Rare flower plant ramming phenology observation and cultivation techniques


Kolkwitzia amabilis Graebn is a unique Chinese honeysuckle plant discovered and named by the German botanist Richard Kolkwitz in 1901. It is listed as a rare and important protection plant in China. It is a deciduous shrub with compact plants, dense trunks, tightly packed inflorescences, and colorful flowers. It blooms brightly. It has attracted much attention from the garden community as a kind of flower with high ornamental value. The wolfberry is suitable for growing on slightly acidic cinnamon soil and embankment with a pH of 5.0-6.0. In early April, the temperature was low, the pods grew slowly, and the flower length changed little; in mid-April, the temperature was higher and the length of the buds grew faster; in the end of April, there was no significant cooling, and the flower growth was stable. In May, the temperature did not change very much, and the growth was fully integrated into the flowering period. The flower length did not change much. The cultivar of the apical buds begins to germinate and differentiate into young leaves from late February to early March of each year. From late March to early April, the leaves gradually develop and enter into reproductive periods. In mid-April, the primordium of the conical complex inflorescence formed on the top of the stem and the lateral short shoots, followed by bud emergence. In mid-April, the beginning of flowering, the two-flowered cymules are corymbose, and the total pedicels are 1.0-1.5 cm long. One is born in the middle of the other, and the lower part of the two flower's calyx tube often clings. . The flowering period is from late April to early May. The flowering periods of different plants are not synchronized and the flowering period can last about 20 days. Enter the late flowering period in early May or mid-May and enter the result period. July-August is the fruit ripening period. Two achene-like dried fruits are united, the outer ones are yellow thorns, and the apex has 5 teeth that are elongated and present. Deciduous leaves begin in early November and the late fall is in late November. Cultivation suggestions: (1) Irrigation and fertilization should be strengthened before the germination period in late February and before the flowering period in early April. (2) Compaction is not very strict with the temperature requirements, can be outside the winter, flowering period should be maintained at 10 ~ 22 °C, flowers bloom more vivid. (3) If the height of the plant must be controlled, remove the weak branches. (4) Gorgon seed development is not complete or there is no seed in the fruit, so sexual reproduction is limited. It is recommended to use cuttings for breeding. The cutting time should be chosen in the early spring of March and March, first disinfect the soil with potassium permanganate, select the shading environment to take a solid annual cuttings, soaking with a certain concentration of plant hormones (if the cuttings are soaked for a few seconds, soak for a few seconds In order to improve the rooting ability, a rooting agent of 700 mg/kg of naphthaleneacetic acid (NAA) and 500 mg/kg of indole acetic acid (IAA) can be used. After cutting, the water shall be poured out, the soil moisture content shall be higher than 50%, and the number of irrigations shall be appropriately reduced after half a month. 2 to 3 months after the rooting cuttings survived.

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