Agro Technology

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Browsing Agro Technology by Author "Ali, Muhammad"

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    In Vitro Antagonistic Examination Of Trichoderma pseudokoningii Rifai Againts Ganoderma boninense PAT.
    (2013-06-21) Saputra, Rachmad; Elfina S, Yetti; Ali, Muhammad
    The use of organic matters such as bagasse, rice husk, shrimp shell and dregs as a source of nutrients for Trichoderma pseudokoningii Rifai is very important. T. pseudokoningii are formulated in such matters expected to be used as a biological control agent against the Ganoderma boninense Pat. which causes stem rot disease in oil palm plantations. This study aimed to determine the effect of some organic matters and its combinations, and to get a suitable organic matters and its combinations in support the antagonist of T. pseudokoningii to inhibit G. boninense in vitro. This research has been conducted in the Laboratory of Plant Pathology, Agriculture Faculty, University of Riau which lasted for 4 months from May to August 2012. This study has been conducted using a completely randomized design consisted of 15 treatments (bagasse, rice husk, shrimp shell, dregs and its combination) and 3 replications. Data obtained from the observations were statistically analyzed using analysis of variance, followed by Duncan's New Multiple Range Test (DNMRT). The results indicated that there is an significant effects caused by some organic matters and its combinations on the antagonistic fungus T. pseudokoningii in inhibiting G. boninense in vitro. Rice husk, bagasse, bagasse+rice husks and bagasse+dregs gave a good ability to support the growth and ability of the fungus T. pseudokoningii to inhibit G. boninense compared with other organic matters composition. This research also indicated that the use of shrimp shell, bagasse+shrimp shell, rice husk+shrimp shell, shrimp shell+dregs and rice husk+shrimp shell+dregs causes the growth of fungus T. pseudokoningii fully inhibited.
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    Pengujian Beberapa Serbuk Daun Tumbuhan Sebagai Nematisida Nabati Terhadap Penyakit Bengkak Akar Oleh Meloidogyne spp. Pada Tanaman Tomat
    (2013-04-17) Sihombing, Nova Yanti; Ali, Muhammad; Puspita, Fifi
    knot disease caused by Meloidogyne spp. is one of important diseases on tomato plants. One of the alternative control is using leaf powder is nematisidal. The research has been conducted to study the effect of leaf powder plants as botanical nematiside on root knot disease caused by Meloidogyne spp. on tomato. The research was conducted at the Experimental Farm Technical Implementation Unit (UPT) and Laboratory of Plant Diseases Faculty of Agriculture University of Riau from April to September 2012. The treatments tested were: non-leaf powder (NO) leaf powder Tagetes patula (N1) Tagetes erecta leaf powder (N2); Azadiractha indica leaf powder (N3) and Chromolaena odorata leaf powder (N4). The data is analyzed by using the Analysis of Variance (ANOVA) and Duncan’s New Multiple Range Test (DNMRT) at level 5%.. The results showed that leaf powder gave some plants such as Tagetes patula, Tagetes erecta, Azadiractha indica and Chromolaena odorata could radious root disease caused by Meloidogyne spp. compared to the non-leaf powder of leaf powder. Azadirachta indica leaf powder provided better result in controling nematodes Meloidogyne spp. with disease intensity scale of 0.75 and the average population of the nematodes Meloidogyne spp. is 0.
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    Test Of Several Isolate Bacillus Sp Riau Origins And Variety of paddy (oryza sativa l.) Against bacteria xanthomonas oryzae pv. Oryzae Cause Bacterial Leaf Blight
    (2013-06-25) Asnur, Dila; Puspita, Fifi; Ali, Muhammad
    Xanthomonas oryzae pv oryzae is one of the bacteria causing-disease that can reduce rice production by 30%. To overcome this problem eco-friendly alternative to control by using biological agents such as Bacillus sp. The purpose of this research is to investigate the interaction between several isolates of Bacillus sp Riau origin. The research was conducted in a completely randomized design (CRD) experiment with factorial with 3 replications. The results showed that the interaction of Bacillus sp. origin and varieties of rice rhizosphere significantly affect the time symptoms appear early, and grain weight per plant. Combination of Bacillus sp. origin and varieties of rice rhizosphere Mira 1 provide initial symptoms appear slower, while a combination of Bacillus sp. origin of rice rhizosphere and Ciherang heavy grain yield per plant is better than the other treatments.
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    Uji Beberapa Konsentrasi Ekstrak Buah Mengkudu (Morinda citrifolia l.) Terhadap Jamur Patogen Tular Benih Cabai (Capsicum annuum l.) Dan Pengaruhnya Terhadap Daya Kecambah Benih
    (2013-01-23) Riki, Ahmad; Ali, Muhammad; Venita, Yunel
    The objective of this research is to observe the ability of some concentrations of fruit extract of noni in controlling seed borne fungal pathogens on red chili seeds to seed germination. The study has been conducted at the Laboratory of Plant Disease, Plant Breeding of Agriculture Faculty, Organic Laboratory of Mathematics and Sciences Faculty University of Riau from March to September 2012. The research was designed in Completed Random Design consisting of four treatments and five replications. The treatment were; without fruit extract of noni (M0), 10% concentration of fruit extract (M1), 20% concentration of fruit extract (M2), 30% concentration of fruit extract (M3). The parameters observed was percentage growth inhibition of fungus seed borne, percentage infection of fungi on seeds, percentage of seed germination on stencil paper and on topsoil. The data is analyzed by using the Analysis of Variance (ANOVA) and Duncan’s New Multiple Range Test (DNMRT) at level 5%. The result indicated that the application of fruit extract of noni depended on the applied of concentration, the higher the applied concentration, the more depressive on the seed borne fungus. The highest extract concentration (30%) gave the highest controlling effect on growth of seed borne fungal pathogens colony and the lower percentage of seed borne fungal pathogens infection, the highest controlling effect on percentage of chili seeds germination on stencil paper the application of concentration of fruit extract of noni wasn’t able to increase the percentage of chili seeds germination on topsoil.
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    Uji kemampuan Ekstrak Daun Beberapa Jenis Sirih (Piper sp.) Untuk Mengendalikan Jamur Patogen Tular Benih Kacang Tanah Dan Pengaruhnya Terhadap Daya Kecambah Benih
    (2013-07-06) Zahara, Nela; Ali, Muhammad; Puspita, Fifi
    This study has been conducted to obtain betel leaf extract that is able to control seed-borne fungal pathogens of peanuts and determine its effect on peanut seed germination. The research arranged out experimentally and used a completely randomized design (CRD), which consisted of 4 treatments and 5 replicates (without extract and some extracts of betel plant). The data obtained were statistically analyzed by analysis of variance and Duncan's New Multiple Range Test at 5% level. The results showed that the leaf extract of green betel, forest betel and the red betel could inhibit the growth of pathogenic fungi in vitro against fungi Rhizoctonia sp. Ie: 18.59%, 16.90% and 6.38% and the fungus Aspergillus sp. Ie: 32.08%, 37.53% and 33.03% comparing to no provision of betel leaf extract. Giving the leaf extract of green betel, forests betel and the red betel can also reduce the percentage of peanut seed-borne fungal infections attack by the fungus Rhizoctonia sp. Ie: 19.20%, 8.80% and 8.80% and by the fungus Aspergillus sp. Ie: 19.60%, 19.20% and 18.80% comparing to no betel leaf extract. Betel leaf extracts and without betel leaf extract resulted in a high percentage of normal seedlings (> 80%), but the red betel leaf extract gave lower seed germination than other betel leaf extract.