Garuda - Garba Rujukan Digital

Estimation of Variance and Heritability Components in F2 Populations of Maize (Zea mays L.) in Dry Land Amanah Aulia Adeputri; M. Taufik Fauzi; Suwardji; A. A. Ketut Sudharmawan
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5326

The F2 population of maize plants that has been obtained from hybridization between NK212 and NK7328 varieties has not been suspected of genetic diversity components and heritability in the narrow sense. This study aimed to determine the magnitude of the alleged value of variety components and heritability, as well as determine the types of varieties to be formed. The experimental design used was the Group Randomized Design (RAK) - North Carrolina I (NCI) consisting of 120 treatments. The experimental setup involved 40 male parent plants, each paired with 3 female parent plants in season I, and this procedure was replicated twice, resulting in a total of 240 treatment groups. The collected data was subjected to analysis through variety analysis (ANOVA) utilizing the NCI model. The results showed that the presumptive value of additive variety and dominant variety based on the results of data analysis varied, but in all observed traits the dominant variety value tended to be greater. Most of the observed traits have a negative heritability presumptive value, except for stem diameter, panicle exit age, fresh pruning weight, and 1000 seed weights. The conclusion obtained is that most of the observed properties have additive variance values and negative heritability values; the dominant variance value in all observed properties is greater than that of additive variety; The heritability of most traits cannot be predicted because they are negative. Therefore, it is advisable for the improvement of the F2 population is with the formation of hybrids.

Morphological Appearance of M3 Generation Mutant Strains of Brown Rice (G16) to Support Rice Seedingi in Upland Ria Ayu Chandraningsih; Taufik Fauzi; Suwardji; Anak Agung Ketut Sudharmawan
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.5329

Brown rice local cultivars are found in West Nusa Tenggara, but brown rice is still very rare to be used as a source of genetic diversity and its improvement is also lacking to be considered. This research aims to determine the effect of 300 Gy gamma ray irradiation on the quantitative properties of third generation G16 brown rice (M3) in the uplands. In this research, an experimental method was used with field experiments from May to December 2022 in Tatar Hamlet, Nyurlembang Village, Narmada District, West Lombok Regency. This research used Randomized Block Design (RBD) in an Augmented design with 18 treatments consisting of 15 G16 mutant strains and 3 comparison plants. The data obtained were analyzed using Analysis of Variance (Anova) with a level of 5%, then the real different treatment was further tested using the Least Significance Different (LSD) test. Based on the results of the research, it was obtained that some of the quantitative traits observed did not have differences in the properties of the elders and their comparators. The morphological apperance of mutant plants is the same as that of both the elders and the comparison varieties. However, it can be said that all strains based on their morphological appearance have the potential to be developed on dry land, because all strains tested show the same results compared to their elders and peers.

Genetic Parameters of Rice Strains (Oryza sativa L.) Functional for Development and Increasing Production in Medium Plain Dry Lands Amilia Qurota A'yun; M. Taufik Fauzi; Suwardji; A. A. K. Sudharmawan
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.5331

Functional rice is a food that contains more than one forming component that is useful for health. Nowadays public interest in functional food is increasing, so functional rice production needs to be increased. Therefore, this research was conducted with the hope of obtaining information on superior agronomic characters to increase the yield power of functional rice strains. The method used was experimental using a randomized group design (RAK). Data analysis consists of Analysis of Variance, genetic diversity coefficient, phenotype diversity coefficient, genotype correlation, phenotype correlation, and heritability in a broad sense. The results showed that the heritability value of high area meaning is found in the character of flowering, harvest age, plant height, panicle length of the amount of grain contained, and the amount of empty grain. The high value of the KKG and KKF is indicated by the character of the number of non-productive saplings, while the lowest value is indicated by the character of the age of harvest. All quantitative characters observed showed positive genotypic correlation results to grain weight per clump. While in phenotypic correlation only the character of plant height, panicle length, the amount of grain containing, the amount of hollow grain and the weight of 100 grains are positive. Based on the analysis that has been carried out the character of plant height, panicle length, the amount of grain containing the amount of hollow grain and the weight of 100 grains need to be taken into account as selection criteria to obtain high-yielding functional rice.

Analysis of Soil Chemical Properties and Their Relationship with Tobacco Plant Productivity in Dry Land Ema Rahila Azzahra; Taufik Fauzi; Suwardji; A. A. Ketut Sudharmawan
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.5334

Dryland is defined as land that is never flooded or submerged in water throughout the year. Indonesia has a very large area of dryland, which is 11,876,881 hectares. Generally, drylands have low fertility and thin soil layers with low organic matter content. There are several types of plants that can be cultivated in drylands, one of which is tobacco. Environmental conditions such as soil conditions (physical and chemical properties of soil) affect the production and quality of tobacco, among others, soil status. In this topic, the descriptive method was used as an approach. Data collection techniques (literature) were carried out using books, articles, and scientific journals derived from previous research. It was concluded that an increase in C-organic content, CEC, and KB increased tobacco production. Conversely, an increase in pH can adversely affect tobacco production and quality.

Potential Utilization of Plant Growth Promoting Rhizobacteria (PGPR) and Various Growing Media on Soil Fertility in Dry Land Demy Afiya Restiyah; Taufik Fauzi; Suwardji; A. A. Ketut Sudharmawan
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.5339

The potential of dry land for agricultural development in Indonesia is very large, one way that can be done to increase soil fertility and productivity of dry land is by using PGPR biologival fertilizers and various planting media such as husk charcoal and cocopeat. The purpose of this writing is to determine the effect of giving Plant Growth Promoting Rhizobacteria and various planting media on soil fertility in dry land. This research was conducted using a descriptive method by obtaining data from publication in the form of research journal, review journal published in international and national journals and other related information. Descriptive analysis was carried out by means of 1). Do a search of appropriate literature 2). Screening and selecting relevant articles 3). Conducting qualitative analysis and 4). Compile articles. The application of PGPR and various planting media can increase the physical and chemical fertility of the soil and nutrient absorption for the soil, such as improving soil ph, organic C, P-total and soil N-total. The mechanism of PGPR to increase soil fertility is by fixing nitrogen in the air with the help of the enzyme nitogenase, as a phosphate solvent, and as a producer of plant hormones.

The Status of Land Cover in The Main Watershed (DAS) of Lombok Island and its Potential as Acause of Drought Hidayatun Nufus; Taufik Fauzi; A. A. Ketut Sudarmawan; Suwardji; Mahrup
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5342

Changes in land cover that occur from year to year continue to increase. Human activity, especially in the utilization of natural resources, especially forests for various purposes, resulted in an increase in open land as well as critical land. As a result, the upstream watershed area which originally had an important role for the hydrological cycle, gradually decreased its function and ability as a catchment area. The purpose of this writing is to find out the status of land cover in the main watershed of the Lombok island on the class of land cover that applies universally, and examine its potential as a cause of drought on the island of Lombok. This research was conducted using the descriptive method, through the following stages, namely (i) secondary data collection, (ii) data analysis and (iii) data interpretation. This research was conducted from March 2023 to June 2023. The research area covers the island of Lombok. The four main watersheds (DAS), namely Dodokan, Menange, Pustik and Jelateng. Data 12 Land cover, namely Evergreen/Deciduous needieleaf, Evergreen broadeaf tress, Deciduous brodeaf tres, Mixed/other tresses, Shurbs, Herbaceous vegetation, Cultivated and manged vegetation, Regularly flooded vegetation, Urban/built-up, Snow/ice, Barren, Open water downloaded from the wibe site earthenv.org. Altitude data is downloaded from the web site https://globalsolaratlas.info/map.

Review Paper: Use of Vetiver (Vetiveria zizanoides L.) and Rice Husk Biochar in Remediation of Mercury (Hg) Polluted Soil Baiq Siti Rohmaniati; Taufik Fauzi; A. A. Ketut Sudharmawan; Suwardji
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.5345

Indonesia has abundant natural resources. One of the great natural resources is mineral resources in the form of gold. With this potential, the number of national mining locations continues to increase, both large, medium, small and unlicensed gold mining (PETI) carried out directly by the community, either in groups or individually, which can have a negative impact on the environment. pollution such as land and water. , because the results of gold processing which contain heavy metals (Hg) are immediately thrown away without any further processing. This can harm the surrounding environment and even enter the food chain. Therefore, the purpose of this paper is to study and find out related information regarding the effectiveness of phytoremediation of soil contaminated with heavy metals such as mercury (Hg) using vetiver (Vetiveria zizanoides L.) and soil ameliorant materials in the form of rice husks. biochar to reduce the concentration of these heavy metals, as well as the mechanisms involved in phytoremediation of soil contaminated with heavy metals. The vetiver root plant (Vetiveria zizanoides L) is very effective for use in remediating soil contaminated with mercury (Hg) or other heavy metals. The use of biochar can influence the growth and absorption of heavy metals by vetiver (Vetiveria zizanoides L). Biochar is also able to improve the physical and chemical properties of soil and stabilize heavy metals in the soil.

Title

Found 7 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 7 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 7 Documents
Search