The nectar secretion of some cultivated and spontaneous plant species
Keywords:Phacelia tanacetifolia, Trifolium hybridum, nectar secretion
The work presents the results of our researches on the nectar secretion of the following species: Fagopyrum esculentum Mnch., Phacelia tanacetifolia Benth., Salvia verticillata L., Trifolium hybridum L. and Trifolium repens L., under the environmental conditions of the Cluj region. The obtained results show that the highest amount of nectar in one flower in 24 hours was produced by Phacelia tanacetifolia (0,173 mg) and Trifolium hybridum (0,164 mg). The amount of nectar produced by the other species was smaller (table 2).
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