CN103947400A - Optimal cultivation method for prolonging viewing period of hordeum jubatum - Google Patents

Abstract

The invention provides an optimal cultivation method for prolonging a viewing period of hordeum jubatum. The method comprises the following steps of starting to seed in a greenhouse in late April every year; transplanting to a pot in early May; selecting and using optimal culture media selected specially, wherein the ratio of loam to turf to sand is 1:1:1; in late May, one week prior to head sprouting, spraying multi-effect triazole (PP333) with the concentration of 0.75-1.00g/L (concentration unit) for one time, wherein the spraying amount per plant is 100ml, and then transplanting to an open field seedbed; in mid-June, two weeks after head sprouting, spraying multi-effect triazole (PP333) with the concentration of 0.75-1.00g/L (concentration unit) for the second time, wherein the spraying amount per plant is 100ml. According to the optimal cultivation method, the hordeum jubatum subjected to optimal cultivation grows well and has flourishing roots. The optimum viewing period of the hordeum jubatum from a mature period to a spike loose period is prolonged for more than two times, and the viewing effect is optimized.

Description

Extend the awns Hordeum jubatum Optimum Cultivation method of viewing period

Technical field: the present invention relates to a kind of awns Hordeum jubatum Optimum Cultivation method of viewing period that extends.

Background technology:

Awns Hordeum jubatum (Hordeum jubatum), the large wheat straw of grass family belongs to perennial herb.Stalk is grown thickly, and upright or base portion slightly tilts, high 20-65cm, and footpath 1-2mm, tool 3-5 joint, without hair.Blade is flat, long 5-13cm, and wide 1.5-2.5mm, two sides is coarse.Spike is soft, reaches 12cm (comprising awns), arista shape, and long 5-6cm, its little Hua often deteriorates to aristiform.Be born in field or roadside, use seminal propagation.This kind is cold-resistant, and plant type is graceful, and spike is golden yellow, waves with the wind, particularly attractive in appearance, be a kind of north good view and admire grass product kind.Be applicable to, in afforestation that roadside, garden, flower border, flower bed, open forest land etc. locate, also can be used as ground cover plant, there is high application and popularization value.

Awns Hordeum jubatum best viewing period in Heilongjiang Province, be the beginning of July to mid-July, the time is shorter, only, for being two weeks, is necessary that by proper method, extending it views and admires the time.

Paclobutrazol (PP333) (chemical name: (2RS, 3RS)-1-(4-chlorphenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl) penta-3-alcohol), be the triazole type plant growth regulator of succeeding in developing the eighties, be the synthetic inhibitor of endogenous gibberellins.Also can improve the activity of plant indoleacetic acid oxidase, reduce the level of plant endogenous IAA.Obviously weaken plant tip growth advantage, promote lateral bud (tillering) to grow.The short strong many tillers of seedling outward appearance performance, leaf look dark green.Well developed root system.Anatomical research shows, paclobutrazol can make the cell of root, leaf sheath, leaf diminish, and the cell number of plies of each organ increases.Paclobutrazol low concentration is promoted the photosynthetic efficiency of seedling leaves; High concentration suppresses photosynthetic efficiency, improves root respiration intensity, reduces acrial part respiratory intensity, improves Stoma of Leaves resistance, reduces blade face transpiration.

Summary of the invention: the object of this invention is to provide spike viewing period of awns Hordeum jubatum is obviously extended, robust growth, regularity is high, the Optimum Cultivation method of prolongation awns Hordeum jubatum viewing period of root system development stalwartness.Technical scheme of the present invention is: a kind of awns Hordeum jubatum Optimum Cultivation method of viewing period that extends, in greenhouse, start sowing the annual last ten-days period in April, select the Optimum Cultivation matrix after screening the first tenday period of a month in May, each material volume ratio is loam: the peat composed of rotten mosses: sand=1: 1: 1, by seedling replanting in basin alms bowl, be first 1 week of awns Hordeum jubatum heading and mid-June to be within 2 weeks, respectively to spray paclobutrazol solution 1 time after the heading of awns Hordeum jubatum the last ten-days period in May, concentration is 0.75-1.00g/L, each every strain amount of spraying is 100ml, make the viewing period of awns Hordeum jubatum extend 15-25 days, optimized its appreciation effect.

The present invention sprays paclobutrazol (PP333) 1 time in may the last ten-days period (earing first 1 week), and concentration is 0.75-1.00g/L, and every strain amount of spraying is 100ml.Can suppress the excessive growth of awns Hordeum jubatum, make plant strain growth more healthy and stronger, well developed root system, promotes to tiller, and makes the regularity of plant maturation consistent, is conducive to plant nutrition accumulation.In mid-June, (latter 2 weeks of heading) sprays paclobutrazol (PP333) 0.75-1.00g/L for the second time, and every strain amount of spraying is 100ml.Make awns Hordeum jubatum postpone loose panicle in ripen in advance 7-10 days and fly kind of a 10-15 days.Viewing period reached about 40 days, than the awns Hordeum jubatum viewing period increase of growing under natural conditions about 25 days, and had optimized its appreciation effect.

Paclobutrazol is the conventional low toxicity of agricultural, harmless, environmental protection, growth regulator with low cost.Diluted concentration in this application again very low, consumption is less, does not have the possibility of any ecological pollution.There is the plant growth of delaying, suppress cane and extend, promote plant tillering, increase plant stress-resistance performance, improve output texts.The present invention has found accurately awns Hordeum jubatum two crucial time points in growth to be applied in to the application of the conventional purposes of paclobutrazol, has reached very good effect.The present invention is through the awns Hordeum jubatum robust growth of Optimum Cultivation, well developed root system.Can make best viewing period from maturing stage to loose panicle phase of awns Hordeum jubatum extend one times and have a surplus, optimize its appreciation effect.

Accompanying drawing explanation

Fig. 1 is the awns Hordeum jubatum Optimum Cultivation test effect table of comparisons

Fig. 2 is that awns Hordeum jubatum sprays variable concentrations paclobutrazol effect comparison table

Fig. 3 is the awns Hordeum jubatum of conventional method cultivation

Fig. 4 is the awns Hordeum jubatum of Optimum Cultivation method cultivation

Embodiment:

A kind of awns Hordeum jubatum Optimum Cultivation method of viewing period that extends, in greenhouse, start sowing the annual last ten-days period in April, select the Optimum Cultivation matrix after screening the first tenday period of a month in May, each material volume ratio is loam: the peat composed of rotten mosses: sand=1: 1: 1, by seedling replanting in basin alms bowl, be first 1 week of awns Hordeum jubatum heading and mid-June to be within 2 weeks, respectively to spray paclobutrazol solution 1 time after the heading of awns Hordeum jubatum the last ten-days period in May, concentration is 0.75-1.00g/L, each every strain amount of spraying is 100ml, make the viewing period of awns Hordeum jubatum extend 15-25 days, optimized its appreciation effect.As shown in Figure 1: the awns Hordeum jubatum maturing stage that experiment showed, the awns Hordeum jubatum contrast conventional cultivation that adopts Optimum Cultivation method shifts to an earlier date 7-10 days, and the loose panicle phase is delayed 10-15 days.Effectively extended the viewing period of awns Hordeum jubatum.

Embodiment 1: 17 days April of 2012, we started to germinate through 7 days at the seed of warm indoor seeding awns Hordeum jubatum.May 7, we by seedling replanting in basin alms bowl.In basin alms bowl, we select four kinds of different substrates, their volume ratio respectively: 1, loam: the peat composed of rotten mosses=2: 1; 2, loam: vermiculite=2: 1; 3, loam: the peat composed of rotten mosses: sand=1: 1: 1; 4, loam: vermiculite: the peat composed of rotten mosses=1: 1: 1.We make discovery from observation, and in matrix 1, growth of seedling is bad, have the sticky heavy phenomenon of matrix, bad hydraulic permeability.In matrix 2, vermiculite is due to lighter, after watering matrix layering serious, the seedling performance being grown in is wherein also bad.In matrix 3, the balanced proportioning of different materials, especially adds after sand, and water penetration and gas permeability obviously increase, and awns Hordeum jubatum seedling is robust growth therein, and regularity is high, and root system development is healthy and strong.Matrix 4 shows as ventilative and water penetration is poor, the seedling situations such as occurring flavescence, wilting of growing therein.Therefrom can analyze out that awns Hordeum jubatum is suitable in sandy loam, grows.So we think that the volume ratio of each material is: loam: the peat composed of rotten mosses: sand=1: the matrix of 1: 1 is the comparatively desirable transition cultivating matrix of awns Hordeum jubatum seedling.

Example 2:2012 May 21, we choose the awns Hordeum jubatum that 60 strain growing ways are close, 10 strains are 1 group, spraying concentration is the paclobutrazol solution of 0.50g/L, 0.75g/L, 1.00g/L, 1.50g/L, 2.00g/L respectively, leave 1 group and do not spray paclobutrazol as blank, each every strain amount of spraying is 100ml.After heading, we are carried out open country transplanting, and June 18, we sprayed paclobutrazol solution for the second time, and spraying concentration is consistent with last time, and each every strain amount of spraying is 100ml.The initial heading of awns Hordeum jubatum experiment in 2012 is May 29, and June 3, heading was neat.

Through paired observation, spraying concentration is that the awns Hordeum jubatum growth potential of 0.50g/L paclobutrazol solution was compared with control group with flowering stage, and effect is not remarkable.Spraying concentration is that the awns Hordeum jubatum growth potential of the paclobutrazol solution of 0.75g/L and 1.00g/L was compared with control group with viewing period, and plant is slightly short, grows more healthy and strong, main view and admire feature spicate viewing period and obviously extends.Spraying concentration is colored fringe viewing period of the awns Hordeum jubatum of 0.75g/L paclobutrazol solution to have extended 15 days, and spraying concentration is colored fringe viewing period of the awns Hordeum jubatum of 1.00g/L paclobutrazol solution to have extended 25 days.Spraying concentration is that the awns Hordeum jubatum of the paclobutrazol solution of 1.50g/L and 2.00g/L is compared with control group, occurred obvious poisoning, plant height only has the 50%-60% of control group, downgrades obviously, spike is also less even can not be ripe, had a strong impact on its ornamental value.Therefore, the paclobutrazol solution that we think at latter 2 weeks spraying concentrations of front 1 week of awns Hordeum jubatum heading and heading is 0.75-1.00g/L, can promote its stalwartness to grow, and extends its spicate viewing period, effectively improves its ornamental value.Refer to Fig. 2

From these two examples, can find out, in the seedling replanting stage of awns Hordeum jubatum, the volume ratio of choosing each material is: loam: the peat composed of rotten mosses: sand=1: the matrix of 1: 1, be conducive to the healthy and strong growth of seedling, and be good transition cultivating matrix.The paclobutrazol solution that is 0.75-1.00g/L at latter 2 weeks spraying concentrations of front 1 week of awns Hordeum jubatum heading and heading, can promote its stalwartness to grow, and obviously extends its spicate viewing period.This is also the advantage place of our Optimum Cultivation method and conventional outdoor cropping method.

To awns Hordeum jubatum, in mid-July, with the observation photo of time, can find: in Fig. 3, the awns Hordeum jubatum of conventional cultivation has started loose panicle, and seed disperses, and its ornamental value greatly reduces.Fig. 4 adopts the awns Hordeum jubatum of our Optimum Cultivation method cultivation, at one time, is still in the maturing stage, and Hua Sui is strong, does not occur loose panicle and the seed situation of dispersing, and is keeping viewing and admiring preferably state.

Claims (1)

1. one kind extends the awns Hordeum jubatum Optimum Cultivation method of viewing period: in greenhouse, start sowing the annual last ten-days period in April, select the Optimum Cultivation matrix after screening the first tenday period of a month in May, each material volume ratio is loam: the peat composed of rotten mosses: sand=1: 1: 1, by seedling replanting in basin alms bowl, be first 1 week of awns Hordeum jubatum heading and mid-June to be within 2 weeks, respectively to spray paclobutrazol solution 1 time after the heading of awns Hordeum jubatum the last ten-days period in May, concentration is 0.75-1.00g/L, each every strain amount of spraying is 100ml, make the viewing period of awns Hordeum jubatum extend 15-25 days, optimized its appreciation effect.