JERAMI - Indonesian Journal of Crop Science
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The Effect Of Dosing Potash Fertilizer And Compost Doses Of Empty Bunches Of Oil Palm (Tkks) On The Growth Of Citronella Plants (Cymbopogon Nardus L.)
No full textCitronella is a biopharmaceutical plant that has the main content of citronella and geraniol as raw materials in the manufacture of essential oils (citronella oil) which have high economic value. The production of citronella increases every year although the amount is still small when compared to the production of other biopharmaceutical plants. So it is necessary to increase the productivity of citronella plants with the use of the right dose of fertilizer. This study aims to determine the effect of potassium fertilizer dose and Compost Dose of Empty Palm Oil Bunches (EFB) on the growth of citronella (Cymbopogon nardus L.). The research was started in February-June 2022 at Balai Pengkajian Teknologi Pertanian (BPTP) Banten, Ciruas District, Serang Regency, Banten and the Laboratory of the Department of Agroecotechnology, Faculty of Agriculture, Sultan Ageng Tirtayasa University. This study used a Randomized Block Design (RBD) method which consisted of two factors, namely potassium fertilizer dose and Compost Dose of Empty Palm Oil Bunches (EFB). The first factor has 4 levels, 0 kg/ha potassium (K0), 15 kg/ha (K1), 30 kg/ha (K2) and 45 kg/ha (K3). The second factor has 4 levels, 0 tons/ha (T0), 20 tons/ha (T1), 30 tons/ha (T2) and 40 tons/ha (T3). There were 16 treatment combinations with 3 replications so 48 experimental units were obtained. Each experimental unit contained 2 polybags where each polybag contained 2 plants, so the total plants in the study were 192 plants. The results showed that the dose of potassium fertilizer 30 kg/ha gave the best results on plant height parameters at the age of 3, 4, 5, 6 WAP, the dose of potassium fertilizer 15 kg/ha gave the best results on the number of leaves aged 1 WAP. Dosage of 40 tons/ha of TKKS compost gave the best results on the number of leaves aged 5 and 6 WAP. There was no interaction between the dose of potassium fertilizer and the dose of TKKS compost on all parameters at the age of 1-12 WA
DIVERSITY OF MYCORRHIZAL FUNGI IN THE RHIZOSPHERE OF Avicennia officinalis (L.) IN THE PENITI MANGROVE FOREST, MEMPAWAH REGENCY
Full text linkMycorrhizal fungi are a form of mutualistic symbiosis between fungi and plant roots, including mangrove api-api that grows on mangrove area. This study aims to determine the diversity of mycorrhizal fungi on mangrove api-api (Avicennia officinalis L.) This study used a combination of wet filtering and centrifugation techniques for spore isolation. The results showed that the types of mycorrhizal fungi found in mangrove area were Scutellospora, Gigaspora, Acaulospora Glomus sp1, Glomus sp2, Glomus sp3 and Glomus sp4. The diversity of mycorrhizal fungi in Peniti area was 0,07105 and Sungai Purun was 0,47280. the distribution of species is uneven, there are species that dominate and conditions are unstable. Spore density of 103 spores /100 gr soil and level of root infection percentage with low class (class 1) was 0,24% in Peniti dan 0,18 % in Purun River
Response of Growth Citronellal Grass (Cymbopogon nardus L) by Acaulospora sp Mycorrizha and Different Water Treatments in Ultisol
Full text linkCitronella grass (Cymbopogon nardus L) is one of the essential oil-producing plants from the Gramineae group. This research was conducted in the Greenhouse of the Faculty of Agriculture, Andalas University, Padang from August 2017 until January 2018. This study aimed to determine the effect of Acaulospora sp and different water treatments on the growth of citronella grass in ultisol. A completely randomized design with two factors was used. The first factor was treatment with or without Acaulospora sp. The second factor was the water supply which consisted of three treatments (saturated, three quarters saturated and half saturated soil). Every treatment was repeated three times. Data were analyzed by analysis of variance using the F-test at the 5% level. Significant differences were further tested using Duncan’s New Multiple Range Test also at the 5% level. Treatment with Acaulospora sp and 75% saturated soil gave the best number of leaves and canopy to root ratio. Treatment with Acaulospora sp showed the best results for the number of tillers, stem diameter, root dry weight, and dry weight of the citronella plants. Acaulospora spp promote the growth of citronella grass.
 
Seed Quality Selection of Several Genotypes of Brown Rice (Oryza sativa L.) under High-Temperature Stress
Full text linkClimate change impacts increasing temperature, and environmental factors can affect the capacity and rate of seed germination. This study aimed to determine and study the effect of temperature changes on the viability and vigor of brown rice seeds and the morphology of the sprouts produced. The variation of temperature used was 28-400C, and ten genotypes of brown rice seeds used were Pulen Mudiak, Pulen Kandih, Pulen Marapak, Pulen Talao, 64, Sibandung, Silalang, Timbo Abu, Labuah Baru, and Melayu. The results showed that every 10C increase in temperature affects rice germination percentage. The optimum temperature for the germination of ten genotypes of brown rice tested was a temperature range of 28-330C, with a germination value of >80%, the maximum critical temperature 370C and at 38-40 0C no brown rice seeds germinated. Pulen Marapak has the highest maximum growth potential of 90,3% at 280C and 10% at 370C. The increase in temperature also damages brown rice roots and shoots dengan the average root length is 6,7-10,1 cm and shoot length is 8-11,5 cm at 280C
The Effect of Sulfentrazone and Glyphosate Herbicides to Control Eleusine Indica L. a Resistant weed to Herbicide
Full text linkWeed Eleusine indica L. was reported to have been difficult to control using glyphosate in Oil palm plantation during the time. Sulfentrazone was used as an alternative herbicide for the management of resistant weeds. The aim of this study was to determine the effects of two active ingredients Glyphosate and Sulfentrazone on weed Eleusine indica L. resistant to herbicide. The study was conducted using Completely Randomly Designed (CRD) with 14 treatments and 3 replications. 14 treatments consisted of single herbicide Glyphosate, which was applied at field rate 2 l/ha, Sulfentrazone was sprayed at the numerous dose of 500, 750, 1000, and 1250 ml/ha, and the mixture of Glyphosate and sulfentrazone at the dose of 500 ml/ha + 2 l/ha and 750 ml/ha + 2 l/ha, respectively. The research was conducted at the Greenhouse of the Faculty of Agriculture, Andalas University, Padang, from August to December, 2021. The results showed that there were significantly effect when used in combination of herbicides Glyphosate and Sulfentrazone, showed 100% of mortality weed after 3 week application. For a single active ingredient, Glyphosate controlled eficiently weed at the 4-leaf stage, Sulfentrazone had same impact on managing weed on the 4 and 6-leaf stage, both caused 100% weed dead. However, weed Eleusine indica L. was treated with Glyphosate still survived on 6 and 8 leaves weeds. Similar to Glyphosate, Sulfentrazone could not completely control resistant weeds at the 8-leaf stage. Classification of resistant weed Eleusine indica L. are herbicide-developing resistance 14%, herbicide-resistant 22%, and herbicide-susceptible 64%
The Diversity of Warehouse Pests on Areca Nuts in the West Sumatera, Indonesia
Full text linkAreca nut is one of Indonesia’s leading export commodities that must adhere to certain phytosanitary requirements, including being pest-free. It is infested by several types of insect pests during the storage process. Therefore, this study aims to determine the diversity of warehouse pests that infest areca nuts. It was conducted using a survey method at three warehouses of large collectors and exporters of areca nut in the Padang city and the Padang Pariaman regency. The purposive sampling method was adopted to collect samples from three traders' warehouses. Furthermore, the nut was taken diagonally in a pile, namely the corner and center of 1 kg each, and repeated 4 times. The identification key was used to identify 15 insect types from 10 families and 3 orders. The Cryptolestes pusillus, C. ferugineus, and Carpophilus sp. were found with the highest number of individuals in each warehouse. The diversity index of the three warehouses is 1.78, 2.14, and 1.90 indicating a moderate level. Additionally, the similarity index between warehouses shows a high and very high level of species similarity
The Functions of Biochar and Arbuscular Mycorrhizal Fungi to Increasing the Yield of Glutinous corn on sub-optimal land in a sustainability
Full text linkThis study aims to determine the role of biochar and mycorrhizal fungi in increasing soil fertility Inceptisols as suboptimal soil, which are poor in nutrients, low in carbon, and phosphorus, are suitable for planting of purple pulut corn (Zea mays ceratina Kulesh). This study used a randomized block design (RAK) with a factorial pattern of 3 replications, namely the dose of biochar (B) 0 t/h, 2 t/h, 4 t/h, and mycorrhizae (M) with a dose of 0 t/h, 0.2 t/h, 0.4 t/h. The data obtained were further tested with Duncan's multiple range test at a level of 5%. The application of biochar and mycorrhizae affected the number of leaves, days of flowering for males and females, and rows of This study aims to determine the role of rice husk biochar and mycorrhizal fungi in increasing soil fertility. Inceptisols, which are poor in nutrients, low in carbon, and phosphorus, are suitable for planting. There is an interaction in the administration of biochar 2 t/h + mycorrhiza 0.2 t/h on rows per row of purple pulut corn cobs. The application of biochar and mycorrhizae can overcome land infertility and provide the nutrients suitable for crops for supporting sustainable agriculture
The The Effect of Doses Quail Manure on The Growth and Yield of Shallot (Allium ascalonicum L.)
No full textResearch on the effect of Quail Manure on the Growth and Yield of Shallots (Allium ascalonicum L.), has been carried out in Jorong Lima Ninik, X Koto Singkarak District, Solok Regency with an altitude of ± 400 m above sea level. This study aims to obtain the best dose of quail manure for the growth and yield of shallots. The method used was a Randomized Block Design (RAK) with 6 treatments, 4 groups. The treatment given was the dose of quail manure namely, as follows: P1=0 g/polybag, P2=30 g/polybag, P3=60 g/polybag, P4=90 g/polybag, P5=120 g/polybag, P6=150 g/polybag. The research data were analyzed for variance if the calculated F was greater than F table 5%, followed by Duncan's New Multiple Range Test (DNMRT) at a 5% significance level. Parameters observed were plant height (cm), number of leaves (strands), number of tubers (fruit), wet weight (g), dry weight (g). The results showed that the application of quail manure had a very significant effect on plant height, the number of leaves, wet weight, and dry weight of shallot bulbs. The best results were obtained from the P5 treatment (120 g/polybag) with a production of 78.25 g/plant
The Effect of Humic and Salicylic Acid on Improving Salt Tolerance of Yellow Hot Chili (Capsicum annuum L.)
No full textSalt stress adversely affects the physiological processes of plants, causing negative changes in the morphology and anatomy of cells, tissues and organs. In order to adapt to the increasingly complex situation of saline intrusion, application of exogenous plant growth regulators shows many positive results to improve the crop's tolerance. In order to survey the effects of humic acid and salicylic acid on yellow hot chili (Capsicum annuum L.), the study was experiated in the greenhouse of Kien Giang University. The experiment was arranged in a completely randomized design, including 2 factors: humic acid (with 4 concentrations: 0 ppm, 1,000 ppm, 1,500 ppm and 2,000 ppm) and salicylic acid (with 4 concentrations: 0 mM, 1 mM, 1.5 mM and 2 mM) were treated separately or in combination (including 16 treatments with 3 replicates). The results showed that the yellow hot chili could grow and bear fruit when watered with saline water from 30 days after planting, however, the yield was low. The record indicated that supplying humic acid at 1,500 ppm into the soil and spraying with salicylic acid at 2 mM to the leaves gave the most effective results, increasing 82% of the yield compared with the control
The Effectivity of Indigenous Rhizobacteria and Manure on the Yield of Red Potato (Solanum tuberosum L.)
Full text linkPotatoes are one of the world's five food crops in the form of tubers and have many benefits. One type of potato developed in Indonesia is red potatoes because they have a high nutritional content and are more susceptible to plant pest organisms. An experiment was conducted in Nagari Selayo Tanang Bukit Sileh, Lembang Jaya, Solok, West Sumatra, Indonesia from May to August 2017. The effect of three indigenous rizobacteria (A2.1b2, A3.1a5 and B1.2a2) and three types of manure, both individually and in combination, on the growth and yield of red potatoes was studied. A two way factorial experiment with a completely randomized design and three replicates was used. Chicken, quail and cattle manure were applied at a dose of 30 tons per hectare. Data were analyzed by analysis of variance and comparison of mean using the Honestly Significant Difference test at the 5% level. There was no interaction between rizobacterial isolates and manure on the growth and yield of red potatoes. All isolates gave similar results with respect to plant growth, but isolates A2.1b2 give the best yields. Chicken manure increased fresh weight of tubers by 11.73 ton per hectare compared to quail and cattle manure