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Pola Pertumbuhan Bibit Anggrek (Dendrodium sp.) Dalam Tahapan Aklimatisasi Pada Pengaruh Naungan dan Media Tanam Diana, Susanti; Sakalena, Firnawati; Danial, Ekawati; Yulhasmir, Yulhasmir; Yasa, Adiran Putra; Meiwinda, Eka Rizki; Zairani, Fitri Yetty; Sebayang, Nico
Jurnal Penelitian Pertanian Terapan Vol 24 No 4 (2024)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v24i4.3718

Abstract

The research was conducted at the Experimental Garden of the Faculty of Agriculture, Baturaja University. Ogan Komring Olu Regency. The materials used were: Dendrobium sp orchid seedlings, charcoal, ferns, coconut fiber. The tools used were plastic/paranet, 7 cm diameter plastic pots. ruler, pot rack, treatment labels, stationery, and cameras. The study used a Randomized Block Design (RAK). The factorial treatment consisted of a combination of Shade (N), and planting media composition (M), the combination of Shade (N) consisted of 3 levels and the composition of the planting media consisted of 3 levels, the treatment was repeated three times so there were 27 combinations. Each treatment consisted of 5 plants with five sample plants. The variables observed were the percentage of growth, plant height, number of leaves, number of roots, root length, and wet weight of the plant. From the results, it was obtained that the average vegetative appearance of dendrobium orchid seedlings from the shade and planting media treatments showed more vigorous growth than without shade. The average growth of shaded seedlings was higher than without shade. Growth was higher in 50% shade. The average growth of orchid seedlings was higher in coconut fiber, fern, and rice husk charcoal (1:1:1) planting media except for leaf chlorophyll content. Correlation regression testing of the percentage of survival determined plant height by 0.55. number of leaves 0.19, dry plant weight 0.57, root length 0.005, number of roots 0.63, and leaf chlorophyll content 0.41. Based on the coefficient of determination (R2), the percentage of plant growth correlated with the number of roots, dry plant weight and plant height. The conclusion of this study is based on the plant growth pattern, the use of 50% shade and the use of coconut fiber, fern, and rice husk charcoal (1:1:1) planting media is a better treatment for the growth of Dendrobium sp. Orchids. The percentage of survival determined plant height by 0.55. number of leaves 0.19, dry plant weight 0.57, root length 0.005, number of roots 0.63, and leaf chlorophyll content 0.41. From the results of the determination coefficient (R2), it can be seen that the percentage of plant growth is correlated with the number of roots, dry weight of the plant and plant height.
Identifikasi Beberapa Aksesi Jarak Pagar (Jatropha curcas L.) Melalui Analisis RAPD dan Morfologi Diana, Susanti; Wijaya, Andi; Lakitan, Benyamin; Surahman, Memen
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 2 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.539 KB) | DOI: 10.24831/jai.v37i2.1410

Abstract

The objective of this research was to study and cluster of Jatropha germplasm belonging to University of Sriwijaya. This research was conducted from September 2007 until July 2008. The research used 14 accessions of Jatropha taken from some regions in Indonesia, namely: Komering, Palembang, Yogyakarta, Indralaya, ATP2, Pontianak, Lahat, Pagaralam, Curup, Lampung, Medan Aceh Besar, Pidi and Gorontalo. Accessions of Jatropha curcas L. were planted at Agro Techno Park (ATP) Bakung village, Indralaya Utara district Ogan Ilir, South Sumatera using Randomized Complete Block Design. RAPD analysis using 20 primers was done at RGCI (Research Group on Crop Improvement), Bogor Agricultural University. Dendrogram based on RAPD analysis produced five groups that were: the first group was Komering, Lahat, Pidi, Indralaya, Aceh Besar, Pontianak and Curup. The second group was Palembang and ATP2. The third group was Pagaralam, Gorontalo, and Medan. Lampung was included in to fourth group. The fifth group was Yogyakarta. Dendrogram from morphological marker had also five groups. First group was: Komering, Indralaya, Pontianak. Lahat, and Pagaralam. Second group was: Palembang, Lampung, Pidi, Medan, and ATP2. Third group was: Curup. Fourth group was: Yogyakarta and Gorontalo. Fifth group was: Aceh Besar. The difference of member from each groups between dendrogram using RAPD and morphological markers indicated that the bands resulted from RAPD did not have relation with characters observed. Key words: Jatropha curcas L, RAPD analysis, Morphologycal marker, cluster analysis