Results 191 to 200 of about 2,725 (226)

Elemental and biochemical markers of stigma receptivity in sunflower

Acta Physiologiae Plantarum, 2014
Stigma development in sunflower is accompanied with an accumulation of calcium (33 %), potassium (37 %) and boron (62 %) in mature stigma as compared to stigma at bud stage, thereby demonstrating their essential roles in attaining receptivity. Membrane-bound calcium accumulation is enhanced on the pellicle and is also evident in the cytoplasm ...
Basudha Sharma, S. C. Bhatla
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Stigma Receptivity and Seed Set in Protogynous Buffelgrass

Crop Science, 2000
Buffelgrass, Pennisetum ciliare (L.) Link syn = Cenchrus ciliaris L., is an important warm‐season perennial forage grass that is widely grown throughout the arid tropics. It has perfect florets, and emasculation is thought to be required to produce controlled hybrids. This is a tedious, difficult undertaking because of the small floret size.
Gail S. Shafer, Byron L. Burson, Mark A. Hussey   +2 more
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The ovule ofGasteria verrucosaat receptivity of the stigma: an ultrastructural study

Acta Botanica Neerlandica, 1990
SUMMARY 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., Willemse, M.T.M.   +1 more
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Pollen viability and stigma receptivity of Salvia miltiorrhiza and its relative

China Journal of Chinese Matera Medica, 2010
To 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, Li, Zhang, Ruiwu, Yang, Chunbang, Ding   +3 more
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THE PERIOD OF RECEPTIVITY OF RICE STIGMA

Madras Agricultural Journal, 1933
A knowledge of the natural pollination and fertilisation in cultivated crops is of extreme importance to the plant breeder in the matter of evolving successful techniques of artificial hybridisa- tion for crop improvement. In most of the crop plants, which are self fertilised, natural pollination occurs at the time of flower opening.
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Onset and duration of stigma receptivity in Kunzea pomifera (Myrtaceae)

Australian Journal of Botany, 2006
The 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, Moore, G M, Will, J, Halloran, G M   +3 more
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Pollen characteristics and stigma receptivity for Anemone coronaria L.

Euphytica, 2018
To 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, Dirk Reheul, Thea Versluys, Marie-Christine Van Labeke   +3 more
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Stigma receptivity in cytoplasmic male sterile wheat

Australian Journal of Experimental Agriculture and Animal Husbandry, 1966
The 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, 1991
SummaryA 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, L. Burgos, J. E. Garcia, L. Egea   +3 more
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Stigma development and receptivity of two Kalanchoë blossfeldiana cultivars

Acta Physiologiae Plantarum, 2014
Several 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, Kuligowska, Katarzyna, Lütken, Henrik Vlk, Müller, Renate   +3 more
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