Production of Haploid & Use of Doubled Haploids in Wheat Breeding

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Barley x H. Bulbosum• Conventional method• Good haploid production method for barley• Restricted to Kr 1 Kr 2 genotypes
Wheat x Maize Hybridization• An alternative to anther culture and the H. bulbosumsystem in wheat• First reported by Laurie and Bennett (1986)• Less genotype-dependent response• Higher efficacy (Kisana et al., 1993)– 2-3 times greater than anther culture– Save 4-6 weeks in obtaining the same age haploidgreen plants• Less Variation (Kisana et al., 1993)– Fewer aneuploids or chromosomal abnormalities– Fewer spontaneous regeneration
Page 4 and 5: Breeding Using Doubled Haploid Syst
Page 6: Backcrossing or Pyramiding• Paren
Page 10 and 11: Application of Doubled HaploidGenet
Page 12 and 13: Methodologies for inducing haploid
Page 16 and 17: Proceduresof Wheat x Maize Hybridiz
Page 18 and 19: Pollination• Fresh pollen• Poll
Page 20 and 21: Embryo Culture• Excise embryos fr
Page 22 and 23: Doubled Haploid Production• Colch
Page 24 and 25: Colchicine Treatment• Colchicine
Page 26 and 27: Colchicine Treatment• Colchicine
Page 28 and 29: After Colchicine Treatment
Page 30 and 31: Factors?• Pre-hybridization• Ge
Page 32 and 33: Table1. Haploid production by wheat
Page 34 and 35: Haploid Productionin Twelve Wheat F
Page 36 and 37: Efficiency of Haploid Production•
Page 38 and 39: Increase the Efficacyof Wheat x Mai
Page 40 and 41: Summaryof Wheat x Maize System• S

Production of Haploid & Use of Doubled Haploids in Wheat Breeding

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