JP2020005559A - Cauliflower varieties with long scape - Google Patents

Abstract

To provide Cauliflower varieties that are soft and sweet, have no unpleasant taste, in addition have a large yield, and grow faster compared with conventional cauliflower varieties.SOLUTION: A Cauliflower variety is characterized by growing fast when grown under the same conditions as conventional cauliflower varieties, and by having a scape 1.2 times longer than flower bud of conventional cauliflower varieties.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a cauliflower variety having a long inflorescence (flower peduncle), a pale green outer leaf, and a standing growth.

A group of crops of the same species that genetically share a particular trait is called a cultivar. That is, even if they are the same kind of agricultural products, cultivation difficulty, resistance to disease and insect damage, yield, quality (texture / taste), etc., differ depending on the variety. For this reason, in agricultural crops, especially in major crops such as rice and wheat, varieties have been improved for a long time to obtain more excellent varieties.

One such crop is cauliflower (Brassica oleracea var. Botrytis), which is a vegetable improved from a variant of cabbage, and is known as a vegetable rich in nutrients such as vitamins and minerals.

In particular, aggregates of white buds (flower buds, hereinafter referred to as "cauliflower") formed on the head of a stem are used as ingredients for various dishes. Conventionally, varieties have been improved so as to produce flower buds suitable for each dish, and various varieties have been bred (see Non-Patent Document 1).

Yukihiro Fujime, "Convenience book for broccoli and cauliflower-Making good use of various varieties and varieties", published by the Agricultural and Fishing Village Association, November 10, 2010

However, variations in cuisine and taste preferences of human beings have changed with the times, and cauliflowers having more diverse characteristics have been demanded. In particular, in recent years, consumers who prefer soft, sweet and habit-free cauliflower have been increasing in number, but there was a problem that none of them satisfied the needs of such consumers.

At the same time, cauliflower producers wanted to produce cauliflower with the above characteristics, which grew quickly and had a large yield, but no cauliflower varieties with such characteristics existed. There was a problem.

The inventor of the present invention has continued to improve varieties with respect to the above-mentioned problems, and as a result, has succeeded in cultivating the following groundbreaking cauliflower varieties.

The first aspect of the present invention for solving the above-mentioned problem is that when cultivated under the same conditions as a conventional cauliflower variety, the growth is fast and the flower stem is 1.2 times larger than that of a conventional cauliflower variety. The cauliflower varieties are characterized by being longer.

Here, “conventional cauliflower varieties” include all known cauliflower varieties, for example, cauliflower varieties “Snow Crown” (registered trademark) and the like. In addition, the “stalk” refers to a portion from the root of the stem to the tip of the stem.

In the first embodiment, the plant grows faster and the inflorescence is 1.2 times or more longer than that of the conventional cauliflower variety, so that it can be harvested earlier than that of the conventional cauliflower variety. At the same time, the flower bud (cauliflower) becomes larger (for example, 1500 g or more). As a result, compared to the conventional cauliflower variety, the yield of cauliflower can be significantly increased for the same cultivation area. Here, the “plant” may be any of a plant (individual) and a part of the plant.

The second aspect of the present invention is the cauliflower variety according to the first aspect, wherein the cauliflower variety is a cauliflower variety specified by FERM BP-22366.

In the second embodiment, a cauliflower that is soft and sweet and has no peculiar taste can be obtained. In addition, the plant of this cauliflower variety has a pale green outer leaf, is slightly large, has a strong standing, and has heat resistance and disease resistance, compared to the plant of the conventional cauliflower variety. It has the characteristics that it grows quickly and is easy to grow. Moreover, the obtained cauliflower has a feature that it has a stronger sweetness as compared with that of the conventional cauliflower variety.

A third aspect of the present invention provides an individual of the cauliflower variety according to the first aspect, a progeny individual of the individual of the cauliflower variety according to the first aspect, an individual of the cauliflower variety according to the second aspect, and a second individual. In a surrogate individual obtained by crossing two individuals selected from the group consisting of progeny individuals of the cauliflower variety described in the above aspect. Here, the mating method is not particularly limited.

In the third aspect, a cauliflower of the cauliflower variety having the same characteristics as the cauliflower variety according to the first aspect and the cauliflower variety according to the second aspect can be obtained.

According to a fourth aspect of the present invention, there is provided a seed of the cauliflower variety according to any one of the first to third aspects.

In the fourth aspect, the cauliflower plant and the cauliflower of the cauliflower variety of any one of the first to third aspects can be easily obtained using the seed.

FIG. 1 is an external photograph of a flower bud of the present cultivar according to Example 1. FIG. 2 is a photograph of the flower stem of the present cultivar according to Example 1.

(Cauliflower variety according to the present invention)

As described above, the plant body of the cauliflower variety according to the present invention has a flower stalk 1.2 times or more longer than that of the conventional cauliflower variety, so that the flower bud is larger than the conventional cauliflower variety. It has the characteristic of becoming.

In addition, the cauliflower variety in the present invention is not limited as long as the plant body has the above-mentioned characteristics, but is larger than the cauliflower of the conventional cauliflower variety, and can be used to harvest a cauliflower having a sweet taste. Edible ones are preferred.

Furthermore, in the present invention, the cultivation conditions for comparison with the conventional cauliflower variety are not particularly limited, as long as they are the same cultivation conditions. As a cultivation condition, a general cauliflower cultivation method can be used.

In the present invention, the length of the flower stalk was compared in a state in which the flower stalk was elongated and the flower bud appeared loose after about 10 days after the flower bud was formed in the plant of the cauliflower variety according to the present invention. At the time.

In addition, unlike the cauliflower variety of the related art, the cauliflower variety according to the present invention is in a state in which the flower stem grows and the flower buds appear to be loose about 10 days after the flower bud is formed. The length of the flower stalk in that state is 1.2 times or more, preferably 2.0 times or more, longer than that of a conventional cauliflower variety. At that time, the length of the flower stalk is compared. As a specific example, for example, the comparison of the length of the flower stalk is performed within three days before and after the day of sowing, with the day of sowing being the first day.

The cauliflower variety of the present invention includes, for example, a cauliflower variety deposited under accession number: FERM BP-22366 or a progeny line thereof. The deposit information is shown below.
Type of deposit: International depositary institution name: National Institute of Technology and Evaluation Patent Microorganism Depositary Center Identification indication: SUPER SOFT 52
Date of Receipt: May 14, 2018

The progeny plant (progeny individual) in the present invention may be, for example, a plant (individual) obtained by inbred crossing or a plant (individual) obtained by backcrossing. The conventional cauliflower variety is not particularly limited, and examples thereof include a cauliflower variety “Snow Crown” (registered trademark).

The cauliflower plant of the present invention grows faster than a cauliflower plant having flower buds of a similar shape. For example, when compared with the cauliflower variety of the accession number: FERM BP-22331, the plant of the cauliflower variety according to the present invention attaches the flower bud as described above about 30 days earlier. Further, since the cauliflower varieties of the present invention have heat resistance, they can be sown about two months earlier (around August), for example, as compared with the accession number: FERM BP-22331.
Next, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to the following Examples.
(Example 1)

The cauliflower variety according to the present invention, which is deposited under FERM BP-22366 (hereinafter referred to as the "variety"), and a commercially available cauliflower variety "Snow Crown" (registered trademark; hereinafter referred to as "comparison variety"). And flower stem lengths were compared.

On July 1, three seeds for cell seedlings (trade name: Takii root winding prevention cell tray M type, manufactured by Takii Seed Co., Ltd.) are filled with cultivation soil (trade name: Tanaki Mushroom Soil, manufactured by Takii Seed Co., Ltd.) Then, each tray was sown with 200 seeds of the present variety and the comparative variety. Then, after raising each seedling according to the conventional method of raising seedlings of the cell molded seedlings, the length of the flower stem was confirmed. Two days after sowing, the plants were maintained in a constant temperature room at about 20 ° C., and then seedlings were grown in an agricultural greenhouse. Irrigation of the cultivation soil in the seedling raising tray was performed as follows.

In fine weather, it was performed twice a day enough to allow water to seep out of the bottom hole of the tray. The day length management was in a natural state, and the outside air temperature (July to December) was as shown in Table 1 below.

The results of confirming the length of the flower stalk 47 days after sowing are shown in Table 2, and a photograph of the appearance of the flower bud of the present variety at that time is shown in FIG. 1, and a photograph of the flower stalk of the present variety is shown in FIG.

As shown in Table 2, it was found that the flower stem of the present variety was 2.0 times longer than the flower stem of the comparative variety.

Further, as shown in FIGS. 1 and 2, it was found that the flower buds of the present cultivar seemed to have loosened flower buds with elongated flower stems. In addition, it was found that the weight of the flower bud was 1500 g, which was larger than the flower bud of the conventional cauliflower variety.
In addition, it was found that when the flower buds of the present varieties were eaten as they were (they were eaten raw), they were softer and sweeter than conventional cauliflowers.

The varieties were obtained from the cauliflower varieties owned by the applicant after selection and selfing for several generations. The breeding method used at the time of this breeding is a line breeding method using the progeny of the cross.

As described above, the cauliflower variety according to the present invention has a flower stem 1.2 times or more longer than the flower bud of the conventional cauliflower variety, and the flower bud is larger than the conventional cauliflower variety. In addition, the cauliflower variety according to the present invention has a cauliflower that is soft and sweet and has no peculiar taste. Therefore, by using the cauliflower variety according to the present invention, the yield of cauliflower per unit cultivation area can be increased, and as a result, the income of farmers can be increased.

Claims (4)

A cauliflower cultivar characterized in that when cultivated under the same conditions as a conventional cauliflower cultivar, it grows quickly and has a flower stem 1.2 times or more longer than that of the conventional cauliflower cultivar. The cauliflower variety according to claim 1, wherein the cauliflower variety is a cauliflower variety specified by FERM BP-22366. A plant of the cauliflower variety according to claim 1, a progeny individual of the cauliflower variety according to claim 1, an individual of the cauliflower variety according to claim 2, and a progeny individual of the cauliflower variety according to claim 2. A progeny individual obtained by crossing two individuals selected from the group consisting of A seed of the cauliflower variety according to any one of claims 1 to 3.