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All Journal EnviroScienteae PERTANIAN TROPIK
Etty Hesthiati
Fakultas Pertanian, Universitas Nasional
Agriculture, Biological Sciences & Forestry Environmental Science

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Ambang Batas Erosi Pada Suatu Daerah Aliran Sungai (Studi Kasus di DAS Tulis, Banjarnegara, Jawa Tengah) Beny Harjadi; Inkorena G. S. Sukartono; Etty Hesthiati
EnviroScienteae Vol 16, No 3 (2020): EnviroScienteae Volume 16 Nomor 3, November 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v16i3.9677

Abstract

Watersheds (DAS), which are river basins flowing in one outlet and limited by hills and mountains, often occur in land degradation or erosion. Erosion that occurs is said to be safe if it does not exceed the tolerable erosion or erosion tolerance limits or often called T-values. With regard to problems on sloping land in a watershed, the purpose of this study is to calculate the value of T-values or erosion tolerance limits. Calculation of T-values using the Hammer method (1981), namely by observing the factors of soil depth and effective depth of roots, and resources life of 300 or 400 years. T-value results are classified into 4 classes, namely (tons/ha/year) : (1) very low (<5), (2) low (5-25), (3) high (25-50), and (4) very high (> 50). The research location in the Tulis watershed is 12,750 ha in DTW (Reservoir Catchment Area) Mrica Banjarnegara. From the calculation of the T-value obtained results: very low 0.03% (3.8 ha), low 2.46% (313.7 ha), high 49.31% (6,287 ha), and very high 48.2% (6,145.5 ha).
Morphological Characteristic of Apple Velvet (Diospyros blancoi) at Germplasm Garden of LIPI Cibinong Collection Puspita Deswina; Novia Delliasari Aliyya Az Zahra; Etty Hesthiati Hesthiati
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (536.138 KB) | DOI: 10.32734/jpt.v6i3.3165

Abstract

Apple velvet (Diospyros blancoi) is one of the local fruits which classified as a rare planteven it has high economic value. Apple velvet has various morphology that needsselection from any various characters to identify the most superior character and hashigh potential to be developed. The analysis of diversity from one population can beidentified to know the morphology character from the plant. The commonly usedcharacteristics include tree trunks, leaves, flowers, fruits, and seeds. This study wasconducted using the quantitative and qualitative methods the result of the characterizedplants showed that the apple velvet plants in Germplasm Collection Garden of LipiCibinong have the average height between 3.5-15 m, stem diameter between 14.1-72.29cm has no shapes of leaves such as oval and wide oval. White flower crown, 2 shapes offruits such as round and oval pattern, 2 shapes of seeds such as elliptic and biconvex.Keywords: apple velvet plants, characterization, rare plant
Co-Authors Beny Harjadi Inkorena G. S. Sukartono Novia Delliasari Aliyya Az Zahra Puspita Deswina