Respon Viabilitas Benih Kacang Tunggak Nagara (Vigna unguiculata ssp cylindrica) Akibat Pemberian Konsentrasi Ekstrak Akar Eceng Gondok (Eichhornia crassipes)

Water hyacinth root contains Giberilin which was expected to improve the viability performance of nagara cowpea. The aim of this research was to study the effect of water hyacinth root extract on the viability of nagara cowpea. The research was carry out in April - October 2020 at the Plant Physiology Laboratory, Faculty of Agriculture, Lambung Mangkurat University, Banjarbaru. This research was arranged in a single factor completely randomized design, namely the concentration of water hyacinth root extract (control, 0%, 7.5%, 15.0%, 22.5%, and 30.0%). Observations were made on seed germination, viability potential, percentage of normal seedling at first observation, growth speed, uniformity of growth, root and plumule length of strong normal seedling, and dry weight of normal seedling.. If the treatment has a significant effect, then proceed with DMRT (Duncan Multiple Range Test). The 0.0% priming was better on all variables than the without priming, except for the root length. The 7.5% priming treatment was the most efficient for seed germination, potential germination of seeds, and growth uniformity of seeds. The 22.5% priming treatment was the most efficient for the germination percentage in first observation, seed growth speed, plumule length, and dry weight of normal seedling.

Green Route for the Removal of Pb from Aquatic Environment

Aim and Objective: Wastewater treatment/remediation is a very important process that has a great environmental and economic impact. Therefore, it is crucial to innovate different methods to remove pollutants of different sources from wastewater. This work was conducted in order to study the removal of lead (Pb+2) from wastewater using microspheres of composites of sodium alginate, cellulose and chitosan, as well as using a cost-effective green route through composites of sodium alginate and dried water hyacinth. Materials and Methods: Molecular modeling at B3LYP/6-31g(d,p) was utilized to study sodium alginate, cellulose and chitosan. Sodium alginate was cross-linked with calcium chloride to form microspheres, then both sodium alginate/cellulose and sodium alginate/chitosan were also crosslinked as 50/50 to form microspheres. The roots of the aquatic plant water hyacinth in dry form were added to the cross-linked sodium alginate for up to 70%. SEM and FTIR were employed to study the surface of the prepared microspheres and their structures respectively. Atomic absorption spectroscopy was used to study the levels of Pb. Results: Molecular modeling indicated that the blending of such structures enhances their ability to bind with surrounding molecules owing to their ability to form hydrogen bonds. SEM results indicated that homogeneous structures of cellulose and chitosan are deformed when blended with sodium alginate, and FTIR confirmed the proper formation of the desired blends. Microspheres from sodium alginate showed the ability to remove Pb+2 from wastewater. SEM indicated further deformation in the morphology with the roughness of sodium alginate/water hyacinth microspheres, while FTIR confirmed the uniform matrices of the microspheres. The removal of Pb+2 was enhanced because of the addition of dried water hyacinth's roots. Conclusion: Modeling, experimental and kinetic data highlight sodium alginate/water hyacinth root as a green route to remediate Pb+2 from wastewater.

Biogas Production from Anaerobic Co-digestion of Water Hyacinth (Eichhornia crassipes) and Cow Manure

Production of electricity, heat and fuel are important for today’s social and economic growth. Biogas produced by anaerobic co-digestion is an alternative, carbon-neutral, renewable fuel that can be generated from local, low-cost organic materials. Co-digestion of Water Hyacinth (Eichhornia crassipes) and cow manure, was performed with a designed laboratory anaerobic fermentation system at 39°C ± 2°C. Co-digestion was conducted with 100% cow manure as a basis, and cow manure and water hyacinth ratios of 25%:75%:, 50%:50%, and 25%:75% for complete water hyacinth plants, water hyacinth roots and water hyacinth leaves fractions. Biogas production per gram volatile solid for anaerobic digested cow manure was between 134 ml to 355.59 ml. Co-digestion of cow manure and water hyacinth showed the highest average biogas production per gram volatile solids for complete water hyacinth and water hyacinth root mixture ratios of 25% cow manure and 75% of water hyacinth and water hyacinth roots yielding 273.01 ml and 462.63 ml respectively. The least biogas per gram volatile solids produced during co-fermentation was for complete water hyacinth and water hyacinth root with a ratio of 75% cow manure and 25% water hyacinth and water hyacinth root, yielding 163.77 ml and 250.28 ml respectively. Water hyacinth leave mixture at 50% cow manure and 50% water hyacinth leaves had the lowest average biogas production of 172.54 ml per gram volatile solids. The highest biogas production of 283.55 ml per gram volatile solids was achieved for a mixture of 75% cow manure and 25% water hyacinth leaves. The biogas composition without CO2 showed a biogas content for the cow manure between 54 and 65%. The application of co-digestion utilizing cow manure and water hyacinth as a feedstock could help minimize the negative environmental impact of water hyacinth and help to restore biodiversity, water quality and habitat of infested sites.

Karakteristik Buah Dan Biji Terong (Solanum Melongena .L var. Kenari) Setelah Diberi Ekstrak Air Akar Eceng Gondok (Eichhornia crassipes)

Thai aubergine or eggplant, or goes by local name terong kenari (Solanum melongena L. var Kenari), is a vegetable included in the family Solanaceae. Eggplant loved by most of Indonesians, either eaten fresh or cooked. However, some often despise eggplant’s seeds as it may cause digestive problem. Plant hormone in controlling plants’ growth, such as giberelin, are frequently used to produce seedless or no-seed eggplant. This study is conducted to test the impact of water hyacinth, or goes by local name eceng gondok (Eichhornia crassipes), root extract treatment in the characteristic of eggplant (Solanum melongena L. var Kenari) fruit and seeds. This research is done in experimental manner, using the completely randomized design, including four different extract’s concentration; 0 g/L, 50 g/L, 100 g/L, and 150 g/L; and one giberelin treatment that are given five times, repeatedly. According to the research conducted, the water hyacinth root extract treatment results in the increase of the quantity and weight of the eggplant, and also the reduction in seeds, as it also affects the fruit skin layer thickness. As in the study, the optimum outcome is obtained with the concentration of 150 g/L water hyacinth root extract; which result in average number of fruit 6.6 for each plant, average weight 179.57 gram per fruit, average number of seeds 561 per fruit, average weight 6.14 gram per seed, and average skin thickness 0.78 in each eggplant. Keywords: Eggplant, gibberellin hormone, water hyacinth, characteristic of eggplant fruit and seeds

REDUKSI JUMLAH BIJI CABAI RAWIT (Capsicum frutescents) DENGAN MENGGUNAKAN SARI AKAR ECENG GONDOK (Eichhornia crassipes)

Cayenne pepper is one of the important economic agricultural commodities and is widely used in the food industry. However, the presence of cayenne pepper seeds is not favored by some people because if consumed can cause digestive disorders. Giberelin is one of the growth regulating substances commonly used to produce seedless fruit growth. This study aims to explore the effect of water hyacinth root extract (Eichhornia crassipes) on plant height, yield and number of cayenne pepper seeds. The study was carried out experimentally using a completely randomized design (CRD) of 4 extract treatments, namely 0 g / l (control), 25 g / l, 50 g / l, and 75 g / l of water hyacinth root extract, each of which was repeated six times. The results of this study indicate that the provision of water hyacinth root extract can increase plant height and yield but reduce the amount of cayenne pepper seeds. The concentration of water hyacinth root extract 75 g / l is the best water hyacinth root extract that can produce an average plant height of 65.67cm, an average yield of 206.50 fruits per plant with an average fruit yield of 170.17 gram per plant and the average number of seeds is 31.17 seeds per cayenne pepper. This study concluded that the root extract of goiter water can reduce the number of seeds and increase plant height and yield of cayenne pepper. Keywords: cayenne pepper, giberelin hormone, water hyacinth and cayenne pepper seeds.

Pengaruh Kompos dari Berbagai Bagian Eceng Gondok terhadap Pertumbuhan dan Hasil Tanaman Seledri

Celery plants like planting media that have lots of water but are not flooded. Water hyacinth grows on swamps and has the potential to be a source of organic fertilizer. The successful use of water hyacinth as compost material will provide multiple benefits. Besides being able to obtain compost which can restore soil fertility, it can also reduce losses caused by water hyacinth. This study aims to (i) determine the effect of compost from various parts of water hyacinth on the growth and yield of celery plants, (ii) obtain the best parts of various parts of water hyacinth compost on the growth and yield of celery plants. The study was carried out in the Danau Panggang Village of Danau Panggang Subdistrict in March 2012 to May 2012, this study used Randomized block design (RBD) with one factor. The treatments that were tried were compost from various parts of water hyacinth (E) which consisted of 4 levels, namely: control e0 (without treatment), e1: bottom compost (root,) e2: upper compost (stem and root), and e3: compost all parts of the plant. The results of this study showed that the compost from the water hyacinth root (e1) was the best treatment for the observation of plant height, leaf number and wet weight of celery plants.