Morphology Performance On Six Black Rice Accessions (Oryza Sativa L.) In M1 Generation Irradiated By Gamma Rays

Increasing the genetic diversity of plants can be done through physical mutations with gamma-ray irradiation. This study aims to determine gamma-ray irradiation on the growth of six M1 generation black rice accessions. This research was conducted in May-October 2019 at the Experimental Rice Fields of the Tasikmalaya Perjuangan University, West Java. The materials used in this study were six accessions from Tasikmalaya (PH, PH2, PH3, PH5, PH7, and PH8) without 0 Gy irradiation and with 200 Gy gamma-ray irradiation of M1 generation. The results showed that gamma-ray irradiation reduced germination characteristics, seedling height, and flowering age. Some of the accessions showed different effects; there were a decrease and an increase in the characters of root length, plant height, number of productive tillers, number of unproductive tillers, and the total number of tillers.

The Effect of Organic Fertilizers on Growth and Yield of Water Spinach (Ipomoea reptans Poir)

Water spinach (Ipomoea reptans Poir) had been identified as a nutritious vegetable with high demand in Indonesia. Besides, this plant also has been evidenced to play an important role in environmental cleaning as phytoremediator. The study about the effect of organic fertilizers on the growth and yield of water spinach (Ipomoea reptans Poir) has been conducted in the Green House of Biology Department, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan. The study aims to investigate the most effective type of fertilizers and the dose for water spinach’s (Ipomoea reptans Poir) growth and yield. A Completely Randomized Factorial Design was designed for the experiment with two factors and three repetitions. The first factor is the type of fertilizer (chicken manure, cow manure, and compost), and the second factor is the dose of the fertilizer (1:1, 2:1, and 3:1). The parameters such as plant height, number of shoots, number of leaves, fresh weight, dry weight, leaf’s total chlorophyll content, and water content were measured to evaluate plant growth and yield. The General Linear Model used SPSS 21 programs was applied to analyze the collected data. Study results revealed that cow manure increased plant growth and yield significantly with dose 2:1 as the finest treatment, followed by dose 3:1. Cow manure also increased total chlorophyll content (8.0574c mg. L-1), with the most suitable dose was 2:1 (8.2807 mg. L-1). The plant’s water content tended to be high in chicken manure (93%), and the lower water content was in cow manure with dose 3:1 (87.5%).

The Population And Activities Of Peat Land Microorganism On Palm Oil Plantation Based On Depth And Age Of Plant

Population and activity of soil microorganisms can be used as indicators in soil management. This research aims to examine the population and activity of peat soil microorganisms based on the depth and age of oil palm plantations. This research is located in Katapiang, Batang Anai Subdistrict, Padang Pariaman District, which peat land is used for palm oil plantations and it getsa minimal plantation management. The research uses survey method in four stages: preparation, pre survey, main survey and sampling, laboratory analysis and data processing. Samples taken on peat land that planted with palm oil from ages 0-5 years, 5-10 years, 10-15 years, and samples from natural peatlands. Sampling at depths of 0-20 cm, 20-40 cm, and 40-60 cm. From the data analysis, the soil microorganisms population is decreasing with the increase of palm oil plantations age. The bacterial and fungal populations mostly are on the surface. Meanwhile, the highest activity of microorganisms is on 5-10 years palm oil land. Phosphate solvent bacteria mostly found in 5-10 yearspalm oil. Ground water level, water content and soil pH also affect the population and activity of soil microorganisms.

The Effect of High Temperature on α-Amylase Enzyme Activity in the Germination of Several Rice Varieties (Oryza sativa L.)

High temperatures can affect plant morphophysiological changes and enzyme denaturation that can interfere with the germination process. This research aims to study the effect of temperature changes on the α-amylase enzyme activity of several rice varieties germination. The research applies Factorial Experiment in Completely Random Design, where the first factor is four levels of rice varieties, Anak Daro, Batang Piaman, Cisokan, and Inpari 30. The second factor is temperature level, 28 0C, 32 0C, 36 0C, 40 0C, 44 0C and 48 0C. Results showed that the activity of the α -amylase enzymes of the four varieties increased when the temperature increased to reach the optimal temperature, and denaturation began to occur above that temperature. The highest enzyme activity of α-amylase of Anak Daro, Cisokan and Inpari 30 varieties at 48 0C is 0,14 micromol, 0,365 micromol dan 0,191 micromol. In contrast the optimum enzyme activity of α-amylase of Batang Piaman variety at a temperature of 40 0C is 0,237 micromol and when the temperature rises to 48 0C a decrease in the activity of the α-amylation enzyme is 0,138 micromol. The variation in the activity of α-amylase enzymes in the four varieties is probably due to genetic differences and sucrose content. The Batang Piaman and Cisokan varieties can only germinate up to 36 0C, while the Daro and Inpari 30 varieties can germinate up to 40 0C.

The Exploration And Identification Morphological Character Of Torch Ginger In Solok District West Sumatra Province

Torch ginger is one of the spices used as food and traditional medicine which is rich in antioxidants. However, the existence of this plant is decreasing every year, especially in Solok district, West Sumatra province. So it is necessary to explore and identify the morphology of kecombrang plants in Solok district, West Sumatra province. The research was conducted by exploring and analyzing the similarity clusters with the Minitab 16 application. The purpose of this study was to collect germplasm and study the morphological characters and similarities of tourch ginger plants in Solok district, West Sumatra province. The exploration results obtained 20 kecombrang plant accessions from 8 locations in Solok district. Kinship or similarity level obtained 2 clusters. The differences between the two plant clusters were indicated by the similarities and differences in morphological characters in the stem color, leaf edge color and flower stem color. The similarity value obtained is 0.22-1.00, which means the highest similarity is 100% and the lowest is 22%

The Effect Of Organic Fertilizer Types And Phosphate Fertilizer Dosage On Growth And Yield Of Chili (Capsicum Annum L.) Lotanbar Variety

Red chili plants are one of the important vegetable commodities and have high economic value in Indonesia, most of them are used for household and industrial purposes. The demand for red chili plants is increasing every year so that efforts are needed to increase the productivity of red chili plants. The objectives of study to determine (1) the effect of the interaction between the application of organic fertilizers and inorganic fertilizers on the growth and yield of red chili plants, (2) the effect of the type of organic fertilizer and the correct dosage of inorganic fertilizers on the growth and yield of red chili plants. The research was conducted from January to May 2019 in Sumani village, X Koto Singkarak sub District, Solok District with a height of ± 400 meters above sea level. The design was used a factorial design in a Randomized Block Design (RBD) with 2 factors. The first factor is the use of organic fertilizers derived from cow manure (A1) and straw compost (A2). The second factor is the use of SP-36 fertilizer as a source of phosphate at a dose of 10 g/plant (B1), a dose of 30 g/plant (B2), and a dose of 50 g/plant (B3), each treatment consisting of four sample plants. Data from the observations were carried out by analysis of variance, if the obtained F count was greater than F table 5% followed by a further test of Duncan New Multiple Range Test (DNMRT) at the 5% real level. Parameters were observed: plant height, stem diameter, number of fruits, fruit length, fruit weight per plant, and yield of chili per hectare. The results showed that: (1) The results showed that the application of organic fertilizers was better for the growth and yield of Lotanbar chili plants. (2) The provision of cow manure can increase the growth of plant height, fruit length, fruit weight per plant and plant yield per hectare (3) There is no interaction between types of organic fertilizers and the dosage of phosphate fertilizers.

The Results of Testing Several Potato Varieties (Solanum tuberosum L.) Under The Stands of Immature Coffee Plants

Potatoes have the potential to be developed as a source of carbohydrates in supporting food diversification programs. Reduced potatoes production has resulted from a decrease in the land area for potato cultivation. The effort that can be made to increase land productivity is through multiple cropping systems such as intercropping, intermittent intercropping, streak planting, annual intercropping, and agroforestry. It is necessary to use idle land under plantation stands that have not been optimized, in increasing productivity and efficiency of agricultural production systems. This study aims to get the varieties that have the best growth and yields planted under immature coffee stands. This research applies a Single Factorial Experiment in Completely Random Design, where the factor is four levels of potato varieties, Granola (V1), Bliss (V2), Kentang Merah (V3) and Batang Hitam (V4). Observations made include plant height, number of leaves, leaf length, leaf width, tuber length, tuber diameter, weight per tuber, number of tubers/plat, and total tuber by grade tubers (Small, Medium, Large, Very large). Based on the analysis variance of each observation variable shows, there is an effect of the variable observation except the width of the leaves. Granola provides the best response to the growth and yield of potato plants

Analysis of Marketing Efficiency of Garlic from Nagari SalayoTanang Bukik Sileh Sub District of Lembang Jaya District of Solok

This study aims to describe the marketing channel of garlic from Nagari SalayoTanang Bukik Sileh and to analyze the efficiency of the marketing channel. The study used a survey method, and data were gathered from 30 farmers who chose randomly from 103 farmers and intermediary traders. The research finds that there are four types of marketing channels of garlic in the area. The market channels are as follows: 1) Farmers → Breeders → Farmers, 2) Farmers →wholesalers→Retailers→ Consumers, 3) Farmers → Retailers (in the form of dried onions) → Consumers, 4) Farmers → Retailers → Consumers. Moreover, there is no proportional shared profit among the four marketing channels. Farmers received lower earnings than their proportionate profits, but on the other hand, the benefits received by breeders, wholesalers, and retailers were higher than their proportional profits, so that the marketing channels were inefficient.

The Direct Organogenesis In Local Clones Of Patchouli Plant( Pogostemon cablin Benth)InVitro

Background and Objective: The purpose of this research is to get to be able to identify local patchouli plants that are able to produce the best plantlets in many concentrations of BAP. Materials and Methods: The research conducted in Laboratory of Tissue Culture Faculty of Agriculture, Andalas University from May until November 2019. The research material used in this study was the accession of patchouli plants in West Sumatra, namely: Situak and method of research is completely randomized design.Results: Concentrations of 0.5 ppm kinetin + 0.5 ppm BAP, 0.5 ppm kinetin + 1 ppm BAP and 1 ppm kinetin + 1 ppm BAP can stimulate organogenesis (bud) in vitro

The Effect Of Seed Treatment Duration With Entomopathogenic Fungi Beauveria Bassiana On Seed Germination And Seedling Growth Of Chili

Beauveria bassiana (Balsamo) Vuill. is an entomopathogenic fungi can live endophytic on different kinds of plants. B. bassiana also play a role as growth promoters that improves seed germination and growth of plant. The effect of increased duration of seed treatment with Beauveria bassiana on seed germination and seedling parameters in chili were assessed in laboratory and field conditions. Chili seeds were soaked in the conidial suspension of B. bassiana in a concentration of 1 x 108 conidial / ml or in sterile distilled water for 3, 6, 9, and 12 h. Seed germination percentages and the vigor index were significantly affected by the application of B. bassiana. Overall, seed germination, the vigor index and plant growth of chili were significantly enhanced as seed treatment duration increased. B. bassiana can also accelerate seed germination of chili and increase of seedling growth. Soaking the seeds with a B. bassiana suspension for 9 hours is the best time to increase of seed germination and seedling growth of chili