Large-scale mappia pittosporoides seedling and cultivation method

Abstract

The invention provides a large-scale mappia pittosporoides direct seeding and seedling method. The method includes a series of steps such as nursery site requirements for mappia pittosporoides direct seeding and seedling, greenhouse erection and compartment division, seed pretreatment, seeding, management before germination, preliminary management after germination, seedling transplantation, field management after transplantation, etc. Seedlings obtained through the method achieve a low infection rate, high robustness, a high transplantation survival rate, as well as strong rootstocks; the operation is simple and convenient; the method is applicable for propagation technologies for mappia pittosporoides field seedling, and overcomes the limitations of the conventional seedling technologies.

Description

technical field [0001] The invention belongs to the technical field of modern Chinese herbal medicine cultivation, and relates to a large-scale seedling raising and cultivation method for directly cultivating seedlings of Mabi wood without pathogen infection by using Mabi wood seeds. Background technique [0002] Mabimu, also known as Gonghuangzhuzi and Chasing Wind Umbrella, belongs to the family Tea Cornaceae and is a perennial dwarf shrub. Branches angular, pubescent, later glabrous, buds pilose. The leaves are alternate or the upper parts of the branches are nearly opposite; the petiole is 1-3cm long, the upper surface is wide and deep, and the groove is strigose; the leaves are oblong or oblanceolate, 7-24cm long, 2-4.5cm wide, with apex Long acuminate, base cuneate, margin entire, upper part dark green, glossy; midrib concave, lateral veins 6-7 pairs, curved ascending, reticulated far away from leaf margin. Flowers bisexual or polygamous, cymes terminal, about 7cm lo...

AI Technical Summary

Problems solved by technology

Therefore, the extraction of wild mabi wood will cause resource depletion and unstable production of camptothecin

[0004] The current main propagation methods of mabi wood are rhizome bud propagation and seed propagation. Rhizome bud propagation is easily subject to quantitative restrictions, germplasm is easy to degrade, and it is easy to carry germs and pests.

Group breeding of seedlings tends to cause high cost and troublesome seedling transportation. At present, seedlings are mainly sown after germination in the greenhouse. Seed germination in the greenhouse requires the construction of a special germination room, which needs special supervision and constant turning. When the temperature and water management are not good, it is easy It will lead to burning seeds and bad buds. Because the new buds are brittle, they are easy to break when turning over. When sowing, due to the concern between buds and buds, it is not easy to sow evenly, and it will cause mechanical damage, broken buds and bad buds, and infection of germs.

So far, there is no experimental research report on the impact of Mabi wood's previous crop varieties on seedling cultivation. There is no basis for the selection of seedbed land, and it is impossible to select the seedbed land. The serious problem of high disease susceptibility and mortality rate; because the seedlings carry germs and pests in the nursery, after transplanting, the root system is easy to rot, and the plants suffer from diseases, resulting in high mortality, high disease susceptibility rate, and widespread spread of diseases and insect pests, which brings great harm to production. to seriously damage

There are also reports of on-demand planting with mabi seeds, but this method is not standardized and cannot meet the requirements of large-scale production

[0005] According to the long-term experimental practice, we have invented a large-scale seedling seedling cultivation in greenhouses, which has low seedling susceptibility rate, strong seedling body, high transplanting survival rate, easy operation, and strong rhizome, which is suitable for the propagation of Mabi wood field seedlings. technology, which overcomes the limitations of existing seedling raising technology

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