Saturday, August 1, 2015

Evaluation of Cosmos bipinnatus Cav., Cosmos sulphureus Cav. and Rudbeckia hirta L. varieties for direct sowing on flower bedsEvaluation of Cosmos bipinnatus Cav., Cosmos sulphureus Cav. and Rudbeckia hirta L. varieties for direct sowing on flower bedsEvaluation of Cosmos bipinnatus Cav., Cosmos sulphureus Cav. and Rudbeckia hirta L. varieties for direct sowing on flower bedsEvaluation of Cosmos bipinnatus Cav., Cosmos sulphureus Cav. and Rudbeckia hirta L. varieties for direct sowing on flower beds

There were concentrated and evaluated 21 varieties of Rudbeckia hirta L., 12 varieties of Cosmos bipinnatus Cav. and 9 varieties of Cosmos sulphureus Cav. for the establishment of flower mixtures by direct sowing in the garden and landscape design. Very poor emergence rate of all varieties of Rudbeckia hirta L. in all repetitions confirmed the impossibility of their cultivation by direct sowing. All evaluated varieties of Cosmos bipinnatus Cav. demonstrated the possibility of direct sowing cultivation, but high varieties can not be recommended for direct sowing on beds due to uneven height, late beginning of flowering and susceptibility to lodging. All evaluated varieties of Cosmos sulphureus Cav. were characterized by good seed emergence rate, balanced and reliable flowering, solid and orderly growth, even in the case of higher varieties. All evaluated varieties can be recommended for cultivation.

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