Hasil Pencarian  ::  Simpan CSV :: Kembali

"Telah dilakukan penelitian untuk mengetahui keberadaan fungi mikoriza di dalam jaringan akar Dendrobium crumenatum, Dendrobium cucullatum, dan Dendrobiumanosmum. Metode yang digunakan adalah pemanasan akar dengan KOH dan freehand sections. Hasil penelitian menunjukkan fungi mikoriza ditemukan di dalam selsel yang telah terdiferensiasi dan tidak ditemukan ditemukan di dalam selsel yang belum berdiferensiasi, yaitu pada bagian ujung akar. Fungi mikoriza ditemukan di dalam jaringan eksodermis, korteks, endodermis, dan stele dalam bentuk peloton. Persentase kepadatan fungi tertinggi terdapat pada akar remaja ketiga spesies Dendrobium, yaitu 43,1%; 44,16%; dan 38,42%; dan pada spesies Dendrobiumcrumenatumsebesar 41,31%.

---

This research is aimed to understand the presence of mycorrhizal fungi in root tissues of Dendrobiumcrumenatum, endrobiumcucullatum, and Dendrobium anosmum. The methode are used heating roots within KOH 10% and freehand sections. The results are showing that the mycorrhizal fungi is founded inside differentiated cells and not founded inside undifferentiated cells, which is root tip. The mycorrhizal fungi are founded inside exoderm, cortex, endoderm, and stele. Percentage of highest density of mycorrhizal fungi found in intermediate roots of Dendrobiumspecies, that are 43,1%; 44,16%; and 38,42%; and on the species of Dendrobiumcrumenatum, that is 41,31%. "

"ABSTRAKPenggunaan fungisida bertujuan untuk melindungi benih dari serangan cendawan patogen penyebab penyakit sehingga benih dapat disimpan lama serta memberantas cendawan penyebab penyakit pada tanaman.Dua macam penelitian dilakukan di Laboratorium dan rumah kaca PAU IPB di Dermaga Bogor untuk mengetahui pengaruh fungisida folirfos pada beberapa konsentrasi (0,04%, 0.12% dan 0,20%) serta fungisida ridomil pada konsentrasi 1,16%, 1,54% dan 2,31%.Penelitian pertama dilakukan untuk mengetahui pengaruh fungisida terhadap perkecambahan benih jagung SD II dan perkecambahan spora cendawan mikoriza arbuskula. Metode yang digunakan adalah rancangan acak lengkap (RAL) dengan 3 ulangan.Hasil penelitian menunjukkan bahwa penggunaan fungisida folirfos pada konsentrasi rendah, sedang dan tinggi tidak menghambat perkecambahan benih jagung dan perkecambahan spora Gigaspora rosea serta perkecambahan Glomus manihotis. Penggunaan ridomil menghambat perkecambahan benih jagung, tetapi tidak menghambat perkecambahan spora Gigaspora rosea dan Glomus manihotis.Penelitian kedua untuk mengetahui pengaruh fungisida terhadap infeksi spora CMA pada akar tanaman jagung dan jumlah spora CMA pada tanah basah dan kering bekas pertanaman jagung dengan metode rancangan acak lengkap (RAL) dengan 3 ulangan. Pengaruh fungisida dan mikoriza terhadap jumlah daun dan tinggi tanaman jagung menggunakan rancangan acak lengkap (faktorial) dengan 3 ulangan.Hasil penelitian menunjukkan bahwa penggunaan fungisida tidak berpengaruh terhadap infeksi CMA pada akar tanaman jagung dan jumlah spora CMA pada tanah basah dan tanah kering. Kombinasi perlakuan fungisida dan spora CMA juga tidak berpengaruh terhadap jumlah daun dan tinggi tanaman jagung.Dari hasil penelitian ini dapat disimpulkan bahwa penggunaan fungisida folirfos dapat diberikan pada benih jagung dan pada spora Gigaspora rosea dan Glomus manihotis, sedangkan fungisida ridomil tidak dapat diberikan pada benih jagung, namun dapat diberikan pada spora Gigaspora rosea dan Glomus manihotis.Untuk keberadaan CMA pada tanaman jagung penggunaan fungisida tidak mempengaruhinya. Sedarigkan jumlah dan tinggi tanaman jagung tidak dipengaruhi oleh penggunaan fungisida dan mikoriza.

---

ABSTRACT

One of the purposes of using fungicides is to protect seeds against the attack of pathogenic fungi that cause diseases, so that seeds can be stored longer and fungi that cause disease can be eliminated.

Two experiments were performed in a green house of PAU IPB Bogor, Dermaga, to find out the influences of folirfos fungicide with low concentration (0.04%), medium concentration (0,12%) and high concentration (0,20%), and ridomil fungicide with low concentration (1,16%), medium concentration (1,54%) and high concentration (2,31%) to SD II variety of sweet corn seed germination, to the spore germination of vecsicular - arbuscular (VA) mycorrhizal fungi, Gigaspora rosea and Glomus manihofis, VA mycorrhizai fungi infection on roots, the number of VA mycorrhizal fungi spores on wet soil and dry soil, the number of leaves and the height of corn trees.

The first experiment was performed to find out the influences of folirfos fungicide and ridomil to corn seeds germination and germination of VA mycorrhizal fungi spores.

The results showed that the use of folirfos fungicide with low, medium and high concentrations did not inhibit the the germination of corn seeds, whereas ridomil fungicide with low, medium and high concentrations inhibited the germination of corn seeds. For the germination of Gigaspora rosea, folirfos fungicide with low, medium and high concentrastiens did not inhibit the germination of Gigaspora rosea, whereas ridomil fungicide with medium and high concentrations did not inhibit the germination of Gigaspora rosea either. Ridomil fungicide with low concentration (F4) was still able to increase the germination of Gigaspora rosea amounting to 64,16%, whereas for the germination of Glomus manihofis, the use folirfos and ridomil fungicide could increase the germination of Glomus manihofis spores. Ridomil fungicide with medium concentration (F5) was still able to increase the germination of Glomus manihotis spores amounting to 22,5%.

The second experiment was performed to find out the influences of folirfos fungicide to the VA mycorrhizal fungi on roots of corn trees, and the amount of VA spores on wet soil and dry soil which were previously planted with corn trees, as well as the influences of both fungicides and a mycorrhizal inoculum to the number of leaves and the height of corn trees.

The results showed that folirfos fungicide and ridomil did not influence the infection of VA mycorrhizal fungi on the roots of corn trees and the amount of VA spores on wet soil and dry soil. The combination of treatment of fungicide and VA spores did not significantly influence (p>0,05) the number of leaves and the height of corn trees, 1 can be concluded, from the fisrt experiment, that the use of folirfos fungicide with any level of concentration can be given to the seeds of corn because it did not inhibit germination, whereas ridomil fungicide with low, medium and high concentrations can not be given to the seeds of corn because it inhibit germination. As for the germination of VA mycorrhizal fungi, ridomil fungicide with low concentration (F4) can be given to Gigaspora rosea, because the spores were still able to germinate up to 64,14%.

From the second experiment I can conclude that folirfos fungicide as well as ridomil fungicide with any level of concentration can be used for corn trees containing mycorrhizal fungi, because both fungicide did not influence the existence of VA mycorrhizal fungi on the trees, the number of leaves as well the height of the corn trees."

"Penyusunan edisi teks dan analisis naskah terhadap Hikayat Abu Nawas Br 429 pada bulan September 2007 sampai Maret 2008, tujuannya ialah untuk menyajikan edisi teks, yaitu transliterasi dan analisis naskah yang dapat dibaca oleh masyarakat umum mengingat bahasa yang digunakan dalam naskah tidak begitu dikenal luas. Selain itu, penelitian ini juga bertujuan untuk memaparkan kritik sosial yang terdapat dalam naskah."

"This article focuses on the organization for security and cooperation in Europe (OSCE) that truly cares on human rights protection in Europe, particularly after the fall of the communist countries in the east of Europe and the Soviet Union. This article also describes the background of human rights tradition and its development up till the end of the 20 th century in Europe. It aims to show that human rights have been a central issue and become an important phenomenon in Europe, which are always taken into account by the Europe council and other European institutions."