Method for delaying flowering period of kuerle fragrant pear

Abstract

The application discloses a method for delaying the flowering period of Korla fragrant pear, comprising the following steps: checking the weather forecast at the flower bud germination period of the Korla fragrant pear, the weather forecast showing that the late spring cold will come in the predicted full flowering period of the Korla fragrant pear, and spraying the mixed agent of Flu and TIBA on the whole plant of the Korla fragrant pear at the flower bud germination period of the Korla fragrant pear to induce the Korla fragrant pear to delay flowering, wherein the concentration of Flu in the mixed agent of Flu and TIBA is 100 mg / L, and the concentration of TIBA is 100 mg / L. The application can delay the flowering period of the Korla fragrant pear, reduce the influence of low temperature on the growth and development of the flower organs of the Korla fragrant pear and pollination and fertilization, overcome the climate condition, and guarantee the productivity as much as possible, thereby improving the fruit setting rate, yield and quality of the Korla fragrant pear, providing technical guidance for preventing the Korla fragrant pear from the harm of the late spring cold and high quality and high yield, and having a wide application prospect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fruit tree cultivation, in particular to a method for delaying the flowering period of Korla fragrant pear. BACKGROUND

[0002] Korla fragrant pear has a flowering period from March to April, and is well-known and loved by people for its unique and strong aroma, crisp taste, delicate fruit texture, strong resistance to adversity, and high yield during planting, and has the reputation of "King of Pears" and "Prince of Fruits". Korla fragrant pear is a special product of Xinjiang, and according to statistics, the planting scale has broken through 1.1 million mu, with an annual output of 100,000 tons, and has become one of the important pillar industries in the local area.

[0003] In recent years, how to prevent the harm of late spring cold has been an important problem in fruit tree production. Low temperature can cause damage to flower organs and shedding of fruit trees, inhibit the normal development of flowers and affect pollination and fertilization, greatly reducing the fruit setting rate and fruit quality. Korla fragrant pear is also affected by late spring cold, which seriously affects the development of the Korla fragrant pear industry.

[0004] At present, the common methods for preventing the harm of late spring cold to fruit trees include fumigation, whitewashing, blowing and watering, but the effect on Korla fragrant pear is not ideal. Fumigation can easily cause air pollution. Whitewashing is mainly used for mature trees (7-50 years old), which is easy to fall off, uneven in thickness, and short in protection time. The blowing method is unstable in effect, may cause physiological disorders, and increases labor costs. The watering method consumes a lot of resources, causes pests and diseases, and reduces soil temperature. SUMMARY

[0005] The purpose of the present application is to provide a method for delaying the flowering period of Korla fragrant pear to solve the problems of the prior art.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0007] A method for delaying the flowering period of Korla fragrant pear, the method comprising the following steps: checking the weather forecast at the Korla fragrant pear flower bud germination period, the weather forecast showing that the late spring cold will arrive in the predicted Korla fragrant pear flowering period, and uniformly spraying a mixed agent of fluridone and 2,3,5-triiodobenzoic acid on the entire plant of Korla fragrant pear at the Korla fragrant pear flower bud germination period to induce the Korla fragrant pear to delay flowering; wherein the concentration of fluridone in the mixed agent of fluridone and 2,3,5-triiodobenzoic acid is 100 mg / L, and the concentration of 2,3,5-triiodobenzoic acid is 100 mg / L.

[0008] Further, the Korla fragrant pear is induced to delay flowering for 3-4 days.

[0009] Further, the mixed medicament of fluazinam and 2,3,5-triiodobenzoic acid is used in an amount that can sufficiently wet the spraying site and does not form flowing water drops; and the spraying time is before 10:30 in the morning and after 17:30 in the afternoon on a sunny day.

[0010] Further, if it rains within 5-7 days after spraying the mixed medicament of fluazinam and 2,3,5-triiodobenzoic acid, the spraying operation should be supplemented in time on a sunny day after the rain.

[0011] Further, the Korla fragrant pear is a Korla fragrant pear that is more than 7 years old.

[0012] Further, the Korla fragrant pear is a Korla fragrant pear that is 7-50 years old.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] The present application checks the weather forecast at the flower bud sprouting period of the Korla fragrant pear (the flower bud sprouting period and the full bloom period generally differ by 15-20 days, and the full bloom period is predicted in combination with the air temperature in the current year), and the weather forecast shows that the late spring cold will come in the predicted full bloom period of the Korla fragrant pear (the full bloom period is a key period for pollination and fertilization, and is also a key period for fruit setting and high-quality fruit formation. If the pistil is not frozen in the full bloom period, the secretion of the style and stigma is more and has strong activity, which is beneficial to improve the fruit setting rate and the amount of high-quality fruit.). In order to avoid the influence of the late spring cold on the pollination and fertilization of the pistil, the mixed medicament of Flu 100 mg / L+TIBA 100 mg / L is uniformly sprayed on the whole plant of the Korla fragrant pear, so as to induce the delayed flowering of the Korla fragrant pear by 3-4 days (in low temperature, if the flower does not open, the petals can well protect the unopened pistil, so as to keep the pistil in vigorous vitality, which is beneficial to pollination and fertilization.). The present application can delay the flowering period of the Korla fragrant pear, so as to reduce the influence of low temperature on the growth and development of the flower organs and the pollination and fertilization of the Korla fragrant pear. The productivity is ensured as much as possible while the climate condition is overcome, so as to improve the fruit setting rate, yield and quality of the Korla fragrant pear. The present application provides technical guidance for preventing the Korla fragrant pear from the harm of the late spring cold, high quality and high yield, and has a wide application prospect. The present application is simple and easy to operate, has low cost, fast effect and high benefit. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 Fig. 1 is a diagram of the initial form (left) and the state of the flower bud after 20 days (right) of the control group (water).

[0016] Fig. 2 Fig. 2 is a diagram of the initial form (left) and the state of the flower bud after 20 days (right) of the Flu+TIBA II group (Flu 100 mg / L+TIBA 100 mg / L). DETAILED DESCRIPTION

[0017] The technical solutions of the present application will be clearly and completely described below in combination with the embodiments and drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0018] The following examples were carried out in the pear garden of the West Campus of Tarim University. The experimental material was Korla fragrant pear with a tree age of 29 years (calculated from the planting of the pear tree), grafted on a Du pear rootstock and pollinated by Dangshan pear. The pear trees were oriented north-south with a spacing of 2 m x 4 m, and the average tree height was 3 m. The Korla fragrant pear trees with good growth conditions, growth vigor, phenological stages, and consistent cultivation conditions were selected for the experiment.

[0019] When the flower buds of the Korla fragrant pear were in the budding stage (March 19, 2024), the weather forecast showed that the late spring cold would arrive on April 6, 2024 (predicted start time of the Korla fragrant pear's blooming period this year). The Korla fragrant pear was treated as follows, with each treatment repeated three times:

[0020] (1) Control group (CK): water (tap water);

[0021] (2) Flu+TIBA I group: fluridone (Flu) 50 mg / L + 2,3,5-triiodobenzoic acid (TIBA) 100 mg / L, prepared with tap water;

[0022] (3) Flu+TIBA II group: Flu 100 mg / L + TIBA 100 mg / L, prepared with tap water;

[0023] (4) Flu+TIBA III group: Flu 150 mg / L + TIBA 100 mg / L, prepared with tap water;

[0024] (5) Flu+TIBA IV group: Flu 200 mg / L + TIBA 100 mg / L, prepared with tap water;

[0025] (6) CCC I group: CCC 50 mg / L, prepared with tap water;

[0026] (7) CCC II group: CCC 200 mg / L, prepared with tap water;

[0027] (8) CCC III group: CCC 350 mg / L, prepared with tap water;

[0028] (9) CCC IV group: CCC 500 mg / L, prepared with tap water;

[0029] (10) Paclobutrazol Group I: Paclobutrazol 50 mg / L, prepared with tap water;

[0030] (11) Paclobutrazol Group II: Paclobutrazol 250 mg / L, prepared with tap water;

[0031] (12) Paclobutrazol Group III: Paclobutrazol 450 mg / L, prepared with tap water;

[0032] (13) Paclobutrazol Group IV: Paclobutrazol 600 mg / L, prepared with tap water.

[0033] When treating, the prepared agent is added to a sprayer, and the whole plant (aboveground part) of the Korla Fragrant Pear is sprayed. When spraying, the liquid droplets should be fine and uniform, the agent dosage should be appropriate for fully wetting the whole plant without forming flowing water droplets, and the spraying time should be before 10:30 in the morning or after 17:30 in the afternoon on sunny days. If it rains within 5-7 days after spraying, the Korla Fragrant Pear should be sprayed again on the sunny day after the rain. The initial flowering period of each treatment is counted. The initial flowering period is counted when 5% of the flowers of the whole tree of the Korla Fragrant Pear open. The full flowering period is counted when 25% of the flowers of the whole tree of the Korla Fragrant Pear open. The final flowering period is counted when 75% of the flowers of the whole tree of the Korla Fragrant Pear open. The results of the counting of each treatment are shown in Table 1 and Figs. 1-2

[0034] Table 1 Effect of Flu+TIBA, Ancymidole, and Paclobutrazol on the Flowering Period of Korla Fragrant Pear

[0035]

[0036] As can be seen from Table 1, compared with the control, the Flu 50 mg / L+TIBA 100 mg / L treatment has little effect on the flowering period of the Korla Fragrant Pear; the Flu 100 mg / L+TIBA 100 mg / L treatment has a good effect, can delay the flowering period of the Korla Fragrant Pear by 3-4 days, and the flower organs do not change, and the leaf blades and new shoots grow normally; the Flu 150 mg / L+TIBA 100 mg / L treatment has an effect close to that of the Flu 100 mg / L+TIBA 100 mg / L treatment, but the pedicels are shorter, the development of new shoots is hindered (normal new shoots can grow to more than 20 cm, while the new shoots under this treatment are less than 5 cm), the petioles are short, and the leaf blades are small; after the Flu 200 mg / L+TIBA 100 mg / L treatment, the flowering period of the Korla Fragrant Pear is obviously delayed, the pedicels are extremely short, and no leaf blades and new shoots are seen. Compared with the control, ancymidole and paclobutrazol can delay the flowering period of the Korla Fragrant Pear by 1-2 days. In addition, through years of observation, Flu 100 mg / L+TIBA 100 mg / L has light residue in the tree body, has little effect on fruit quality, and pollutes the environment less; but ancymidole and paclobutrazol have a residue of 3-4 years in the tree body, easily affecting the growth and development of the tree body, flower bud differentiation, and fruit quality.​

[0037] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A method for delaying the flowering period of Korla fragrant pear, characterized in that: The method comprises the following steps: checking the weather forecast during the Korla fragrant pear flower bud budding period, the weather forecast indicating that a late spring cold snap will arrive during the predicted Korla fragrant pear peak flowering period, and uniformly spraying a mixture of fluridone and 2,3,5-triiodobenzoic acid on the entire Korla fragrant pear plant during the Korla fragrant pear flower bud budding period to induce delayed flowering of the Korla fragrant pear; wherein the concentration of fluridone in the mixture of fluridone and 2,3,5-triiodobenzoic acid is 100 mg / L, and the concentration of 2,3,5-triiodobenzoic acid is 100 mg / L.

2. A method for delaying the flowering period of Korla fragrant pear according to claim 1, characterized in that, This can be used to induce Korla pear to delay flowering by 3 to 4 days.

3. A method for delaying the flowering period of Korla fragrant pear according to claim 1 or 2, characterized in that, The dosage of the mixture of fluridone and 2,3,5-triiodobenzoic acid is such that the spraying area is fully moistened without forming flowing water droplets; the spraying time is before 10:30 in the morning and after 17:30 in the afternoon on sunny days.

4. A method for delaying the flowering period of Korla fragrant pear according to claim 1 or 2, characterized in that, If it rains within 5-7 days after spraying the mixture of fluridone and 2,3,5-triiodobenzoic acid, re-spray it in time on a sunny day after the rain. The re-spraying operation is the same as the initial spraying.

5. A method for delaying the flowering period of Korla fragrant pear according to claim 1 or 2, characterized in that, Korla fragrant pear is Korla fragrant pear that is over 7 years old.

6. A method for delaying the flowering period of Korla fragrant pear according to claim 5, characterized in that, Korla fragrant pear is a 7-50 year old Korla fragrant pear.

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