JP2002065091A - Rice plant for appreciation and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a rice plant having unhulled rice of two colors of a purple color and a yellowish white color high in a utilization value as a rice plant for appreciation. SOLUTION: This method for producing a rice plant having purple unhulled rice and yellowish white unhulled rice is characterized in that a rice plant having a purple ear tip and a rice plant to cause hybrid sterility with the rice plant are hybridized and the obtained F1 hybrid individual is cultivated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to ornamental rice used as ikebana, dried flower and the like, and a method for producing the rice.

[0002]

2. Description of the Related Art Rice flowers are wrapped in shells called glue, and have considerably different shapes from general plants. This glea is
It continues to exist even after the end of pollination, and eventually becomes paddy covering the seeds. In most rice varieties currently cultivated, the color of the glue is green. However, some rice called ancient rice has a purple glue because it contains pigments such as anthocyan. Varieties such as "murasaki mochi" and "black mochi" are known as such rice.

[0003] Rice is a typical food crop cultivated for the production of rice, and some of them are used for appreciation as ikebana, dried flowers and the like. The above-mentioned purple rice varieties and “Saikai No. 209” and “Beniroman” grown by the Kyushu Agricultural Experiment Station are in high demand for food due to their unusual appearance, but are also attracting attention as ornamental rice. I have.

[0004]

As described above, rice varieties whose purple color is purple have a high utility value as ornamental rice. However, since the purple color fades with maturation of the glue, it is necessary to cut the ears immediately before maturation in order to obtain purple ears. In addition, since the obtained ear is also a purple single color,
It gives the impression that it is scarcely changed as an ornamental plant. An object of the present invention is to provide a rice plant having a higher value as an ornamental plant than existing ornamental rice plants.

[0005]

Means for Solving the Problems As a result of intensive studies to solve the above-mentioned problems, the present inventor crossed a rice plant having a purple glue with a rice plant which causes hybrid sterility, and The present inventors have found that by growing a hybrid individual, it is possible to obtain a rice plant having purple paddy and yellowish white paddy, thereby completing the present invention.

That is, the present invention provides a rice plant having a purple glue,
This rice is crossed with a rice that causes hybrid sterility and is obtained.
The present invention relates to a method for producing rice having purple paddy and yellowish white paddy characterized by cultivating F1 hybrid individuals. The present invention also relates to a rice plant having purple paddy and yellowish white paddy produced by the above method.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The rice for appreciation of the present invention is characterized by having purple paddy and yellowish white paddy. Purple means 7P 3.5 / 10.0, 3P 2.5 / 9.5, 7P 2.0 / 5.0 according to the JIS color chart.
Is the color specified by

[0008] Yellowish white is defined as 8 according to the JIS color chart.
Color specified by YR 7.0 / 6.5, 2Y 9.0 / 6.0, 2Y 7.5 / 6.0, etc. The ornamental rice plant of the present invention can be produced by crossing a rice plant having a purple glue with a rice plant that causes hybrid sterility and cultivating the resulting F1 hybrid individual. As the rice with purple glea, "PAZUMATAHAR
U "," IRAT4595 "," Murasaki Mochi "," Black Mochi "and the like.

[0009] The rice that causes hybrid sterility refers to a rice that has a sterility rate of 10% or more when crossed with a rice having a purple glue. The sterility rate is not particularly limited as long as it is within this range. The ratio of purple paddy to yellowish white paddy is adjusted by this sterility rate. That is, when producing rice with a high percentage of purple paddy, the mating parents are combined to increase the sterility rate. In such a manner that the sterility rate is reduced.

[0010] The method of crossing is carried out by removing the anthers of the seed parent immediately before flowering and pollinating the pollen of the flowering pollen parent. In addition, by using a male sterile line for the seed parent and a recovery line for male sterility for the pollen parent, a large amount of seeds can be produced. In the ornamental rice of the present invention, the color of the paddy after maturation is two colors, purple and yellow-white, but the color of the paddy before maturation is pure purple. Therefore, by harvesting before maturation, it is also possible to obtain purple-colored ears.

[0011]

[Example] [Example 1] In May 1998, the rice variety "PAZUMATAH"
ARU "and" IRAT 4595 "were seeded and transplanted into pots in June of the same year. The properties of “PAZUMATAHARU” and “IRAT 4595” are as shown in the table below.

[0012]

[Table 1]

[0013] In September of the same year, since both lines headed, "P
AZUMATAHARU was used as a seed parent, and "IRAT4595" was used as a pollen parent. The mating was carried out by cutting off the tip of the spikelet of the seed parent immediately before flowering with scissors, removing anthers by suction tweezers, and pollinating the pollen of the pollen parent flowered the next day. In October of the same year, F1 seeds (this F1 seed
1 ". ) Was harvested.

In May of the following year, 30 F1 seeds were sown in a nursery box and transplanted to a field in June of the same year. This F1 individual grew well, and heading was observed in September of the same year. The color of the spike is "PAZUM
ATAHARU "and the same purple color. After that, some mushrooms began to fade in purple as they matured and became yellowish white. Around October of the same year, a mixture of purple paddy and yellowish white paddy became available. The following table shows the abundance ratio of fertile seed, sterile rice, and colored (purple) rice per ear at this time. As a control, the abundance ratio of “PAZUMATAHARU” and “IRAT4595” in the seeds of the seeds are also shown.

[0015]

[Table 2]

Also, a photograph of "F98231", "F98231",
FIGS. 1 and 2 show photographs of the three members “PAZUMATAHARU” and “IRAT4595”, respectively. [Example 2] In the same manner as in Example 1, the rice line "PAZUMA
TAHARU ”(seed parent) and“ YS199 ”(pollen parent) were crossed, and the resulting F1 individuals (F98232) were cultivated. "YS19
Table 3 shows the properties and the like of "9". Also, "F98232", "PAZUM
Table 4 shows the percentages of “ATAHARU” and “YS199” of fertile, sterile, and colored (purple) rice.

[0017]

[Table 3]

[0018]

[Table 4]

Example 3 In the same manner as in Example 1, the rice lines “TOS MORI” (seed parent) and “IRAT 4595” (pollen parent) were crossed, and the F1 individual (F98296) obtained was cultivated. went. Table 5 shows the properties of "TOS MORI" and "IRAT 4595". In addition, “F98296”, “TOS MORI” and “IRAT 459
Table 6 shows the abundance ratio of 5 "fertile rice, sterile rice, and colored (purple) rice.
Shown in

[0020]

[Table 5]

[0021]

[Table 6]

Also, a photograph of "F98296", "F98296",
The photographs of "TOS MORI" and "IRAT 4595" are shown in FIGS. 3 and 4, respectively. Example 4 In the same manner as in Example 1, the rice line “IRAT 4
595 "(seed parent) and" Aichinokaori "(pollen parent) were bred, and the resulting F1 individuals (F98394) were cultivated.
Table 7 shows the properties of "Aitino Kaori". Also, "F9
Table 8 shows the abundance ratios of fertile, sterile, and colored (purple) paddies of “8394”, “IRAT 4595”, and “Aichinokaori”.

[0023]

[Table 7]

[0024]

[Table 8]

[0025]

Industrial Applicability According to the present invention, there is provided a rice having two colors of purple and yellow-white, which is highly useful as an appreciation rice.

[Brief description of the drawings]

Fig. 1 Photograph of rice line "F98231"

[Figure 2] Rice strains "F98231", "PAZUMATAHARU", "IRAT"
4595 "

Fig. 3 Photograph of rice line "F98296"

[Figure 4] Rice lines "F98296", "TOS MORI", "IRAT 459"
5 "photo

Claims (2)

[Claims] Claims 1. A rice plant having purple glue and a rice plant which causes hybrid sterility by crossing this rice plant with a rice plant which causes hybrid sterility, and cultivating the obtained F1 hybrid individual. How to produce rice. 2. Rice comprising purple rice and yellowish white rice produced by the method according to claim 1.