• 제목/요약/키워드: tropical plants

검색결과 162건 처리시간 0.024초

GROWTH AND FODDER YIELD OF THE Gliricidia sepium PROVENANCES IN FENCE SYSTEM IN DRYLAND FARMING AREA IN BALI, INDONESIA

  • Sukanten, I.W.;Nitis, I.M.;Lana, K.;Uchida, S.;Suama, M.
    • Asian-Australasian Journal of Animal Sciences
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    • 제8권5호
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    • pp.515-522
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    • 1995
  • The field experiment was carried out to study the growth and fodder yield of the Gliricidia sepium provenances in fence system in dryland farming area in Bali, Indonesia for 24 months. The design of the experiment was a completely randomized block arrangement, consisted of 16 treatments (Gliricidia sepium provenances) and 12 blocks with 10 plants per provenance. Of the 16 gliricidia provenances, six were from Mexico (M), four were from Guatemala (G), and one each was from Colombia (C), Indonesia (I), Nicaragna (N), Panama (P), Costa Rica (R) and Venezuela (V). After 40 weeks establishment the gliricidia were lopped regularly 4 times a year, twice during the four month wet season and twice during the eight month dry season at 150 cm height. There were variations (p < 0.05) in stem elongation from 10 to 121 cm, leaf retained from 48 to 105%, leaf shedding from 53 to 86%, branch number from 4 to 7, fodder yield from 281 to 648 g DW/plant, and wood yield from 53 to 179 g DW/plant; and such variations were affected by the seasons. Retalhuleu provenance of Guatemala (G14), Belen provenance of Nicaragua (N14) and Bukit Bali provenance of Indonesia (I) were ranked first, second and third, respectively, measured in terms of stem elongation, leaf retention, fodder and wood yields during the wet and dry seasons.

Growth and Fodder Yield of the Gliricidia sepium Provenances in Guardrow System in Dryland Farming Area in Bali, Indonesia

  • Sukanten, I.W.;Nitis, I.M.;Uchida, S.;Lana, K.;Puger, A.W.
    • Asian-Australasian Journal of Animal Sciences
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    • 제10권1호
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    • pp.106-113
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    • 1997
  • A field experiment was carried out on a dryland farming area of southern Bali for 92 weeks, to study the growth and fodder yield of 16 provenances of Gliricidia sepium in guardrow system. The experimental design was completely randomized blocks of 16 treatments (Gliricidia sepium provenances) replicated 3 times, with 6 plants per provenance. Six provenances were from Mexico (M), four from Guatemala (G), and one each from Colombia (C), indonesia (I), Nicaragua (N), Panama (P), Costa Rica (R) and Venezuela (V). After 40 weeks establishment the gliricidia were lopped 4 times a year at 150 cm height, at 2 months intervals during the 4 month wet season and 4 month intervals during the 8 month dry season. Stem elongation varied from 21 to 81 cm, leaf retention from 39 to 240%, branch number from 12 to 35, fodder yield from 1,090 to 3,153 g DW/plant. and wood yield from 743 to 2,750 g DW/plant. Pontezuelo provenance of Colombia (C24), Belen provenance of Nicaragua (N14) and Retalhuleu provenance of Guatemala (G14) were ranked first, second and third, respectively, for stem elongation, leaf retention, fodder and wood yields, during the wet and dry seasons.

IoT를 활용한 가정용 열대어 아쿠아포닉스에 관한 탐색적 연구 (Exploratory Research : Home Aquaponics of Tropical Fish Using IoT)

  • 김경현;한동욱
    • 한국콘텐츠학회논문지
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    • 제21권4호
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    • pp.424-433
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    • 2021
  • 본 연구는 상업적인 목적으로 미꾸라지, 잉어, 메기 등의 어종을 활용한 아쿠아포닉스 시스템과 다르게 가정에서 반려어로 사육하는 열대 어종인 구피를 활용한 가정용 아쿠아포닉스의 적용 가능성을 탐색한 논문이다. 가정에서 아쿠아포닉스의 적용이 쉽도록 사물 인터넷 기술을 활용하여, 수조, 수초, 수경재배 화분, 식물생장용 LED, 아두이노 센서 등을 연결하여 시스템을 갖추었다. 수경재배 작물로는 가정에서 쉽게 구할 수 있고 소비할 수 있는 상추를 선택하였다. 열대어를 활용한 아쿠아포닉스의 적용 가능성을 확인하기 위해 동일한 환경의 수경재배 작물을 대조군으로 성장률을 비교하였다. 열대어를 활용한 아쿠아포닉스 작물의 성장률은 수경재배 작물의 성장률 대비 77.4% 정도였으며 이것은 향후 사육 열대어의 수, 성장에 적절한 산도(pH) 조절 등의 조건을 충족시킬 경우 수경재배와 동일한 효과를 낼 수 있다고 볼 수 있으며 향후 이를 활용하여 가정에서 적용 가능한 아쿠아포닉스 표준 시스템을 개발할 수 있다.

Landscapes and Ecosystems of Tropical Limestone: Case Study of the Cat Ba Islands, Vietnam

  • Van, Quan Nguyen;Duc, Thanh Tran;Van, Huy Dinh
    • Journal of Ecology and Environment
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    • 제33권1호
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    • pp.23-36
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    • 2010
  • The Cat Ba Islands in Hai Phong City, northern Vietnam, consist of a large limestone island with a maximum height of 322 m above sea level and 366 small limestone islets with a total area of about $180\;km^2$. The islands are relicts of karst limestone mountains that became submerged during the Holocene transgression 7000 - 8000 year ago. The combination of the longtime karst process and recent marine processes in the monsoonal tropical zone has created a very diversity landscape on the Cat Ba Islands that can be divided into 3 habitat types with 16 forms. The first habitat type is the karst mountains and hills, including karst mountains and hills, karst valleys and dolines, karst lakes, karst caves, and old marine terraces. The second habitat type is the limestone island coast, including beaches, mangrove marshes, tidal flats, rocky coasts, marine notch caves, marine karst lakes, and bights. The third habitat type is karst plains submerged by the sea, including karst cones (fengcong) and towers (fengling), bedrock exposed on the seabed, sandy mud seabed, and submerged channels. Like the landscape, the biodiversity is also high in ecosystems composed of scrub cover - bare hills, rainy tropical forests, paddy fields and gardens, swamps, caves, beaches, mangrove forests, tidal flats, rocky coasts, marine krast lakes, coral reefs, hard bottoms, seagrass beds and soft bottoms. The ecosystems on the Cat Ba Islands that support very high species biodiversity include tropical evergreen rainforests, soft bottoms; coral reefs, mangrove forests, and marine karst lakes. A total of 2,380 species have been recorded in the Cat Ba Islands, included 741 species of terrestrial plants; 282 species of terrestrial animals; 30 species of mangrove plants; 287 species of phytoplankton; 79 species of seaweed; 79 species of zooplankton; 196 species of marine fishes; 154 species of corals; and 538 species of zoobenthos. Many of these species are listed in the Red Book of Vietnam as endangered species, included the white-headed or Cat Ba langur (Trachypithecus poliocephalus), a famous endemic species. Human activities have resulted in significantly changes to the landscape end ecosytems of the Cat Ba islands; however, many natural aspects of the islandsd have been preserved. For this reason, the Cat Ba Islands were recognized as a Biological Reserved Area by UNESCO in 2004.

Biochemical Studies on Hypoglycemic Agents (I) Effect of Azadirachta indica leaf extract

  • El-Hawary, Z.M.;Kholief, T.S.
    • Archives of Pharmacal Research
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    • 제13권1호
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    • pp.108-112
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    • 1990
  • It was confirmed that extracts of some plants were used in folklore medicine as hypoglycemic agents. Of these plants is Azadirachta indica ("neem") which grows in tropical regions. The present study deals with biochemical effects of the "neem" leaf water extract given orally to experimental aminals, especially the hypoglycemic characteristics. Normals as well as alloxan diabetic rats have been used in this work. The results showed that the "neem" leaf extract produced some hypoglycemia in normal rats when given in two doses, while in diabetic rats there was a decrease in blood sugar, but it could not alleviate the diabetic in body weight loss and high percentage mortality, especially with a high dose. It was observed increased with concomitant decrease in the liver fat as compared to normal levels. There was also a drop in liver proteins which was dose-related. The results were compared wiht those obtained with an oral hypoglycemic drug (Glibenclamide).glycemic drug (Glibenclamide).

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鄕藥集成方의 植物性 漢藥材에 關한 硏究 (A Study of the Botanical Herb Medicine in Hyang-Yak Chip Seong Bang)

  • 강춘기
    • 한국자원식물학회지
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    • 제6권1호
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    • pp.53-75
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    • 1993
  • This paper deals with Hyang-Yak Chip Seong Bang, which was made by Hyo-Tong Yu, Jung-Rye Noh and Yun-Duk Park by the order of King Sechong in 1431 and published in eighty-five volumes in 1433. This work includes on hundred three families and two hundred eighty-one species plants, and makes a comprehensive survey of past studies on some medical books. To publish this work, some specialists such as Jung-Rye Noh were sent to China and they made an exchange of opinions with some specialists of China to correct some facts. Cullen soryliforia and Trigonella foenumgraecum of Laguminosae were described as a subtropical plant or tropical plant which had not been produced in our country Also, it includes several anti-cancer plants such as Panax schinseng and Rubia akane that are very helpful to the treatment of diseases of adult people.

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Anti-oxidant activity from Brazilian Botanical Extracts

  • T. Peranovich-Victorio;E. Lima;S. Delarcina;A Costa;V. Nakano;J.R. Cagnon;E.Vicentini;Gesztesi, J-L
    • 대한화장품학회:학술대회논문집
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    • 대한화장품학회 2003년도 IFSCC Conference Proceeding Book II
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    • pp.213-217
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    • 2003
  • Antioxidants have been used in cosmetic industry for treatment of aged skin and recently have been also introduced as additives in photoprotection products. In order to determine among the Brazilian botanical species presenting interesting antioxidant activities we have screened several extracts from plants from Rain and Amazonical Tropical Forests, as well as some endemic species, using both TBARs and DPPH methods. Extracts with antioxidant activities were found with Jacaranda caroba, Veloso DL, Spilanthes oleracea (Spilanthes acmella var. oleracea), Orbignya phalerata, Pothomorphe umbellata, Chiococca brachiata and Polypodium lepidopteris. Other extracts such as Camelia sinensis, Sambucus australis, Rosmarinus officinalis L. were also studied, and showed some antioxidant activity.

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Improving productivity in rabbits by using some natural feed additives under hot environmental conditions - A review

  • Magdy Abdelsalam;Moataz Fathi
    • Animal Bioscience
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    • 제36권4호
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    • pp.540-554
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    • 2023
  • Heat stress is a major challenge to animal production in tropical and subtropical climates. Rabbits suffer from heat stress more than farm animals because they have few sweat glands, and their bodies are covered with thick fur. Intensive farming relies on antibiotics as antimicrobials or growth promoters to increase animals' productivity and health. However, the European Union and many countries have banned or restricted the use of antibiotics in animal feed for human health concerns. Several studies have found that replacing antibiotics in rabbit feed with natural plants or feed additives increases productivity and improves immune capacity, especially under heat stress conditions. Growth performance, immune response, gut microflora, and carcass yield may be increased in rabbits fed a diet supplemented with some natural plants and/or propolis. In this review article, we discuss and summarize the effects of some herbs and plant extracts as alternative feed additives on rabbit productivity, especially for those raised under hot ambient temperatures.

Studies on Anti-cancerous and Anti-malarial Substances from Simaroubaceae Plants

  • Takeya, Koichi
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2000년도 The 7th International Symposium
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    • pp.64-65
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    • 2000
  • Cancer is a general term subjected to a series of malignant tumor diseases which may affect many different parts of the human body. These cancer diseases are characterized by a rapid and uncontrolled formation of abnormal cells in the body. Cancer chemotherapeutic agents can often provide the prolongation of life and occasionally cures. To date many kinds of compounds have been obtained from plants kingdom as anti-neoplastic and anti-cancerous agents. However, there is no special type of compounds for cancer therapy. In our laboratory, anti-tumor and cytotoxic screenings on higher plants collected in Japan, China, Korea, Southeast Asia and South America have been done by using Sarcoma 180 ascites in mice, P388 lymphocytic leukemia in mice, Chinese hamster lung V-79 cells, P388 cells and nasopharynx carcinoma (KB) cells. The family, Simaroubaceae consists of about 20 genera and 120 species, mainly shrubs and trees, distributed in tropical and subtropical country. Simaroubaceae is classified as RUTALES, together with Rutaceae, Burseraceae, Meliaceae, Malpighiaceae and Polygalaceae. The members differ from the Rutaceae in not containing oil glands. Bitter principles are a characteristic of the family, Simaroubaceae. The genera include Quassia (Simarouba) (40 spp.), Picrasma (Aeschrion) (6 spp.), Brucea (10 spp.), Soulamea (10 spp.), Ailanthus (10 spp.) and Perriera (1 spp.) etc.. Surinam quassia derived from Quassia amara growing in Guianas, north Brazil and Venezuela is used in traditional medicines for stomachic, anti-amoebic, anti-malarial and anti-anaemic properties. Also, various parts of a number of plants of the family Simaroubaceae have been used in traditional medicine for the treatment of a variety oi diseases including cancer, amoebic, dysentery and malaria. Then, the research has established that it is the quassinoid content of these plants that is responsible for above activities. In this meeting, I will present on anti-tumor and anti-malarial activities and their active principles of Simaroubaceae plants, Eurycoma longifolia, Ailanthus vilmoriniana, Simaba cedron and Brucea mullis which have been studied in our laboratory.

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