Dry and hot valley region cauliflower tissue culture seedling hardening method

Abstract

The invention discloses a dry and hot valley region cauliflower tissue culture seedling hardening method, and particularly relates to the technical field of tissue culture seedling hardening. The method comprises the following steps that a tissue culture seedling bottle is transferred from an incubator to an indoor shady and cool region, placed for 2 days, then transferred to a sunshine oblique irradiation region, and placed for 3 days; prepared matrixes are subpackaged into hole seedling trays; the tissue culture seedlings are taken out of the tissue culture seedling bottle, washed clean and soaked in a bactericide; single broccoli plants are correspondingly transplanted into the hole seedling trays, and irrigated with a rooting stimulating solution; a seedling tray is placed in a shading area, and the seedling tray is completely covered with a non-porous plastic cover with red and blue alternated on the first day; and the seedling tray is continuously covered with a red and blue plastic cover with a plurality of through holes from the second day to the seventh day, the cover is taken down after 7 days, alternate irrigating of water or fertilizer water is carried out during the period, and then the seedling tray is transplanted into a field. By means of the dry and hot valley region cauliflower tissue culture seedling hardening method, the seedling hardening survival rate of the cauliflower tissue culture seedlings in the dry and hot river valley region is greatly increased.

Description

technical field [0001] The invention relates to the technical field of cauliflower propagation, in particular to a method for cultivating cauliflower seedlings in dry-hot valley areas. Background technique [0002] Cauliflower is a variety of Brassica cabbage in the cruciferous family. It uses curds as edible organs. It is rich in nutrients, contains a lot of vitamins and glucosides, and has a crisp and tender taste, which is loved by consumers. It has become one of the most important vegetable crops in the world. The use of plant tissue culture can increase the reproductive coefficient of most highly self-incompatible lines of cauliflower and improve the breeding efficiency. [0003] The hot and dry valley area has a hot and dry climate, with an average annual rainfall of 657.5 mm, an annual average temperature of 21.4 °C, an extreme maximum temperature of 42 °C, an annual average relative humidity of 53%, and about 7 months of dry season with less than 50 mm of precipitat...

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Problems solved by technology

[0003] The hot and dry valley area has a hot and dry climate, with an average annual rainfall of 657.5 mm, an annual average temperature of 21.4°C, an extreme maximum temperature of 42°C, an annual average relative humidity of 53%, and about 7 months of dry season with less than 50 mm of precipitation; cauliflower tissue culture seedlings In the process of seedling hardening, it is very easy to cause seedling diseases due to high temperature. At the same time, in a dry and low-humidity environment, it is easy to cause leaf wilting. The survival rate of hardened seedlings is extremely low

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