Millets are small grained cereals belonging to the family Gramineae and they include major millets and minor millets. Millets are quite important from the point of food and nutritional security at regional and house hold level. In India's dry lands, they play a significant role in meeting food and fodder requirements of farming communities. Millets are found to have high nutritive value comparable and even superior to major cereals with respect to protein, energy, vitamins and minerals. They are also rich sources of phytochemicals and micronutrients. Since millet is gluten-free, it is an excellent option for the people who are suffering from atherosclerosis, diabetics and heart disease. In the face of increasing population and stagnant wheat and rice production, millets can be a promising alternative in solving the problem of food insecurity and malnutrition, because of their sustainability in adverse agro-climatic conditions. These crops have substantive potential in broadening the genetic diversity of the food basket and ensuring improved food and nutrition security.
Combining ability has been proved to be a method to identify and select the parents and hybrids for increased production through the exploitation of heterosis. The exploitation of heterosis would be useful if suitable hybrids are produced for low yielding environmental conditions of littoral sandy soil. Combining ability effects for early germination, seedling girth, seedling height and breadth of laminate leaf on coconut have been reported by Louis and Chopra (1991) and on husked nut weight by Fernando (1996). Estimation of GCA and SCA variance will help to find out the gene action involved in a particular character and thus one can decide the breeding method for the improvement of the character. The present investigation was carried out to find out the general and specific combining ability effects of parents and hybrids at Central Plantation Crops Research Institute, Kasaragod.
In the face of the rapidly dwindling carbon budgets, negative emission technologies are widely suggested as required to stabilize the Earth’s climate. However, finding cost-effective, socially acceptable, and politically achievable means to enable such technologies remains a challenge. We propose solutions based on negative emission technologies to facilitate wealth creation for the stakeholders while helping to mitigate climate change. This paper comes up with suggestions and guidelines on significantly increasing carbon sequestration in coffee farms. A coffee and jackfruit agroforestry-based case study is presented along with an array of technical interventions, having a special focus on bioenergy and biochar, potentially leading to “negative emissions at negative cost.” The strategies for integrating food production with soil and water management, fuel production, adoption of renewable energy systems and timber management are outlined. The emphasis is on combining biological and engineering sciences to devise a practically viable niche that is easy to adopt, adapt and scale up for the communities and regions to achieve net negative emissions. The concerns expressed in the recent literature on the implementation of emission reduction and negative emission technologies are briefly presented. The novel opportunities to alleviate these concerns arising from our proposed interventions are then pointed out. Our analysis indicates that 1 ha coffee jackfruit-based agroforestry can additionally sequester around 10 tonnes of CO2-eq and lead to an income enhancement of up to 3,000–4,000 Euros in comparison to unshaded coffee. Finally, the global outlook for an easily adoptable nature-based approach is presented, suggesting an opportunity to implement revenue-generating negative emission technologies on a gigatonne scale. We anticipate that our approach presented in the paper results in increased attention to the development of practically viable science and technology-based interventions in order to support the speeding up of climate change mitigation efforts.
Identification of prepotent palms among the commonly grown tall cultivars helps in improving the yield substantially. The efforts made in selection of prepotent mother palms and identification at seedling stage is briefly reviewed. The merits and demerits of progeny testing are discussed and future lines of work are indicated.
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