Rice is a salt-sensitive crop. The objective of this study was to evaluate the effect of salinity at flowering stage on physiological traits and yield of landrace rice. The experiment design was 4*10 Factorial in RCBD with 4 replications. Factor A was four salinity levels: control, 6, 12 and 16 dS/m; Factor B was 10 rice varieties. Data were collected on physiological traits and grain yield. The results showed that increasing salinity level decreased rice yield. The highest yield reduction was found when the rice received salt stress at 16 dS/m. In addition, rice varieties showed different yield performance when exposed to salt stress. In this found that Hom Yai variety had the lowest yield reduction when grown at 16 dS/m salinity level and did not differ from salt tolerant check variety.
การผลิตข้าวในประเทศไทยยังคงประสบปัญหาเกี่ยวกับสภาพพื้นที่ปลูกข้าวที่ไม่เหมาะสมต่อการเจริญเติบโต ซึ่งทำให้ผลผลิตของข้าวลดลง เช่น ปัญหาดินเค็ม โดยดินเค็มคือดินที่มีปริมาณเกลือที่ละลายน้ำได้ดีอยู่ในสารละลายดินสูงมากจนมีผลกระทบต่อการเจริญเติบโตและการสร้างผลผลิตของพืช อีกทั้งในปัจจุบัน สภาวะโลกร้อนมีความรุนแรงมากขึ้น และมีผลต่อเนื่องทำให้ความเครียดจากความเค็มมีความรุนแรงมากขึ้นด้วย การใช้ข้าวสายพันธุ์ที่มีความทนเค็มเป็นอีกวิธีที่จะช่วยแก้ปัญหาได้อย่างยั่งยืน ดังนั้นในการศึกษาครั้งนี้จึงสนใจศึกษาความเครียดเค็มในระยะออกดอกของข้าวที่ต่อเนื่องไปจนถึงระยะเก็บเกี่ยว โดยทำการศึกษาในพันธุ์ข้าวพื้นเมือง 6 พันธุ์ที่ผ่านการคัดเลือกแล้วว่าทนต่อความเค็มในระยะกล้าเปรียบเทียบกับข้าวพันธุ์ทนเค็มมาตรฐาน Pokkali และพันธุ์การค้า KDML105 ซึ่งผลจากการวิจัยที่ได้ในครั้งนี้สามารถนำไปเป็นข้อมูลพื้นฐานเพื่อใช้ในการปรับปรุงพันธุ์ข้าวให้มีความสามารถในการทนต่อสภาวะเครียดที่เกิดจากดินเค็ม และเป็นการคัดเลือกพันธุ์ข้าวที่มีศักยภาพในการทนเค็ม ตลอดจนส่งเสริมให้เกษตรกรปลูกในพื้นที่ที่กำลังประสบปัญหาจากสภาวะดินเค็มต่อไป
คณะเทคโนโลยีสารสนเทศ
This thesis aims to present the development of a metaverse project for the KMITL Lifelong Learning Center (KLLC) and KMITL Data Management Center (KDMC) for Public Relations at King Mongkut's Institute of Technology Ladkrabang, with the main goal of creating a metaverse prototype to promote learning and public relations through virtual reality technology for students, staff, and external individuals. In this project, the developers have created a metaverse system to simulate a virtual experience for users at the KMITL Lifelong Learning Center (KLLC) and KMITL Data Management Center (KDMC) for Public Relations at King Mongkut's Institute of Technology Ladkrabang. Users will be able to access the system through a web application developed with Unity, which is the tool used to create the metaverse system. The design allows users to visit and interact with various locations within the building to promote public relations in a more widespread virtual format. The developers used Maya and Unity software to create a metaverse system for modeling 3D objects and managing various functions, providing users with a realistic and novel experience. This project is expected to promote learning and the dissemination of information in an easily accessible modern format, creating opportunities for education and learning for those who cannot travel to see the actual locations. This makes metaverse technology an important tool for effectively developing learning and engagement in the digital age.
คณะวิทยาศาสตร์
In today’s rapidly expanding e-commerce environment, the massive volume of product reviews makes it crucial to summarize user opinions in a way that is both comprehensible and practically applicable. This research presents a system for analyzing product reviews using Aspect-Based Sentiment Analysis (ABSA), a Natural Language Processing (NLP) technique that identifies key aspects of a review (such as shipping, product quality, and packaging) and evaluates the sentiment (positive, negative, or neutral) associated with each aspect, allowing both consumers and merchants to gain more efficient access to in-depth insights. This project focuses on developing AI for Thai-language ABSA by utilizing WangchanBERTa, a model trained on Thai data, and comparing it with various standard approaches such as TF-IDF + Logistic Regression, Word2Vec + BiLSTM, and Multilingual BERT (mBERT/XLM-R) to assess their performance in terms of accuracy, speed, and resource usage. Additionally, a dashboard visualization is provided to help users quickly grasp review trends. The expected outcome is to create an AI tool that can be practically employed in the e-commerce industry, enabling consumers to make easier purchasing decisions and assisting merchants in effectively improving their products and services.
คณะเทคโนโลยีการเกษตร
This research gives a comprehensive overview of the use of antibiotics in livestock production, highlighting both the benefits and the risks associated with their use. The benefits, such as improving immunity, digestion, and reducing infections, are contrasted with the growing concern over antibiotic residues and the development of drug resistance. The shift towards alternatives like probiotics is explored as a sustainable solution, with a specific focus on lactic acid bacteria (LAB) found in the digestive systems of livestock. Thailand’s regulations, which control antibiotic use in animal feed, are also discussed, setting the stage for the study on LAB as a potential replacement for imported probiotics. 1. Use of Antibiotics in Livestock: Antibiotics have been used to promote growth, improve digestion, and prevent infections in livestock. However, the improper use of antibiotics can lead to residues in animal products and the development of drug-resistant bacteria. 2. Global Trends in Antibiotic Use: Many countries, like the European Union and Japan, have banned antibiotics as growth promoters, while others, like China and the U.S., are planning similar bans. 3. Thailand's Approach: Thailand has implemented a regulation since September 2020 to control the use of antibiotics in animal feed, requiring control at both feed mills and farms that mix their own feed. 4. Probiotics as an Alternative: Probiotics, particularly lactic acid bacteria (LAB), are being studied as an alternative to antibiotics. LAB are naturally found in the digestive tracts of livestock and are considered beneficial for maintaining gut health and replacing the need for antibiotics. The study examines the potential of LAB from Thai livestock (broilers, pigs, and cattle) as a sustainable alternative to imported probiotics, aiming to overcome issues like low survival rates of foreign probiotics in practice.