INTENSITAS SERANGAN HAMA TIKUS BELUKAR (Rattus sp) PADA TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) MENGHASILKAN DI KEBUN RAKYAT DESA SUKO AWIN JAYA KABUPATEN MUARO JAMBI

Cultivation of oil palm is inseparable from pests. One of the main pests that attack oil palm plants is the rat class which can cause oil palm plantations get a high losses. The aim of this study was to determine the attacktion intensity of the bush rat (Rattus sp) in Oil Palm smallholder at Suko Awin Jaya Village, Muaro Jambi Regency. The research was carried out from February to April 2021 at the oil palm smallholder specifically farmer group“Ridho Ilahi”. The experimental design was unformated trials, and the location was purposively chosen. The location determination of the sample was based on to the initial survey that there was found rats attacktion in this place. Sampling was carried out concurrently at the time fresh fruit bunches harvesting, fruit counting in the bunch, counting the number of fruits eaten by rats, counting good fruit (free from rat pest attacks), and weighing the weight of fresh fruit bunches. Parameters observed were the attacktion level in the land, attacktion intensity, production per hectare, environmental sanitation conditions. The rats attacktion rate of 100%, means that all sample in one stretch of plantation have been attackted by rats, it was indicated by a bite scars on the harvested fresh fruit bunches. The attacktion intensity of the bush rat pest was 23%. The average production was 21.6 tons/hectare/year. The sanitation conditions on the land was partially overgrown with weeds and there were piles of midrib in the area between the certain two path of oil palm tree.

PERKEMBANGAN Spodoptera frugiperda J.E Smith PADA TANAMAN JAGUNG MANIS (Zea mays L. Saccharata)

This study was conducted to determine the relationship between sweet corn plant phenology and population development and the attack of Spodoptera frugiperda. The research was carried out at the Research Farm and at the Laboratory of Plant Pests, Faculty of Agriculture, Jambi University. The study was conducted on an area of 500 m2 containing 28 plant plots. The sample plants consisted of 4 plots determined systematically. In each sample plot, all plants were used as sample. plants to calculate the percentage of attacked plants, and the percentage of attacked cobs. S. frugiperda population observations were carried out directly on leaves, stems, flowers and cobs. If there were S. frugiperda faeces on the shoots, stems, and cobs, destructive observations were made where the plant parts were opened, to determine the presence of S. frugiperda in them. The data obtained were tabulated and arranged in the form of tables and figures, then explained descriptively. The results showed that: the population of S. frugiperda in each growth phase continued to increase, the highest population of S. frugiperda was found in the R6 phase or in the physiological ripening phase, which was as many as 21 heads per 12 corn plants; the percentage of attacks of S. frugiperda in each phase continues to increase, the highest percentage of attacks is in phase R6, which is 78.72%; the attack of S. frugiperda on cobs began to be seen in the R2-R5 phase and was highest in the R6 phase, which was 68.57%. It is necessary to find the right way to control S. frugiferda.

Respons Kedelai Edamame terhadap Berbagai Jarak Tanam dan Dosis Pupuk Kotoran Ayam

Efforts to increase edamame production and productivity include regulating plant populations and increasing soil fertility. The aim of the study was to examine the response of edamame soybeans to various spacings and doses of chicken manure. The study aimed to examine the response of edamame soybeans to various spacings and doses of chicken manure. The experiment used a Randomized Block Design (RBD) with two factors, namely plant spacing which included: 30cm x 10cm; 30cm x 20cm; 30cm x 30cm, and the dose of chicken manure fertilizer is: 5 tons ha-1; 10 tons ha-1, and 20 tons ha-1. Plant spacing and dose of chicken manure did not significantly affect, but each factor affected the number of branches, as well as the number and fresh weight of edamame pods. Edamame gave the best response at a spacing of 30cm x 20cm and a dose of chicken manure 15 tons ha-1. Edamame productivity from this study was only able to meet 48 – 50% of the productivity target for exports.

Karakteristik Mutu Organoleptik Seduhan Bubuk Kopi Robusta (Coffea canephora) Dengan Suhu Penyangraian Yang Berbeda

This research is entitled : Organoleptic Quality Characteristics of Robusta Coffee ( Coffea canephora ) Brewing with Different Roasting Temperatures. Implementation treatment and organoleptic tests this research at the Faculty of Agriculture UNBARI Jambi in March-August 2021 . The environmental design used in this study was a completely randomized design. The treatment design consisted of different roasting temperatures, with 4 levels of roasting temperature, as follows: p1 = roasted at 180 0 C ; p 2 = roasted with a temperature of 2000 C ; p 3 = roasted at a temperature of 220 0 C and p 4 = roasted at a temperature of 240 0 C . Each treatment was repeated 3 times so that there were 12 experimental units .The observed variables of steeping coffee grounds in this research were : color, aroma, taste, bitterness, pH and water content of coffee grounds. To see the effect of different roasting temperatures, statistical analysis was carried out: the variables of color, aroma, taste, bitterness, and preference were carried out by a perception test with a 5-scale Likert scale then tabulated the data, followed by analysis of variance, then continued with the DNMRT test at level 5 %. While testing the pH and moisture content of coffee grounds was analysis of variance and further test of DNMRT at the level of 5%. Roasting coffee beans at a temperature of 240 0 C, resulted in the highest organoleptic assessment of brewing coffee grounds in terms of color, aroma, taste, bitterness, preference, pH, and water content.

EFEKTIVITAS KITOSAN CANGKANG KEONG MAS DALAM MENGENDALIKAN PENYAKIT YANG DISEBAKAN VIRUS PADA TANAMAN CABAI (Capsicum annuum L)

Cabai merupakan tanaman perdu dari Famili Solanaceae . Cabaiikaya vitaminiA daniC, niacin,iriboflavin danithiamin, cabai dimanfaatkan sebagai salah satu bumbu masak dan obat –obatan. salahisatu kendalairendahnya produksi cabaiidi Indonesia disebabkanioleh serangan virusitanaman, untuk itu perlu dilakuakan pengendalian penyakit, salah satunya menggunakan kitosan yang berasal dari cangkang keong mas. Penelitian bertujuan untuk mengetahui kemampuan kitosan keong mas dalam mengendalikan penyakitiyang disebabkanioleh virus padaitanamanicabai. Penelitian ini dilaksanakan di Kebun Percobaan Tanaman Fakultas Pertanian Universitas Jambi. Penelitian menggunakaniRancanganiAcak Kelompok (RAK), yangiterdiriidari 7 perlakuanidan 4iulangan sehinggaiterdapat 28 satuan percobaan, setiap satuanipercobaan terdiriidari atas 12 Perlakuan adalah : P0 : Kontrol, P1: Benih direndam disuspensi kitosan cangkang keong mas, P2 : Benih direndam disuspensi kitosan industrial, P3 : Bibit cabai disemprot dengan kitosan keong mas, P4 : Benih direndam dan disemprot dengan kitosan keong mas , P5 : Bibit cabai disemprot dengan kitosan industrial, P6 : Benih direndam dan disemprot dengan kitosan industrial. Berdasarkan hasil penelitian Perlakuan kitosan benih direndam dan disemprot dengan kitosan industrial intensitas penyakit keriting yang ditimbulkan yaitu 26,7 % lebih rendah dari pada kontrol sebesar 46,7 %. Perlakuan benih direndam dan disemprot dengan kitosan keong mas kejadian penyakit keriting yang ditimbulkan yaitu 39,6 % lebih rendah dari pada kontrol sebesar 58,3 %. Aktivitas enzim peroksidase yang tertinggi terdapat pada perlakuan perlakuan benih direndam disuspensi kitosan keong mas sebesar 1,58631 U/g/min dan yang terendah terdapat pada kontrol sebanyak 0,79649 U/g/min peningkatan aktivitas enzim peroksidase adalah 13,05 – 99,16 %. Serangga vektor yang ditemukan penelitian ini adalah Bemisia tabaci dan Aphis sp.

PENGARUH PEMBERIAN BERBAGAI KONSENTRASI MOL REBUNG BAMBU DAN PENJARANGAN BUAH TERHADAP PERTUMBUHAN DAN HASIL TANAMAN LABU MADU (Cucurbita moschata Durchesne)

The obstacle faced when cultivating honey pumpkins (Cucurbita moschata Durchesne) is that the fruit size is not uniform and even tends to get smaller so that the results are not satisfactory and are not accepted in the market. This study aims to examine the effect of the combined application of the MOL of bamboo concentration with fruit thinning on the growth and production of honey pumpkins, which was carried out from May to September 2020 in PT. Pupuk Sriwijaya land, H. Agus Salim street No. 1 Handil Jaya Village, Jelutung District, Jambi. This study used a factorial randomized block design with 2 factors, the first factor being the provision of MOL of bamboo which consisted of 4 levels of concentration, namely; without presenting the MOL of bamboo (b0), MOL of bamboo 20 ml L-1 (b1), 40 ml L-1 (b2), and 60 ml L-1 (b3). The second factor is fruit thinning, consisting of 3 levels, namely; without fruit thinning (p0), fruit thinning to 4 pieces (p1), and fruit thinning to 6 pieces (p2) with 3 replications. The results showed that the combination of concentration MOL of bamboo of 40 ml L-1 and fruit thinning to 4 pieces resulted in higher plant growth yields and greater fruit weight. This study showed that these two factors were involved in the growth and yield of honey pumpkins.

PENGARUH PEMBERIAN PUPUK KOMPOS SOLID TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L) DI POLIBAG

Tanah ultisol memiliki unsur hara tersedia dan bahan organik yang sangat rendah, sehingga diperlukan pemberian input bahan organik untuk mendukung suplay unsur hara guna pertumbuhan tanaman kakao.Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk kompos solid dengan takaran yang berbeda terhadap pertumbuhan bibit kakao. Rancangan lingkungan yang digunakan adalah rancangan acak lengkap (RAL) dan rancangan perlakuan yaitu pemberian pupuk kompos solid yang terdiri dari 4 perlakuan yang berbeda yaitu :s0 : tanah Ultisol 3 kg per polibag (kontrol), s1 : 110 g pupuk solid per polibag + 3 kg tanah Ultisol, s2 : 135 g pupuk solid per polibag + 3 kg tanah Ultisol, s3 : 160 g pupuk solid per polibag + 3 kg tanah Ultisol. Data dianalisis menggunakan analisis ragam, dilanjutkan dengan Uji Jarak Berganda Duncan (DNMRT) pada taraf α 5%. Hasil penelitian menunjukan bahwa pemberian pupuk kompos solid dengan takaran yang berbeda memberikan pengaruh nyata terhadap diameter batang, dan berpengaruh tidak nyata pada tinggi tanaman, berat kering tajuk, berat kering akar, nisbah tajuk akar, dan indeks kualitas.

Respon Pertumbuhan Bibit Kakao (Theobroma cacao L.) Terhadap Pemberian Kompos Limbah Kelapa Sawit

Cacao (Theobroma cacao L.) is one of the important plantation commodities after oil palm and rubber. This plant has a high economic value and is a foreign exchange earner. The seeds produced are used as raw material for the foodstuff industry as well as for the pharmaceutical and cosmetic industries. Based on data from the Central Statistics Agency, the productivity of cocoa-farmers in Jambi is still very low, only reaching 585 kg ha-1. This study aims to obtain a dose of oil palm waste compost to support the growth of cocoa seedlings. The experiment was carried out in Pijon Village, Jaluko District, Muaro Jambi Regency from December 2020 to April 2021. This experiment was carried out using a completely randomized design environment. The treatment design used was compost dosage consisting of 4 levels, namely p0 = without giving compost, p1 = 5 tons ha-1 (7.5 grams per 3 kg of media), p2 = 10 tons ha-1 (15 grams per 3 kg of media) and p3 = 15 tons ha-1 (22.5 grams per 3 kg of media). The observed data were tabulated and analyzed with analysis of variance. If the calculated F value has a significant effect, then the DNMRT further test for 95% accuracy is carried out. The results showed that the application of compost 15 tons ha-1 showed an increase the plant height of 63.78%, the stem diameter of 73.68%, the shoot dry weight 30.83%, the total dry weight 95.12%, an the short root ratio 90.37%.

PERTUMBUHAN TANAMAN SERAIWANGI (Cymbopogon nardus L) PADA BEBERAPA DOSIS KOMPOS KULIT KOPI

The purpose of this study was to determine the effect of giving coffee husk compost on the growth of citronella (Cymbopogon nardus L.) plants. This research was conducted in Kuala Tungkal, Tungkal Ilir District, West Tanjung Jabung Regency, Jambi Province, from December 2020 to March 2021. Analysis of compost nutrients was carried out at the Laboratory of the Jambi Agricultural Technology Research Center and measurements of root wet weight, shoot dry weight and root dry weight were carried out at the Basic Laboratory of Batanghari University Jambi. This research was conducted using a randomized environmental design (CRD) and treatment design for coffee husk compost which consisted of 4 levels of treatment, namely k0 : 3 kg of soil media without treatment (control), k1 : 15 g of coffee husk compost + 2,985 g of soil media, k2 : 22.5 g coffee husk compost + 2.977.5 g soil media, and k3 : 30 g coffee husk compost + 2.970 g soil media. The results of the analysis showed that the application of coffee husk compost had a significant effect on the parameters of root wet weight, shoot dry weight and pH of the growing media but had no significant effect on the parameters of the number of tillers, number of leaves, root dry weight and root crown ratio

PERTUMBUHAN STEK KOPI ROBUSTA (Coffea canephora) DENGAN PEMBERIAN EKSTRAK BAWANG MERAH

Indonesia is one of the largest coffee producing and exporting countries in the world. Most of the production is robusta variety. Coffee is the fourth largest foreign exchange earner for Indonesia after palm oil, rubber and cocoa and is a source of income for the community. Coffee can be developed in a generative (seed) and vegetative way, including using cuttings. Efforts to accelerate the formation of roots in cuttings can be done by using natural growth regulators, one of which is shallots which contain auxins. The purpose of this study was to examine the effect of shallot extract on the growth of robusta coffee cuttings (Coffea canephora). This research was conducted from December 2019 to February 2020 at Campus II, Batanghari University (Pijoan). The design used in this study was a completely randomized design (CRD) with one treatment factor, namely shallot extract including; .k0 (without giving onion extract), k1 (250 g of shallots in 1 liter of distilled water), k2 (500 g of shallots in 1 liter of distilled water), k3 (750 g of shallots in 1 liter of distilled water), and k4 (1000 g of shallots in 1 liter of distilled water). Each stage of the experiment was repeated 3 times, so that there were 15 experimental plots, for each experiment there were 10 cuttings with a total of 150 cuttings. The observed data were analyzed using analysis of variance followed by the DNMRT test at α 5%. From the immersion treatment in 750 g of shallot extract in 1 liter of distilled water (k3), there was an increase in the percentage of live cuttings 47.37%, the percentage of shoots and roots growth of 83.51%, 106.06% of shoot length, and 98.03% of roots. , and the root dry weight of 225.27% compared without giving onion extract (k0).