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Pollen viability and stigma receptivity of Salvia miltiorrhiza and its relative
China Journal of Chinese Matera Medica, 2010To provide the basal data for artificial cross breeding of Chinese herb Salvia miltiorrhiza from 7 provinces in China and its 4 relatives.The pollen viability was evaluated by TTC (2, 3, 5-triphenylte trazolium chloride) test and the stigma receptivity was evaluated by benzidine-H2O2 method.The pollen viability of S.
Guocheng, Zhong +3 more
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The ovule ofGasteria verrucosaat receptivity of the stigma: an ultrastructural study
Acta Botanica Neerlandica, 1990SUMMARY An ultrastructural study on the embryo sac and the micropylar part of the nucellus, at the time of stigma receptivity, was carried out to reveal possible changes due to pollination. At the time of stigma receptivity, the development of the egg cell, central cell, antipodals and the micropylar nucellar cells of Gasteria have been completed ...
Franssen-Verheijen, M.A.W. +1 more
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Stigma receptivity in cytoplasmic male sterile wheat
Australian Journal of Experimental Agriculture and Animal Husbandry, 1966The effects of temperature and relative humidity on stigma receptivity in a cytoplasmic male sterile wheat line were estimated by measuring per cent seed set on plants raised in controlled environments in the phytotron at Canberra. Three levels of temperature (26¦C day : 21¦C night, 18¦C : 13¦C, 10¦C : 5¦C) and two levels of humidity (75-90 per cent ...
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Stigma development and receptivity of two Kalanchoë blossfeldiana cultivars
Acta Physiologiae Plantarum, 2014Several members of the Kalanchoe genus are popular as ornamental plants. Cross-breeding and wide hybridisation are essential to continuously introduce novel traits into cultivated plant material. This study aimed to identify the major factors related to the stigma affecting cross-pollination in the Kalanchoe blossfeldiana.
Traoré, Leila Thérèse +3 more
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Pollen characteristics and stigma receptivity for Anemone coronaria L.
Euphytica, 2018To obtain crossing products, an efficient pollination and subsequent fertilization is essential. This efficient pollination is achieved by pollen germination and tube growth. Here, these pollen characteristics of 2 genetically differentiating cultivars of Anemone coronaria L. were investigated in vitro.
Emmy Dhooghe +3 more
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Stigma receptivity and style performance in several apricot cultivars
Journal of Horticultural Science, 1991SummaryA study of the development of the receptivity of stigma and style in the climatic conditions of south-east Spain on several varieties of apricot, revealed that the stigma cannot usually be considered mature at the balloon stage but reaches its optimum condition between two and four days later, decreasing rapidly thereafter.
J. Egea +3 more
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Onset and duration of stigma receptivity in Kunzea pomifera (Myrtaceae)
Australian Journal of Botany, 2006The onset and duration of stigma receptivity in K. pomifera was evaluated by observing stigma peroxidase activity, pollen-tube growth and seed set, following controlled pollination of flowers of different ages. Peroxidase activity was negligible from 1 day before to 4 days after anthesis, increasing to a peak of 65% at Day 13. The percentage of pistils
Page, Tony +3 more
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The Onset and Duration of Stigma Receptivity in Sugar Maple Flowers
Forest Science, 1966Abstract In a study of stigma receptivity in Acer saccharum Marsh., conducted under greenhouse conditions, germination of pollen grains on stigmas was first observed about 22.5 hours after bud burst.
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Testing the accuracy of using peroxidase activity to indicate stigma receptivity
Canadian Journal of Botany, 1987Stigma peroxidase activity was tested in flowers of Pedicularis canadensis and Clintonia borealis at discrete age-classes during the course of anthesis. For recipient flowers of each age-class pollen adhesion, rate of pollen germination, and total number of grains germinating on stigmas were scored following hand-pollination. In P.
Candace Galen, R. C. Plowright
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Ethylene responsiveness in carnation styles is associated with stigma receptivity
Sexual Plant Reproduction, 2002Sensitivity to ethylene increases as flowers mature, and this is associated with autocatalytic ethylene production that initiates petal senescence. The coordination of the senescence process within the flower requires interorgan communication. To determine if differential ethylene responsiveness among floral organs is involved in regulating senescence ...
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