• Title/Summary/Keyword: Graminease

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Feeding Habit Analysis of the Korean Water Deer (고라니(Hydropotes inermis argyropus)의 식이습성 분석)

  • Park, Ji-Eun;Kim, Baek-Jun;Oh, Dae-Hyun;Lee, Hang;Lee, Sang-Don
    • Korean Journal of Environment and Ecology
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    • v.25 no.6
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    • pp.836-845
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    • 2011
  • This study aims feeding habit of the Korean water deer(Hydropotes inermis argyropus) using a visual analysis of rumen contents of 44 individuals. The samples were collected from Cheorwon(Gangwon province) and the eastern part of Jeonnam province. Based on the analysis, a total of 15 orders, 18 families and 13 species were identified. Among them, Solanceae(53.8%) and Graminease(30.3%) showed the highest proportions. Plants of 13 orders, 15 families and 10 species were found and forbs(70.21%) and Solanceae(54.9%) were most preferred in Cheorwon. Eight orders, 7 families and 4 species were found in the Eastern parts of Jeonnam province, and Gramineae(78.6%) and woody plants(14.70%) was most preferred. Among four seasons, Gramineae in spring(80.6%) and autumn(68.8%), Leguminosae(75.9%) in summer, and Solanceae(85.4%) in winter were the highest proportions.

Studies on the Associative N2-fixing Microbes in Crop Root Systems -I. Associative Nitrogen Fixation by Azospirillum Isolated from Weed Roots grown Rice Paddy Field and its Distribution (작물근계(作物根系) 협생질소(協生窒素) 고정미생물(固定微生物)에 관(關)한 연구(硏究) -I보(報) : 논 토양(土壤) 잡초근계(雜草根系) 협생질소(協生窒素) 고정미생물(固定微生物)의 분포(分布)와 질소고정(窒素固定))

  • Ryu, Jin-Chang;Lee, Sang-Kyu;Park, Jun-Kyu;Ko, Jae-Young;Cho, Moo-Je
    • Korean Journal of Soil Science and Fertilizer
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    • v.17 no.4
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    • pp.415-427
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    • 1984
  • This experiment was carried out to investigate the distribution of associative nitrogen fixers, Azospirillum spp. and their nitrogenase activities measured by ARA in the rhizosphers of rice, soybean, and weed grown in the rice paddy field at ear formation stage of rice. Nitrogenase activities produced by Azospirillum spp. enriched from histophere ranged from 16 to 53 n mole/tube/hr.. High nitrogen fixing activities more than 30 n mole/tube/hr. were observed in the histophere of the Echinochloa crus-galli L., Finbristylis miliacea L., and Monochoria vaginalis var.. Nitrogen fixing activities of Azospirillum spp. obtained from single colonies which originated from the rhizoplane of rice (pot-kwang var.), Finbris tylis miliacea L., Monochoria vaginaliz var., Glycine max L. were higher over 100 n mole/tube/hr. than those histophere. Genus of Azopsirillum isoltated from roots of the Graminease (Oriza sativa L., $C_3$-plant, Echinochloa crus=galli L., $C_4$-plant, Cyperus difforuis L.. $C_4$-plant), and Aeschynomene indica L. (Leguminosae, $C_3$-plant) was identified as A. brasilense. However, both strains, A. lipoferum and A. brasilense ($nir^-$ or $nir^+$ strain) were isolated from other plant roots, Both $nir^-$ and $nir^+$ strains of A. brasilense were associated with the same host plant.

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