Guidelines for Developing Roselle (Hibiscus sabdariffa L.) Variety to Enhance Food Security and Resilience to Climate Change | Chapter 06 | Agricultural Sciences: Techniques and Innovations Vol. 6

 

Roselle (Hibiscus sabdariffa L.) is an underutilised annual crop mainly valued for its edible calyces, leaves and fibre. It is a tetraploid species belonging to the Malvaceae family with significant economic and medicinal importance. It is a self-pollinated crop which has cleistogamous flowers. It is mainly cultivated in tropical and subtropical regions, including India, China, Thailand and various African and Caribbean countries. In India, it is widely grown in Andhra Pradesh, West Bengal, Odisha, Maharashtra and the North-Eastern states. Geo-climatic conditions of Roselle are favourable for the production of Roselle as it requires a warm and humid climate for its growth. The crop is known for its climate resilience and ability to grow in marginal soils, making it ideal for sustainable agriculture. Calyces of Roselle are rich in vitamins, antioxidants and widely used in postharvest processing industries to prepare food products like juices, teas and jams, while its stem provides coarse fibre used for rope and sack production. Calyces of Roselle have huge medicinal importance. Despite having immense potential, Roselle breeding has received very limited attention. Important breeding objectives include improving calyx and fibre yield, quality and resistance to pests, diseases, and abiotic stresses. Methods like pure line selection, hybridisation, and biotechnological tools are being used to develop improved varieties. Promising cultivars like HS-4288, Ujjal and JOR RS lines have shown good performance. Given its diverse applications and adaptability, focused research and development efforts are essential to unlock the full potential of Roselle in the food and fibre industries.

 

Author(s)details:-

 

Homikhya Phukon
Department of Plant Breeding and Genetics, Assam Agricultural University, Jorhat -785013, India.

 

G.C. Bora
Department of Plant Breeding and Genetics, Assam Agricultural University, Jorhat -785013, India.

 

Jahnabi Devi
Department of Plant Breeding and Genetics, Assam Agricultural University, Jorhat -785013, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/asti/v6/6680

Characterization and Evaluation of Roselle and Kevlar Hybrid Composites Reinforced with Natural Fibers | Chapter 4 | Theory and Applications of Engineering Research Vol. 7

 

Over the previous three decades, materials with functionally graded and customized qualities have been produced. These components are extensively utilized in the system to save energy consumption and provide comfortable driving. Composite materials based on polymers are becoming more and more popular and are employed in a variety of fields. This book chapter centered essentially around the ongoing patterns and advancements in Bio compounds as connected to the therapeutic and building industry, referring to certain models. Present research is Alkali treated along with Silane treated and untreated fibres hybrid composite was prepared and all the types of physical and chemical properties studied. All the Silane treated composite shown enhanced concert than untreated composite. Performance possessions of composite devising various tenders in textile& non textile. Silane has an added advantage both physical and chemical properties enhancement.

Author(s) Details:

Raghuram Pradhan,
Department of Mechanical Engineering, PACE Institute of Technology & Sciences (Autonomous), Near Valluramma Temple, Vallur-523272, Andhra Pradesh, India.

Yarram Srinivasa Reddy,
Department of Mechanical Engineering, PACE Institute of Technology & Sciences (Autonomous), Near Valluramma Temple, Vallur-523272, Andhra Pradesh, India.

Md. Jabihulla Shariff,
Department of Mechanical Engineering, PACE Institute of Technology & Sciences (Autonomous), Near Valluramma Temple, Vallur-523272, Andhra Pradesh, India.

Please see the link here: https://stm.bookpi.org/TAER-V7/article/view/13683