关键词: 香雪兰, 基质配比, 营养生长, 开花性状, 球茎生长发育

Abstract: Preparing 11 compound substrates with 6 basic substrates,  this paper studied effect of compound substrates on vegetative and reproduction growth of Freesia hybrida ‘Shangnong Purple Rose’, so as to screen the suitable compound substrate for its cultivation. The results showed that 3 compound substrates “peat + coco peat + inorganic materials” (C7, C8, C9) combinations were good for the vegetative growth of freesia. They could also improve the growth of scapes height and blossoming of floret, and C7 treatment had the highest abloom rate. The compound substrates “peat + coco peat + inorganic materials” were not only suitable for matter accumulation during the process of bulb growth, but also could improve reproduction coefficient, especially C8 treatment had the best effect. Comparing group “garden soil + peat + river sand” with group “garden soil + coco peat + river sand”, the growth and flowering status were quite similar, in which coco peat and peat were in the same proportion. The too large proportion of common soil would inhibit the growth and development of freesia, and could not meet the needs of freesia growth. Taken together, the compound substrate with “peat + coco peat + inorganic materials” was the best for freesia growth and development. It could improve its vegetative growth, blossoming and bulb development. It was also feasible to replace peat with reproductive coco peat for freesia cultivation. This study had a positive significance for guiding production practice in the future.

Key words: Freesia hybrida, substrate composition, vegetative growth, flowering traits, bulb growth and development