不同光照强度对微型盆栽月季扦插苗生长的影响

doi:10.19640/j.cnki.jtau.2026.03.003

Journal of Tianjin Agricultural University ›› 2026, Vol. 33 ›› Issue (3): 13-18.doi: 10.19640/j.cnki.jtau.2026.03.003

Effect of different light intensities on the growth of cuttings miniature potted rose

Ma Li^1,2a,2b, Cao Tingting^1,2a,2b, Liu Chun^2a,2b, Fan Youwei^2a,2b, Ren Zhiyu^{1,Corresponding Author}, Yuan Suxia^2a,2b

1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300392, China;
2. Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, a. National Key Laboratory of Vegetable Biological Breeding, b. Key Laboratory of Flower Biology and Germplasm Creation, Ministry of Agriculture and Rural Affairs（Northern China）, Beijing 100081, China

Received:2025-08-27 Online:2026-06-30 Published:2026-06-30

Abstract

Abstract: To investigate the effects of different light intensities on the growth of cutting seedling of miniature potted rose（Rosa chinensis var. minima）, this study used four cultivars ‘Juicy Terrazza', ‘Cinderella', ‘Apollo Jewel' and ‘Rose Terrazza Pisce' as experimental materials. Three shading treatments were set（L1:70% high light transmittance; L2:45.5% moderate light transmittance; L3:17.5% low light transmittance）. Growth parameters of underground（rooting number, root fresh weight, rooting percentage）and aboveground shoot（length, unfolded leaf number, stem diameter, fresh weight）of cutting seedling were measured, meanwhile combined with dynamic monitoring of light intensity and substrate temperature, to select optimal light conditions for cutting propagation. The results showed that（1）Shading treatments significantly affected the synergistic variation between light and substrate temperature. Under L1 treatment the average light intensity was the highest, and the morning substrate temperature was the lowest（14.05 ℃）, while the afternoon substrate temperature significantly raised and reached a peak of 22.61 ℃.（2）L1 treatment markedly promoted root development and rooting number（15.3 roots/plant）, root fresh weight（0.52 g/plant）, and rooting percentage（89.5%）increased by 36.6%, 67.7%, and 23.8%, respectively, compared to L3 treatment; the rooting number of cultivar ‘Cinderella' exhibited stronger dependence on high light transmittance（L1 treatment）;（3）Aboveground shoot growth was simultaneously optimized under L1 treatment with shoot length（average 12.4 cm）, unfolded leaves number（average 6.2 leaves）, fresh weight（average 2.8 g）, and stem diameter（average 2.3 mm）improved by 36.3%-75.0% improvement over L3 treatment. The new shoot growth of cultivar ‘Cinderella' exhibited stronger dependence on high light transmittance（L1 treatment）, while cultivar ‘Rose Terrazza Pisce' adapted well to moderate light transmittance（L2 treatment）. In conclusion, 70% light transmittance is the ideal light condition for cutting propagation of miniature potted rose, and it is suggested that shading strategy by adjusted based on cultivar characteristics in production.

Key words: shading treatment, miniature potted rose, cutting, root growth, shoot growth

CLC Number:

S685.12

Ma Li, Cao Tingting, Liu Chun, Fan Youwei, Ren Zhiyu, Yuan Suxia. Effect of different light intensities on the growth of cuttings miniature potted rose[J]. Journal of Tianjin Agricultural University, 2026, 33(3): 13-18.

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Effect of different light intensities on the growth of cuttings miniature potted rose

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