CN107409667B

CN107409667B - Culture method for improving shade tolerance of gramineous herbaceous plants

Info

Publication number: CN107409667B
Application number: CN201710212570.0A
Authority: CN
Inventors: 李祖祥; 夏爱华; 夏祖国
Original assignee: Zhenjiang Runxiang Garden Technology Development Co ltd
Current assignee: Zhenjiang Runxiang Agricultural Technology Co.,Ltd.
Priority date: 2017-04-01
Filing date: 2017-04-01
Publication date: 2020-04-14
Anticipated expiration: 2037-04-01
Also published as: CN107409667A

Abstract

The invention discloses a culture method for improving the shade-tolerant performance of gramineous herbaceous plants, which comprises the following steps: (1) firstly, planting seedlings of grass family herbaceous plants in a greenhouse, and controlling illumination, temperature and soil humidity after the seedlings survive; (2) culturing according to 29% sun-shading, 56% sun-shading, 77% sun-shading and 91% sun-shading conditions in sequence, wherein culturing is continuously carried out for two seasons under the 77% sun-shading condition, and culturing is carried out for one season under the rest conditions; (3) selfing and fructifying in each season, taking healthy seeds for germination and emergence, then planting in a greenhouse, and culturing under the next sunshade condition after the seedlings survive. Compared with the prior art, the cultivation method breaks through the forbidden area of the high-shade growth of grass seeds of the gramineae, and the cultivated grass seeds can be selected for landscaping and water and soil conservation under high-shade conditions such as forest lands, overpasses and the like, so that a large amount of land can be saved, and the demand of greening seeds can be met.

Description

Culture method for improving shade tolerance of gramineous herbaceous plants

Technical Field

The invention relates to a culture method for improving the shade-tolerant performance of gramineous herbaceous plants, belonging to a grass plant culture method.

Background

With the increase of population in China and the rapid development of urban and rural construction, on one hand, the land area is rapidly reduced, and on the other hand, the construction of urban landscape green lands is rapidly developed, and a large number of lawns are needed for greening. However, the gramineous herbaceous plants at home and abroad have low shading rate, the maximum shading rate is below 65 percent generally, the gramineous herbaceous plants are difficult to adapt to the environment under the sun-shading condition for a long time, and the application is greatly limited.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the technical defects, the invention aims to provide a culture method for improving the shade tolerance of grass plants.

The technical scheme is as follows: in order to achieve the above object, the present invention discloses a cultivation method for improving the shade-tolerant performance of grass plants of the family Gramineae, comprising the steps of:

(1) firstly, planting seedlings of grass family herbaceous plants in a greenhouse, and controlling illumination, temperature and soil humidity after the seedlings survive;

(2) culturing according to 29% sun-shading, 56% sun-shading, 77% sun-shading and 91% sun-shading conditions in sequence, wherein culturing is continuously carried out for two seasons under the 77% sun-shading condition, and culturing is carried out for one season under the rest conditions;

(3) selfing and fructifying in each season, taking healthy seeds for germination and emergence, then planting in a greenhouse, and culturing under the next sunshade condition after the seedlings survive.

Preferably, the grass family herbaceous plant is liberty No. ii, saber No. 3, dasa, saber No. 1 and rubisco No. 1.

Preferably, the temperature control method comprises: when the temperature is lower than 5 ℃, heating treatment is carried out, and the temperature in the greenhouse is kept at 4-6 ℃; when the temperature is 6-12 ℃, no adjustment is made; when the temperature is higher than 13 ℃ and lower than 22 ℃, the temperature is controlled to be 10-15 ℃; when the temperature is higher than 23 ℃, the temperature is controlled to be 17-22 ℃.

Preferably, the soil humidity control method during cultivation according to 29% sun shading and 56% sun shading conditions comprises the following steps: the soil humidity is controlled to be 45-50% in the seedling stage and 55-60% in the ear-bearing, ear-heading, poplar flower and oar-filling stages.

Preferably, the soil humidity control method comprises the following steps of when the cultivation is carried out for two seasons under the condition of 77% sun shading: the soil humidity is controlled to be 50-55% in the seedling stage and 60-65% in the ear-bearing, ear-heading, poplar flower and oar-filling stages.

Preferably, the soil humidity control method during the cultivation under the 91% sun-shading condition comprises the following steps: the soil humidity is controlled to be 55-60% in the seedling stage and 65-70% in the ear-bearing, ear-heading, poplar flower and oar-filling stages.

In the prior art, the maximum shading capability of general grass seeds of the gramineae is only 60-65%, while the shading capability of the grass seeds cultured by the method can be improved by about 30%, so that the grass seeds are planted in a certain shaded open forest or under the forest to produce lawn seeds, a large amount of land resources can be saved, and the yield level of the grass seeds can be basically maintained; secondly, greening and beautifying can be carried out under the conditions of the shade closed environment such as overpasses, high-rise buildings, sparse forests or forests and the like; and thirdly, the soil erosion in the areas can be prevented. Thus, the method adapts to the development trend of urban landscape green land construction, environmental protection and full utilization of land resources.

The technical effects are as follows: compared with the prior art, the cultivation method breaks through the forbidden area of the high-shade growth of grass seeds of the gramineae, and the cultivated grass seeds can be selected for landscaping and water and soil conservation under high-shade conditions such as forest lands, overpasses and the like, so that a large amount of land can be saved, and the demand of greening seeds can be met.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

The following examples are all: the seeds of the meadow bluegrass varieties of free No. II, the rough stem bluegrass varieties of Sabo No. 1, Sabo No. 3 and Dasasa are all provided by Beijing Klowo seeds company; run grass No. 1 was provided by Zhenjiang runxiang garden science and technology development Limited.

Example 1:

a culture method for improving the shade-tolerant performance of grass family herbaceous plants comprises the following steps:

The grass family herbaceous plant is Runcao No. 1.

The temperature control method comprises the following steps: when the temperature is lower than 5 ℃, heating treatment is carried out, and the temperature in the greenhouse is kept at 4-6 ℃; when the temperature is 6-12 ℃, no adjustment is made; when the temperature is higher than 13 ℃ and lower than 22 ℃, the temperature is controlled to be 10-15 ℃; when the temperature is higher than 23 ℃, the temperature is controlled to be 17-22 ℃.

When the cultivation is carried out according to the conditions of 29% sunshade and 56% sunshade, the control method of the soil humidity comprises the following steps: the soil humidity is controlled to be 45-50% in the seedling stage and 55-60% in the ear-bearing, ear-heading, poplar flower and oar-filling stages.

The soil humidity control method comprises the following steps of when the cultivation is carried out for two seasons under the condition of 77% sunshade: the soil humidity is controlled to be 50-55% in the seedling stage and 60-65% in the ear-bearing, ear-heading, poplar flower and oar-filling stages.

When the cultivation is carried out under the condition of 91% sunshade, the control method of the soil humidity comprises the following steps: the soil humidity is controlled to be 55-60% in the seedling stage and 65-70% in the ear-bearing, ear-heading, poplar flower and oar-filling stages.

Example 2

The difference from example 1 is that the grass is liberty No. ii.

Example 3

The same as example 1, except that the grass plant is saber No. 3.

Example 4

The same as example 1, except that the grass plant is dapas.

Example 5

The same as example 1, except that the grass plant is saber No. 1.

Comparative example 1

The difference from example 1 is that the soil humidity control method in the cultivation under the conditions of 29% sun shading, 56% sun shading, 77% sun shading and 91% sun shading is as follows: the soil humidity is controlled to be 50-55% in the seedling stage and 60-65% in the ear-bearing, ear-heading, poplar flower and oar-filling stages.

Investigation of culture results:

and (3) taking healthy seeds from each group of cultured grass seeds for germination and seedling emergence, culturing under the condition of 95% sun shading, wherein other conditions are conventional growth conditions, and inspecting the survival rate, the average plant height and the average single plant spike forming number of each group, and the results are shown in the table 1 below.

The seeds used in comparative example 2 were the seeds used before the cultivation in example 1, i.e., the primordial seeds.

TABLE 1 Activity ratio of each component, average plant height and average spike number of single plant

Group of	Survival rate (%)	Average plant height (cm)	Average number of ears per plant
				Comparative example 1	74.2	49.6	3.2
Comparative example 2	56.3	32.7	1.8
				Example 1	98.2	67.2	5.2
Example 2	87.5	55.6	3.8
				Example 3	88.3	57.2	3.6
Example 4	87.5	53.1	3.9
				Example 5	86.4	54.8	3.5

From the results in table 1 above, the survival rate, the average plant height and the average spike number per plant of the grass seeds cultured according to the present invention were all significantly improved under 95% sun-shading conditions, and the shade-tolerant performance of the grass-moistening No. 1 in example 1 was most significantly improved, compared to the seed of comparative example 2, i.e., the seed which was not cultured.

In addition, compared with comparative example 1, the survival rate, the average plant height and the average spike number of the single plant of the grass seeds cultured by the invention are obviously improved under the condition of 95 percent of sun shading.

Claims

1. A culture method for improving the shade-tolerant performance of grass family herbaceous plants is characterized by comprising the following steps:

(2) culturing according to 29% sun-shading, 56% sun-shading, 77% sun-shading and 91% sun-shading conditions in sequence, wherein culturing is continuously carried out for two seasons under the 77% sun-shading condition, and culturing is carried out for one season under the rest conditions; when the cultivation is carried out according to the conditions of 29 percent of sunshade and 56 percent of sunshade, the control method of the soil humidity comprises the following steps: the soil humidity is controlled to be 45-50% in the seedling stage and 55-60% in the ear-bearing, ear-heading, poplar flower and oar-filling stages; the soil humidity control method comprises the following steps of continuously culturing for two seasons under 77% sun shading condition: the soil humidity is controlled to be 50-55% in the seedling stage and 60-65% in the ear-bearing, ear-heading, poplar flower and oar-filling stages; when the cultivation is carried out under the condition of 91% sunshade, the control method of the soil humidity comprises the following steps: the soil humidity is controlled to be 55-60% in the seedling stage and 65-70% in the ear-bearing, ear-heading, poplar flower and oar-filling stages;

2. The cultivation method for improving the shade-tolerance of gramineous herbaceous plants according to claim 1, wherein said gramineous herbaceous plants are freestyle No. ii, sabot No. 3, dasas, sabot No. 1 and rubisco No. 1.

3. The cultivation method for improving the shade-tolerance of grass family herbaceous plants as claimed in claim 1, wherein said temperature control method is: when the temperature is lower than 5 ℃, heating treatment is carried out, and the temperature in the greenhouse is kept at 4-6 ℃; when the temperature is 6-12 ℃, no adjustment is made; when the temperature is higher than 13 ℃ and lower than 22 ℃, the temperature is controlled to be 10-15 ℃; when the temperature is higher than 23 ℃, the temperature is controlled to be 17-22 ℃.