• 제목/요약/키워드: Ryegrass

검색결과 591건 처리시간 0.023초

禾本科 牧草의 種屬間雜種 Hybrid ryegrass와 Festulolium의 生育特性 (Some Characteristics of Interspecific and Intergeneric Hybrids in Herbage Grasses)

  • 류종원;강정훈;한흥전;김웅배;박병훈
    • 한국초지조사료학회지
    • /
    • 제8권2호
    • /
    • pp.123-127
    • /
    • 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 height of Italian ryegrass were longer/taller 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. Festuloliu and hybrid ryegrass were more tolerant than Italian ryegrass 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 Festuloliu was lower.

  • PDF

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

  • 류종원;강정훈;한흥제;김웅배;박병훈
    • 한국초지조사료학회지
    • /
    • 제8권3호
    • /
    • pp.123-127
    • /
    • 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.

  • PDF

Perennial ryegrass 품종의 적응성 비교시험 (Performance of Perennial Ryegrass ( Loium perenne L. ) Cultivars)

  • 이창섭;김병완;성경일;김창주
    • 한국초지조사료학회지
    • /
    • 제17권4호
    • /
    • pp.387-398
    • /
    • 1997
  • This experiment was to investigate the surface coverage, sward height and dry matter yield of 63 perennial ryegrass cultivars with control cultivar, orchardgrass(Potomac) at different cutting dates(May 25, July 5, August 20 and October 5), in order to select the adaptable cultivars of perennial ryegrass in the middle region of Korea. Four perennial ryegrass cultivars, E.V. Meadea, Aberystwyth S101, Raidor and Real, didn't survive afler sowing. Surface coverage of perennial ryegrass cultivars cut in August 20 was lower than others. Sward height of perennial ryegrass cultivars at each cutting dates was lower than that of orchardgrass. There were no significant differences in sward heights of each cutting date. Dry matter yield of perennial ryegrass cultivars cut in August 20 was lower than others. Total dry matter yield of Oakpark 6% Viktoria, Petra, G. Manawa, and Kangaroo Valley was fell in the range of 11.76 and 10.37t/ha while that of orchardgrass was 12.09t/ha. On the basis of total annual dry matter yield, the adaptability of perennial ryegrass cultivars was classfied as following.

  • PDF

월동전 예취 높이가 북방형목초의 월동성 , 이른봄 수량 및 양분생산에 미치는 영향 I. 초종별 예취 높이에 따른 저장탄수화물함량의 변화 , 월동성 및 수량 비교 (Effect of Cutting Height on the Winter Survival , Early Spring Yield and Energy Production of Italian ryegrass, Tall fescue and Perennial ryegrass I. Comparison of nonstrural carbohydrate contents, winter survival and early spring yields)

  • 신재순;박근제;차영호;이필상;윤익석
    • 한국초지조사료학회지
    • /
    • 제8권1호
    • /
    • pp.14-19
    • /
    • 1988
  • 본 실험은 가을에 파종하여 월동전 예취 높이를 달리 하였을 때 공식초종의 탄수화물함량변화, 월동성 및 다음해 봄철 수랑에 미치는 영향을 구명하기 위해 초종(Italian ryegrass, tall fescue, perennial ryegrass)을 주구로 하고 월동전 예취 높이 (무예취, 6cm, 15cm)를 세구로 하여 분활구배치 3반복으로 설계하여 수행한 결과는 다음과 같다. 1. 초종별 예취 높이에 따른 목장내 온도변화는 tall fescue > perennial ryegraa > Italian ryegrass 순으로 높게 나타났으나 예취 높이 간에는 일정하지 않았다. 2. 월동전 초종별 평균저장탄수화물 함량은 세초종 모두 무예취>15cm 예취>6cm 예취순으로 나타났으며 초종간에는 Italian ryegrass > perennial ryegrass > tall fescue 순으로 높게 나타났다. 한편 월동율은 초종간 예취 높이에 차가 없었다. 3. 생초수량에 있어서는 초종간에서 Italian ryegrass>perennial ryegraa>tall fescue 순으로 높게 나타나 유의성(P<0.05)이 나타났으나 건물수량에 있어서는 초종간, 예취 높이간 모두 유의성 (P>0.05)이 나타나지 않았다.

  • PDF

일년생 및 다년생목초에 있어서 인산흡수의 연차적 변화 (Yearly Change of Phosphorus Absorption in Annual-and Perennial Grass)

  • 정찬;전병태
    • 한국초지조사료학회지
    • /
    • 제11권4호
    • /
    • pp.230-235
    • /
    • 1991
  • 일년생과 다년생식물의 생육환경으로써 토양인산 수준의 영향에 관하여 검토하였다. 1. 일년생의 IRG(Italian ryegrass)와 다년생의 PRG (Perennial ryegrass) 모두 인산시비량이 많을수록 초장이 길어지는 경향을 나타내었다. 2. 2년차 이후는 모든 처리구에서 PRG가 IRG에비하여 건물량이 많았다. 3. 다P처리에 대한 무P처리의 P수량 비율은 1년째부터 3년째에 걸쳐 IPG의 경우 건물량과 같이 매년비율이 커지는 것에 대하여 PRG의 경우는 매년 오히려 처리간의 차가 작아지는 경향을 나타냈다. 4. 다년생의 PRG는 일년생의 IRG에 비하여 고인산환경하에서 보다 저인산 환경하에서의 생육이 유리하여지는 경향을 나타내었다.

  • PDF

질소시비수준 및 Ryegrass류혼파가 겉뿌림 초지개량에 미치는 효과 I. 정착률, 식생구성률 및 건물수량에 관한 효과 (Effects of Nitrogen Application Levels and Ryegrasses as a Member of Mixture on Improvement of Oversown Pasture I. Establishment, botanical composition and productivity)

  • 강호준;김문철
    • 한국초지조사료학회지
    • /
    • 제11권4호
    • /
    • pp.222-229
    • /
    • 1991
  • 겉뿌림초지 개량효과를 높이기 위해 질소시비수준과 보조초종 라이그라스 조합의 필요성 여부를 구명키 위해 4처리 질소시비수준(0, 100, 200, 300kg/ha)과 3처리 혼파조합(A; orchardgrass+ladino clover, B; orchardgrass+ladino clover+perennial ryegrass, C; orchardgrass+ladino clover+perennial grass+Italian ryegrass)으로 본 시험이 수행되었다. Perennial ryegrass, Italian ryegrass 및 dine clover의 정착률은 질소증시로 증가되었고 ladino clover 의 정착률은 ryegrass조합으로 감소되는 경향이었다. 화본과 목초의 식생구성율을 질소증시에 따라 증가하지만 두과목초와 기존야초류는 감소하였으며 예취회수가 진행됨에 따라 목초율이 증가되고 있다. 목초의 건물수량은 질소시비량에 비례하여 유의적으로 증가하였으며(P<0.05), orchardgrass十ladino clover조합구가 다른 조합구에 비해 수량이 높았으나 유의차는 없었다(P<0.05). 그러나 예취시기별로 볼때 orchardgrass+ladino clover 혼파구의 목초수량이 2회 예취시에만 타 혼파조합구 보다 유의적 증수가 이뤄졌고(P<0.05), orchardgrass十ladino clover조합구에서 기존야초류의 건물수량이 1회와 2회 예취시에만 타 조합구에 비해 유의적 감소를 보였다(P<0. 05). 본 시험의 결론으로는 겉뿌림으로 초지를 개량하기위해서 질소를 적어도 300kg/ha 시용해야 하며 orchardgrass와 ladino clover조합이 이 기본조합에 ryegrass류를 혼파하는 것보다 유리하다고 사료된다.

  • PDF

식생비율과 질소.인산시용이 Subterranean Clover-Italian Ryegrass 및 Berseem Clover-Italian Ryegrass 혼파 초지의 생산성과 종간경합에 미치는 영향 (Effects of Sward Composition and N.P Fertilization on Forage Yields and Intercompetition of Subterranean clover-Italian Ryegrass and Berseem clover-Italian Ryehrass Mixtures)

  • 강진호
    • 한국작물학회지
    • /
    • 제37권3호
    • /
    • pp.274-282
    • /
    • 1992
  • Annual forage crops have been increasingly important for conpensating insufficient forage production of perennial pastures took place for short interval. This experiment was conducted to determine the effect of sward composition and NㆍP fertilization on forage production and intercompetition of subterranean clover-Italian ryegrass and berseem clover-Italian ryegrass. The two clovers were grown in the field at the clover/ryegrass ratios of 0/100, 25/75, 50/50, 75/25 and 100/0 where no, N (200 kg /ha), P (50 kg /ha) or NㆍP fertilization was done. Each crop was separated after harvest and drying. Relative Crowding Coefficient (RCC), aggressivity and Relative Yield Total (RYT) were analyzed on the basis of the harvested dry matter of each crop. Berseem clover-ryegrass mixtures produced greater yield than subclover-ryegrass mixtures as a result of higher yields of the two component species. In the former forage yield was increased with increased rate of clover up to 75%, while in the latter the highest yields were obtained at more than 50% of the clover. In the mixtures N stimulated the growth of ryegrass, whereas P did only that of subclover. The two clovers produced more forage than the companion grass under no and only P fertilization although the reverse result was true under N or NㆍP fertilization, but the annual forage yield was decreased in the order of N and P, N, P, and no fertilization. The mixture yields were overyielded compared to the Expected Yield. Although generally RCCs and RYTs of subclover were higher than those of berseem clover in the mixtures differing the composition rate or under no and only P fertilization, those of the former clover were lower under N or NㆍP fertilization. In the clover-ryegrass mixtures, ryegrass acted as an aggressor and became more aggressive under P fertilization.

  • PDF

그늘하에서의 Kentucky Bluegrass와 Perennial Ryegrass 품종의 생육비교 (A Comparison of Vegetative Growth of Kentucky Bluegrass and Perennial Ryegrass Cultivars in Different Levels of Shade)

  • 구자형;김태일;원동찬;송남현;송천영
    • 아시안잔디학회지
    • /
    • 제5권1호
    • /
    • pp.23-32
    • /
    • 1991
  • The purpose of this study was to determine the vegetative growth of two cool season turfgrasses during summer season in Korea. Ten respective cultivars of Kentucky bluegrass [Poapratensis L.] and perennial ryegrass [Lolium perenne L.] were exposed to unshaded, 30% and 60% shade for 4odays. First mowing height was 7cm, and then clippings were harvested every ten days at the same height. Shading increased the total length of clippings of all cultivars of two turfgrasses, but fresh and dry weight were significantly decreased. The highest shoot length obtained at 30% shade in Kentucky bluegrass and at 60% shade in perennial ryegrass. 'Rugky', 'Sydsport', 'Wabash' and 'Baron' of Kentucky bluegrass and 'Repel', 'Omega II', 'Ovation', 'Linn', 'Bell' and 'Manhattan' of perennial ryegrass showed relatively high tolerance to shade. Especially, in 'Citation II' perennial ryegrass, fresh and dry weight were increased by 30% shade. The number of tillers generally decreased with increasing shade. In 30% shade, 'Midnight' Kentucky bluegrass and 'Omega II' perennial ryegrass were least reduced and 'Baron' Kentucky bluegrass and 'Pennant' perennial ryegrass were most reduced. The cultivars of lower growth habit in full sunlight showed shade tolerance compared to those of higher growth habit.

  • PDF

Prospect of new variety breeding of Italian ryegrass in South Korea

  • Ji, Hee Chung;Hwang, Tae Young;Lee, Ki Won
    • 한국작물학회:학술대회논문집
    • /
    • 한국작물학회 2017년도 9th Asian Crop Science Association conference
    • /
    • pp.108-108
    • /
    • 2017
  • The objective of this study was to know prospect and present state of new variety breeding of Forage and Grassland in South Korea. The industry of forage in Korea is going up to expend through utilization of good quality forage, Italian ryegrass, forage corn and oat rather than rice straw. Especially, since 2007, Italian ryegrass(IRG) had been very important major winter forage crop in South Korea and developed 13 varieties including very early maturity variety (three varieties), early maturity variety (three varieties), medium maturity variety (one variety) and late maturity variety (six varieties). But the disadvantage of Italian ryegrass was weak winter hardness and drought but has good advantage of forage nutritive value, high-yielding and high sugar content, and like livestock as like hanwoo, dairy cattle, goat so on. The Ko-variety (Korea developed variety) of Italian ryegrass has high cold-tolerant and adaptability more than any other country developed variety, and expend to cultivation area from southern area (below Daejeon) to middle-northern area (upper Han river). Although the cultivation area of Italian ryegrass of South Korea was 21,700 ha in 2007, right now, that of Italian ryegrass is about 123,600ha due to expend cultivation area and know famer to good forage crop and have a various maturity varieties (very early, early, medium, late) according to local situation (before-crop harvesting stage or double cropping system). The seed market of Italian ryegrass in South Korea becoming extended to around 100 million Korean won and seed export get nearer to foreign country. We are going to develop of new variety for stress tolerant and high yield and quality forage variety, good adaptability to the Korean environmental conditions including reclaimed area, make self-sufficiency system for forage seed (Italian ryegrass), export our seed to foreign countries.

  • PDF

화본과목초의 종.속간 잡종에 관한 연구 II. Italian ryegrass X tall fescue F1 잡종의 형태 및 생리적 특성 (Studies on the Interspecific and Intergeneric Hybridization in Herbage Grasses II. Morphological physiological charateristics of Italian ryegrass X tall fescue hybrid)

  • 박병훈;류종원;이영현
    • 한국초지조사료학회지
    • /
    • 제11권1호
    • /
    • pp.1-5
    • /
    • 1991
  • Tall fescue(Festuca amndinacea Schreb.) is a productive pasture grass that is widely adapted to the soil and climate of Korea. It is regarded, however, as relatively low in palatability and nutritive value. On the other hand, Italian ryegrass(lo1ium rnultz$om Lam.) is highly nutritious and palatable, but is essentially weak in cold tolerance. Numerous investigators have succeeded in producing hybrids between Lolium spp. and Festuca spp. but no improved varieties have resulted. Therefore, intergeneric hybridization of Italian ryegrass with tall fescue is employed in 1984 to improve the adaptive and cold resistance quality of Italian ryegrass. In the mean time, F1-hybrid plants obtained by crossing Italian ryegrass x tall fescue were observed in open field. The results are summarized as follows: 1. Leaf-size and silica cell hair were intermediate between the types of parents but the shape of auricle tended to show Italian ryegrass and auricle-cilia to show tall fescue. 2. Roots of $F_1$-hybrid plants were mainly distributed at top soil and did not produced florescence material. 3. Head type of hybrids was intermediate between the types of parents but ray length was somewhat less than the length of tall fescue ray. Typical Italian ryegrass or tall fescue-like phenotypes were not observed. 4. Anthers of $F_1$-hybrid plants were formed but pollen were not formed. Even though pollen were formed, they were all empty. 5. Hybrid plants were more winterhardy and summer persistency than Italian ryegrass. They showed a equivalent growth to Italian ryegrass in spring and to tall fescue in summer. 6. Chromosome of $F_1$-hybrids was allopolyploid(2n=4~=28) and all $F_1$-hybrid plants were sterile.

  • PDF