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Evidence for a graft-transmissible substance which delays apical senescence in Pisum sativum L

Apical senescence in an early flowering line of pea, G2, is greatly delayed by short days. This behavior is controlled by two dominant genes. Apical senescence of ungrafted, insensitive (I) lines is unaffected by photoperiod. When I-type scions with one of the two required genes were grafted onto G2...

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Published in:Planta 1977, Vol.135 (1), p.93-94
Main Authors: Proebsting, W.M., Davies, P.J., Marx, G.A.
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Language:English
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cited_by cdi_FETCH-LOGICAL-c330t-854f3032277eff571643a248c102177eb54ef02fc914ed365e16098ab46459403
cites cdi_FETCH-LOGICAL-c330t-854f3032277eff571643a248c102177eb54ef02fc914ed365e16098ab46459403
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creator Proebsting, W.M.
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description Apical senescence in an early flowering line of pea, G2, is greatly delayed by short days. This behavior is controlled by two dominant genes. Apical senescence of ungrafted, insensitive (I) lines is unaffected by photoperiod. When I-type scions with one of the two required genes were grafted onto G2, apical senescence of the I-type was delayed in short days, but not in long days. Flowering of the I-type was unaffected. The apex of the G2 stock was unaffected as well. Apical senescence of an I-type line lacking both photoperiod genes was not delayed when grafted on G2 in short days. It is concluded that G2 plants grown in short days produce a graft-transmissible factor which delays apical senescence of photoperiodically insensitive lines.
doi_str_mv 10.1007/BF00387982
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source JSTOR Archival Journals; Springer LINK Archives
subjects Cellular senescence
Delay lines
Flowering
Fruits
Graftage
Peas
Photoperiod
Plants
Scions
Short Communication
Tissue grafting
title Evidence for a graft-transmissible substance which delays apical senescence in Pisum sativum L
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