TAILIEUCHUNG - Combining ability studies and the gene action involved in sunflower lines

5 CMS lines (as female lines) and 8 lines as a testers (used as males) for hybridisation in Line × Tester fashion to study combining ability general and specific combining ability and also the gene action involved. All the F1hybrid combinations were further evaluated in kharif 2018 for combining ability studies for 10 different traits. Testers used showed significant variance for all the traits except for test weight and days to maturity, where as lines exhibited significant variance for all the traits. From the present investigation it was observed that none of the testers showed good gca effect for all the traits studied. But DSR-132 recorded significant gca effect for six traits viz, plant height, SPAD at 60 DAS, days to flowering, head diameter, days to maturity and seed yield per ha. Similarly the line (which was used as female parent ) CMS 7-1-1A recorded better gca effect for plant height, days to 50 %flowering, seed yield per hectare and oil content None of the hybrid combinations showed significant sca effect for all the traits studied, but the combination 4546 × DSF2 A × DSR-132 recorded high and significant sca effect for the traits viz, days to 50 percent flowering, SPAD chlorophyll content at 60 DAS, head diameter, test weight, seed yield per hectare, oil content and oil yield. | Combining ability studies and the gene action involved in sunflower lines

• Nông nghiệp
• Combining ability studies
• Gene action involved
• Gene action involved in sunflower lines
• Sunflower lines
• SPAD chlorophyll content
• Combining ability
• Combining ability studies in blackgram
• Blackgram (Vigna mungo (L
• ) Hepper
• Basis of SCA effects
• Bitter gourd (Momordica charantia L )
• Combining ability studies for yield
• Plant characters in bitter gourd
• General combining ability
• Specific combining ability
• Half diallel
• Quality parameters
• Combining ability studies in okra
• Standard heterosis
• Heterosis studies in maize
• Combining ability studies in tomato
• Solanum lycopersicum L
• Mid hills
• Yield per plant and ascorbic acid
• F1 hybrids
• Line x testers
• Snapmelon hybrids
• Combining ability studies on cucumber
• Fruit harvest
• Combining ability studies in bitter gourd
• Bitter gourd
• Quantitative characters
• Single cross hybrids of maize
• Maize (Zea mays L
• Specific combining ability studies
• Non additive gene action controlling
• Abelmoschus esculentus L Moench
• Gca effects
• Sca effects
• Line x Tester
• Hybrid rice
• Rice (Oryza sativa L )
• Yield component traits in rice
• Line×tester
• Combining ability studies in maize
• Drought tolerance
• TLB disease resistance
• Crop improvement
• Studies on magnitude
• Genetic variability
• Estimates of combining ability
• Yield and its contributing traits
• Rabi sorghum
• Studies on combining ability
• Yield and its component traits
• Line x Tester analysis
• Specific combing ability
• Bacterial wilt resistance in tomato
• Forage sorghum
• Sorghum bicolour L Moench
• Yield and quality parameters
• Maize (Zea mays L )
• Genetic action studies
• Related traits in maize
• Fibre strength
• Cotton (G hirsutum)
• Conventional hybrids of cotton
• Combining ability studies in CMS based
• Yield components
• Greengram (Vigna radiata (L ) Wilczek)
• Nutritional traits in greengram
• Ridge gourd
• Luffa accutangula
• Qualitative traits
• Combining ability studies in ridge gourd
• Genetic variance
• Gene actions and Hybridization
• Component traits in groundnut
• Combining ability studies in sunflower
• Seed yield
• Objective to estimate the GCA
• Sca effect for seed yield
• Gene action
• Line and tester
• Tomato (Solanum lycopersicum L )
• Grain yield
• Salinity tolerant restorer lines in rice
• Brinjal for yield
• Yield components traits
• Good combiner for growth
• Hybrid rice (Oryza sativa L )
• Combining ability analysis in hybrid rice
• Component characters