R. mucronata has been widely used as a traditional medicinal plant because it is capable of producing secondary metabolites such as tannins, alkaloids, terpenoids, sapponins and flavonoids. This study discusses the potential of leaf and stem bark as inhibitors of R. solanacearum with the concentrations of 5000 ppm, 10000 ppm and 20000 ppm, positive control (Chlorampenicol), and negative control (Ethanol 40%). The method used for the inhibitory assay uses the agar diffusion method. The results showed the moisture factor of leaves of R. mucronata (0.33g) stem bark (0.58g). The yield of leaf extract (17.61%) stem bark (7.85%). The percentage of inhibition showed that R. mucronata leaf extract had inhibition on R.
Abstract. Jannah N, Pharmawati M, Uslan. 2022. Genetic diversity of Sterculia quadrifida from Kupang based on ISSR profiles, stomatal density, and chlorophyll content. Biodiversitas 23: 2690-2698. This study investigated the genetic diversity of Sterculia quadrifida R.Br.or faloak based on Inter Simple Sequence Repeats (ISSR) molecular markers and determined stomatal density and chlorophyll content from several localities in Kupang District, East Nusa Tenggara, Indonesia. For genetic diversity analysis, samples were collected from the Oelsonbai forest area of Maulafa Sub-district, Kupang City, whereas for stomatal density and chlorophyll content analysis, samples were collected from areas with various degrees of anthropogenic activity from Kupang city. DNA was isolated using Cetyl Trimethyl Ammonium Bromide (CTAB) method and amplified by three ISSR primers (UBC 811, UBC 812, and UBC 815), whereas stomatal density was observed using a microscope and chlorophyll content was determined using a spectrophotometer. Genetic data were analyzed using the unweighted pair group method with arithmetic mean (UPGMA) method and Nei & Li coefficient similarity in the MVSP software. A total of 78 ISSR bands ranging from 320-3200 bp were obtained, where populations were divided into four main clusters and six sub-clusters, similarly having moderate heterozygosity (He=0.50) not clustered based on their geographical distribution. There was a difference in stomatal density and chlorophyll content, probably influenced by anthropogenic disturbances. A conservation action plan is required to ensure the S. quadrifida's survival in the future.
The existence of an Extraordinary School as one of the educational institutions that is specifically intended to educate children with special needs in reality is still not able to fully accommodate the education of children with special needs. The increasing number of children with special needs while the existence of Extraordinary Schools is limited in each district in Indonesia has caused many parents to send their children with special needs to formal education institutions, one of them in Madrasahs. This phenomenon requires Madrasas to adjust to their presence by becoming an institution that is friendly and inclusive of students whatever the conditions. One such effort is to develop an inclusive Madrasah curriculum that is a curriculum that suits the needs of children with special needs. The following article discusses the Adaptive Curriculum Development Model with a focus on discussion on Inclusive Madrasah Ibtidaiyah with the aim of developing an adaptive curriculum in which there are models of duplication, modification, substance and omission. All models of curriculum development can be an option to be implemented in an inclusive Ibtidaiyah Madrasah, depending on which model is considered the most appropriate for the conditions of students in Madrasas and which is possible to apply, this is because each Madrasah has different conditions between one and the other so they can implement a curriculum model that suits their students' needs.
Peningkatan hasil produksi di bidang pertanian sering mengalami permasalahan, terutama keberadaan hama. Salah satunya serangan hama Plutella xylostella terhadap tanaman kubis. Penanganan yang dilakukan para petani untuk mengatasinya dengan menggunakan insektisida sintetis. Namun, penggunaan insektisida sintetis dalam jangka panjang dapat menimbulkan pencemaran lingkungan. Sehingga, diperlukan alternatif lain seperti menggunakan insektisida nabati dari tumbuhan yang aman bagi lingkungan. Daun P. indica dan C. odorata merupakan daun yang memiliki potensi menjadi insektisida nabati karena mengandung senyawa aktif seperti flavonoid, alkaloid, steroid, tannin, saponin, dan minyak atsiri. Penelitian ini bertujuan untuk mengetahui pengaruh jenis ekstrak daun P. indica, C. odorata dan kombinasinya dengan konsentrasi, serta interaksi antara jenis ekstrak dan konsentrasi terhadap mortalitas larva Plutella xylostella. Penelitian ini merupakan penelitian eksperimen yang menggunakan rancangan acak lengkap (RAL) dua faktorial yaitu jenis ekstrak daun P. indica, C. odorata, dan kombinasinya serta menggunakan 4 jenis konsentrasi yaitu 8%, 10%, 12%, dan 14% dengan tiga pengulangan. Sehingga, terdapat 36 unit penelitian. Data yang diperoleh yaitu persentase mortalitas larva yang kemudian dianalisis menggunakan ANAVA dua arah lalu dilanjutkan uji duncan. Hasil penelitian menunjukkan bahwa terdapat pengaruh jenis ekstrak daun P. indica, C. odorata, dan kombinasinya terhadap mortalitas larva, terdapat pengaruh jenis konsentrasi terhadap mortalitas larva. Namun, tidak terdapat interaksi antara jenis ekstrak dan jenis konsentrasi. Semakin tinggi konsentrasi ekstrak, semakin tinggi mortalitas larva yang dihasilkan. Jenis ekstrak kombinasi daun P. indica dan C. odorata konsentrasi 12% dan 14% merupakan jenis ekstrak dan konsentrasi yang paling optimal terhadap mortalitas larva dengan persentase mortalitas 59,00% dan 66,14%.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.