CN104686188A - Cyclobalanopsis gilva seedling cutting method - Google Patents

Abstract

The invention relates to plant breeding methods, in particular to a cyclobalanopsis gilva seedling cutting method. The method includes the following steps that a scion is collected, and the scion is made to be a cutting slip with the length being 8-10 cm, wherein three leaves on the top of the cutting slip are kept, and the 2/5 area of each leaf is reserved; an upper notch of the cutting slip is a flat opening, the scion is treated by hormones, the scion is placed in a plug tray in a cuttage mode, sufficient watering is conducted, a sunshade net is built over a cutting bed, the temperature is controlled to be 13-28 DEG C, the relative humidity is kept more than 80%, and water is sprayed once or twice or three times; carbendazim is sprayed weekly. According to the cyclobalanopsis gilva seedling cutting method, cuttage vegetative propagation is adopted, the good characteristic of a parent body can be kept, the rooting percentage of cyclobalanopsis gilva reaches up to 80.4%, the average root length is 3.52 cm, and the average rooting number is 5.55. The survival rate of good seedlings is increased on the premise that the production cycle is shortened, the breeding speed is high, the invested cost is low, operation is easy and convenient, the character is stable, and popularization and large-scale afforestation of the good cyclobalanopsis gilva seedlings can be facilitated.

Description

Red skin Qinggang cuttage and seedling culture method

Technical field

The present invention relates to a kind of plant breeding methods, be specially red skin Qinggang cuttage and seedling culture method.

Background technology

Red skin Qinggang has another name called red C.-glauca, red skin C.-glauca, Hunan stone sweet oak etc., and formal name used at school Cyclobalanopsisgilva is the endangered species of China's preciousness.In recent years along with the fast development of China's economic, the demand of market to Precious Timber Species is increasing.Red skin Qinggang standing forest destroys serious, and natural forest resource falls sharply.In order to as early as possible large area afforestation and popularization be carried out in red skin Qinggang, be badly in need of carrying out scale seedling raising for afforestation, to meet the need of market.

The propagation technique in current red skin Qinggang is mainly seed propagation.Breeding key technology is hidden for first carrying out sand before sowing, after seed sprouting, carry out seeding and seedling raising again.

Research finds, red skin Qinggang seed belongs to Recalcitrant Seeds, in order to improve its germination rate, must be hidden by the sand of specified conditions and carry out vernalization, in the process of husky Tibetan, too high too low all to affect water balance in seed even dead for water content, crossing wets can cause rotten kind, causes red skin Qinggang germination rate obviously to reduce.And seedtime is also comparatively strict, must seize the opportunity, can should sow when the plumule of seed is just appeared, as excessively late in the sowing time, plumule is long, easily fractures at seeding time, thus affects plant percent.In a word, red skin Qinggang adopts seed propagation, and its sprout time is very long, and germination rate is lower, and is difficult to preserve maternal merit, thus causes the good seed supply of red skin Qinggang can not meet forest market demands, forms imbalance between supply and demand.

Summary of the invention

For above-mentioned technical problem; the object of the present invention is to provide a kind of red skin Qinggang propagation technique newly; namely by cuttage with realize reduce red skin Qinggang production cycle; save Productive statistics cost; keep improved seeds characteristics, for the popularization of red skin Qinggang seedling and scale afforestation provide new propagation technique and approach.

In order to achieve the above object, technical scheme of the present invention is:

Red skin Qinggang cuttage and seedling culture method, comprises the following steps:

(1) select to adopt fringe bar when early morning, temperature was lower, fringe bar picks up from 1 ~ 2 year life red skin Qinggang seedling stem or branch, is placed in clear water by the fringe bar under adopting and rinses;

(2) clean fringe bar is made long 8 ~ 10cm, reservation 3, top blade, often sheet leaf retain the cuttings of 2/5 area; Cuttings upper cut is flat mouth, and to reduce moisture loss, cut sth. askew near leaf segment place in lower end;

(3) tied by the cuttings lower alignment made, the carbendazim aqueous solution putting into mass concentration 0.3% is sterilized 1min, clean with distilled water flushing after taking-up;

(4) by fringe bar HORMONE TREATMENT, hormone comprises the 3-indolebutyric acid sylvite of green plant growth regulator GGR or 3000mg/L of 200mg/L, and fully soak branch lower end, soak time is 2 hours;

(5) in being coiled to cave by the tloig-cutlage handled well, the cuttage degree of depth is 4cm, and the base starting material composition weight ratio of cuttage is perlite: peat soil: yellow soil=1: 2: 2; Matrix in the dish of cave is a few days ago drenched and is filled with the sterilization of mass concentration 0.1% carbendazim by cuttage;

(6) cuttage is watered permeable after terminating, and puts up sunshade net above slotting machine, and temperature controls between 13-28 DEG C, and relative moisture remains on more than 80%, sprays water every day 1 ~ 3 time; Sprinkling per week carbendazim.

Want timely prevention and elimination of disease and pests in Rooting Process, pull out weeds in seedbed in time, promote cuttings robust growth.

Red skin Qinggang provided by the invention cuttage and seedling culture method; adopt cuttage vegetative propagation can keep the good characteristic of parent; red skin Qinggang rooting rate is up to 80.4%; the long 3.52cm of average root; on average take root several 5.55; under the prerequisite shortening the production cycle, improve the survival rate of excellent nursery stock, reproduction speed is fast, input cost is low, easy and simple to handle, proterties stablizes, be conducive to popularization and the scale afforestation of red skin Qinggang good seed.

Embodiment

The specific embodiment of the invention is described in conjunction with the embodiments.

Cuttage a few days ago needs matrix in the dish of cave to drench filling 1000 times of carbendazim sterilizations.Base starting material composition weight ratio is perlite: peat soil: yellow soil=1: 2: 2.

Select to adopt fringe bar when early morning, temperature was lower, branch under adopting is placed in clear water and rinses, then make long 8 ~ 10cm, retain 3, top blade, the cuttings of every sheet leaf 2/5 area, cuttings upper cut is flat mouth, to reduce moisture loss, cut sth. askew and try one's best near leaf segment place in lower end.The cuttings lower alignment made is tied, the carbendazim aqueous solution putting into 0.3% is sterilized 1min, clean with distilled water flushing after taking-up, by fringe bar HORMONE TREATMENT, by the process of experimental scheme scheme and cuttage in 32 holes dishes, the cuttage degree of depth is 4cm, water permeable after cuttage terminates, and put up sunshade net above slotting machine, in automated greenhouse, temperature controls at 13 ~ 26 DEG C, the highlyest be no more than 28 DEG C, relative moisture remains on more than 80%.Injection flow rate, depending on the size of temp. and humidity height and the area that shelters from heat or light in canopy, is sprayed water 1 ~ 3 time general every day.Want timely prevention and elimination of disease and pests in Rooting Process, spray 1 time with carbendazim weekly, pull out weeds in seedbed in time, promote cuttings robust growth.

Wherein, the hormone of process fringe bar uses the 3-indolebutyric acid sylvite of green plant growth regulator GGR and 3000mg/L of 200mg/L, i.e. K-IBA respectively.

After the green plant growth regulator GGR process of 200mg/L, the rooting rate of red skin Qinggang cuttage and seedling culture is 80.4%, the long 3.52cm of average root, on average takes root several 5.55.

After the 3-butyric acid potassium Ficus caricaL of 3000mg/L, the rooting rate of red skin Qinggang cuttage and seedling culture is 80.0%, the long 3.50cm of average root, on average takes root several 5.50.

Claims (1)

1. red skin Qinggang cuttage and seedling culture method, is characterized in that, comprise the following steps:

(1) select to adopt fringe bar when early morning, temperature was lower, fringe bar picks up from 1 ~ 2 year life red skin Qinggang seedling stem or branch, is placed in clear water by the fringe bar under adopting and rinses;

(2) clean fringe bar is made long 8 ~ 10cm, reservation 3, top blade, often sheet leaf retain the cuttings of 2/5 area; Cuttings upper cut is flat mouth, and to reduce moisture loss, cut sth. askew near leaf segment place in lower end;

(3) tied by the cuttings lower alignment made, the carbendazim aqueous solution putting into mass concentration 0.3% is sterilized 1min, clean with distilled water flushing after taking-up;

(4) by fringe bar HORMONE TREATMENT, hormone comprises the 3-indolebutyric acid sylvite of green plant growth regulator GGR or 3000mg/L of 200mg/L, and fully soak branch lower end, soak time is 2 hours;

(5) in being coiled to cave by the tloig-cutlage handled well, the cuttage degree of depth is 4cm, and the base starting material composition weight ratio of cuttage is perlite: peat soil: yellow soil=1: 2: 2; Matrix in the dish of cave is a few days ago drenched and is filled with the sterilization of mass concentration 0.1% carbendazim by cuttage;

(6) cuttage is watered permeable after terminating, and puts up sunshade net above slotting machine, and temperature controls between 13-28 DEG C, and relative moisture remains on more than 80%, sprays water every day 1 ~ 3 time; Sprinkling per week carbendazim.