Tropical Plant Research
An International Journal by Society for Tropical Plant Research
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2021, VOLUME 8 ISSUE 2Pages: 155-158
Flowering of Guadua angustifolia Kunth in vegetative propagation stage - first report
Ellora Dutta Borah*, Rajib Kumar Kalita and R. S. C. Jayaraj
*Rain Forest Research Institute, Jorhat-785010, Assam, India
Abstract:
Guadua angustifolia Kunth (Bambusa guadua Humb & Bonpl) is a large sympodial bamboo, native to South America, often known as "Vegetable Steel" due to its extraordinary mechanical strength properties and durability. This species was first introduced in Rain Forest Research Institute (RFRI), Jorhat, Assam in the year 2010. Flowering in culm cuttings occurred when experiments were laid out for mass propagation of the species at RFRI through vegetative means. Culm cuttings were treated with different concentrations viz. 100 ppm, 200 ppm and 500 ppm of growth regulators namely Indole-3 Butyric Acid (IBA) and Naphthalene Acetic Acid (NAA). More than 60% rooting was achieved with the cuttings treated with 200 ppm IBA. Regarding unusual flowering of the cuttings, the authors opined that it might be due to the environmental stress condition in the field as the sprouted cuttings along with the new shoots in the nursery beds received day long sun light during sunny days and on the other hand due to prolong rainy season, the cuttings received excess water.
Guadua angustifolia Kunth (Bambusa guadua Humb & Bonpl) is a large sympodial bamboo, native to South America, often known as "Vegetable Steel" due to its extraordinary mechanical strength properties and durability. This species was first introduced in Rain Forest Research Institute (RFRI), Jorhat, Assam in the year 2010. Flowering in culm cuttings occurred when experiments were laid out for mass propagation of the species at RFRI through vegetative means. Culm cuttings were treated with different concentrations viz. 100 ppm, 200 ppm and 500 ppm of growth regulators namely Indole-3 Butyric Acid (IBA) and Naphthalene Acetic Acid (NAA). More than 60% rooting was achieved with the cuttings treated with 200 ppm IBA. Regarding unusual flowering of the cuttings, the authors opined that it might be due to the environmental stress condition in the field as the sprouted cuttings along with the new shoots in the nursery beds received day long sun light during sunny days and on the other hand due to prolong rainy season, the cuttings received excess water.
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