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All Journal JURNAL PEMULIAAN TANAMAN HUTAN
Siti Husna Nurrohmah
Balai Besar Penelitian Bioteknologi dan Pemuliaan Tanaman Hutan Yogyakarta
Agriculture, Biological Sciences & Forestry

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PENGARUH ABU VULKANIK PADA PERTUMBUHAN, LUAS SERANGAN DAN INTENSITAS SERANGAN KARAT TUMOR PADA SEMAI SENGON Siti Husna Nurrohmah; Agus Wahyudi; Liliana Baskorowati
Jurnal Pemuliaan Tanaman Hutan Vol 8, No 2 (2014): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.373 KB) | DOI: 10.20886/jpth.2014.8.2.93-107

Abstract

The study aimed to examine the effect of volcanic ash on growth, disease incidence and severity of gall rust on sengon seedlings. Treaments were used compound af volcanic ash and planting medium with the comparison of 0:4 (M1), 1:3 (M2), 1:1 (M3), 3:1 (M4) and 4:0 (M5). Growth parameters including height, number of leaves, and the level of chlorophyll were measured. Artificial inoculation using fresh spore of Uromycladium tepperianum were applied 3 times: at the first, fourth and seven days after the second leaves of seedlings emerged, then the gall rust disease symptom were scored weekly for a month. The results showed that seedlings exhibited treatment M1 and M2 more optimal growth than the others. However, sengon with higher concentration volcanic ash performed the slowest growth compared to other treatments. Disease incidence and severity were ranged of 0-80% and 0-24%. Seedling sengon with treatment M2, M3 and M5 emerged the symptoms of gall rust however, seedlings with treatments of M1 and M4 did not show the symptomps.
UJI INKOMPATIBILITAS SOMATIK DAN PERTUMBUHAN JAMUR GANODERMA DARI KEBUN BENIH GENERASI PERTAMA Acacia auriculiformis DI WONOGIRI, JAWA TENGAH Siti Husna Nurrohmah; Nur Hidayati
Jurnal Pemuliaan Tanaman Hutan Vol 8, No 1 (2014): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2014.8.1.14-29

Abstract

Seed orchard A. auriculiformis F1 at Wonogiri, Central Java has attacked by ganoderma caused root rot. To determine the genetic variation, the pattern of spread of ganoderma necessary to somatic incompatibility test and measure the growth. This study used 8 isolates of the fungus ganoderma. Fungi were grown on PDA (Potato dextrose agar), made parental isolates and paired with each other. The results showed that all pairings indicated incompatible reactionsm except self pairings. All self-pairings showed compatible reactions that indicated by miycelia merged on PDA forming a single colony. Incompatible reaction zone is characterized by sparse zone, demarcation line and pigmentation. The results of somatic incompatibility test, ganoderma have different genotypes or it is not a single colony. The result indicates that the distribution of root rot in Seed orchard A. auriculiformis F1 at Wonogiri, Central Java not only occured by root to root contact.
Co-Authors Agus Wahyudi Liliana Baskorowati Nur Hidayati