Rice seedling planting method for constructing delphacidae population

Abstract

The invention discloses a rice seedling planting method for constructing a delphacidae population. The rice seedling planting method comprises the following steps of: (1) performing direct seeding, i.e., flatly laying rice seeds at the bottom of a culture container, spraying water to the rice seeds to wet the rice seeds and covering the culture container to prevent the rice seeds from being dried due to evaporation of water; (2) culturing the rice seeds treated by the step (1) under the conditions of temperature of 25-30 DEG C and illumination time ratio of day to night of 14:10 hours; and (3) after rice seedlings grow to 2-3 cm, irrigating with nutrient solution and inoculating the delphacidae population. According to the rice seedling planting method, a rice planting technology is optimized for many times, the simplest and most practical planting method is screened, precious scientific and research time, space and expenditure are saved for the masses of scientific and research workers, and simple and feasible technological equipment is provided for smooth development of various principal, city and national level items. The method has the advantages of low cost, space saving, time saving, easiness in operation and capability of greatly increasing the test efficiency.

Description

technical field [0001] The invention relates to the field of plant cultivation, in particular to a rice seedling planting method for establishing planthopper populations. Background technique [0002] As a major pest in rice production, rice planthopper mainly includes three types: brown planthopper (Nilaparvata lugens), white-backed planthopper (Sogatella furcifera) and white-backed planthopper (Laodelphax striatellus). , can also be used as vector insects to spread various viral diseases or induce other diseases, directly or indirectly harm rice, and cause devastating losses in severe cases. Among them, brown planthopper can spread tussock dwarf disease and leaf dwarf disease, and can also induce rice sheath blight, sclerotinia sclerotiorum infection and sooty fungus breeding; The vector insect of rice black-streaked dwarf disease; SBPH mainly transmits rice stripe leaf blight, rice black-streaked dwarf disease and corn rough dwarf virus. These three species of planthopp...

AI Technical Summary

Problems solved by technology

[0003] 1) Seed treatment is cumbersome. For example, Ma Chongyong et al. (2008, Insect Knowledge) used 50°C water to treat seeds in the method of indoor mass reproduction and overwintering breeding of SBPH, which requires black towels to moisturize

[0004] 2) Zhang Aimin and Liu Xiangdong (2008, Knowledge of Insects) proposed a simple method of raising SBPH indoors. Although this method is simple and feasible, it needs to be replaced constantly because the rice roots will penetrate into the sponge, and the sponge is soaked in water. It is easy to mold in the liquid, so this method also has certain defects

[0005] 3) The more traditional planting method is soil cultivation, which is laborious to carry and easy to pollute the laboratory. Planting indoors has poor lighting and takes up space

If you want to do test tube treatment, it is complicated to pull out seedlings and separate seedlings, and it is not conducive to the observation of insects

[0006] 4) If the root system of rice seedlings is not developed enough, it is easy to lodging when transplanting or dividing seedlings, which is not conducive to the test operation and affects the test results

[0007] 5) General seedlings have a seed soaking process, which complicates the test process

Images