EFFECT OF LIGHT ENVIRONMENT ON RUNNER PLANT PROPAGATION OF STRAWBERRY
In strawberry (Fragaria × ananassa Duch.) production, the availability of high quality plants is one of the most important factors in obtaining good yields. Starting production with healthy and plentiful plants gives the grower a greater chance of high productivity. Recently, the high efficient, low cost and long life artificial light applied in horticultural crop production was a widespread technology, especially in controlled environment agriculture. The runner plant propagation of strawberry in Taiwan usually was limited to certain district and season. Using facility cultivation for strawberry propagation and production may be a feasible strategy. In order to evaluate the suitable light environment to propagate strawberry runner plants, Toyonoka strawberry plants were planted in a controlled environment growth chamber using T5 light or LED as light source for 6-8 weeks. The result showed cool white light (6500 and 5000 K) combined with high light intensity (6 lamps) not only enhanced plant growth, but also promoted runner formation and ramet growth. The treatment of 70% red light+30% blue light (R+B) had the highest SPAD value, dry weight, crown diameter, carbohydrate and starch content and produced the most runners. But the treatment of 70% red light+20% blue light+10% green light (R+B+G) generated the most ramets in a runner chain. Using LED as light source for runner production was better than those of using T5 light.
Wu, C.C., Hsu, S.T., Chang, M.Y. and Fang, W. (2011). EFFECT OF LIGHT ENVIRONMENT ON RUNNER PLANT PROPAGATION OF STRAWBERRY. Acta Hortic. 907, 297-302
artificial light, colour temperature, controlled environment agriculture, fruit, stolon