The maintenance of mixed mating by cleistogamy in the perennial violet Viola septemloba (Violaceae)
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چکیده
منابع مشابه
study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour
this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
Patterns of chasmogamy and cleistogamy, a mixed-mating strategy in an endangered perennial
Cleistogamy (CL) in angiosperms historically has been understudied; however, its co-occurrence with chasmogamy (CH) across many plant species suggests a fitness advantage to maintaining this mixed-mating strategy. Maintenance of mixed-mating has been attributed to reproductive assurance, resource allocation or genetic trade-offs. Our goals were to explore patterns of CH and CL, quantify reprodu...
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این مطالعه به بررسی عوامل روانشناختی کریستوادردو رمان دوربس لسینگ،فرزندبنجم و بن دردنیای واقعی می بردازد.موفقیت یا شکست کاراکترهادر تکمیل شکست تتیزی یه کمک بدر وهم از مهم ترین دغدغه محقق می باشد.به بررسی تحلیل روانشناختی تمامی کاراکترها خصوصا بن برداخته و به دنبال نشانه هایی از جامعه شیشه ای کریستوا می باشد.
15 صفحه اولViola kauaensis var. hosakae (Violaceae), a new variety of endemic Hawaiian violet
The Hawaiian endemic Viola kauaensis A. Gray has a broad distribution in bogs of Kaua`i and a limited distribution on mesic ridges in the Ko`olau Mountains of O`ahu. Based on differences in scale, the O`ahu populations of Viola kauaensis had previously been described as a distinct taxon. The taxonomic status of the O`ahu populations was reevaluated through a morphometric analysis of all varieti...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 2009
ISSN: 0002-9122
DOI: 10.3732/ajb.0900048