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UJI EFEKTIFITAS AGENSIA HAYATI DALAM MENGENDALIKAN PENYAKIT LAYU BAKTERI Ralstonia solanacearum DAN MENINGKATKAN PERTUMBUHAN SERTA HASIL TANAMAN CABAI (Capsicum annum) Kasidal Kasidal; Noor Aidawati; Dewi Erika Adriani
EnviroScienteae Vol 15, No 3 (2019): EnviroScienteae Volume 15 Nomor 3, November 2019
Publisher : Universitas Lambung Mangkurat

Chili is an important commodity for most people, because of its function in terms of improving taste and appetite. Chili was seriously developed with the support of government funds for chili farmers. The development of chili plants, has enough obstacles, especially wich caused by plant disturbing organisms whether it is pests or diseases. The important organism that disturbs chili is wilting caused by Ralstonia solanacearum. In South Kalimantan, this disease reportedly attacked chilies spread in the districts of Banjar, Banjarbaru, Barito Kuala, Tapin, Hulu Sungai Tengah and Balangan with a cumulative attack area of 15,7 ha on 2017 (South Kalimantan BPTPH Database). This disease is important because of the nature of the attack which can cause the plants to wilt suddenly all part of the plant. Plants wich attacked by bacterial wilt cannot be cured. The effort that can be done in prevention before pathogens infect the plants (Sastra, 2004). One way to overcome this problem is biological control using biological agents from the type of antagonistic bacteria Bacillus spp, Pseudomonas fluorescens, and type of antagonistic fungus Trichoderma spp. From three biological agents proven able to inhibit the development of R. solanacearum in vitro which produces a zone of inhibition as wide as 13,5 mm for Bacillus spp, 22,25 mm for Pseudomonas fluorescens and 8,42 mm for Trichoderma spp. and can increase plant height growth, chili weight, root weight, wet weight, and dry weight plants. Trichoderma spp as the best biological agents for increasing chili growth and yield.

Uji Efektivitas Rizobakteria Dalam Menghambat Perkembangan Penyakit Hawar Pelepah Daun (Rhizoctonia solani Kuhn.) Pada Padi Secara In Vitro Hanisa Desy Ariani; Noor Aidawati; Dewi Erika Adriani
EnviroScienteae Vol 16, No 1 (2020): EnviroScienteae Volume 16 Nomor 1, April 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v16i1.8999

One of the causes of the declining productivity of rice is sheath blight disease caused by the mold Rhizoctonia solani Kuhn. Control of sheath blight disease that is often done by the farmers is by using chemical pesticides (fungicides), which caused environmental problems. One way to reduce the use of pesticides is to biological control by using antagonist bacteria. This study aimed at in vitro test of rhizobacteria in preventing the development of sheath blight disease in rice plants. This research was conducted in the Phytopathology laboratory of Plant Protection Department of Faculty Agriculture, University of Lambung Mangkurat Banjarbaru from March to May 2018. The experiment used a randomized block design with three groups consisting of eight types of rhizobacteria isolates: (r1) Pseudomonas aeruginosa (Barito Kuala), (r2) Bacillus megaterium (Hulu Sungai Tengah), (r3) Azotobacter sp. (Barito Kuala), (r4) Pseudomonas sp. (Hulu Sungai Selatan), (r5) Flavobacterium sp. (Tanah Laut), (r6) Bacillus bodius (Barito Kuala), (r7) Pseudomonas aeruginosa (Hulu Sungai Selatan), (r8) Necercia sp. (Tanah Laut). The results showed that all rhizobacteria have the ability to inhibit the development of R. solani with different percentages of inhibitions. Pseudomonas aeruginosa (Barito Kuala) was the most effective rhizobacteria in inhibiting the development of R. solani.

KORELASI ANTARA RADIASI MATAHARI DAN INTENSITAS PENYAKIT BUSUK PELEPAH PADA TANAMAN PADI DI LAHAN RAWA KECAMATAN JEJANGKIT KABUPATEN BARITO KUALA Eka Rismawina; Salamiah Salamiah; Dewi Erika Adriani
EnviroScienteae Vol 17, No 3 (2021): ENVIROSCIENTEAE VOLUME 17 NOMOR 3, NOVEMBER 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v17i3.11683

Sheath rot disease can affect the development of panicles so that it might reduce rice production and productivity. Nevertheless, the disease has not been widely discussed as a rice plant disease in South Kalimantan, thus it is necessary to conduct research on sheath rot disease related to the microclimate, in this case solar radiation as a part of the environmental factors for rice cultivation. The method used in this study was the quantitative survey on the ULM Action Research Program area, that is observation on samples and populations in the research area. Data were collected using the purposive sampling method, by using research instruments, namely three large plots measuring 140 m2 (10 m x 14 m) in 1 ha of land planted with rice. Each plot was divided into 15 subplots. Intensity data of sheath rot disease were taken from 5 samples in each subplot. The number of sample units taken in this study was 5 samples x 45 subplot = 225 samples. The weather station telemetry for measuring solar radiation (Wm-2) was installed at the altitude of 60 cm and 120 cm from the plant canopy. The highest disease intensity of sheath rot on stems was 0.45% and sheath rot on panicles was 12.72%. Solar radiation at the altitude of 120 cm has an effect to the intensity of sheath rot disease in panicle; that is, each increase of one unit of solar radiation (Wm-2) will reduce the intensity of sheath rot disease in panicles by 2.651%

KORELASI ANTARA RADIASI MATAHARI DAN INTENSITAS PENYAKIT BUSUK PELEPAH PADA TANAMAN PADI DI LAHAN RAWA KECAMATAN JEJANGKIT KABUPATEN BARITO KUALA Eka Rismawina; Salamiah Salamiah; Dewi Erika Adriani
EnviroScienteae Vol 17, No 2 (2021): ENVIROSCIENTEAE VOLUME 17 NOMOR 2, AGUSTUS 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v17i2.11496

Sheath rot disease can affect the development of panicles so that it might reduce rice production and productivity. Nevertheless, the disease has not been widely discussed as a rice plant disease in South Kalimantan, thus it is necessary to conduct research on sheath rot disease related to the microclimate, in this case solar radiation as a part of the environmental factors for rice cultivation. The method used in this study was the quantitative survey on the ULM Action Research Program area, that is observation on samples and populations in the research area. Data were collected using the purposive sampling method, by using research instruments, namely three large plots measuring 140 m2 (10 m x 14 m) in 1 ha of land planted with rice. Each plot was divided into 15 subplots. Intensity data of sheath rot disease were taken from 5 samples in each subplot. The number of sample units taken in this study was 5 samples x 45 subplot = 225 samples. The weather station telemetry for measuring solar radiation (Wm-2) was installed at the altitude of 60 cm and 120 cm from the plant canopy. The highest disease intensity of sheath rot on stems was 0.45% and sheath rot on panicles was 12.72%. Solar radiation at the altitude of 120 cm has an effect to the intensity of sheath rot disease in panicle; that is, each increase of one unit of solar radiation (Wm-2) will reduce the intensity of sheath rot disease in panicles by 2.651%.

HUBUNGAN TEKNIS AGRONOMI PELIBURAN TANAMAN JERUK SIAM BANJAR (Citrus reticulata) DENGAN WAKTU PEMATANGAN BUAH BERDASARKAN TIPE LUAPAN DI KABUPATEN BARITO KUALA Karina Citra Dewi; Gusti Rusmayadi; Dewi Erika Adriani
EnviroScienteae Vol 17, No 2 (2021): ENVIROSCIENTEAE VOLUME 17 NOMOR 2, AGUSTUS 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v17i2.11501

Peliburan is a term, that raised up the mud from the channels to the mound (called tukungan/guludan in local language) or raise beds as one of agronomic technics based on local indigenous of tidal swamplands farmers in South Kalimantan. Peliburan has many benefits for Siam Banjar citrus plant, namely creating a suitable microclimate so that it might be used to determine the appropriate time for ripening and harvesting of citrus fruits. The objectives of this study were to: 1) Determine the effect of peliburan on ripening time of Siam Banjar citrus fruit based on the type of overflow in Barito Kuala Regency, 2) Determine the joint or simultaneous effect, and partial effect of peliburan on ripening time of the Siam Banjar citrus fruit in Barito Kuala Regency 3) Determine the direct effect of peliburan on ripening time of Siam Banjar citrus fruit in Barito Kuala Regency. The recent study used survey and observation methods. The research location was chosen in purposive sampling method by considering the type of overflow and farmers as respondents in the selected villages with high productivity of Siam Banjar citrus. The study was conducted in four district in Barito Kuala Regency, namely Mandastana District, Belawang District, Cerbon District and Barambai District. The data analysis used to determine the effect of Peliburan was multiple regression analysis with a dummy variable consisted of 7 variables, namely X1 : time of peliburan, X2 : shape of peliburan, X3 : diameter of peliburan (cm), X4 : height of peliburan (cm), X5 : spacing between peliburan (population), X6 : age of peliburan (years) and X7 : Soil temperature (oC). The results showed that agronomic technics that is shape of peliburan, height of peliburan, spacing between peliburan and soil temperature had an effect on ripening time of Siam Banjar citrus fruit both at type A and type B overflow in Barito Kuala Regency. Simultaneously, all independent variables of peliburan had a significant linear relationship with the dependent variable that is ripening time of Siam Banjar citrus fruit in Barito Kuala Regency. Partially, at type A overflow, time of peliburan, diameter of peliburan, spacing between peliburan , height of peliburan, and soil temperature had a significant effect, whereas at type B overflow, time of peliburan, diameter of peliburan, height of peliburan, spacing between peliburan and age of peliburan had a significant effect on ripening time of Siam Banjar citrus fruit. The dominant direct effect of peliburan at type A and type B overflow was the soil temperature and height of peliburan.

MODIFIKASI MEDIA TANAM TOMAT BELINJAN PADA BERBAGAI INTERVAL PEMBERIAN NUTRISI SISTEM FERTIGASI Abdul Wahid; Gusti Rusmayadi; Dewi Erika Adriani
EnviroScienteae Vol 18, No 3 (2022): ENVIROSCIENTEAE VOLUME 18 NOMOR 3, NOVEMBER 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v18i3.14803

It is necessary to choose the right planting media for vegetable cultivation with a fertigation system. Modification of growing media at various intervals of nutrition can be recommended. The study aimed to 1) analyze the interaction effect of the modification of planting media at various intervals of nutrition on the growth and yield of belinjan tomatoes in the fertigation system, 2) analyze single the effect of each treatment, 3) determine the best combination of treatment. This research was conducted in a greenhouse by using a pot through the treatment of a Split Plot Design. The first factor as the main plot is the interval of nutrition (B) consisting of 3 levels: b1 (3 times a day), b2 (5 times a day), and b3 (7 times a day) and the second factor as a sub-plot is the modification of planting media (A) the ratio of burnt husks: manure: cocopeat the ratio consists of 4 levels: a0 (burnt husk), a1 (2:1:1), a2 (1:2:1), and a3 (1:1) 1:2). The results showed that there was an interaction effect of treatment on the main plot and sub-plots at intervals of nutrition and modification of planting media on the variable of Brix level of belinjan tomato. The single factor of modification of the planting media affected the average number of fruits per bunch, the relative growth rate of 59-73 days after planting and the root shoots ratio. Combination of treatment 7 times per day of the interval level of nutrition with 100% of the burnt husk media resulted in tomato Brix levels at an average level of (5.70) better than other combinations.

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