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1996•Indian Journal of HorticultureOpen access

Studies on heterosis and inbreeding depression in tropical cauliflower

Jasneet Singh, Jagshand Singh, Rajinder Singh

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Abstract

In cauliflower (maturity group II), six crosses involving five parents were assessed to determine the magnitude of heterosis (Heterobeltiosis), in-breeding depression and combining ability. The hybrids Poosi × Pant Subhra and 12-C × Improved Japanese exhibited significant heterosis over better parent for most of the characters. 12-C × Improved Japanese showed significant inbreeding depression for all the characters. The Poosi (line) and Aghani (tester) were good general combiner for yield and its major component characters.

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In cauliflower (maturity group II), six crosses involving five parents were assessed to determine the magnitude of heterosis (Heterobeltiosis), in-breeding depression and combining ability. The hybrids Poosi × Pant Subhra and 12-C × Improved Japanese exhibited significant heterosis over better parent for most of the characters. 12-C × Improved Japanese showed significant inbreeding depression for all the characters. The Poosi (line) and Aghani (tester) were good general combiner for yield and its major component characters.

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Available abstract

In cauliflower (maturity group II), six crosses involving five parents were assessed to determine the magnitude of heterosis (Heterobeltiosis), in-breeding depression and combining ability. The hybrids Poosi × Pant Subhra and 12-C × Improved Japanese exhibited significant heterosis over better parent for most of the characters. 12-C × Improved Japanese showed significant inbreeding depression for all the characters. The Poosi (line) and Aghani (tester) were good general combiner for yield and its major component characters.

Key concepts: Heterosis, Inbreeding depression, Hybrid, Insomnia, Biology, Forensic science, Veterinary medicine, Inbreeding

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