The Effect of Colored Shade Nets on Nutrition and Growth of <i>Dieffenbachia amoena</i> "Starlight"

Article Type:
Research/Original Article (دارای رتبه معتبر)

In order to control the sunlight in the open air and greenhouses in Iran, shade nets are essential. Using shade nets can reduce the air temperature in the covered area. The selection of shade nets with the right color has been shown to have an important role in the growth of ornamental plants under similar conditions. In order to accomplish this objective, an experiment was conducted to examine the impact of shade netting in the shades of blue, white, and green (at a shade level of 50%) on the growth of Dieffenbachia amoena ornamental foliage plants. The basic design of the experiment consisted of randomized complete blocks. During the five-month economic growing period under greenhouse conditions, plant height, diameter, and chlorophyll index were measured every two weeks. At the end of growth, the leaf fresh and dry weight, stem fresh and dry weight, plant growth index, and leaf nutrients were measured. The results indicated that Dieffenbachia grown under blue shade nets had higher height, growth index, root dry weight, and iron than those grown under white and green shade nets. Since most Iranian greenhouses produce this ornamental plant under green shade nets, and consi-dering that these two colored shade nets have similar prices, it is recommended that Dieffenbachia be produced under blue shade nets.

Journal of Ornamental Plants, Volume:13 Issue: 4, Autumn 2023
227 to 240  
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