TAILIEUCHUNG - Line × tester analysis to determine extent of heterosis for various yield and quality parameters in sugarcane (Saccharum officinarum)

Since sugarcane is a vegetatively propagated crop, heterosis can be settled and exploited in F1 age. The extent of heterosis gives a foundation to decide genetic diversity of variety and furthermore serves as a guide for the decision of attractive superior parents. Information about the magnitude of heterosis is the prerequisite criteria for the development of superior hybrids. A good hybrid should manifest high amount of heterosis for commercial exploitation. High and low positive heterosis observed was mainly due to varying genetic composition between parents of different crosses for the components characters. The knowledge of combining ability together with per se performance of the parents and hybrids, and heterotic response helps the breeders in selecting suitable parents and crosses for their use in a systematic breeding programme. The information on heterosis for quality and yield attributing characters obtain from the results of this Line × Tester experiment including cross progenies of four lines and two testers along with parents and six checks were discussed here. | Line × tester analysis to determine extent of heterosis for various yield and quality parameters in sugarcane (Saccharum officinarum)

• Sinh học
• Line x tester
• Hybrid vigour
• Economic heterosis
• Determine extent
• Heterosis for various yield
• Quality parameters
• Combining ability
• Cowpea [Vigna unguiculata (L
• ) Walp]
• Line X tester analysis
• Combining ability in cowpea
• Gene action
• Pearl millet
• Line × tester analysis
• Arid conditions
• Line × tester
• Temperate conditions
• Various morpho agronomic traits
• Line x tester yanalysis in maize
• Yield and quality
• Tester analysis in chilli
• Identification of superior parents
• Hybrids for yield
• Quality attributing traits
• Combining ability analysis
• Maize inbred lines
• Line x tester mating design
• Plant population density
• Nonadditive genetic variances
• Seed cotton yield
• Gca and Sca effects
• Upland cotton (Gossypium hirsutum L )
• Indian mustard
• Additive genetic variances were predominant
• Components of variance
• Degree of dominance
• Linseed (Linum usitatissimum L )
• Heterosis for seed yield
• Attributing traits in linseed
• Line × tester mating design
• Sesame (Sesamum indicum L )
• Type of gene action
• Tester analysis in sesame
• Line in sesame
• Erect leaf
• Inbred line
• Grain yield
• Leaf angle
• Line mating design
• Quality traits and yield
• Tester analysis carried over environments
• Estimation of hybrid vigour
• Quality traits of okra
• Biochemical parameter
• Rice (Oryza sativa L
• Biochemical evaluation
• Quality parameters in rice
• BLB (Xanthomonas oryzae pv
• oryzae)
• Yield loss
• Sodic soil
• Bacteria leaf
• Yield components
• Sesame (Sesamum indicum L
• Exploitation of heterosis
• Heterosis for yield
• Yield contributing character
• Fiber quality
• Gossipium Arboreum L
• Combining ability studies
• Fiber quality traits
• Yield and quality parameters
• Early generation inbred lines of okra
• Diverse CMS source
• Helianthus petiolaris sp fallax
• H annuus sp lenticularis
• Diverse CMS sources in sunflower
• General combining ability
• Specific combing ability
• Bacterial wilt resistance in tomato
• Kharif sorghum (Sorghum bicolor (L ) Moench)
• Early maturity in Kharif sorghum
• Promising parents for grain yield
• Plant architecture
• Contrasting planting densities
• Heterosis breeding
• Bt cotton (Gossypium hirsutum L )
• Okra [Abelmoschus esculentus (L ) Moench]
• Sca effect and component traits
• Attributing traits in okra
• Hybrid rice
• Rice (Oryza sativa L )
• Yield component traits in rice
• Standard heterosis
• Specific combining ability
• Kharif Sorghum
• Detection of promising cross combinations
• Basis of standard heterosis
• Potential donor parents
• Potential donor parents for yield
• Associated components