Results 121 to 130 of about 3,218 (171)
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1997
Barley was one of the first crops to be cultivated by man (Zohary & Hopf, 1988), and today ranks as the fifth most productive crop in the world. Factors which have contributed to its successful cultivation include its tolerance to abiotic stresses; high and low temperatures, drought, mineral deficiencies and toxicities, and its relatively short life ...
B. P. Forster, W. Powell
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Barley was one of the first crops to be cultivated by man (Zohary & Hopf, 1988), and today ranks as the fifth most productive crop in the world. Factors which have contributed to its successful cultivation include its tolerance to abiotic stresses; high and low temperatures, drought, mineral deficiencies and toxicities, and its relatively short life ...
B. P. Forster, W. Powell
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Nature Biotechnology, 2010
An engineered centromere-specific histone could enable homozygous diploid lines to be generated at high frequency, simplifying crop breeding.
Gregory P Copenhaver, Daphne Preuss
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An engineered centromere-specific histone could enable homozygous diploid lines to be generated at high frequency, simplifying crop breeding.
Gregory P Copenhaver, Daphne Preuss
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1997
Both Lolium perenne and L. multiflorum are strong outbreeders that exhibit severe inbreeding depression (Bean & Yok-Hwa, 1972; Matzk, 1974) and possess a strict gametophytic self-incompatibility system which involves two major gene loci with modification by the genetic background (Lawrence et al., 1983).
Bode Andersen, S. +4 more
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Both Lolium perenne and L. multiflorum are strong outbreeders that exhibit severe inbreeding depression (Bean & Yok-Hwa, 1972; Matzk, 1974) and possess a strict gametophytic self-incompatibility system which involves two major gene loci with modification by the genetic background (Lawrence et al., 1983).
Bode Andersen, S. +4 more
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Haploidy as a Factor in the Polymorphic Differentiation of the Hymenoptera
Science, 1946Stanley E Flanders, S E Flanders
exaly +4 more sources
1996
Most temperate fruit trees are characterized by a long reproductive cycle with several years of a juvenile phase, a tendency to allogamy and a large tree size. They are generally highly heterozygous, outbreeding species, which are asexually propagated. For these reasons, their genetic improvement by conventional methods is time-consuming and limited by
Höfer, Monika, Lespinasse, Yves
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Most temperate fruit trees are characterized by a long reproductive cycle with several years of a juvenile phase, a tendency to allogamy and a large tree size. They are generally highly heterozygous, outbreeding species, which are asexually propagated. For these reasons, their genetic improvement by conventional methods is time-consuming and limited by
Höfer, Monika, Lespinasse, Yves
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1996
Plants having a single genome are known as haploids. Alternatively, haploid plants also are defined as those that have the gametic number of chromosomes. However, in the case of a polyploid species like alfalfa (Medicago sativa L.), a tetraploid with 2n = 4x = 32, haploid plants actually are true diploids with two homologous sets of chromosomes (2n ...
Daniel Z. Skinner, George H. Liang
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Plants having a single genome are known as haploids. Alternatively, haploid plants also are defined as those that have the gametic number of chromosomes. However, in the case of a polyploid species like alfalfa (Medicago sativa L.), a tetraploid with 2n = 4x = 32, haploid plants actually are true diploids with two homologous sets of chromosomes (2n ...
Daniel Z. Skinner, George H. Liang
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1997
Rye (Secale cereale L.) has its origin in southwest Asia. From there it was probably distributed to Russia, and later to western Europe. Only 2–3% of total cereal production falls to rye. Approximately 90% of rye production is concentrated in Europe. The distribution of rye is restricted to the area between the 50th and 60th degree of northern latitude.
Sabine Deimling, Tanja Flehinghaus-Roux
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Rye (Secale cereale L.) has its origin in southwest Asia. From there it was probably distributed to Russia, and later to western Europe. Only 2–3% of total cereal production falls to rye. Approximately 90% of rye production is concentrated in Europe. The distribution of rye is restricted to the area between the 50th and 60th degree of northern latitude.
Sabine Deimling, Tanja Flehinghaus-Roux
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1997
Haploid plantlets can be produced through various means (Clapham, 1977). However, haploid production using anther or microspore culture is amenable to many dicotyledonous and monocotyledonous crop species. The doubled haploid breeding scheme has advantages in accelerating and simplifying procedures for production of homozygous plants.
George H. Liang +4 more
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Haploid plantlets can be produced through various means (Clapham, 1977). However, haploid production using anther or microspore culture is amenable to many dicotyledonous and monocotyledonous crop species. The doubled haploid breeding scheme has advantages in accelerating and simplifying procedures for production of homozygous plants.
George H. Liang +4 more
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Haploidy in preattachment bovine embryos
Canadian Journal of Genetics and Cytology, 1985Four of twenty-four bovine embryos (day 5–7) subjected to chromosome analysis had haploid cells in metaphase. Two were clearly n/2n. The origin of the haploid cells was determined to be male in two embryos, owing to the presence of a Y chromosome or a male marker chromosome suggesting spermatozoa in division.Key words: embryo, bovine, chromosomes ...
W A, King, L, Picard
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