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Contribution to the methods of inducing polyploid tomatoes

, : Contribution to the methods of inducing polyploid tomatoes. Comptes Rendus de l' Academie Bulgare des Sciences 41(3): 81-82

A male-sterile parthenocarpic line, Start BR (ps2 pat2), was treated at various stages (seed, cotyledon, first pair of true leaves and 7-8 leaves) with 0.1, 0.2 and 0.3% colchicine for 24, 28 and 32 h. Only treatment at the cotyledon and first-leaf stage proved effective in polyploid production, and only colchicine concentrations >0.1%.

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Related references

Dzhafarov, N.A., 1967: Methods of inducing polyploid forms of mulberry. The best results were obtained by applying a 0.1% aqueous solution of colehicine at the stage of seed germination or a 0.04-0.1% solution at the cotyledon stage. The action of a 0.5-1.0% colehicine solution on growing points of adult trees was als...

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