Can a dual purpose plant be cultivated into a three line match?

The use of light and temperature sensitive sterile lines to develop hybrid rice has two advantages. The first is to exempt the maintainer line, which can be used to breed with the restorer line in the long sunshine in summer, and can reproduce itself in the autumn or in the spring of Hainan, and no longer needs to use the maintainer line to propagate the sterile line, so the hybrid rice prepared with the light and temperature sensitive sterile line is called two-line hybrid rice. The two-line method reduces the cost of seed production by reducing a link in the seed production process.

A large number of experiments have shown that more than 95 existing rice varieties can restore the fertility of the two lines of sterile lines, and only less than 5 varieties can restore the fertility of the three lines of sterile lines. It can be seen that the two-line method is much superior to the three-line method in terms of selecting excellent combinations.

Theoretically, yes, but there are no exceptions yet

It should be ok! I can't say the specifics!

Sterile lines, restorer lines, and maintenance lines.

The sterile line refers to the female S (RR) type of the male sterile line.

Restorer lines refer to fertile purebred n(rr) types.

The retainer system refers to the n(rr) type.

R is the fertile gene of the nucleus, R is the nuclear sterile gene, N is the cytoplasmic sterile gene, S is the cytoplasmic sterile gene, and the presence of both S and RR is the sterile line).

Sterile lines, restorer lines, maintenance lines.

The next Chinese-English conversion software is not enough.

Based on the behavior of the low-yielding plants, the offspring were evaluated (hybridized) according to the repeated yield comparison test.

On the basis of eliminating low yields, the results of breeding experiments of different types of the same amount were evaluated.

Seeds-.- So troublesome? Peppermint can be dug up in March and April, and the thick, white rhizome can be cut into a root segment about 8 cm long, which can grow new plants after about 20 days after being buried in the potting soil.

I guess I can, I don't know.

Not all tropical plants can be, mint has been listed in Beijing's major flower markets, which shows that mint can be cultivated [excluding the northeast and northwest regions].

Most plant seeds can be planted, but they will germinate only if the conditions are right, and it should be fine.

Clematis is a ranunculaceae, clematis plant, most of them are deciduous or evergreen grassy vines, about 1-2 meters, the stem is brown or purple-red, with 6 longitudinal stripes, the nodes are enlarged, two back and three compound leaves, the leaflets are narrowly ovate to lanceolate, the whole margin, and the veins are not obvious. A few are erect herbs. Compound leaves or only pure single leaves, often opposite.

The flowers are solitary or panicles, the sepals are large, petal-shaped, and the flower colors are blue, purple, pink, rose, purple, white, etc., and the female and stamens are major. The flowering period is from early spring to late autumn (there are also a few varieties that bloom in winter), and the fruiting period is summer. There are several species, varieties and their varieties and hybrids, which can be cultivated for garden ornamentation.

In addition, there is also the same name** "Clematis". It is known as the "Queen of Liana Flowers".

Luan is an arbor, up to 30 meters tall, that grows in calcium-based soils produced by limestone weathering, is not cold-tolerant, and is only found in the lower reaches of the Yellow River and Yangtze River basins in China, and is rare in the north of the Haihe River basin, nor can it grow in silica-based acidic red soil areas. Luan tree germinates late in spring and leaves fall early in autumn, so the annual growth period is shorter, the growth is slow, the tree shape is twisted and beautiful, and it is not very mature. Origins such as Jiangsu Changmei flowers, Anhui, Shandong, Henan, brother Shanzi Hebei and other places.

The octagonal gold plate, as the name suggests, refers to its palm-shaped leaves, with about 8 lobed leaves, which seem to have 8 horns. Its leaves are oily and verdant all year round, and the leaves are like green palms. It is shade-tolerant, often planted on the edge of rockeries or next to large trees in gardens, and can also be used as foliage plants for indoors, halls and venue furnishings.

1 I don't know what the vine is, 2 Luanshu, 3 Octagonal gold plate.

Therefore, in the systematic selection, combinatorial hybridization is used to generate new genetic variations to select excellent pure lines with different parental (line) characteristics.

In order to achieve the current development of pure lines with superior combinatorial characteristics in different parents, pure line selection is combined with crosses to generate new genetic species.

Therefore, the system was chosen to use hybridization to generate new genetic variants for the development of superior pureline combination characters in different parents.

Cherry blossoms and frangipani every day.

1. Sand cypress (it may also be juniper seedlings because the plant is more.)

for low). 2 Euphorbiaceae of the Intraday Sakura. 3 red car wood Rong.

1. It looks like a cedar tree.

2. It seems to be frangipani.

3. It seems to be a cow wood.