • 1997
  • The objective of this experiment was to suggest the optimum nitrogen fertilization level for orchardgrass(0G)- red clover(RC) mixtures. The field trials were conducted from 1993 to 1994 in order to evaluate the dry matter yield, botanical composition, chemical composition, dry matter digestibility(DMD), crude protein dry matter (CPDM) and digestible dry matter(DDM) yields on the nitrogen levels( 0, 50, 100, 150 and 300kgha). The results obtained were summarized as follows : 1. With increasing nitrogen levels, the DM yield of OG-RC mixttures significantly increased(P<0.05). The maximum total DM yield (7,964kgha) was obtained at N 300kgha level, However, there was no significant difference between N 150 and 300kgha. 2. With increasing the nitrogen levels, the botanical composition of OG in OG-RC mixttures was significantly increased(P< 0.05), whereas that of RC was remarkably decreased(P< 0.05). 3. The CP content was decreased by increasing nitrogen level(P

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A Comparison of Sward Types on the Intake and Nutrients Utilization of Herbage by Korean Native Goats (산양에 의한 초지유형별 목초의 섭취량 및 영양가치 이용성 비교)

  • 이형석;이인덕
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.15 no.4
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    • pp.297-302
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    • 1995
  • The objective of this experiment was to compare the dry matter intake, nutrients digestibility, nitrogen and energy utilization of hehage among the orchardgrass(OG) pure, orchardgrass(OG)-red clover(RC) mixture and complex rnixtures(C. mix) by Korean native goat. The results obtained were surnmerized as follows: 1. Crude protein(CP) content was higher in OG-RC and C. Mix diets than in OG pure diets(P<0.05). NDF content was higher in OG pure diets than other diets(P<0.05). But ADF, Lignin contents and gross energy did not differ among all diets. 2. Dry matter intake by Korean native goat tend to be high in OG-RC diets, and low in OG pure diets. But there was no significant difference statistically. Dry matter and cellular constituents digestibilities were higher for OG-RC and C. Mix diets than OG pure diet, but CP and NDF digestibilities were no significant difference among diets. 3. The amount of nitrogen consumed amount by Korean native goat in the OG-RC diet was higher than other diets. But, due to largely relative urinary and fecal nitrogen loss, Apparrently digested nitrogen and retained nitrogen percents were not significant difference among diets. 4. The amount of energy consumed by Korean native goat in OG-RC diet was higher than other diets. But, due to largely relative urinary and fecal energy loss, digestable energy percent was lower than C. Mix diets. But.metabolic energy percent was no significant difference among diets. Therefore, there was no significant differences among sward types for the utilization of nitrogen and energy by Korean native goats.

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Effects of pasture Type on Behavior pattern , Change of Body Type and Daily Gain of Korean native Goat (방목지 유형이 재래산양의 행동양식 , 체형변화 및 증체량에 미치는 영향)

  • 백인철;이상무;문상호;전병태
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.16 no.3
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    • pp.235-244
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    • 1996
  • This experiment was carried out to evaluate the effect of pasture type on behavior pattern, change of body type and daily gain of Korean native goat at the College of Natural Science of Kon-KuK University in Chungju. The results are summarized as follows : Relative coverage of native herbage at the pasture area was 62% in initial grazing period and that final grazing period decreased by 36%. while pasture plants increased from 17 to 42%. In brush area, Quercus serrata. Quercus dentutu, Prunus surgenrii and Rhus vemicrflua of high palatability decreased with increase in grazing period. but Rhododendron mucronulatum and Rhodendrorl schlippenbachii of low palatability tended to increase. Average crude protein content at the pasture area(12.3Q) during grazing period was higher than that at the brush area(10.2). However, ADF and NDF content was lower than brush area. Ca, Mg and Na of mineral content showed highly at the brush area during the grazing period. but Na showed highly at the pasture area. Eating time Korean native goat was not different between pasture area(369 min.) and brush area(361 min.), but ruminating time showed highly at the pasture area(441 min.). Average ratio of GTlRT at the pasture and brush area was not different m 0.88 and 0.87, respectively. All body type(withers height, body length, shin circum, hip height, hip width and chest girth) showed highly that pasture area compared to brush area during the grazing periods. The daily liveweight gain showed 60.6 and 48.98 at the pasture and brush area, respectively.

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Effect of Leucaena Row Spacing and Cutting Intensity on the Growth of Leucaena and Three Associated Grasses in Thailand

  • Tudsri, S.;Kaewkunya, C.
    • Asian-Australasian Journal of Animal Sciences
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    • v.15 no.7
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    • pp.986-991
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    • 2002
  • An experiment was conducted at Suwanvajokkasikit Research Station, Pakchong, Nakornratchasima, Thailand, to determine the yield and quality of three different grass cultivars intercropped with leucaena (Leucaena leucocephala). The treatments consisted of three grass cultivars (ruzi, dwarf napier and Taiwan A25) as the main plots, planted between leucaena at three row spacings (1, 2 and 4 m width) as the sub plots and leucaena cutting height (10 and 25 cm above ground levels) as sub-sub-plots. Dwarf napier consistently produced more dry matter than Taiwan A25 or ruzi and Taiwan A25 outyielded ruzi. Leucaena yield was highest in the ruzi plot and lowest in the dwarf napier plot. However, yields of grass plus leucaena were highest in the dwarf napier plot and were lowest in the ruzi plots. The difference was due mainly to the grass components. Increasing the spacing between rows of leucaena resulted in a lower leucaena yield but the reverse was true for the grasses. Cutting of leucaena at 10 cm above ground levels depressed yields of leucaena but did not affect the associated grasses. In terms of herbage quality, it was found that the crude protein of leaves and stems of the dwarf napier and Taiwan A25 were higher than that of the ruzi grass. Leucaena gave higher levels of crude protein than all grasses. The phosphorus and potassium levels of all grasses were higher than leucaena. ADF levels were higher in the grasses than in the legumes. Nutrient contents in the leaves and stems of grasses and leucaena were not affected by leucaena spacing and cutting height.