38 research outputs found

    Cara Penyerangan Beberapa Spesies Jamur Tanah Terhadap Berbagai Stadia Globodera rostochiensis (Woll.)

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    Attacking Metode of Some Soil Fungal Species on Some Stadia of Globodera rostochiensis (Woll.)ABSTRACT

    EFEK PEMBERIAN PUPUK HAYATI KONSORSIUM TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SAWI (Brassica juncea L.)

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    Fertilizer is one of the important limited factor in plant cultivation system. Biofertilizer is a kind of fertilizer which improve nutrient availability in soil and subsequently plant yield. A research was carried out in village Waiheru, District Baguala, Ambon to determine the effect of different level of mixed biofertilizer on the growth and yield of caisim that grown on Alluvial. The research used Randomized Completely Block Design (RCBD) with three concentration of liquid biofertilizer, namely: 0.1%, 0.5% and 1%. Treatment control was without biofertilizer. The results showed that inoculation of liquid biological fertilizer at concentration of 1% improved growth and yield of caisim higher than the concentration of 0.1% and 0.5%. Inoculation of 1% biofertilizer increased the fresh weight of caisim shoot up to 37.36% compared to that of controls. While, fresh weight of caisim with biofertilizer of 0.1% and 0.5% was 24.52% and 28.94% respectively.Keyword: Ambon, Mixed Biofertilizer, Caisi

    PERBANYAKAN Trichoderma harzianum PADA MEDIA BERBASIS ELA SAGU

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    Trichoderma harzianum has been widely known as biological control agents of plant diseases. To obtain inoculum in large quantities waste agricultural products could be used as media. Ela sago is solid wastes originated from sago processing, contains C-organic, nitrogen, phosphorus, potassium, calcium, magnesium, as well as crude protein, fat, crude fiber, ash, cellulose, hemicellulose, lignin, and silica. The objective of this laboatory experiment was to determina the capacity of ela sagu in combination with rice bran and husks as T. harzianum inoculum production. The research was conducted in laboratorium Nemathology, Plant Pathology Agriculture Faculty of Pattimura University. The experiment was conducted from March to April 2014. The medium testedin this experiment were ela sago, ela sago + husk, ela sago + bran, ela sago + husk + bran, husk, bran, husk + bran, and corn. The experiment was set up by using a completely randomized design, replicated three times. The experimental results showed that the number of conidiumon mixed media ela sago + bran and ela sago + bran + husk reached up to 1011 per g media and significantly greater than that of ela sago, elasago + husk, Husk + bran, husk, bran, and corn media

    Perkembangan Alternaria solani pada Tiga Varietas Tanaman Tomat

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    ABSTRACTDevelopment of Alternaria solani in three tomato varietiesAlternaria solani is a fungal plant pathogen that attacks tomatoes, potatoes, eggplant and peppers. Yieldlosses cause by this pathogen, especially in tomatoes, can reach up to 86% depends on grown tomatovarieties. This reaseach was aimed to examine the development of A. solani infection on three differenttomato varieties of Tombatu, Tyrana and Permata. The study was designed using a randomized block designand the observations included the proportion of the disease and the rate of infection. Results revealed thatthe highest development of the fungus A. solani occurred in Tombatu variety that reached 0.8445 andindicated the highest infection rate of 0.0810 per unit per day.Keywords: Alternaria solani , tomatoes, Tombatu, Tyrana, PermataABSTRAKAlternaria solani merupakan salah satu jamur patogen yang menyerang tanaman tomat, kentang, terung dancabai. Kerugian yang diakibatkan khususnya kehilangan hasil pada buah tomat dapat mencapai 86% yangsalah satunya bergantung pada varietas tomat yang ditanam. Penelitian ini bertujuan untuk mengetahuibagaimana perkembangan penyerangan patogen jamur A. solani pada tiga varietas tanaman tomat yangberbeda yaitu Tombatu, Tyrana dan Permata. Penelitian dilakukan dengan menggunakan Rancangan AcakKelompok dengan pengamatan terhadap dua parameter yaitu proporsi penyakit dan laju infeksi penyakit.Hasil penelitian menunjukkan bahwa perkembangan jamur A. solani paling tinggi terjadi pada varietasTombatu yang ditunjukkan dengan proporsi penyakit yang lebih tinggi mencapai 0,8445 dan laju infeksiyang lebih cepat mencapai 0,0810 per unit per hari dibandingkan pada dua varietas yang lain.Kata Kunci: Alternaria solani, tomat, Tombatu, Tyrana, Permat

    STUDY OF CLASSISM AND CLASS-STRUGGLE IN CHARLES JOHNSON’S DREAMER

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    Dreamer is a novel published in 1998 by an African-American author named Charles Johson. This novel set in the Civil Rights era America in 1966. This novel told about Chaym Smith as a man who had a physical resemblance with Marthin Luther Jr. However, the issues of classism and class-struggle are portrayed in this novel especially in the figure of Chaym Smith who has a different standard of living from Marthin Luther King Jr. This research used qualitative method to analyze the novel. The theory used in this study is Marxist Criticism especially the issue of classism and class-struggle. This research analyzes the differences between the figures of Chaym Smith as a proletariat and Marthin Luther King Jr. as a bourgeois that have been potrayed in this novel. The result suggests that Chaym Smith belongs to the lower social class, he is poor and uneducated, that is why he can be simply controlled by the upper social class. Smith has to be perfectly the same with Marthin Luther King Jr in every part of King‘s life and that is the reason why Chaym Smith has been oppressed by the ideology of Marthin Luther King Jr. Moreover, King has a better standard of living than Smith. Thus, although they have a physical resemblance. The differences lead to the conflicts and clashes that also creat a class-struggle as depicted in the nove

    Optimasi Media Ela Sagu Dan Dedak Untuk Pertumbuhan Dan Produksi Jamur Volvariella sp.

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    Jamur Volvariella sp. berpotensi sebagai salah satu sumber pangan yang belum dibudidayakan oleh masyarakat. Jamur ini memiliki habitat khusus yaitu pada limbah olehan pati sagu yang dikenal dengan sebutan ela sagu. Tujuan  penelitian ini untuk mendapatkan konsentrasi dedak yang dapat ditambahkan pada ela sagu dan pada luasan permukaan media yang baik untuk pertumbuhan dan produksi jamur Volvariella sp. Penelitian merupakan percobaan dua faktor yaitu konsentrasi dedak dalam ela sagu yaitu 0%, 10%, 20%, dan 30%, dan luasan permukaan media tumbuh yakni 875 cm2 , 625 cm2, dan 375 cm2.  Penelitian dirancang menggunakan Rancangan Acak Lengkap (RAL) dengan tiga ulangan. Hasil penelitian ditemukan bahwa penggunaan ela sagu yang ditambahkan dengan dedak dan ditempatkan pada wadah dengan ukuran luas permukaan berbeda berpengaruh terhadap jumlah tubuh buah tumbuh, jumlah tubuh buah panen, dan bobot segar tubuh buah konsumsi, dan tidak berpengaruh terhadap diameter tubuh buah konsumsi, tinggi tubuh buah konsumsi, bobot rata-rata tubuh buah konsumsi. Ela sagu dengaan persentase dedak 10 % dan ditempatkan pada wadah dengan luas permukaan 875 cm2 lebih baik untuk meningkatkan  jumlah tubuh buah tumbuh dan tubuh buah panen jamur Volvariella sp

    UTILIZATION OF BIOFERTILIZERS AND ORGANIC MATERIALS ON GROWTH AND YIELD OF SWEET CORN (Zea mays saccharata)

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    Growth and production of corn plants require land with sufficient nutrients. Utilization of biological fertilizers and organic materials carried out with the aim of increasing the yield of corn. The treatments that were tried were the provision of compost, livestock manure, compost and livestock manure, each of which was added by spraying a consortium of biological fertilizer. The experiment was designed using a randomized block design with five replications. The results showed that the application of organic-based fertilizers affected plant height from 17 - 49 days after planting, weight of fruit with kelobot, weight of cob and ear length. Provision of compost or livestock manure and added with a biological fertilizer consortium by spray gives a higher effect compared to the provision of compost or livestock manure which is not added to the consortium of biological fertilizer. To increase the productivity of maize plants it is recommended to use a consortium of biological fertilizers applied by spraying at intervals of seven days until the plants are 49 days after planting.Pertumbuhan dan produksi tanaman jagung sangat membutuhkan lahan dengan kandungan unsur hara yang cukup. Pemanfaatan pupuk hayati dan bahan organik dilaksanakan dengan tujuan meningkatkan hasil tanaman jagung. Perlakuan yang dicobakan adalah pemberian kompos, kotoran ternak, kompos dan kotoran ternak yang masing-masing ditambahkan dengan penyemprotan pupuk hayati konsorsium. Percobaan dirancang menggunakan rancangan acak kelompok dengan lima ulangan. Hasil penelitian menunjukkan bahwa pemberian pupuk  berbasis bahan organik berpengaruh terhadap tinggi tanaman dari umur 17 - 49 hst, bobot buah dengan kelobot, bobot tongkol dan panjang tongkol. Pemberian kompos maupun kotoran ternak dan ditambahkan dengan aplikasi pupuk hayati konsorsium dengan cara semprot memberikan pengaruh lebih tinggi dibandingkan dengan pemberian kompos maupun kotoran ternak yang tidak ditambahkan dengan aplikasi pupuk hayati konsorsium. Untuk meningkatkan produktifitas tanaman jagung dianjurkan menggunakan pupuk hayati konsorsium yang diaplikasikan dengan cara semprot dengan interval tujuh hari sampai tanaman berumur 49 hst

    NITROGEN FIXING BACTERIA AZOTOBACTER AS BIOFERTILIZER AND BIOCONTROL IN LONG BEAN

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    Azotobacter is Plant Growth Promoting Rhizobacteria through the mechanism of nitrogen fixation and phytohormon production but this rhizobacteria has a role to control plant diseases. The objective of experiment was to evaluate the activity of Azotobacter as biofertilizers as well as biocontrol on long bean cultivation in damping off endemic land in Ambon city, Maluku Province. The field experiment was arranged in completely randomized block design. Inoculation of long bean by Azotobacter has been done by seed inoculation, soil inoculation before planting, and plant inoculation. Plants treated with Azotobacter received fertilizer NPK of ¾ or ½ dosage recommendation while control plants were received 100% NPK. Research showed that no differences between yield of long bean inoculated with Azotobacter sp +reduced doses of NPK with that of control plants. Any application method of Azotobacter inoculation lowered damping off diseases incidence significantly until 10 days after planting, but no effect of inoculation on late blight at 21 days after planting. This study confirmed that Azotobacter has dual activity to reduce the dose of NPK fertilizer and control damping off

    Penilaian Efektivitas Metabolit Sekunder Trichoderma harzianum dalam Menghambat Pertumbuhan Colletotricum capsici dan Cercospora capsici : Kajian In Vitro

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    The cultivation of chili plants is often faced with obstacles such as disease attacks, especially anthracnose disease caused by the fungus Colletotricum capsici and leaf spot disease caused by the fungus Cercospora capsici. This study aimed to determine the effective concentration of T. harzianum secondary metabolites (MSTh) in inhibiting the growth of Colletotricum capsici and Cercospora capsici in vitro. The experiments used various MSTh concentrations: 0%, 10%, 20%, 30%, 40%, and 50%. The research results found that administration of MSTh could inhibit the growth of Colletotricum capsici and Cercospora capsici in vitro. Giving MSTh at a concentration of 10% can significantly inhibit the growth of Colletotricum capsici and Cercospora capsici compared to without MSTh. The effective concentration indicated by the percentage value of inhibitory power and colony weight reduction is an MSTh concentration of 40% with a growth inhibition of Colletotricum capsici of 89.49% and an MSTH concentration of 50% with a growth inhibition of Cercospora capsici of 57.78%

    LIMBAH SAGU: POTENSI LOKAL UNTUK MEDIA PUPUK HAYATI

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    Sago starch production leaves solid and liquid wastes that has not been used optimally. Both organic substances still contains a lot of nutrients, and could be processed into raw material for bio-fertilizers media. Solid waste, known as ela sago, has been developed into compost while the liquid waste did not. The objective of this study was to verify volume ratio of liquid inoculant of Azotobacter chroococcum in solid inoculant produced from ela sago; and determine the concentration of sago waste water as a growth medium of biofertilizer A. chroococcum. This study confirms population of A.chroocccum and T. harzianum in ela sago compost reached 106 cfu/g and 108 cfu/g consecutively following enrichment with either 2% or 4% of A. chroococcum liquid inoculant. Sago wastewater can used support A.chroococcum growth. This study proved that waste from sago starch production could be used as a natural medium for biofertilizer
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