Canker of cut tulip flowers
It is mainly spread by bulbs, infecting new buds in the process of tulip germination, causing disease in the aboveground part. The suitable temperature for infection was 10 ℃ ~ 15 ℃, which was consistent with the growth temperature of tulip in the early stage. The disease occurs more frequently during the period from bulb germination to the expansion of the first leaf, which can last until flowering. At the initial stage of the disease, the disease spot on the leaf was waterlogged or gray-white disease spot, and in severe cases, the epidermis was detached from the mesophyll, resulting in cracking to expose the mesophyll, and yellow disease spots were formed on the bulb.
Control methods: diseased plants were removed and destroyed in time, and agricultural streptomycin was sprinkled in the surrounding soil; disinfection before planting bulbs can effectively prevent and cure the disease.
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Production of cut tulip flowers and prevention of blind flowers
Tulip (TulipagesnerianaL.), also known as lotus and musk grass, is a perennial bulb ornamental flower of Liliaceae. It is one of the famous flower varieties in the world, known as "king of flowers" [1Jing 2jue 3]. In China, the production technology of box cut tulip flowers, the causes of blind flower formation and prevention techniques are still relatively backward, which restricts the development of tulip cut flower production. The flower base of Hebei Academy of Forestry Sciences has made great efforts to develop soilless cultivation of tulips.
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What about the degradation of tulip varieties?
Prevention and control methods: 1. When planting, use stem tip to culture virus-free seedlings, or select varieties with strong resistance to virus; 2. In time
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