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Technology for culturing and collecting seeding of Camptotheca acuminata Decne

A harvesting method and seedling technology, applied in horticultural methods, botanical equipment and methods, horticulture, etc., can solve the problems that cannot be promoted, and achieve the effect of increasing the content of camptothecin

Inactive Publication Date: 2006-01-04
NORTHEAST FORESTRY UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned camptotheca cultivation method is only applicable to the natural distribution area of ​​camptotheca, and cannot be promoted in the vast areas of the north, and this cultivation method is only aimed at the establishment of its dwarf growth mode, and does not involve cultivation measures to increase the content of camptothecin in camptothecin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In early spring, transplant the philodendron seedlings with true leaves into the field, and the spacing between plants and rows is 15 cm. After 15 days, apply 35 kg of nitrogen fertilizer per mu. Irrigate once a day to keep the soil moisture above 70%. During the growth of philodendron seedlings, stop irrigation every 4 weeks and shade with a shade net to keep the light intensity at about 40% of full light once. After 3 days of treatment, harvest the aboveground branches and leaves, and keep 15 cm Left and right aerial plants. At the end of the growing season and 10 days before all harvesting, stop irrigation and use plastic shade nets for shading treatment to keep the light intensity at about 50% of full light. After 10 days of treatment, the whole plant of C. philodendron seedlings is harvested.

Embodiment 2

[0023] In early spring, transplant the philodendron seedlings with true leaves into the field, and the spacing between plants and rows is 8 cm. After 5 days, apply 50 kg of nitrogen fertilizer per mu. Irrigate once every 2 days to keep the soil moisture above 60%. During the growth of philodendron philodendron seedlings, stop irrigation every 6 weeks and shade with a colorless filter film to keep the light intensity at about 60% of full light once. After 4 days of treatment, harvest the aboveground branches and leaves, and keep Above-ground plants about 20 cm. At the end of the growing season and 10 days before all the harvests are ready, stop irrigation and shade with shade nets to keep the light intensity at about 55% of full light. After 15 days of treatment, the whole plant of C. philodendron seedlings is harvested.

Embodiment 3

[0025] In early spring, transplant the philodendron seedlings with true leaves into the field, and the spacing between plants and rows is 20 cm. After 25 days, apply 30 kg of nitrogen fertilizer per mu. Irrigate every 3 days to keep the soil moisture above 50%. During the growth of philodendron philodendron seedlings, stop irrigation every 8 weeks and shade with a red filter film to keep the light intensity at about 80% of full light once. After 6 days of treatment, harvest the aboveground branches and leaves, and keep 20 Above-ground plants about cm. 8 days before the end of the growing season and ready to harvest, stop irrigation and shade with a red filter film to keep the light intensity at about 40% of full light. After 8 days of treatment, the whole plant of C. philodendron seedlings is harvested.

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PUM

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Abstract

Nyssaceae tree sapling cultivation and collection process comprises, using Nyssaceae seedling obtained from seeds of the same year as sprout source, transplanting seedling into land in early spring, adding nitrogen fertilizer, watering, collecting bough and leaflet of over ground portion, completing total-strain collection after the growing season ends. The invention increases the yield of plant material and the content of camptothecine.

Description

technical field [0001] The invention relates to a method for cultivating woody plants, in particular to a technique for cultivating and harvesting philodendron edulis seedlings, which use the seedlings obtained from the seeds of philodendron philodendron in the same year as seedling sources. Background technique [0002] Camptotheca acuminata Decaisne (Camptotheca acuminata Decaisne) is a plant of the genus Camptotheca (Camptotheca) of the blue fruit tree family (also known as Davidiaceae, Nyssaceae). . [0003] Camptothecin (CPT) is an alkaloid isolated from camptothecin that has obvious inhibitory effects on a variety of tumor cells, and has a unique anticancer mechanism (camptothecin is the most important topological drug discovered so far. Isomerase I inhibitors) At present, two camptothecin drugs with high efficiency and low toxicity have been approved by the US FDA for clinical treatment of various cancers. The whole plant of camptothecin contains camptothecin. At p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G7/00
Inventor 阎秀峰王洋张玉红于涛戴绍军
Owner NORTHEAST FORESTRY UNIVERSITY
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