Results 261 to 270 of about 50,872 (289)
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2003
The present long-term tissue culture programme aims at directing double haploid (DH) production of triticale towards responsive genotypes and at the same time allowing the practical use of anther culture in current breeding programmes. It is hoped that this can be achieved without limiting plant breeders to a few selected crosses.
S. Tuvesson, R. von Post, A. Ljungberg
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The present long-term tissue culture programme aims at directing double haploid (DH) production of triticale towards responsive genotypes and at the same time allowing the practical use of anther culture in current breeding programmes. It is hoped that this can be achieved without limiting plant breeders to a few selected crosses.
S. Tuvesson, R. von Post, A. Ljungberg
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2003
The following procedure for large-scale production of doubled haploids (DH) in wheat at Svalof Weibull AB (SW) is based on protocols developed in Sven Bode Andersen’s laboratory in Copenhagen (Andersen et al., 1987; Tuvesson et al.,1989). Since then the tissue culture programmes were rationalised to a few steps in order to speed up DH production and ...
S. Tuvesson, R. von Post, A. Ljungberg
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The following procedure for large-scale production of doubled haploids (DH) in wheat at Svalof Weibull AB (SW) is based on protocols developed in Sven Bode Andersen’s laboratory in Copenhagen (Andersen et al., 1987; Tuvesson et al.,1989). Since then the tissue culture programmes were rationalised to a few steps in order to speed up DH production and ...
S. Tuvesson, R. von Post, A. Ljungberg
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Nordic Journal of Botany, 1984
Observations of living flower–heads of Tussilago farfara with ultraviolet light have confirmed the previously known distinction between the UV absorbing disc–flowers and the UV reflecting ray–flowers.
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Observations of living flower–heads of Tussilago farfara with ultraviolet light have confirmed the previously known distinction between the UV absorbing disc–flowers and the UV reflecting ray–flowers.
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2003
The production of doubled haploid (DH) barley (Hordeum vulgare L.) plants has proven to be a highly valuable tool for plant breeding, allowing the release of a high number of new cultivars (Devaux et al., 1996). Doubled haploids have also been fundamental for genetic analysis, linkage maps production and QTL analysis in barley.
L. Cistué +4 more
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The production of doubled haploid (DH) barley (Hordeum vulgare L.) plants has proven to be a highly valuable tool for plant breeding, allowing the release of a high number of new cultivars (Devaux et al., 1996). Doubled haploids have also been fundamental for genetic analysis, linkage maps production and QTL analysis in barley.
L. Cistué +4 more
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The Anther: Form, Function and Phylogeny
Kew Bulletin, 1996Preface 1. About anthers and stamens and what they do 2. The fossil history of stamens 3. The origin and early evolution of angiosperm stamens 4. Diversity and evolutionary trends in angiosperm anthers 5. Are stamens and carpels homologous? 6. Temporal control points in anther differentiation: implications for anther evolution 7.
William C. Dickison +2 more
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Anther development inXylopia nigricans
Proceedings / Indian Academy of Sciences, 1988In the anther primordium ofXylopia nigricans, the archesporium differentiates discontinuously with intervening sterile tissue. Each archesporial cell divides periclinally and develops into a micro-sporangium with a single microspore mother cell. Thus the anther becomes multisporangiate. The tapetal cells are uninucleate.
K Periasamy, S Thangavel
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2003
The production of doubled haploids through androgenesis represents a modern tool for the improvement of cultivated species enabling plant breeders to produce homozygous lines in a few months. In barley and other cereals, the use of androgenesis has generated a number of cultivars currently available and cultivated in many countries.
C. Jacquard, G. Wojnarowiez, C. Clément
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The production of doubled haploids through androgenesis represents a modern tool for the improvement of cultivated species enabling plant breeders to produce homozygous lines in a few months. In barley and other cereals, the use of androgenesis has generated a number of cultivars currently available and cultivated in many countries.
C. Jacquard, G. Wojnarowiez, C. Clément
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1994
It is becoming increasingly evident that endogenous ethylene can have large and diverse effects on growth and development in a wide range of plant tissue culture systems [2]. Anther culture in which haploid plants are regenerated from immature microspores is important because it allows the rapid production of homozygous lines for breeding and genetic ...
N. L. Biddington, Helen T. Robinson
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It is becoming increasingly evident that endogenous ethylene can have large and diverse effects on growth and development in a wide range of plant tissue culture systems [2]. Anther culture in which haploid plants are regenerated from immature microspores is important because it allows the rapid production of homozygous lines for breeding and genetic ...
N. L. Biddington, Helen T. Robinson
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1994
The maize pollen grain represents the beginning of a short-lived gametophytic phase during which the two sperm are delivered to the embryo sac prior to fertilization. Although this stage of the life cycle normally consists of only a few cell divisions, under certain experimental conditions, gametophytes can be induced to undergo an altered development,
J. F. Petolino, A. D. Genovesi
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The maize pollen grain represents the beginning of a short-lived gametophytic phase during which the two sperm are delivered to the embryo sac prior to fertilization. Although this stage of the life cycle normally consists of only a few cell divisions, under certain experimental conditions, gametophytes can be induced to undergo an altered development,
J. F. Petolino, A. D. Genovesi
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