Some observations on male-sterility in Geranium sylvaticum L. var. alpestre Schur.
نویسندگان
چکیده
منابع مشابه
Observations on Inheritance of Male Sterility in Apricot
Male sterility is defined as the deviant condition in normally bisexual plants when no viable pollen is formed (Frankel and Galun, 1977). Male sterility has been exploited as an effective tool to aid hybrid seed production in many crops. Using this trait, seed producers can transform one inbred from a planned hybridization into a “female” line, thereby ensuring seed of hybrid origin on the male...
متن کاملSex allocation of females and hermaphrodites in the gynodioecious Geranium sylvaticum.
Seed production and patterns of sex allocation were studied in female and hermaphroditic plants in two gynodioecious populations of Geranium sylvaticum (Geraniaceae). Females produced more flower buds and seeds than hermaphrodites in one of the two study populations. The other female traits measured (pistil biomass, seed number per fruit, individual seed mass) did not differ between the gender ...
متن کاملNectar Sugar Production across Floral Phases in the Gynodioecious Protandrous Plant Geranium sylvaticum
Many zoophilous plants attract their pollinators by offering nectar as a reward. In gynodioecious plants (i.e. populations are composed of female and hermaphrodite individuals) nectar production has been repeatedly reported to be larger in hermaphrodite compared to female flowers even though nectar production across the different floral phases in dichogamous plants (i.e. plants with time separa...
متن کاملon some bayesian statistical models in actuarial science with emphasis on claim count
چکیده ندارد.
15 صفحه اولInhibition of acetylcholinesterase by extracts and constituents from Angelica archangelica and Geranium sylvaticum.
The aim of this study was to explore the acetylcholinesterase (AChE) inhibition of several Icelandic medicinal herbs. Ethanolic extracts of Angelica archangelica seeds and the aerial parts of Geranium sylvaticum proved effective, with IC50 values of 2.20 mg/ml and 3.56 mg/ml, respectively. The activity of imperatorin and xanthotoxin from A. archangelica was measured. Xanthotoxin proved much mor...
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ژورنال
عنوان ژورنال: Acta Societatis Botanicorum Poloniae
سال: 2015
ISSN: 2083-9480
DOI: 10.5586/asbp.1962.050