EKSTRAKSI NEMATODA PDF

Current Issue. December Vol 23, No. Read issue. Author Guidelines. Author Fees.

Author:Mizil Faular
Country:Brunei Darussalam
Language:English (Spanish)
Genre:Science
Published (Last):23 September 2011
Pages:57
PDF File Size:11.6 Mb
ePub File Size:11.6 Mb
ISBN:826-6-88054-641-4
Downloads:46684
Price:Free* [*Free Regsitration Required]
Uploader:Bralrajas



Nematoda hawar daun Aphelenchoides fragariae merupakan salahsatu kendala dalam budidaya tanaman obat sambiloto Andrographispaniculata. Informasi tentang perilaku dan cara pengendalian nematodapada tanaman sambiloto masih sangat terbatas.

Dalam rangka mencari carapengendalian nematoda yang efektif, maka penelitian ini bertujuan untukmengetahui ekobiologi nematoda tersebut seperti kisaran inang, sumberinokulum, dan pestisida. Penelitian dilakukan di laboratorium, rumah kaca,dan kebun percobaan Balittro pada tahun Studi kisaran inangalami dilakukan dengan mengamati karakteristik gejala khas penyakit,ekstraksi, dan karakterisasi morfologi nematoda dari sampel daun-daungulma yang tumbuh di pembibitan dan pertanaman sambiloto.

Studi sum-ber penularan nematoda dilakukan dengan metode bioassay, yaitu denganmengamati gejala hawar daun dan jenis nematoda pada bibit sambilotoyang ditanam pada beberapa macam media tumbuh tanah steril dicampurdengan beberapa macam jenis bahan organik seperti pupuk kandang,kompos, pupuk organik, dan potongan daun-daun sambiloto sakit.

Sedangkan studi sensitivitas nematoda terhadap pestisida sintetik dannabati dilakukan di rumah kaca dan di lapang. Hasil penelitian menun-jukkan bahwa 6 jenis gulma, yaitu babadotan Ageratum conyzoides ,pulus hayam Acalypha lanceolata , calincing Oxalys sepium , gulmaBorreria sp. Bahan organik sepertipupuk kandang dan serasah daun sambiloto sakit dalam tanah merupakansumber penting inokulum A.

Perkembangan penyakit hawar daun berlangsung selama minggu setelah infeksi pertama. Penanaman bibit sehat, sanitasi kebun, penggunaan pupuk kandang yangbenar-benar matang, dan aplikasi pestisida merupakan faktor pentingdalam pengendalian penyakit hawar daun nematoda pada sambiloto. Kata kunci: Andrographis paniculata, sambiloto, nematoda hawar daun,Aphelenchoides fragariae, ekobiologi.

Leaf blotch nematode Aphelenchoides fragariae is one of the mostimportant constrains on cultivation of king of bitter plant Andrographispaniculata. Information on the bioecology and control method of thenematode is still limited. In relation to finding an effective control methodof the nematode, this study aimed to evaluate several bioecological factorsof the nematode, such as its host range, inoculums source, and sensitivityof the nematode to several chemicals.

The studies were conducted inlaboratory, green house, and experimental station of the IndonesianMedicinal and Aromatic Crops Research Institute in Naturalhost range of the nematode was studied by examining the typical diseasesymptoms on leaves of several weeds grown in the nursery and field of theking of bitter plants, followed with extraction and morphologicalexamination of nematodes.

Infection source of the nematode was carriedout by bioassay method using healthy king of bitter seedlings grown onsoil planting medium incorporated with suspected infection sources suchas animal manure, compost, organic fertilizer, and diseased leaf cutting ofthe plants.

Sensitivity of the nematode to several pesticides carbofuran,neem seed powder, neem seed extract, and cashew nut shell liquid wasconducted in the green house and field.

The results showed that six weedssuch as Ageratum conyzoides, Acalypha lanceolata, Oxalys sepium,Borreria sp. Organic animalmanure and infected fallen leaves of the king of bitter were importantsources of inoculums of A. Leaf blotch disease development occurred weeks afterfirst infection. Planting disease-free seedlings, sanitation, and application of well-decomposed animalmanure and certain chemical pesticides are important factors to control theleaf blotch nematode on king of bitter plant.

Key words: Andrographis paniculata, king of bitter, leaf blotchnematode, Aphelenchoides fragariae, bioecology.

HURGANITO II PDF

We apologize for the inconvenience...

.

LIBBA BRAY THE SWEET FAR THING PDF

.

DIVERSIFICAREA ALIMENTATIEI BEBELUSI PDF

.

Related Articles