Effect of chilling and gibberellic acid on growth potential of excised embryos of Ruellia humilis.

Abstract:

:Dormancy in intact seeds of Ruellia humilis is broken by chilling or by treatment with gibberellic acid (GA3). Embryos are nondormant and will grow when the seed coat is removed completely. Embryos from chilled or GA3-treated seeds have more growth potential than embryos from nontreated seeds. Dormancy is ascribed to the mechanical restriction of the embryo by the seed coat. Chilling and treatment with GA3 break dormancy by increasing the expansive force of the embryo; thus, chilled or GA3-treated embryos exert enough expansive force to break through the seed coat, whereas nontreated embryos do not.

journal_name

Planta

journal_title

Planta

authors

Baskin JM,Baskin CC

doi

10.1007/BF00385202

subject

Has Abstract

pub_date

1971-12-01 00:00:00

pages

365-9

issue

4

eissn

0032-0935

issn

1432-2048

journal_volume

100

pub_type

杂志文章

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