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      Efektivitas matriconditioning plus agens hayati dalam pengendalian patogen terbawa benih, peningkatan vigor dan hasil padi

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      Abstract (62.22Kb)
      Date
      2009
      Author
      Yukti, Amiyarsi Mustika
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      Abstract
      Penelitian ini bertujuan untuk mengembangkan teknik inovatif perlakuan benih secara biologis menggunakan agens hayati yang diintegrasikan dengan matriconditioning untuk dapat mengendalikan patogen terbawa benih sekaligus mencegah penyebaran penyakit, serta meningkatkan vigor benih, pertumbuhan tanaman dan hasil padi. Penelitian ini menggunakan dua sampel benih padi varietas IR-64 yang berasal dari PT. Sang Hyang Seri, Subang, Jawa Barat. Benih Lot I dipanen pada 6 Juni 2007, memiliki nilai daya berkecambah 88 %, kecepatan tumbuh 13.80 %/etmal dan indeks vigor 0 %, dikategorikan sebagai benih vigor sedang. Benih Lot II dipanen pada 10 September 2007, memiliki nilai daya berkecambah 97 %, kecepatan tumbuh 17.14%/etmal dan indeks vigor 70%, dikategorikan sebagai benih vigor tinggi. Pengamatan cendawan secara morfologi mengidentifikasi tiga patogen terbawa benih untuk vigor sedang (Alternaria padwickii, Drechslera oryzae, and Fusarium moniliforme) dan dua patogen terbawa benih untuk vigor tinggi (A. padwickii and D. oryzae). Berdasarkan pengujian morfologi dan biokimia (gram, oksidase, hidrolisa pati, fluoresen, dan arginin) ditemukan tiga jenis bakteri patogen terbawa benih, yaitu Xanthomonas oryzae pv. oryzae, Xanthomonas campestris pv. oryzicola dan Pseudomonas avenae.
       
      The objective of the experiment was to develop technique of biololgical seed treatment by using biololgical agent incorporated in matriconditioning as to control seed borne pathogens and to improve seed vigor, plant growth and yield. The experiment used two seed lots of rice cv. IR 64 obtained from PT. Sang Hyang Seri, Subang, West Java. The seed lot I, harvested on 6 Juny 2007, was assigned as medium vigor with 88% germination, 13.8%/etmal speed of germination and 0% vigor index. The seed llot II, harvested on 10 September 2007, was assigned as high vigor with 97% germination, 17.14%/etmal speed of germination and 70% vigor index.
       
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      http://repository.ipb.ac.id/handle/123456789/41238
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      • MT - Agriculture [3992]

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