CN106212036A - A kind of method of the wild bean breeding progeny with corn intercropping plant - Google Patents

Abstract

The invention discloses a method for breeding offspring of wild soybeans intercropped with corn. The steps are: 1) selection of wild soybean breeding offspring materials, which must have the following characteristics: 1.1) weight of 100 grains is more than 7g; 1.2) growth period is within 100 days ; 1.3) has creeping and climbing characteristics; 1.4) the plant height is more than 1.8 meters; 1.5) the number of grains per plant is more than 120; 1.6) the pods do not crack after maturity; 1.5m above corn varieties with a growth period of 120-140 days; 3) sowing and cultivating corn, 25-35 days after corn sowing, when the corn seedlings are 20cm-40cm in size, sow the corn root with the characteristics of step 1) Wild soybean breeding progeny material, 1 soybean seedling after emergence; 4) Harvesting soybeans while harvesting corn. The invention makes the offspring material of wild soybean breeding with the characteristic of crawling and climbing to have utilization value; on the basis of basically not affecting the yield of corn, the invention increases the yield of soybean by about 80kg/mu.

Description

A method for breeding offspring of wild beans intercropped with corn

technical field

The invention belongs to a method for utilizing wild soybean breeding progeny, in particular to a method for wild soybean breeding progeny interplanted with corn.

Background technique

Wild soybean is the close ancestor species of cultivated soybean. It has excellent characteristics such as strong stress resistance, high yield and high protein. Good adaptability to the environment. At the same time, wild soybeans and cultivated soybeans have the same number of chromosomes. They are not only easy to hybridize but also have good fruiting performance. The genetic method of the hybrid offspring is similar to that of the hybrid offspring between cultivated soybean varieties. It is a rare thing in soybean breeding. The important genetic germplasm materials are favored and highly valued by breeding experts at home and abroad.

Breeding new soybean varieties by crossing wild soybeans with cultivated soybeans is a commonly used method of soybean breeding at home and abroad. to the breeder's elimination.

Contents of the invention

Aiming at the deficiencies in the above-mentioned prior art, the present invention provides a method for breeding offspring of wild soybean intercropped with corn, so that the breeding offspring material of wild soybean with creeping and climbing characteristics has utilization value.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A method for breeding offspring of wild beans intercropped with corn, the method comprising the steps of:

1) Selection of wild soybean breeding progeny materials, wild soybean breeding progeny materials must have the following characteristics: 1.1) 100-grain weight above 7g; 1.2) Growth period within 100 days; 1.3) Creeping and climbing characteristics; 1.4) Plant height above 1.8 meters ; 1.5) The number of grains per plant is more than 120; 1.6) The pod does not crack after maturity; 1.7) The character is stable and consistent;

2) Selection of corn variety: choose a corn variety with a plant height of 1.5m or more and a growth period of 120 to 140 days;

3) Carry out corn sowing and cultivation according to local customs. 25 to 35 days after corn sowing, when the corn seedlings are 20cm to 40cm, sow wild soybean breeding progeny materials with the characteristics of step 1) on the root of each corn plant, and leave behind soybean seedlings after emergence. 1 seedling;

4) When the corn is mature, the soybean is harvested at the same time as the corn is harvested manually or by using a corn harvester.

Compared with prior art, the present invention has following advantage:

1. A method for breeding offspring of wild soybean intercropped with corn, which makes the breeding offspring material of wild soybean with creeping and climbing characteristics valuable.

2. At the same time, compared with the traditional corn planting technology, the present invention increases the soybean yield by about 80kg/mu on the basis of basically not affecting the corn yield.

detailed description

A method for breeding offspring of wild beans intercropped with corn, the method comprising the steps of:

1) Selection of wild soybean breeding progeny materials, wild soybean breeding progeny materials must have the following characteristics: 1.1) 100-grain weight over 7g; 1.2) Growth period within 100 days; 1.3) Creeping and climbing characteristics; 1.4) Plant height over 1.8 meters ; 1.5) The number of grains per plant is more than 120; 1.6) The pods do not crack after maturity; 1.7) The traits are stable and consistent.

2) Selection of corn varieties: choose corn varieties with a plant height of 1.5m or more (the plant height of corn is 1.5m to allow soybeans to climb smoothly on the corn stalks, so that soybeans can be fully stretched), and a corn variety with a growth period of 120 to 140 days (is For the same growth period of corn and soybean).

3) Carry out corn sowing and cultivation according to local customs, 25 to 35 days after corn sowing, when the corn seedlings are 20cm to 40cm, sow the wild soybean breeding progeny material with the characteristics of step 1) on the root of each corn (sowing soybeans at this time) It is to make soybeans have a climbing object after emergence, so corn should be sown first. If sowing at the same time, the competition between soybeans and corn will be too fierce, which is not conducive to corn production, and may even kill corn seedlings). (You can't leave too many soybean seedlings here, otherwise too many soybean seedlings will entangle the corn and seriously affect the corn yield).

4) When the corn is mature, the soybean is harvested at the same time as the corn is harvested manually or by using a corn harvester.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (1)

1. one kind with the method for the wild bean breeding progeny of corn intercropping plant, it is characterised in that the method comprises the steps:

1) wild soybean breeding progeny material selects, and wild soybean breeding progeny material must possess following characteristics: 1.1) hundred Weight more than 7g；1.2) period of duration is within 100 days；1.3) there is climbing characteristics of crawling；1.4) plant height more than 1.8 meters；1.5) individual plant Several more than 120 of grain；1.6) scytinum after maturation；1.7) character stable and consistent；

2) corn variety selects: select more than plant height 1.5m, the period of duration corn variety of 120～140 days；

3) corn seeding and cultivation are carried out according to locality custom, after corn seeding 25～35 days, when maize seedling is at 20cm～40cm Time, in the sowing of every strain corn root, there is step 1) the wild soybean breeding progeny material of feature, Semen sojae atricolor stays Seedling 1 strain after emerging；

4) when Semen Maydis maturation, while harvesting corn, Semen sojae atricolor is gathered in the crops by artificial or use maize harvesting machine.