[ ETUDE DE LA VIABILITÉ DES GRAINS DE POLLEN DE ONZE VARIETES DE TOMATES (Solanum lycopersicum L.) CULTIVEES A KISANGANI (RD Congo) ]
Volume 40, Issue 1, December 2018, Pages 178–189
O. Lokonga1, D. Dhed’a2, L. Okungo3, and W. OLEKO4
1 Departement of Biotechnologics Sciences, Faculty of Sciences, B.P. 2012, University of Kisangani, RD Congo
2 Departement des sciences Biotechnologiques, Faculté des Sciences, B.P.2012, Université de Kisangani, RD Congo
3 Departement of Phytotechnic, Faculty of Agronomic Science, B.P. 1232, Faculty Institute of Agronomic Sciences of Yangambi, Kisangani, RD Congo
4 University of Kisangani, Faculty of Science, Department of biotechnological Sciences, RD Congo
Original language: French
Copyright © 2018 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
As regards the study of in vitro pollinic fertility, the best conditions for germination and elongation of the pollinic tube are obtained at 20 g/l sucrose, 0.62 g/l of boracic. On the whole, foreign varieties (Carotina, Marmande, Makis, Opal, Roma) have a weak indicator of viability as compared to local varieties. Fertility of different flowers analyzed according to their position on the plant, is generally decreasing from bottom to top. These results could explain some cases of failure of fertilization when crossing-over different varieties of tomatoes. The results also show the importance of choice of the flower used when sampling pollen grains.
Author Keywords: viability, pollen grains, varieties, tomatoes (Solanum lycopersicum L.).
Volume 40, Issue 1, December 2018, Pages 178–189
O. Lokonga1, D. Dhed’a2, L. Okungo3, and W. OLEKO4
1 Departement of Biotechnologics Sciences, Faculty of Sciences, B.P. 2012, University of Kisangani, RD Congo
2 Departement des sciences Biotechnologiques, Faculté des Sciences, B.P.2012, Université de Kisangani, RD Congo
3 Departement of Phytotechnic, Faculty of Agronomic Science, B.P. 1232, Faculty Institute of Agronomic Sciences of Yangambi, Kisangani, RD Congo
4 University of Kisangani, Faculty of Science, Department of biotechnological Sciences, RD Congo
Original language: French
Copyright © 2018 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
As regards the study of in vitro pollinic fertility, the best conditions for germination and elongation of the pollinic tube are obtained at 20 g/l sucrose, 0.62 g/l of boracic. On the whole, foreign varieties (Carotina, Marmande, Makis, Opal, Roma) have a weak indicator of viability as compared to local varieties. Fertility of different flowers analyzed according to their position on the plant, is generally decreasing from bottom to top. These results could explain some cases of failure of fertilization when crossing-over different varieties of tomatoes. The results also show the importance of choice of the flower used when sampling pollen grains.
Author Keywords: viability, pollen grains, varieties, tomatoes (Solanum lycopersicum L.).
Abstract: (french)
En ce qui concerne l'étude de la fertilité pollinique in vitro, les meilleures conditions pour la germination et l’élongation du tube pollinique sont réalisées à 20gr/l de saccharose, 0,62 gr/l d’acide borique. Dans l’ensemble, les variétés étrangères (Carotina, Marmande, Makis, Opal, Roma) ont un indicateur de viabilité faible par rapport aux variétés locales. Quant à la fertilité de différentes fleurs analysées suivant leur position sur la plante, elle est généralement décroissante de bas vers le haut. Ces résultats expliqueraient certains échecs de fertilisation lors de croisement entre différentes variétés de tomates et montrent l’importance de choix de la fleur servant pour le prélèvement des grains de pollen.
Author Keywords: viabilité, grains de pollen, variétés, tomates (Solanum lycopersicum L.).
How to Cite this Article
O. Lokonga, D. Dhed’a, L. Okungo, and W. OLEKO, “STUDY OF THE VIABILITY OF POLLEN GRAINS OF ELEVEN VARIETIES OF TOMATOES (Solanum lycopersicum L.) CULTIVATED IN KISANGANI (DR Congo),” International Journal of Innovation and Scientific Research, vol. 40, no. 1, pp. 178–189, December 2018.
