Method of increasing caulerpa lentillifera commodity output rate and improving caulerpa lentillifera commodity quality

Abstract

The invention provides a method of increasing the caulerpa lentillifera commodity output rate and improving the caulerpa lentillifera commodity quality. The method includes the steps that in an initial stage of culture, upright stems of caulerpa lentillifera are subjected to cut-off and low-light suspension culture to be induced to generate stolons; in a floating bed culture stage, a gradual addition control strategy is conducted on light intensity and nutrient salt; in middle and later stages of culture, the upright stems are cut off to keep appropriate culture density. The method of increasing the caulerpa lentillifera commodity output rate and improving the caulerpa lentillifera commodity quality is designed according to different light intensity and nutrient salt which are acquired during induced generation of different caulerpa lentillifera body parts in different stages of caulerpa lentillifera culture. By adopting the method of increasing the caulerpa lentillifera commodity output rate and improving the caulerpa lentillifera commodity quality, it can be promoted that the upright stems of caulerpa lentillifera generate plenty of stolons in the initial stage of growth, the caulerpa lentillifera body growth speed in the floating bed culture stage and the commodity output rate are significantly increased, and upright stem products with high quality are obtained in a harveststage.

Description

technical field [0001] The invention belongs to seawater algae cultivation technology, and in particular relates to a method for improving the commercial output rate and product quality of Botrytis elongatus. Background technique [0002] Caulerpa lentillifera, commonly known as "sea grape", is a newly cultivated tropical rare green algae, which has high nutritional value and health benefits, and has a huge market potential. The large-scale cultivation of Botrytis elongatus originated in Japan (1985). Its main production area is Okinawa. The cultivation method is mainly in the land greenhouse combined with deep ocean water. The annual output is about 600 tons, and the retail price in Japan is about 100 tons. RMB 700 / kg. At present, Vietnam is the main producer of Botrytis longstem in the world (beginning in 2004). Its breeding method is mainly pond culture, with a total annual output of 6,000-9,000 tons. Most of them are exported to Japan, Europe and the United States, and ...

AI Technical Summary

Problems solved by technology

In recent years, domestic research on the cultivation of V. long-stemmed fern is in the ascendant, and the scale of domestic cultivation is far from industrialization. There are many constraints, such as: 1) The price of the long-stem V. long-stem product is high and the domestic demand is not enough. Big

2) Domestic production costs are relatively high (including the cost of building workshops, purchasing long-stem grape fern algae, winter heating, labor costs, etc.)

3) The industrial cultivation technology of V. long-stemmed fern algae in China is immature

In addition, there are few reports on effective technical means to further improve the yield and quality of Botrytis elongatus in the early and late stages of cultivation