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Article
Open AccessFactors affecting quantity of pollen dispersal of spray cut chrysanthemum (Chrysanthemum morifolium)
Spray cut chrysanthemum is a vital flower with high ornamental value and popularity in the world. However, the excessive quantity of pollen dispersal of most spray cut chrysanthemum is an adverse factor during...
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Article
Open AccessFactors influencing fecundity in experimental crosses of water lotus (Nelumbo nucifera Gaertn.) cultivars
Breeding programs for the water lotus (Nelumbo nucifera) are hampered by an inability to account for variation in seed set associated with crosses between different cultivars. We studied seed set in two reciproca...
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Article
Overcoming pre-fertilization barriers in the wide cross between Chrysanthemum grandiflorum (Ramat.) Kitamura and C. nankingense (Nakai) Tzvel. by using special pollination techniques
In our earlier study, pre-fertilization barrier was one of the main factors causing the failure of the wide hybridization between Chrysanthemum grandiflorum ‘Yuhuaxingchen’ and C. nankingense, and seriously restr...
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Article
Interspecific hybrids between Chrysanthemum grandiflorum (Ramat.) Kitamura and C. indicum (L.) Des Moul. and their drought tolerance evaluation
Chrysanthemum grandiflorum ‘Yuhuaxingchen’ is an important commercial chrysanthemum cultivar with excellent ornamental quality but low drought tolerance, whereas C. indicum has exceptional drought tolerance. In o...
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Article
Factors affecting seed set in the crosses between Dendranthema grandiflorum (Ramat.) Kitamura and its wild species
Reproductive barriers often exist in the crosses between Dendranthema grandiflorum (Ramat.) Kitamura and its wild species and seriously result in low seed set, consequently reducing breeding efficiency. For the p...
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Article
Meiosis and pollen germinability in small-flowered anemone type chrysanthemum cultivars
Meiotic behavior in pollen mother cells and in vitro pollen germination were examined in a sample of small-flowered anemone type chrysanthemum cultivars. Bivalent formation predominated at metaphase I in all t...
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Article
Karyotype and meiotic analyses of six species in the subtribe Chrysantheminae
The karyotypes and meiotic behaviour of six Chrysantheminae species are investigated. Pyrethrum coccineum (Willd.) Worosch. is a tetraploid, while the other five species (Argyranthemum frutescens (L.) Sch.-Bip.,