Sartono Putrasamedja
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Penampilan Beberapa Klon Bawang Merah dan Hubungannya dengan Intensitas Serangan Organisme Pengganggu Tumbuhan Putrasamedja, Sartono; Setiawati, Wiwin; Lukman, L; Hasyim, Ahsol
Jurnal Hortikultura Vol 22, No 4 (2012): Desember
Publisher : Indonesian Center for Horticultural Research and Development

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Abstract

Perkembangan varietas-varietas bawang merah di suatu daerah ditentukan oleh keserasian dengan lingkungan, potensi hasil, toleransi terhadap serangan organisme pengganggu tumbuhan (OPT), serta umur dan mutu hasil. Penelitian bertujuan untuk menguji penampilan beberapa klon bawang merah dan hubungannya dengan intensitas serangan OPT penting. Penelitian dilaksanakan di Brebes dan Tegal (Jawa Tengah) dari Bulan Juni sampai dengan September 2011. Perlakuan yang diuji ialah 10 klon bawang merah hasil silangan tahun 2004 dan 2005, serta dua varietas bawang merah sebagai pembanding (Bauji dan Bima Brebes). Rancangan percobaan yang digunakan ialah acak kelompok dan diulang tiga kali. Parameter yang diamati ialah pertumbuhan tanaman (tinggi tanaman, jumlah daun, dan jumlah anakan), hasil panen, dan serangan OPT penting. Hasil penelitian menunjukkan bahwa klon no. 2005/1 dapat beradaptasi dengan baik di Brebes dan Tegal, mampu menghasilkan produksi tertinggi masing-masing sebesar 9,95 dan 17,50 t/ha, mempunyai diameter umbi terbesar (1,87 dan 2,41 cm), bentuk umbi bulat, dan berwarna merah tua, sedangkan klon no. 2004/11 mempunyai pertumbuhan dan  produktivitas yang tinggi, relatif toleran terhadap serangan Spodoptera exigua, Alternaria porri, dan Colletotrichum gloeosporioides, diameter umbi (1,67 dan 1,96 cm), bentuk umbi bulat,  dan berwarna merah tua, sedangkan klon no. 2004/10 dan no. 2005/19 sangat rentan terhadap serangan hama S. exigua, penyakit A. porri, dan C. gloeosporioides. Klon-klon yang mempunyai tingkat serangan rendah/toleran terhadap OPT merupakan klon harapan bawang merah toleran/tahan OPT. Namun demikian, penggunaan pestisida sesuai dengan konsep pengendalian hama terpadu (PHT) masih tetap diperlukan terutama apabila serangan OPT tersebut mencapai ambang pengendalian yang ditetapkan. The development of shallots varieties in one location depends on the genetic adaptability, yield potential,  tolerance to pest and diseases, harvest date, yield and quality. The aim of study was to evaluate 10 clones and two local clones as check, Bima Brebes and Bauji were conducted in Brebes and Tegal (Central Java) from June to September 2011. The trial were laid out in a completely randomized block design and each treatment was replicated three times. The parameters used for evaluating these clones were plant height, no. of sprout,  no. of leaves, yield and pests and diseases incidence. The results showed that considering overall performance, clone no. 2005/1 gave the highest yield (9.95 and 17.50 t/ha), and diameter of bulb (1.87 and 2.41 cm) in Brebes and Tegal respectively, clone no. 2004/11 produced growth and good yield  and showed tolerance to Spodoptera exigua, Alternaria porri, and Colletotrichum gloeosporioides, bulb diameter (1.67 and 1.96 cm) with dark red color,  while clone no. 2004/10 and no. 2005/19 were identified as the most susceptible clones to S. exigua, A. porri, and C. gloeosporioides. This suggests that some of shallots clones could be good candidates for the new varieties of shallots. However, the use of pesticides in IPM concept were still needed especially if the incidence of pests and diseases reach the action threshold.
UJI PENDAHULUAN KLON-KLON BAWANG MERAH ( Allium ascollonicum L.) First screening at shallot clones (Allium ascollonicum L.) Putrasamedja, Sartono
Agrin Vol 14, No 2 (2010): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2010.14.2.111

Abstract

UJI PENDAHULUAN KLON-KLON BAWANG MERAH ( Allium ascollonicum L.)First screening at shallot clones (Allium ascollonicum L.) ABSTRACT.Research was canducted same information candidat superior some clone from hibriditation theexperimental, experiment was carried out at experimental garden of districk farmer Kramat-Tegal, Central Java(6 m masl) from April to June 2007. The experiment was arranged. Randomised Block Design (R.B.D) with thosereplication. Clones to experiment contain 13 treatmen, clone 2, clone, clone3, clone5, clone6, clone7, clone11,clone12, clone21,clone24, local cultivity of Bauji, Bima Brebes and Phillipina to control. The result that clone 4to hights potential of product 18,446 ton/Ha, clone 7, clone 11 and clone 21 haved average of bulp diameter2,5cm and clone 3 haves 6 of sprout.Key words: cultivar, first of screening, clone, hibriditation.
UJI PENDAHULUAN KLON-KLON HASIL SILANGAN BAWANG MERAH PADA MUSIM PENGHUJAN DI LEMBANG Putrasamedja, Sartono
Agrin Vol 15, No 1 (2011): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2011.15.1.116

Abstract

Penelitian bertujuan untuk mendapatkan beberapa klon yang dapat beradaptasi tinggi dan berproduksibaik. Materi yang dicoba terdiri dari sembilan perlakuan dan tiga varietas 2003/12, 2003/15, 2003/16, 2003/17,2003/18, 2003/23, 2003/24, 2003/26, 2003/27 serta Betok, Bauji dan Bima Brebes. Rancangan percobaan yangdigunakan adalah Rancangan Acak Kelompok masing-masing perlakuan diulang 3 kali. Penelitian dilaksanakandikebun percobaan Balitsa pada ketinggian 1250 m dpl dengan jenis tanah Andosol ph 5,1 – 6,2. Hasil penelitianmenunjukan bahwa klon 2003/18 mampu beradaptasi dengan produksi 6,517 ton/Ha dengan jumlah anakan rataarat8 anakan dan klon 2003/24 dengan produksi 6,317 ton/Ha dengan jumlah anakan rata-rata 9 anakan.Kata kunci : bawang merah, persilangan, klon. ABSTRACTMaterial to fridl nine clonal and tree local varieties to control 2003/12, 2003/15, 2003/16, 2003/17,2003/18, 2003/23, 2003/24, 2003/26, 2003/27 and Betok, Bauji, Bima Brebes. The objective of this research wasto evaluation the adaptation and to assess the shallot clone performance to adaptation to hight please and thanclonal selected to use follow evaluate the adaptation trial were changed in condomised black design with treeregulation were planted at the experimental garden at Balitsa ata the hight 1250 m from sea level at theAndosail ph 5,1 – 6,2. The result showed that cloons 2003/18 good performance potential product : 6.517ton/Ha and average 8 sprout every hill and cloon 2003/23 : 6, 317 ton/Ha and 9 sprout every hill.Key word : shallot, hibridization clone