A method for promoting adventitious root growth and root network layer formation of seashore paspalum seed stems

Abstract

The invention discloses a method for promoting the growth of seed stem adventitious roots and forming of a root system network layer of seashore paspalum. According to the method, a growth regulating agent is combined with a shading dark root growth promoting technology before rooting, only 7-10 days are needed for growing of 80% of seed stem adventitious roots of the seashore paspalum, only 28-30 days are needed for primary forming of the overall root system network layer, only about 40 days are needed for final forming of the root system network layer of the seed stem adventitious roots, and then high-quality high-density lawn carpet of the seashore paspalum can be obtained. Compared with the prior art, by the utilization of the method, the growth speed of the seed stem adventitious roots is increased by 400% or above when comparing with that of a natural state, and the time for forming the root system network layer is shortened from 90 days to 28 day under a natural state; in this way, the speed of growth of the seed stem adventitious roots and forming of the root system network layer of the seashore paspalum is greatly increased, meanwhile, the survival rate of seed stems of the seashore paspalum is increased, the speed of carpet forming is increased, it is not needed to frequently irrigate the lawn during culture, and cost is effectively lowered.

Description

technical field [0001] The invention relates to a method capable of effectively promoting the growth of adventitious roots of seashore paspalum seed stems and the formation of root network layers, and belongs to the technical field of plant cultivation. Background technique [0002] Seashore paspalum (scientific name: Paspalum vaginatum Swartz.; English name: seashore paspalum), also known as platinum grass, Hawaiian grass, etc., has the advantages of waterlogging and waterlogging resistance, trampling resistance, fast lawn formation, and good lawn quality, so it is widely used. At the same time, because of its strong salt tolerance, it has become the first choice for lawn grass species in areas with high soil salt content such as coastal development zones and seaside tidal flats. At present, seaside paspalum has been widely used in golf courses, ornamental lawns and other sports lawns. [0003] Due to the low seed setting rate of seaside paspalum, small seeds, low seed yie...

AI Technical Summary

Problems solved by technology

However, the turf laying method and the grass division method need to buy a large amount of seaside paspalum lawn as propagation materials, so the cost is high, and the transportation and storage are inconvenient, and the benefit is low

[0005] In order to overcome the problem of limited provenance of the seed propagation method, as well as the high cost of the turf laying method and the separate planting of grass blocks, and the inconvenience of storage and transportation, in recent years, the method of sowing seed stems (grass stems) has been used to plant and produce seaside paspalum. Lawn began to be widely used

[0006] However, in the process of seashore paspalum turf planting and turf production using the method of sowing seed stems, the growth rate of adventitious roots at stem nodes is slow after seashore paspalum seed stems are sown, the root network layer of adventitious roots is formed for a long time, and the survival rate of seed stems is low. , the slow speed of lawn formation has become the biggest obstacle to the promotion of this method

At the same time, when using the seed stem propagation method, in order to promote the growth of adventitious roots and ensure the survival rate in the early stage, it is necessary to frequently irrigate the lawn, which consumes a large amount of water resources, greatly increasing the cost and reducing the rate of economic benefits.

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