{"id":1018,"date":"2007-12-02T09:13:26","date_gmt":"2007-12-02T02:13:26","guid":{"rendered":"http:\/\/vafs.gov.vn\/en\/?p=1018"},"modified":"2019-09-26T10:24:12","modified_gmt":"2019-09-26T03:24:12","slug":"vietnam-journal-of-forest-science-number-4-2007-2","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/en\/2007\/12\/vietnam-journal-of-forest-science-number-4-2007-2\/","title":{"rendered":"Vietnam Journal of Forest Science Number 4-2007"},"content":{"rendered":"

1. A Newly Recorded Species of Schizostachyum<\/em> Nees Genus (Poaceae) \u2013 Schizostachyum chinense<\/em> Rendle for <\/strong>Vietnam<\/strong>\u2019s Flora<\/strong><\/span>\u00a0<\/span><\/p>\n

Nguyen Hoang Nghia, Tran Van Tien<\/span><\/strong><\/p>\n

Forest Science Institute of <\/em>Vietnam<\/em><\/span>\u00a0<\/span><\/p>\n

Summary<\/span><\/strong>\u00a0<\/span><\/p>\n

Schizostachyum chinense<\/em> Rendle has natural distribution in high mountain forests of China and Vietnam. The species were found in evergreen broad-leaved forests in Hoang Lien National Park (Sa Pa district, Lao Cai province of Vietnam). The specimens were collected in Da xe Mount location of Sa Pa and deposited in the herbarium of the Forest Science Institute of Vietnam (FSIV). Based on morphological characteristics and flower structure, the species was described and compared with typical specimen of Schizostachyum chinense<\/em> Rendle (Code: Guangzhou 595684) in Herbarium, South China Botanic Garden (Guangzhou, China). This is a newly recorded Schizostachyum<\/em> species for the Flora of Vietnam. It has some special characteristics such as upper base of culm sheath swollen, lower base of culm sheath with rounded and curved margin, two short and big stigmas<\/em><\/strong>. The Vietnamese name of the species was called Sa Pa Schizostachyum<\/em> to remember the location where the first specimen was collected for identification.<\/span>\u00a0<\/span><\/p>\n

Keywords<\/strong>: Sa Pa Schizostachyum<\/em>, Schizostachyum chinense <\/em>Rendle, new species,\u00a0<\/span>\u00a0<\/span><\/strong><\/p>\n

2. Social impact assessment in Dak To <\/strong>State<\/strong> Forest<\/strong> Enterprise<\/strong> \u2013 Kontum province<\/strong><\/span><\/p>\n

Vo Dai Hai<\/span><\/strong><\/p>\n

Forest<\/em> Science Istitute of <\/em>Viet Nam<\/em><\/span><\/p>\n

Sustainable forest management and forest certification is a general trend of the society and is also our forest development strategy nowadays. Social impact assessment in Dak To State Forest Enterprise is carried out with an assistance of Vietnam – German Forestry Programme (GTZ) aiming at supporting Dak To Forest Enterprise to be linked with and gradually meet the requirement of sustainable forest management criteria of Vietnam FSC. The study has evaluated interaction between forest management activities of the enterprise and local social economic development; level of satisfactory of social indicators within National Criteria, especially criteria 2, 3 and 4. <\/span>\u00a0<\/strong><\/span><\/p>\n

Keywords:<\/strong> Social impact,\u00a0 Dak To State Forest Enterprise, sustainable forest management\u00a0\u00a0<\/span>\u00a0<\/span><\/p>\n

3. Studying on genetic diversity of some Camellia<\/em> sp. cultivars of <\/strong>Vietnam<\/strong> by random amplified polymorphic DNA (RAPD) markers<\/strong><\/span>\u00a0<\/span><\/p>\n

Nguyen Quang Khai<\/span><\/strong><\/p>\n

Silviculture Techniques Research Division<\/span><\/em><\/p>\n

Forest Science Institute of <\/em>Vietnam<\/em><\/span><\/p>\n

Khuat Huu Trung<\/span><\/strong><\/p>\n

Agricultural Genetics Institute<\/em><\/span><\/p>\n

summary<\/span><\/strong><\/p>\n

DNA from forty four Camellia<\/em> sp. cultivars was examined using polymerase chain reaction (PCR) to determine the efficiency of random amplified polymorphic DNA (RAPD) markers in determining levels of genetic variability. Using 20 primers (series OPA, OPM, OPK, OLG, BIO and S) in PCR-RAPD reactions for 44 Camellia<\/em> sp. cultivars The results shows that: there are 11 primers amplifying different classes of bands. A total of 2551 DNA bands were amplified by 528 PCR reactions. There are 155 amplified fragments, in which 151 polymorphic bands accounted for 97,4%. The sides of amplified fragments ranged from 200 to 5500 bp. The average was 231.9 bands per primer. There were 8 distinctive bands (including missing distinctive bands) which are fingerprinting marker to distinguish special one from all cultivars. Genetic similarity coefficients of 44 Camellia<\/em> sp. cultivars in each pair ranging from 0.25 to 0.76. According to these results, 44 studying Camellia<\/em> sp. cultivars were divided into10 subgroups belong to 3 groups based on their genetic similarity coefficients.<\/span>\u00a0<\/span><\/p>\n

Key words:<\/strong> Camellia<\/em>, cultivar, RAPD, genetic diversity, distinctive band<\/span><\/p>\n

4. Study on structure and composition of some majors forest types to establish of land use classification system for using\u00a0 LANDSAT, SPOT5 sattelite image in Da river basin <\/span><\/strong><\/p>\n

Duong Tien Duc, Cao Chi Khiem<\/span><\/strong><\/p>\n

Silviculture Techniques Research Division<\/span><\/em><\/p>\n

Forest<\/em> Science Institue of <\/em>Vietnam<\/em><\/span><\/p>\n

Summary<\/span><\/strong><\/p>\n

Using high technology in interpretation of satellite images has become popular over the world. Recently, it has been interested in Vietnam but its reality application is still sparing with ranges and methods of realization. Especially important regions like Da river basin where the bigest hydroelectric power plant of Vietnam is based on, the regular classification in state of this basin becomes necessary for plantation and management. Morover, high accurate classification is required to apply in reality for desired effect.<\/span>This research aimed at proposing the method for applying remote sensing technology in classification in satellite images of upstream watersed area of Da river. In the range of this paper, we have made a research for determination on structute and composition of this region to set basic for making a interpretation key of classification. As a first step, we have classified state of this region into 8 categories: (1) Natural evergreen broad-leaf forest; (2) Mixture bamboo forest; (3) limestone mountain forest; (4) Plantation forest; (5) Grass-land; (6) Mix agro-forest land; (7) Agricultural land; (8) Others .<\/span><\/p>\n

Keywords:<\/strong> Sattelite image, composition, remote sensing, interpretation.<\/span>\u00a0<\/span><\/p>\n

6. Michelia mediocris\u2019<\/em> <\/strong>seed physiological characteristics and storage method\u00a0<\/strong><\/span>\u00a0<\/span><\/em><\/p>\n

Nguyen Huy Son<\/span><\/strong><\/p>\n

\u00a0<\/span><\/em><\/strong>Non-timber<\/em> Forest<\/em> product research Center<\/em><\/span><\/p>\n

Forest Science Institute of <\/em>Vietnam<\/em><\/span>\u00a0<\/span><\/strong><\/p>\n

Summary<\/span><\/strong><\/p>\n

Michelia mediocris<\/em><\/span><\/p>\n

Dany is one of main plant species with highly economic value for forest planting in parts of Vietnam. Because Michelia mediocris <\/em>Dany seed fails to get germinating very quickly, research on physiological charateristic and storage method of the seed with a view to extend germinating time is necessary. The result of the research has shown that weight of 1000 seeds is some 258,55g; 1 kilogram of the seed is between 3383 and 4514 seeds, 3868 seeds per kilogram of the seed on average. Suitable peservation humidity of the seed is from 27 to 33 percent; Suitable peservation temprature of the seed is from 5 to 15 degree Celcius. The lower the seed humidity is, the quicker failing to get the seed germination. With the humidity of less than 10 percent the seed fails to get germinating; with the humidity of between 10 to 15 percent the seed fails to get germinating after the first month and with the humidity of between 20 to 33,6 percent the seed gets germinating during from 3 to 6 months.<\/span>\u00a0<\/span><\/p>\n

Keywords<\/strong>: Seed storage,\u00a0 Michelia mediocris <\/em>Dany\u00a0<\/span>\u00a0<\/span><\/p>\n

7. Insolating and screening endophytic bacteria to control of Cryptosporiopsis eucalypti <\/em>Sankaran &B. Sutton pathogen causing leaf spot of Eucalypt<\/span><\/strong>\u00a0<\/span><\/p>\n

Pham Quang Thu, <\/span><\/strong>Nguyen Thi Thuy Nga<\/span><\/strong><\/p>\n

Forest<\/em> Plant Protection Research Division<\/em><\/span><\/p>\n

Forest Science Institute of <\/em>Vietnam<\/em><\/span>\u00a0<\/span><\/p>\n

Summary<\/span><\/strong><\/p>\n

Eucalypts were widely and purely planted with the huge area in many places in Vietnam. Due to the pure plantation of this species, when the epidemic of disease takes place it is affecting and spreading quickly on the big area and causing difficulty of disease control. Cryptosporiopsis eucalypti<\/em> causing leaf spot, twig dryness and shoot die-back was one of the main agents. The endophytic bacteria are always living in the tissue of plants, and some of them are capable of anti-fungus. One hundred and thirteen colonies of endophytic bacteria were isolated from 15 twigs of eucalypt species which are healthy and vigorous, of which twenty colonies are totally different in characteristic. Five (B5<\/sub>, B8<\/sub>, P7<\/sub>, P17<\/sub> and P14<\/sub>) of those twenty colonies were antifungal bacteria to Cryptosporiopsis eucalypti<\/em>. This research result was primarily based-step to develop the method to control forest disease by bio-product.<\/span>\u00a0<\/span><\/p>\n

Key words:<\/strong> Eucalypt, Cryptosporiopsis eucalypti<\/em>, antifungal bacteria, endophytic bacteria\u00a0<\/span>\u00a0<\/span>\u00a0<\/span>\u00a0<\/span>\u00a0<\/span><\/strong>\u00a0<\/span><\/strong><\/p>\n

8. Results of test in effect of wood preservatives extracted from plant raw material against some wood damaging insect species<\/span><\/strong>\u00a0<\/span><\/strong><\/p>\n

Nguyen Thi Bich Ngoc, Truong Quang Chinh<\/span><\/strong><\/p>\n

Nguyen Duy Vuong, Nguyen Thi Hang, Le Bach Dang<\/span><\/strong><\/p>\n

Forest<\/em> Products Preservation Research Division<\/em><\/span><\/p>\n

Forest Science Institute of <\/em>Vietnam<\/em><\/span><\/p>\n

Summary<\/span><\/strong>\u00a0<\/span><\/p>\n

Initial result of test in effect of wood preservatives extracted from Pterocarya stenoptera<\/em>s\u2019leaf, Melia azedarach<\/em>s\u2019seed, Milletia ichthyochtona<\/em>s\u2019seed, Azadirachta Indica<\/em>s\u2019seed and Dioscorea cirrhosa<\/em>s\u2019bulb with Coptotermes formosanus <\/em>has shown that w<\/em>ood preservatives extracted from from Pterocarya stenoptera<\/em>s\u2019leaf and Melia azedarach<\/em>s\u2019seed have low effect against Coptotermes formosanus<\/em>; w<\/em>ood preservatives from Azadirachta Indica<\/em>s\u2019seed and Dioscorea cirrhosa<\/em>s\u2019bulb have average effect as wood samples are soaked by dipping method and have high effect as wood samples are soaked by common dipping method with the solution concentration of over 4% and wood preservatives extracted from Milletia ichthyochtona<\/em>s\u2019seed have good effect as it was aparted from by etanol solvent. <\/span><\/p>\n

Keywords: <\/strong>Coptotermes formosanus,<\/em> plant raw material<\/span>\u00a0<\/span><\/strong><\/p>\n

9. Results of test in effect of anti – <\/strong>mildewy<\/strong> presevative chemical use for fine arts and handicraft Products made from Calamus<\/em> and Ampelocalamus<\/em><\/strong><\/span>\u00a0<\/span><\/strong><\/p>\n

Hoang Thi Tam<\/span><\/strong><\/p>\n

Forest<\/em> Products Preservation Research Division<\/em><\/span><\/p>\n

Forest Science Institute of <\/em>Vietnam<\/em><\/span><\/p>\n

Summary<\/span><\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span>I<\/span><\/p>\n

n the area of fine arts and handicraft production, due attention should be paid to keeping raw material and product from mildewy damaging. Main content of presevative chemicals includes NaF + Na\u00ad2<\/sub>B4<\/sub>O7<\/sub> and KAA \u2013 Antiblu CC 55 SC (Cholorothallonil 45% + Carbendazim 10%) which were tested in effect anti-mildewy for Calamus<\/em> and Ampelocalamus <\/em>raw material. The results defined solution concentration of presevative chemicals and suitable preservation requirements for fine arts and handicraft products made from Calamus<\/em> and Ampelocalamus<\/em>. <\/span>\u00a0<\/span><\/strong>Keywords: <\/strong>\u00a0Anti-mildewy presevative chemicals for Calamus<\/em> and Ampelocalamus<\/em>, fine arts and handicraft <\/span>\u00a0<\/span>\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

1. A Newly Recorded Species of Schizostachyum Nees Genus (Poaceae) \u2013 Schizostachyum chinense Rendle for Vietnam\u2019s Flora\u00a0 Nguyen Hoang Nghia, Tran Van Tien Forest Science Institute of Vietnam\u00a0 Summary\u00a0 Schizostachyum chinense Rendle has natural distribution in high mountain forests of China and Vietnam. The species were found in evergreen broad-leaved forests in Hoang Lien National […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[17],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1018"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/comments?post=1018"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1018\/revisions"}],"predecessor-version":[{"id":1670,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1018\/revisions\/1670"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/media?parent=1018"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/categories?post=1018"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/tags?post=1018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}