Precise seedling growing method for alpine rhododendrons

Abstract

The invention discloses a precise seedling growing method for alpine rhododendrons, which comprises three steps: namely, germinating and cultivating seminal radicle, elaborately planting the seeds, and controlling the environment after planting the seeds. The seeds of alpine rhododendrons are scattered in a culture dish laid with qualitative filter paper, the culture temperature is 23 DEG C to 27 DEG C, the illumination intensity is 30 mu mol. m<-2>.s<-1>, and the illumination time is 12 h. d<-1>; when the hypocotyls of the radicle extend and the embryos have not grown, the radicle is transplanted and planted, and the matrix water content in a transplanting plug is 60%-70%; and the environmental control is as follows: the light transmittance of a sunshade net is 50%, the air humidity is maintained at 80%-83% 10 to 12 days after the radicle is transplanted and is reduced to 75%-78% after the cotyledons are unfolded, leaf fertilizers begin to be sprayed when three to four euphyllas grow, and when the matrix water content is lowered to 30%-40%, water is sprayed until the matrix water content reaches 100%. With adoption of the method, the cultivated time of the seedlings is only 60-65 days, the seedlings grow in a tidy, healthy and strong manner, and the planting percent is as high as 85%-90%.

Description

technical field [0001] The invention relates to the technical field of plant seedling raising, in particular to the alpine rhododendron seedling raising technology. Background technique [0002] Alpine Rhododendron is a world famous ornamental flower. 70% of the original species of Rhododendron alpine grow in my country's Yunnan, Sichuan and Hengduan Mountains in Tibet. European and American countries have used China, especially the original species of alpine rhododendron in Yunnan to cultivate many horticultural cultivars. In recent years, Alpine Rhododendron has become the "new favorite" of Chinese New Year's Festival flowers and landscaping plants with its bright colors, graceful flower posture and beautiful plant shape, and its market demand is increasing day by day. At present, the alpine Rhododendron species and their quantities sold on the market in my country are still in an embarrassing situation of relying on foreign imports to a large extent. To change this pas...

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Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome the easy loss of seeds, uneven growth of seedlings, and the effect of raising seedlings depends on the seedling raising experience of the seedling grower to a large extent, and the randomness of operation is large, so that The disadvantages and deficiencies of unstable seedling growth rate and low transplanting survival rate, the purpose is to provide a precise seedling method for Alpine Rhododendron with neat growth, high seedling growth rate, easy transplanting, and high repeatability of operation

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