The Experts below are selected from a list of 7977 Experts worldwide ranked by ideXlab platform
Víctor M. Jiménez - One of the best experts on this subject based on the ideXlab platform.
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In vitro propagation of bamboo species through axillary shoot proliferation: a review
Plant Cell Tissue and Organ Culture (PCTOC), 2017Co-Authors: Manpreet Sandhu, Shabir H. Wani, Víctor M. JiménezAbstract:Bamboos, very relevant plants in many countries around the world, are propagated at large scale with extreme difficulties. Use of seeds is challenging because of plant’s sporadic flowering and long flowering cycles, together with seed recalcitrance and consumption by wild animals. Vegetative propagation of bamboo is mainly conducted by cuttings and by Air Layering. However, these methods are only useful at small-scale because they damage the mother plants, propagation material is bulky and difficult to be transported and is only available during few months of the year. Therefore, in vitro propagation offers the opportunity to obtain large progenies from elite genotypes. In most cases, when developing protocols for in vitro propagation of plants, specific conditions for individual species, genotypes and even development stages of the donor plants must be identified by trial-and-error experiments. Because of the size of and the large diversity observed in this plant family, it usually takes several months to define most adequate culture medium, combination of plant growth regulators and of other compounds for fostering the desired development in the explants. Therefore, in this detailed review, that also puts together results from hard-to-find literature, we list all identified cases, in which development of axillary shoots was used to propagate bamboo plants, by presenting successful ways for disinfection, in vitro bud sprouting, multiplication, rooting and acclimatization.
Manpreet Sandhu - One of the best experts on this subject based on the ideXlab platform.
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In vitro propagation of bamboo species through axillary shoot proliferation: a review
Plant Cell Tissue and Organ Culture (PCTOC), 2017Co-Authors: Manpreet Sandhu, Shabir H. Wani, Víctor M. JiménezAbstract:Bamboos, very relevant plants in many countries around the world, are propagated at large scale with extreme difficulties. Use of seeds is challenging because of plant’s sporadic flowering and long flowering cycles, together with seed recalcitrance and consumption by wild animals. Vegetative propagation of bamboo is mainly conducted by cuttings and by Air Layering. However, these methods are only useful at small-scale because they damage the mother plants, propagation material is bulky and difficult to be transported and is only available during few months of the year. Therefore, in vitro propagation offers the opportunity to obtain large progenies from elite genotypes. In most cases, when developing protocols for in vitro propagation of plants, specific conditions for individual species, genotypes and even development stages of the donor plants must be identified by trial-and-error experiments. Because of the size of and the large diversity observed in this plant family, it usually takes several months to define most adequate culture medium, combination of plant growth regulators and of other compounds for fostering the desired development in the explants. Therefore, in this detailed review, that also puts together results from hard-to-find literature, we list all identified cases, in which development of axillary shoots was used to propagate bamboo plants, by presenting successful ways for disinfection, in vitro bud sprouting, multiplication, rooting and acclimatization.
Wagner Campos Otoni - One of the best experts on this subject based on the ideXlab platform.
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resgate vegetativo por alporquia de genotipos adultos de urucum bixa orellana l
Ciencia Florestal, 2010Co-Authors: Nilton Cesar Mantovani, Magali Ferrari Grando, Aloisio Xavier, Wagner Campos OtoniAbstract:This study aimed to evaluate the usefulness of an Air Layering technique for vegetative rescue of annatto ( Bixa orellana L.) genotypes and obtainment of propagules for vegetative propagation. Ten 12 year-old annatto stock plants, whose genotypes are derived from artificial crossing between “HAiry-green capsule” X “Smooth-red capsule” were used in this study. Air Layering adventitious roots were induced in branches (1-2 cm diameter) using as substrate a mixture of vermiculite and moss. The effects of (1) the type of girdling (total or partial), 1 cm in length, (2) IBA (indole-3-butyric acid at 0 and 4.92 mM) solution in paper filter and (3) the covering with either transparent or dark plastic films and tencel were evaluated. The technique of Air Layering provided rooted branches for the 10 genotypes evaluated, with efficiency ranging from 20 to 100%, and a genotype effect was observed on rooting frequency. Under greenhouse conditions, the survival of layers derived from totally girdled stems treated with IBA and protected with transparent plastic was 100%. Established layers provided vigorous branching from which shoot apexes or nodal segment explants were obtained for in vitro establishment and propagation of this species.
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resgate vegetativo por alporquia de genotipos adultos de urucum bixa orellana l vegetative rescue of adult genotypes of annatto bixa orellana l by Air Layering
2010Co-Authors: Nilton Cesar Mantovani, Magali Ferrari Grando, Aloisio Xavier, Wagner Campos OtoniAbstract:This study aimed to evaluate the usefulness of an Air Layering technique for vegetative rescue of annatto (Bixa orellana L.) genotypes and obtainment of propagules for vegetative propagation. Ten 12 year-old annatto stock plants, whose genotypes are derived from artificial crossing between “HAiry-green capsule” X “Smooth-red capsule” were used in this study. Air Layering adventitious roots were induced in branches (1-2 cm diameter) using as substrate a mixture of vermiculite and moss. The effects of (1) the type of girdling (total or partial), 1 cm in length, (2) IBA (indole-3-butyric acid at 0 and 4.92 mM) solution in paper filter and (3) the covering with either transparent or dark plastic films and tencel were evaluated. The technique of Air Layering provided rooted branches for the 10 genotypes evaluated, with efficiency ranging from 20 to 100%, and a genotype effect was observed on rooting frequency. Under greenhouse conditions, the survival of layers derived from totally girdled stems treated with IBA and protected with transparent plastic was
Ronald Bellefontaine - One of the best experts on this subject based on the ideXlab platform.
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Multiplication végétative par bouturage et marcottage aérien de trois espèces agroforestières au Burkina Faso
Éditions en environnement VertigO, 2018Co-Authors: Wendpouire arnaud Zida, Babou andre Bationo, Antoine namwinyoh Some, Ronald BellefontaineAbstract:The insufficient knowledge on the regeneration of wild fruit trees is a major constraint to the domestication of these in the Sahelian countries subjected to a long dry season. Stem cuttings, root cuttings and Air Layering trials were carried out on Balanites aegyptiaca, Sclerocarya birrea and Diospyros mespiliformis specie. The results show, after 4 months of trials, that the root cutting test of S. birrea gives rooting rates of 12 % for cuttings planted vertically and 8 % rooting rates for cuttings planted horizontally in soil substrate. However, differences observed between treatments are not significant (P <0.05). Air Layering test was given a positive result for all three species, mainly for B. aegyptiaca with 65 % and 72 % success rate respectively for plant marcotted at the medial and basal level of the stem. The differences observed between treatments are significant (P <0.05). The success rates on S. birrea are 48 % and 45 % respectively for plant marcotted at the medial and basal level of the stem. However, no significant differences were observed between the two treatment (P <0.05). D. mespiliformis recorded success rates of 28 % for plant marcotted at the basal level and 12 % success rate for the plant marcotted at the medial level of stem. The differences in rooting between treatments are highly significant (P <0.001) for this species. The rooted layers planted at the research station present a survival rate of 52.5 % for B. aegyptiaca and 92 % for S. birrea after 2 years monitoring
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Growth and rooting of Solanecio mannii : comparison of seedlings and Air layers on a 24-month trial in East Africa
Journal of Agriculture and Environment for International Development, 2016Co-Authors: Quentin Meunier, Amélie Morin, Ronald BellefontaineAbstract:Vegetative propagation of trees remains understudied in Africa. Such methods however provide potential for producing trees and shrubs with high social and economic value. Air Layering is one of these techniques and can be used in Uganda for the domestication of underutilized multipurpose trees. The main purposes of this trial were to compare the growth rates of 30 Solanecio mannii plants grown from seed and 30 plants grown from Air Layering, and to observe the main morphological differences that affected the growth and root system of those 60 plants. This 24-month preliminary and prospective trial was conducted to compare the growth characteristics of seedlings and Air layers, by measuring their height, diameter, precocity to flower and fruit, and their root system quality. Air layers were stronger, quickly reaching maturity but showing weakness in their root systems, while seedlings seemingly smaller and slower showed more stability with a well-structured root system. Air Layering could be used to reproduce desirable genotypes. Due to their unbalanced root system observed in the field after two years, the Air layers, once transplanted into a nursery, should be propagated by cuttings or grafting only.
Shabir H. Wani - One of the best experts on this subject based on the ideXlab platform.
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In vitro propagation of bamboo species through axillary shoot proliferation: a review
Plant Cell Tissue and Organ Culture (PCTOC), 2017Co-Authors: Manpreet Sandhu, Shabir H. Wani, Víctor M. JiménezAbstract:Bamboos, very relevant plants in many countries around the world, are propagated at large scale with extreme difficulties. Use of seeds is challenging because of plant’s sporadic flowering and long flowering cycles, together with seed recalcitrance and consumption by wild animals. Vegetative propagation of bamboo is mainly conducted by cuttings and by Air Layering. However, these methods are only useful at small-scale because they damage the mother plants, propagation material is bulky and difficult to be transported and is only available during few months of the year. Therefore, in vitro propagation offers the opportunity to obtain large progenies from elite genotypes. In most cases, when developing protocols for in vitro propagation of plants, specific conditions for individual species, genotypes and even development stages of the donor plants must be identified by trial-and-error experiments. Because of the size of and the large diversity observed in this plant family, it usually takes several months to define most adequate culture medium, combination of plant growth regulators and of other compounds for fostering the desired development in the explants. Therefore, in this detailed review, that also puts together results from hard-to-find literature, we list all identified cases, in which development of axillary shoots was used to propagate bamboo plants, by presenting successful ways for disinfection, in vitro bud sprouting, multiplication, rooting and acclimatization.
