Rice breeding for multi‐canopy system: Estimations of genetic parameters and response to selection

Agronomy Journal, Journal Year: 2024, Volume and Issue: 116(5), P. 2129 - 2140

Published: June 29, 2024

Abstract One strategy currently being developed to increase rice ( Oryza sativa L.) productivity is using a multi‐canopy cropping system in cultivation. This method involves planting tall and short genotypes the same hill. The objective of this experiment was estimate genetic parameters response selection rice. Each arranged an augmented randomized complete block design with five replications for checks. In first season, 200 F 3 families from IPB196 IPB197 populations were planted monoculture as genotypes. IPB187‐F‐40‐1‐1 used genotype. Selection 25% based on grain weight per hill genotype performed, 50 selected their 4 seeds second season along results indicated × significant generations. Grain has similar realized h 2 ns (0.58) (0.54). Meanwhile, (3.60) higher compared (2.09), therefore lines should be conducted environment. A percentage 5% resulted selection. These findings may provide insight into acceleration breeding varieties system.

Language: Английский

A Comprehensive Review of Irrigation Practices and Challenges in Bangladesh: Pathways to Sustainable Agricultural Productivity

European Journal of Theoretical and Applied Sciences, Journal Year: 2024, Volume and Issue: 2(5), P. 834 - 861

Published: Sept. 1, 2024

Crop water is a critical input in any farming systems across the globe, especially developing countries South Asia where appropriate management remains major challenge such as case of Bangladesh. This review also aimed at describing changes status and perspective irrigation shift resource base from surface to groundwater early 1980s paved way ensure food self-sufficiency, feat country accomplished 1990s. But with increased use sources there have been some questions on sustainability this source, has seen back better techniques practices like micro-irrigation, drips auto irrigation. paper aims global irrigation, practicing contrast between gravity irrigators pressurized irrigators, besides focusing opportunities risks drip arid zones. It reviews issues confronted by Bangladesh climate change, sector problem, saving system. The discoveries advise that smart technologies should be included for efficiency so productivity not checked coming future. With regards this, it hope pinpoint areas enhanced support policy practice enhancement resources well meeting needs agricultural

Language: Английский