Browsing by Author "Susanto, Doni"

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    PERBANYAKAN ANGGREK MACAN(Grammatophyllum scriptum (L.) Blume) SECARA IN VITRO DARI EKSPLAN TUNAS PADA MEDIA VACIN AND WENT
    (2016-01-28) Susanto, Doni; Isda, Mayta Novaliza; Fatonah, Siti
    Grammatophyllum scriptum (L.) Blume is an orchid species with threatened occurance in its natural habitat. In order to maintain the occurance of this species, it is necessary to conduct conservation efforts such as using in vitro culture technique. This study aimed to determine the best concentration of coconut water as well as its combination with BAP in the bud propagation of G. scriptum, using bud explants produced from in vitro culture. This study used a completely randomized design (CRD) with giving of various concentrations of coconut water treatment or in combination with BAP. The results showed that coconut water treatment or in combination with BAP could form buds and roots with a percentage of 100%. The coconut water treatment or in combination with BAP significantly affected the number of buds. The treatment of 1 mg/l BAP combined with 60% coconut water produced the highest number of shoots is (2.20).
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    Water Quality Monitoring Of Subayang River And Environmental Education In Bukit Rimbang Bukit Baling Wildlife Reserve
    (wahyu sari yeni, 2018-09-19) Susanto, Doni; Haryanto, Agus; Purwoko, Adi
    Rivers have a very strategic role in human life and other living things. In general, the Subayang River is in a clean condition, showing a harmonious community life. In Rimbang Baling river has an important function in various aspects of life, ranging from bathing, washing, irrigation, tourist areas and major public transportation routes. Currently the Subayang rivers are facing various threats such as gold mining, land conversion and deforestation. This study aims to determine the condition of water quality in subayang river from time to time and provide knowledge to the community around the Bukit Rimbang Bukit Baling Wildlife Reserve. This water quality observation is done once every month using physical parameters (temperature, conductivity and turbidity value) and chemical water (pH, DO water, salinity). This research was conducted in subayang river with three observation points from upstream, middle and downstream. Observational data showed that the quality of water in subayang is still in good condition. This is seen from the observation data that is still within the range of quality standards in accordance with Government Regulation No.82 of 2001. In addition, the resulting data is also submitted to the community and students who visit the Fresh Water Laboratory in order to maintain this condition and minimize pollution that can affect on the water quality of the river