Results 201 to 210 of about 2,732 (232)
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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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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 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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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 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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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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STIGMA RECEPTIVITY AND POLLEN VIABILITY STUDIES IN HYBRID PEARLMILLET KM2
Madras Agricultural Journal, 1999The pollen viability of pearlmillet fertility restorer line (K560 D230) was tested during two consecutive summer seasons. The vishility of pollen was judged in terms of seed setting on the male sterile line (MS 5141A). The pollination with fresh pollen and stored upto 2 hours resulted in good seed setting.
ANANTHAKALAISELVI A +2 more
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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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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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[Study on pollen viability and stigma receptivity of 5 Iris plants].
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2009To increase the reproduction efficiency of Iris plants.Pollen viability, stigmatic receptivity, the color of anther and stigma of 5 Iris plants were observed during blooming.1. The highest pollen viability was in 4 hours after blooming; 2. The stigmatic receptivities of I. sichuanensis, I. leptophylla, I. lactea and I. goniocarpa were strong in 4 hours
Xiaofang, Yu +3 more
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