Trueness-to-type and agronomic characteristics of Coffea arabica trees micropropagated by the embryogenic cell suspension technique
Trueness-to-type and agronomic characteristics of trees of four coffee (C. arabica) F1 hybrid clones derived from embryogenic cell suspensions were compared with those of trees produced from in vitro microcuttings. Three types of variants were observed among the 644 trees derived from embryogenic suspensions. Total frequency of the variants was 2.1 percent for trees originating from embryogenic cell suspensions, whereas no variant was found among the trees produced from microcuttings. The variant known as "thick leaf" had thick leaves, many abnormally starry flowers and low yields of large fruit. The "dwarf" variant was characterized by slow growth and small fruit. The "dwarf peaberry" variant had abnormal seeds in a single cavity, in addition to the "thick leaf" and "dwarf" characteristics. Compared with normal trees, the variants differed in leaf density and number of chloroplasts per guard cell. The variants aside, there were no differences in the main agronomic characteristics between trees produced from embryogenic suspensions and those produced from microcuttings. For all four clones, the trees had vegetative characteristics, productivity, fertility, and bean biochemical, mineral and organoleptic characteristics that were identical to those of the controls. We conclude that it is possible to generate coffee trees commercially with normal agronomic performance from embryogenic suspensions, because the frequency with which somaclonal variants occur is limited.
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2001
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| Subjects: | COFFEA, COFFEA ARABICA, CULTIVO DE CELULAS, CULTIVO DE CELULAS EN SUSPENSION, CLOROPLASTO, CLONES, ESQUEJES, FERTILIDAD, HIBRIDOS, CULTIVO IN VITRO, MICROPROPAGACION, PROPIEDADES ORGANOLEPTICAS, EMBRIONES VEGETALES, PRODUCTIVIDAD, VARIACION SOMACLONAL, CULTIVO DE TEJIDOS, |
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KOHA-OAI-BVE:892132021-11-16T15:36:06ZTrueness-to-type and agronomic characteristics of Coffea arabica trees micropropagated by the embryogenic cell suspension technique Etienne, Hervé 66009 48644 Bertrand, B. 2001Trueness-to-type and agronomic characteristics of trees of four coffee (C. arabica) F1 hybrid clones derived from embryogenic cell suspensions were compared with those of trees produced from in vitro microcuttings. Three types of variants were observed among the 644 trees derived from embryogenic suspensions. Total frequency of the variants was 2.1 percent for trees originating from embryogenic cell suspensions, whereas no variant was found among the trees produced from microcuttings. The variant known as "thick leaf" had thick leaves, many abnormally starry flowers and low yields of large fruit. The "dwarf" variant was characterized by slow growth and small fruit. The "dwarf peaberry" variant had abnormal seeds in a single cavity, in addition to the "thick leaf" and "dwarf" characteristics. Compared with normal trees, the variants differed in leaf density and number of chloroplasts per guard cell. The variants aside, there were no differences in the main agronomic characteristics between trees produced from embryogenic suspensions and those produced from microcuttings. For all four clones, the trees had vegetative characteristics, productivity, fertility, and bean biochemical, mineral and organoleptic characteristics that were identical to those of the controls. We conclude that it is possible to generate coffee trees commercially with normal agronomic performance from embryogenic suspensions, because the frequency with which somaclonal variants occur is limited.Trueness-to-type and agronomic characteristics of trees of four coffee (C. arabica) F1 hybrid clones derived from embryogenic cell suspensions were compared with those of trees produced from in vitro microcuttings. Three types of variants were observed among the 644 trees derived from embryogenic suspensions. Total frequency of the variants was 2.1 percent for trees originating from embryogenic cell suspensions, whereas no variant was found among the trees produced from microcuttings. The variant known as "thick leaf" had thick leaves, many abnormally starry flowers and low yields of large fruit. The "dwarf" variant was characterized by slow growth and small fruit. The "dwarf peaberry" variant had abnormal seeds in a single cavity, in addition to the "thick leaf" and "dwarf" characteristics. Compared with normal trees, the variants differed in leaf density and number of chloroplasts per guard cell. The variants aside, there were no differences in the main agronomic characteristics between trees produced from embryogenic suspensions and those produced from microcuttings. For all four clones, the trees had vegetative characteristics, productivity, fertility, and bean biochemical, mineral and organoleptic characteristics that were identical to those of the controls. We conclude that it is possible to generate coffee trees commercially with normal agronomic performance from embryogenic suspensions, because the frequency with which somaclonal variants occur is limited.COFFEACOFFEA ARABICACULTIVO DE CELULASCULTIVO DE CELULAS EN SUSPENSIONCLOROPLASTOCLONESESQUEJESFERTILIDADHIBRIDOSCULTIVO IN VITROMICROPROPAGACIONPROPIEDADES ORGANOLEPTICASEMBRIONES VEGETALESPRODUCTIVIDADVARIACION SOMACLONALCULTIVO DE TEJIDOSTree Physiology (Canadá) |
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COFFEA COFFEA ARABICA CULTIVO DE CELULAS CULTIVO DE CELULAS EN SUSPENSION CLOROPLASTO CLONES ESQUEJES FERTILIDAD HIBRIDOS CULTIVO IN VITRO MICROPROPAGACION PROPIEDADES ORGANOLEPTICAS EMBRIONES VEGETALES PRODUCTIVIDAD VARIACION SOMACLONAL CULTIVO DE TEJIDOS COFFEA COFFEA ARABICA CULTIVO DE CELULAS CULTIVO DE CELULAS EN SUSPENSION CLOROPLASTO CLONES ESQUEJES FERTILIDAD HIBRIDOS CULTIVO IN VITRO MICROPROPAGACION PROPIEDADES ORGANOLEPTICAS EMBRIONES VEGETALES PRODUCTIVIDAD VARIACION SOMACLONAL CULTIVO DE TEJIDOS |
| spellingShingle |
COFFEA COFFEA ARABICA CULTIVO DE CELULAS CULTIVO DE CELULAS EN SUSPENSION CLOROPLASTO CLONES ESQUEJES FERTILIDAD HIBRIDOS CULTIVO IN VITRO MICROPROPAGACION PROPIEDADES ORGANOLEPTICAS EMBRIONES VEGETALES PRODUCTIVIDAD VARIACION SOMACLONAL CULTIVO DE TEJIDOS COFFEA COFFEA ARABICA CULTIVO DE CELULAS CULTIVO DE CELULAS EN SUSPENSION CLOROPLASTO CLONES ESQUEJES FERTILIDAD HIBRIDOS CULTIVO IN VITRO MICROPROPAGACION PROPIEDADES ORGANOLEPTICAS EMBRIONES VEGETALES PRODUCTIVIDAD VARIACION SOMACLONAL CULTIVO DE TEJIDOS Etienne, Hervé 66009 48644 Bertrand, B. Trueness-to-type and agronomic characteristics of Coffea arabica trees micropropagated by the embryogenic cell suspension technique |
| description |
Trueness-to-type and agronomic characteristics of trees of four coffee (C. arabica) F1 hybrid clones derived from embryogenic cell suspensions were compared with those of trees produced from in vitro microcuttings. Three types of variants were observed among the 644 trees derived from embryogenic suspensions. Total frequency of the variants was 2.1 percent for trees originating from embryogenic cell suspensions, whereas no variant was found among the trees produced from microcuttings. The variant known as "thick leaf" had thick leaves, many abnormally starry flowers and low yields of large fruit. The "dwarf" variant was characterized by slow growth and small fruit. The "dwarf peaberry" variant had abnormal seeds in a single cavity, in addition to the "thick leaf" and "dwarf" characteristics. Compared with normal trees, the variants differed in leaf density and number of chloroplasts per guard cell. The variants aside, there were no differences in the main agronomic characteristics between trees produced from embryogenic suspensions and those produced from microcuttings. For all four clones, the trees had vegetative characteristics, productivity, fertility, and bean biochemical, mineral and organoleptic characteristics that were identical to those of the controls. We conclude that it is possible to generate coffee trees commercially with normal agronomic performance from embryogenic suspensions, because the frequency with which somaclonal variants occur is limited. |
| format |
|
| topic_facet |
COFFEA COFFEA ARABICA CULTIVO DE CELULAS CULTIVO DE CELULAS EN SUSPENSION CLOROPLASTO CLONES ESQUEJES FERTILIDAD HIBRIDOS CULTIVO IN VITRO MICROPROPAGACION PROPIEDADES ORGANOLEPTICAS EMBRIONES VEGETALES PRODUCTIVIDAD VARIACION SOMACLONAL CULTIVO DE TEJIDOS |
| author |
Etienne, Hervé 66009 48644 Bertrand, B. |
| author_facet |
Etienne, Hervé 66009 48644 Bertrand, B. |
| author_sort |
Etienne, Hervé 66009 |
| title |
Trueness-to-type and agronomic characteristics of Coffea arabica trees micropropagated by the embryogenic cell suspension technique |
| title_short |
Trueness-to-type and agronomic characteristics of Coffea arabica trees micropropagated by the embryogenic cell suspension technique |
| title_full |
Trueness-to-type and agronomic characteristics of Coffea arabica trees micropropagated by the embryogenic cell suspension technique |
| title_fullStr |
Trueness-to-type and agronomic characteristics of Coffea arabica trees micropropagated by the embryogenic cell suspension technique |
| title_full_unstemmed |
Trueness-to-type and agronomic characteristics of Coffea arabica trees micropropagated by the embryogenic cell suspension technique |
| title_sort |
trueness-to-type and agronomic characteristics of coffea arabica trees micropropagated by the embryogenic cell suspension technique |
| publishDate |
2001 |
| work_keys_str_mv |
AT etienneherve66009 truenesstotypeandagronomiccharacteristicsofcoffeaarabicatreesmicropropagatedbytheembryogeniccellsuspensiontechnique AT 48644bertrandb truenesstotypeandagronomiccharacteristicsofcoffeaarabicatreesmicropropagatedbytheembryogeniccellsuspensiontechnique |
| _version_ |
1756059924557725696 |