A method for obtaining high-quality lily scale cuttings in a solar greenhouse

Abstract

The invention provides a method for obtaining high-quality lily scale cutting seed bulbs in a solar greenhouse, which is characterized in that the method comprises the following steps: 1) breaking dormancy of lily seed bulbs into scales, 2) disinfecting the scales, 3) promoting seed bulb formation and growth with the scales, 4) cutting the scales, 5) culturing the scales into seed bulbs, and 6) breaking dormancy of the seed bulbs and planting the seed bulbs, which can save the investment or cost of constant temperature equipment, sterilize and disinfect the scales first, effectively prevent and treat various fungal diseases, resist viruses, effectively promote seed bulb formation and growth, so that the number of small seed bulbs obtained from each scale is 1-3, the circumference is 2-4 cm, and the scale weight is 1.0-1.5 g, which effectively shortens the subsequent planting time, avoids the possibility of the seed bulbs carrying viruses due to a long cycle, ensures the quality of the seed bulbs, and increases the economic benefits.

Description

Technical Field

[0001] The invention relates to a lily bulb breeding technology, in particular to a method for obtaining high-quality lily scale cutting bulbs in a solar greenhouse. Background Art

[0002] Lily has unique characteristics of rich color and pleasant fragrance, and is a favorite cut flower variety. It is cultivated in various parts of my country. At present, the bulbs used in the production of cut lilies and potted lilies are mostly obtained by scale cutting propagation. In the conventional lily bulb breeding process, in order to achieve a higher reproduction coefficient, a large number of small bulbs are formed, which are small in size and low in weight. Such bulbs not only have a long cycle in the subsequent bulb cultivation process, but also increase the probability of the bulbs carrying viruses, and the quality of the bulbs cannot be guaranteed, which in turn affects the economic benefits. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0003] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a method for obtaining high-quality lily scale cuttings in a solar greenhouse.

[0004] The present invention is accomplished through a series of technical solutions: a method for obtaining high-quality lily scale cuttings in a solar greenhouse, characterized in that it comprises the following steps:

[0005] 1) Lily bulbs are broken dormancy and processed into scales. Lily bulbs with good appearance and a circumference of 12-14 cm or more are selected. They are stored at -2-5℃ for 40-60 days to break dormancy. They are cleaned and the outer and middle scales are peeled off. The peeled scales are then placed in nylon mesh bags.

[0006] 2) Disinfection of scales: soak the bagged scales from step 1) in a mixture of 50% carbendazim wettable powder and 0.5% lentinan at a concentration of 800-1000 times for 30-50 minutes for sterilization, and drain the water;

[0007] 3) The scales promote the formation and growth of the seed balls. Soak the bagged scales from step 2) in a 500-800 times diluted 5% amino oligosaccharide solution for 1-2 hours to promote the formation and growth of the seed balls, and then dry the scales;

[0008] 4) Scale cuttings, use peat with a fiber length of 0-10mm as the cutting medium, and a bulb frame of 60cm×40cm×25cm as the cutting container. First, spread a 10-12cm thick layer of peat at the bottom of the bulb frame, and irrigate the matrix with RO water with a pH value of 6-7 and an EC of 0.8-1.0. Cuttings are made at a density of 200 pieces. Step 3) Dry the scales and cover the scales with a 3-5cm layer of peat;

[0009] 5) Scales are cultivated into seed balls. The temperature from 06:00 am to 18:00 pm is controlled to be between 19℃-30℃, with an average temperature of 25℃ and a soil temperature of 20-23℃. The temperature from 18:00 pm to 06:00 am the next day is controlled to be between 13℃-24℃, with an average temperature of 20℃ and a soil temperature of 18-20℃. The daytime light intensity is 12000-15000lx, the relative humidity of the air is 65-75%, and RO water is used to irrigate the soil to keep the humidity at 60%-70%. Cultivate for one month until small seed balls as big as rice grains grow at the base of the scales. After another 2 months of cultivation, the diameter of the small seed balls reaches 2-4cm and the average weight is 1.0-1.5g.

[0010] 6) Dormancy-breaking treatment and planting of the bulblets. The small bulblets obtained in step 5) are stored at 2-5°C for 40-60 days to break dormancy, taken out and planted in a greenhouse or in the field. After conventional water and fertilizer management, the circumference of the lily scale bulblets planted in the greenhouse reaches more than 12 cm after 16 months, and the circumference of the lily scale bulblets planted in the field reaches more than 12 cm after 18 months, which are flowering bulbs.

[0011] The method of the present invention has the following advantages and effects: by adopting the above scheme, the investment or cost of constant temperature equipment can be saved, the scales are first sterilized and disinfected, effectively preventing and controlling various fungal diseases and being anti-viral, and then soaked in a 500-800 times diluted 5% amino oligosaccharide solution, which effectively promotes the formation and growth of seed balls and increases the weight of small seed balls, while preventing and controlling fungi, bacteria and viruses. During the culture process, RO water is used to irrigate the substrate to avoid the influence of salt accumulation on the germination of scales and the growth of small seed balls. During the culture process, higher air temperature, soil temperature, air humidity and soil humidity are conducive to the germination of seed balls by scales. Through the present invention, the number of small seed balls obtained for each scale is 1-3, the circumference is 2-4 cm, and the scale weight is 1.0-1.5 g. Compared with other cutting methods, although the number of small seed balls obtained is less than that of other cutting methods, the circumference, weight and compactness of the small seed balls are better than those of conventional methods, so as to shorten the subsequent planting time of small seed balls, avoid long cycles and increase the probability of seed balls carrying viruses, ensure the quality of seed balls and increase economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a picture of the outer scale cuttings of 'Siberia' obtained by the present invention;

[0013] Figure 2 This is a picture of the seed bulbs of 'Siberia' obtained by conventional method;

[0014] Figure 3 This is a diagram of the 'Palazzo' middle scale cuttings obtained by the present invention;

[0015] Figure 4This is a picture of the seed bulbs of 'Palazzo' mid-layer scale cuttings obtained using the conventional method. DETAILED DESCRIPTION

[0016] The present invention will be further described below by way of examples.

[0017] Example 1

[0018] A method for obtaining high-quality lily scale cutting bulbs in a solar greenhouse, characterized in that it comprises the following steps:

[0019] 1) Select the first generation 'Siberia' lily bulbs imported from the Netherlands with good appearance and a circumference of more than 12-14 cm, store them at -2℃ for 60 days to break dormancy, clean them, peel off the outer and middle scales, and put the peeled scales into nylon mesh bags;

[0020] 2) Soak the bagged scales in 800 times diluted mixture of 50% carbendazim wettable powder and 0.5% lentinan for 50 minutes for sterilization, and drain the water;

[0021] 3) Soak the bagged scales from step 2) in 500 times diluted 5% amino oligosaccharide solution for 2 h to promote the formation and growth of seed balls, and dry the scales;

[0022] 4) Use peat with a fiber length of 0-10mm as the cutting medium, a bulb frame of 60cm×40cm×25cm as the cutting container, and spread 10cm of peat at the bottom of the bulb frame. Use RO water with a pH value of 6 and an EC of 0.8 to irrigate the medium thoroughly. Cut the dried scales on the medium at a density of 200 pieces, and then cover the scales with a 3cm layer of peat.

[0023] 5) Place the bulb frames neatly in the solar greenhouse, and control the temperature from 06:00 am to 18:00 pm to be 19℃, with an average temperature of 25℃ and a soil temperature of 20℃; the temperature from 18:00 pm to 06:00 am the next day to be 13℃-24℃, with an average temperature of 20℃ and a soil temperature of 18℃; the daytime light intensity is 12000lx, the relative humidity of the air is 65%, and RO water is used to keep the soil humidity at 60%; cultivate for one month until rice-sized bulbs grow at the base of the scales; after another 2 months of cultivation, the scales grow 3-10 strong roots, and the base of the scales grow 1-3 small bulbs with a circumference of 2-4cm, with an average weight of 1.0g;

[0024] 6) The small seed balls obtained in step 5) are stored at 2° C. for 40 days to break dormancy, taken out and planted in a greenhouse. After conventional water and fertilizer management, the circumference of the lily scale seed balls reaches more than 12 cm after 16 months, and they are flowering bulbs.

[0025] The seed balls obtained in Example 1 are shown in Figure 1 At the same time, the same batch of 'Siberia' first-generation bulbs imported from the Netherlands were cultivated using conventional methods, and the resulting bulbs were Figure 2 ;Depend on Figure 1 It is known that although the number of seed balls obtained by the present invention is small, the roots are thick and the circumference is 2-4 cm. The average weight of the small seed balls is 1.0 g. The small seed balls are planted in a greenhouse. After conventional water and fertilizer management, the circumference of the lily scale seed balls planted in the greenhouse reaches more than 12 cm after 16 months, that is, the flowering bulbs.

[0026] and Figure 2 There are many seed balls in the greenhouse, but the roots are thin, with a circumference of only 1-2cm and an average weight of 0.6g. The small seed balls are planted in a greenhouse. After conventional water and fertilizer management, the circumference of the seed balls will reach more than 12cm after 24 months. The long period will increase the probability of the seed balls carrying viruses, making it difficult to ensure the quality of the seed balls.

[0027] Example 2

[0028] 1) Select the first generation lily bulbs of the Dutch imported 'Pallazo' with good appearance and circumference of 16-18 cm, store them at 5℃ for 40 days to break dormancy, clean them, peel off the outer and middle scales, and put the peeled scales into nylon mesh bags;

[0029] 2) Soak the bagged scales in 800 times diluted mixture of 50% carbendazim wettable powder and 0.5% lentinan for 50 minutes for sterilization, and drain the water;

[0030] 3) Soak the bagged scales from step 2) in 800 times diluted 5% amino oligosaccharide solution for 1 hour to promote the formation and growth of seed balls, and then dry the scales;

[0031] 4) Use peat with a fiber length of 0-10mm as the cutting medium, a bulb frame of 60cm×40cm×25cm as the cutting container, and spread 12cm of peat at the bottom of the bulb frame. Use RO water with a pH value of 7 and an EC of 1.0 to irrigate the medium thoroughly. Cut the dried scales on the medium at a density of 150 pieces, and then cover the scales with a 5cm layer of peat.

[0032] 5) Place the bulb frames neatly in the solar greenhouse, and control the temperature from 06:00 am to 18:00 pm to be 30℃, with an average temperature of 25℃ and a soil temperature of 23℃; the temperature from 18:00 pm to 06:00 am the next day to be 13℃-24℃, with an average temperature of 20℃ and a soil temperature of 20℃; the daytime light intensity is 15000lx, the relative humidity of the air is 75%, and RO water is used to keep the soil humidity at 70%; after about one month of cultivation, 2-3 small bulbs as big as rice grains grow at the base of the scales. After another 2 months of cultivation, the diameter of the small bulbs is 2-4 cm, the average weight of the small bulbs is 1.5g, and 3-8 strong roots grow on the small bulbs;

[0033] 6) The small seed balls obtained in step 5) are stored at 5° C. for 60 days to break dormancy, taken out and planted in the field. After conventional water and fertilizer management, the circumference of the lily scale seed balls reaches more than 12 cm after 18 months, and they are flowering bulbs.

[0034] The seed balls obtained in Example 2 are shown in Figure 3 At the same time, the same batch of 'Siberia' first-generation bulbs imported from the Netherlands were cultivated using conventional methods, and the resulting bulbs were Figure 2 ;Depend on Figure 3 It is known that although the number of bulbs obtained by the present invention is small, the roots are thick and the circumference is 2-4 cm. The average weight of the small bulbs is 1.5 g. The small bulbs are planted in the field. After conventional water and fertilizer management, the circumference of the bulbs reaches more than 12 cm after 18 months, which means they are flowering bulbs.

[0035] and Figure 4 There are many seed balls in the greenhouse, but the roots are thin, with a circumference of only 1-2cm and an average weight of 0.7g. The small seed balls are planted in a greenhouse. After conventional water and fertilizer management, the circumference of the seed balls will reach more than 12cm after 24 months. The long period will increase the probability of the seed balls carrying viruses, making it difficult to ensure the quality of the seed balls.

Claims

1. A method for obtaining high-quality lily scale cutting bulbs in a solar greenhouse, characterized in that It includes the following steps: 1) Break dormancy of lily bulbs by processing them into scales. Select lily bulbs with good appearance and a circumference of 12-14 cm or more. Store them at -2-5°C for 40-60 days to break dormancy. Clean them, peel off the outer and middle scales, and place the peeled scales in a nylon mesh bag. 2) Disinfection of scales: soak the bagged scales from step 1) in a mixture of 50% carbendazim wettable powder and 0.5% lentinan at a dilution ratio of 800-1000 for 30-50 minutes to sterilize the scales, and drain the water; 3) Scales promote the formation and growth of seed balls. Soak the bagged scales from step 2) in a 500-800 times diluted 5% amino oligosaccharide solution for 1-2 hours to promote the formation and growth of seed balls and increase the weight of the small seed balls. Dry the scales. 4) For scale cuttings, use peat with a fiber length of 0-10mm as the cutting medium and a 60cm×40cm×25cm bulb frame as the cutting container. First, lay a 10-12cm thick layer of peat on the bottom of the bulb frame. Water the matrix thoroughly with RO water with a pH of 6-7 and an EC of 0.8-1.0 to prevent salt accumulation from affecting scale germination and bulb growth. Plant 200 cuttings at a density. Cover the dried scales from step 3) with a 3-5cm layer of peat. 5) Cultivate scales into bulbils. Control the following: Temperature from 6:00 AM to 6:00 PM fluctuates between 19°C and 30°C, with an average temperature of 25°C, and soil temperature of 20-23°C; Temperature from 6:00 PM to 6:00 AM fluctuates between 13°C and 24°C, with an average temperature of 20°C, and soil temperature of 18-20°C; Daytime light intensity is 12,000-15,000 lx, and relative humidity is 65-75%. Irrigate with RO water to maintain soil moisture at 60-70%. Cultivate for one month until small bulbils the size of rice grains appear at the base of the scales. After another two months, the bulbils reach a circumference of 2-4 cm and an average weight of 1.0-1.5 g. 6) Bulb dormancy-breaking treatment and planting: The small bulbs obtained in step 5) are stored at 2-5°C for 40-60 days to break dormancy, taken out and planted in a greenhouse or in a field. After conventional water and fertilizer management, the lily scale bulbs planted in the greenhouse have a circumference of more than 12 cm after 16 months, and the lily scale bulbs planted in the field have a circumference of more than 12 cm after 18 months, indicating that they are flowering bulbs.

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