Articles
PRELIMINARY RESULTS WITH A NOVEL METHOD OF HYBRID PRODUCTION – PAIR-CROSS HYBRIDS
Article number
539_14
Pages
117 – 121
Language
Abstract
Any plant can be considered to be an F1 hybrid between two theoretical inbred lines.
Crossing two plants together is, therefore, the equivalent of producing a double-cross hybrid.
The sporophytic self-incompatibility system of brassicas can be used to multiply the progeny of a single plant.
Crossing two such lines together produces a pair-cross= hybrid.
Experimental pair-crosses of kale have been made to examine the degree of heterosis that could be produced with such hybrids; dry matter yields of over 25% higher than the highest parent cultivar have been obtained.
Preliminary work with kale and turnips has produced lines with suitable S-alleles that enable the system to work.
The advantages and disadvantages of the proposed method are discussed.
Crossing two plants together is, therefore, the equivalent of producing a double-cross hybrid.
The sporophytic self-incompatibility system of brassicas can be used to multiply the progeny of a single plant.
Crossing two such lines together produces a pair-cross= hybrid.
Experimental pair-crosses of kale have been made to examine the degree of heterosis that could be produced with such hybrids; dry matter yields of over 25% higher than the highest parent cultivar have been obtained.
Preliminary work with kale and turnips has produced lines with suitable S-alleles that enable the system to work.
The advantages and disadvantages of the proposed method are discussed.
Authors
S. Gowers
Keywords
Brassica oleracea, kale, self-incompatibility
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