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All Journal JURNAL PERBENIHAN TANAMAN HUTAN
Dede J. Sudrajat
Balai Penelitian dan Pengembangan Teknologi Perbenihan Tanaman Hutan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences

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Characterization of Early Growth of Several Families of Manglid on Progeny Test at Sukamantri, Ciamis District Asep Rohandi; Dede J. Sudrajat
Jurnal Perbenihan Tanaman Hutan Vol 7, No 2 (2019): Jurnal Perbenihan Tanaman Hutan
Publisher : Forest Tree Seed Technology Research & Development Center (FTSTRDC)/ Balai Penelitian dan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (274.502 KB) | DOI: 10.20886/bptpth.2019.7.2.87-100

Abstract

One of the obstacles in the development of private forest of manglid (Magnolia champaca (Linn.) Baill ex Pierre) is the large diversity of growth in the field. Therefore, information on morphological characteristics as a quality manglid character with high productivity is needed. This study aims to characterize the early growth of several manglid families in progeny test at Sukamantri, Ciamis District. The experimental design used was a completely randomized block design consisting of 42 families from Ciamis, Tasikmalaya, Sumedang and Majalengka. Each family consists of 3 plants (3-tree plot) and 7 replications (blocks). The results showed that the growth characteristics of manglid at 1 year old had a fairly large diversity (17.96 percent−24,70 percent). The characters of the height and stem diameter have the strong positive correlation with the crown width so that the characters can be used as the criteria for selection of high productivity manglid genotypes. Families from Ciamis (101 and 104) have superiority in the character of branch-free height and total height, while families 218 (Tasikmalaya) and 406 (Majalengka) have advantages in stem diameter character. These families are quite potential as genetic sources to be developed even though they still need further evaluation.
RESPON MORFOFISIOLOGI DAN SENSITIVITAS LIMA JENIS TANAMAN HUTAN TERHADAP CEKAMAN KEKERINGAN DAN GENANGANRINGAN DAN GENANGAN Naning Yuniarti; Yossa Istiadi; Dede J. Sudrajat
Jurnal Perbenihan Tanaman Hutan Vol 10, No 1 (2022): Jurnal Perbenihan Tanaman Hutan
Publisher : Forest Tree Seed Technology Research & Development Center (FTSTRDC)/ Balai Penelitian dan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/bptpth.2022.10.1.101-117

Abstract

Gagalnya penanaman di lapangan diantaranya akibat bibit jenis-jenis tanaman hutan tidak mampu beradaptasi terhadap cekaman kekeringan dan genangan. Penelitian ini bertujuan untuk menganalisis: (1) Pengaruh perlakuan cekaman lingkungan dan jenis tanaman terhadap morfologi bibit tanaman, (2) Pengaruh perlakuan cekaman lingkungan dan jenis tanaman terhadap sensitivitas tanaman, dan (3) Respon sensitivitas jenis tanaman berdasarkan Indeks Sensitivitas. Jenis yang digunakan yaitu kayu putih (Meulaleuca cajuputi), matoa (Pometia pinnata), balsa (Ochroma pyramidale), eboni (Diospyros celebica) dan meranti tembaga (Shorea leprosula).  Perlakuan cekaman menggunakan 5 perlakuan, yaitu kapasitas lapang 100%, 75%, 50%, 25%, dan perlakuan genangan.  Hasil penelitian menunjukkan bahwa: (1) perlakuan cekaman lingkungan dan jenis tanaman berpengaruh terhadap semua respon pertumbuhan morfologi bibit,  (2) perlakuan jenis tanaman berpengaruh terhadap sensitivitas tanaman, dan (3) kayu putih termasuk jenis yang peka terhadap kekeringan tetapi termasuk jenis yang toleran terhadap genangan.  Balsa merupakan jenis yang yang peka terhadap kekeringan dan genangan.  Meranti tembaga adalah jenis yang toleran terhadap kekeringan tetapi termasuk jenis yang peka terhadap genangan.  Namun eboni dan matoa termasuk jenis yang peka terhadap genangan. 
Co-Authors Asep Rohandi Evayusvita - Rustam Naning Yuniarti Yossa Istiadi