Screening And Culture Conditions Of Ornamental Sweet-potato Cultivars Whichsuitable Forindoor Micro Environments

Themain factorsto affact plants growth are light which determines the scope of itsapplication,and configurationwhich affacts the configuration form under indoor microconditions,which light general is300-10000lux.Therefore, when we configuration plants indoor notonly to focus on the choice of varieties of plants whichcan resistant to low light, but also pay attentionto the conditions and growth of plants.In this paper, The test was to screen to the ornamental sweetpotato varieties of resistant low-light withcomponent score and spectrophotometer,and the bestnutrition liquid formulations which suitable to plants growth with orthogonal design,andtheconditions of light conditionby Duncan test. The study ofscreening and culture conditions ofornamental sweet-potato cultivars whichsuitable for indoor micro environmentsapplication,it will notonly expanded the range of ornamental sweetpotato applications,but also provide the theory basis andthe application foundation for the other indoor plants.It also promotes the development of the garden.This researchmain conelusions were as follows:(1)The six ornamental sweetpotato varieties had diferent tolerate to the low light and theirlow-light sensitivity coefficient and characteristics of photosynthetic in varying degrees.There werebig differences in the resilience stability. Margaret and Black Beauty werebetter varieties which canresistance to low-light,they can resilience to adversity in certain degree, but sweet caroline bronzehas poor growth in low light.we can screen the ornamental sweet potato varieties rapied and effectivewith low-light sensitivity coefficient.(2) The content of chlorophyll and the growth indicators were the highest of ornamentalsweetpotato by treating the circulating water of lettuce nutrient solution,keeping thepH value of6.5-7.0and the EC value of2.51-2.66,which the absorption of nutrients was better.The ornamentalsweetpotato can achieve the best viewing and the physiological indices performed better when theygrowed in1/2times the circulating water of lettuce nutrient solution,It can also bring life to the roomand the garden.(3)The rang of two hydroponics ornamental sweetpotato was diferent under indoor microconditions.And the light intensity which could meet margarita growth is more than1500lx,andsweet caroline purple needed more than3000lx.Most of hydroponics ornamental sweetpotato growth cankeep good growth when the light intensity is greater than3000lx,but it growth poor when the lightintensity is less than500lx.