Abstract:

The effects of different soilless media on the growth and development of miniature pot rose ( Rosa hybrida‘Miniature Pink’) have been carried out systematically in this paper. The results were indicated as follows : the three kinds of soilless media (100% peat moss , 70% peat moss + 30% perlite , and 70% perlite + 30 % peat moss) could significantly promote the plant height , the fresh mass and dry mass of branches and leaves , area of leaves , mean root length , the length of the longest root , the fresh mass and dry mass of roots , the days of intial buds , the flowering days , the diameter of flowers , and so on of the miniature pot rose ; the ideal of physical characteristics of the soillss meida for miniature pot rose were 0.12 - 0.19 g·cm^-3 content mass , 1.6 - 1.9 g·cm^-3 mass ratio , 6% -16 % content water (air dried) , and 90 % - 94 % total interspace.

Key words: Rosa, Soilless media, Miniature pot rose ( Rosa hybrida ‘Miniature Pink’), Growth and development, Physical characteristics