What are the purity breeding methods of pigeon pea germplasm?

Planted from March to June.

The planting specifications and sowing amount of pigeon pea per mu should be determined according to the variety, terrain and planting method of pigeon pea. In general: planting on flat land and gentle slopes, the sowing rate per mu is 100-150 grams, and 250-300 plants per mu; Planted on steep slopes, the sowing rate per mu is 85-135 grams, and 200 plants per mu are planted.

Under normal circumstances, it is better to plant in March and April, the cultivation soil is better, the water permeability is good, the air permeability is good, and the nutrients are sufficient, and the plant grows better and more vigorously.

Pigeon Pea is a lignified, erect, annual or perennial legume shrub and the only woody edible legume crop to date, hence the name "pigeon pea" (see below**).

Like soybeans, pigeon peas can be used to grind tofu, make soy milk, sprout beans, make soybean paste, make bean paste, and make pastries. Vermicelli made from pigeon peas is of better quality than mung beans. Fresh seeds and tender bean pods can be used as vegetables and taste like fresh peas.

Young leaves are also used as leafy vegetables or spices for seasoning, and mature seeds can sprout to be eaten as soups.

When the ground temperature reaches 20 before and after Qingming, you can sow pigeon peas, and the most suitable temperature for germination and emergence of seedlings is 25-35, and seedlings emerge 5-7 days after sowing.

Pigeon pea is mainly sown in holes, 3 seeds are sown in each hole, the hole spacing is 40-60 cm, the row spacing is 80 cm, and the seeds are kilograms per mu.

Pigeon pea is a legume shrub with many branches, which can grow up to 3-4 meters, which was introduced from India in our country and is now cultivated all over the country. The branches are fragile with small grooves and fine lines on the surface, and a layer of gray hairs on the surface. Its leaves are elongated, about 4-8 cm long and about 2-4 cm wide.

The blades are sharp at the tips and have fine hairs on both sides. The flowering time is around March to October, and the fruiting time is around March to May and August to September. At present, the market pigeon pea seeds ** in about 30-50 fast money a pound, growers should pay attention to the quality of the seeds while considering the **, customers can call Guanghan Garden to learn about the seeds of our garden, the quality of the product has a good reputation in the country.

Pigeon pea contains carotene and other substances in the body, which can protect our eyes, relieve eye fatigue, prevent myopia and other effects. At the same time, the carbohydrates can also replenish energy for us, and the rich calcium can also promote the development and growth of children's bones and prevent osteoporosis and other problems in the elderly.

Pigeon pea seeds.

Since 1957, there have been several reports of successful interspecific hybridization between Cajanus cajan and other species in the genus Pigeon Pea. In fact, many wild species of pigeon pea can be crossed with cultivated pigeon pea to bear fruit, and several breeders have used interspecific distant hybridization in their breeding programs. The following 10 species:

The offspring crossed and backcrossed with the core parents of pigeon pea are preserved at the International Crops Research Institute for the Semi-Arid Tropics. Therefore, the cultivated species of pigeon pea were classified as the first gene source, the other 10 species that could be successfully crossed with pigeon pea species were classified as the second gene source, and the species that could not be successfully hybridized with pigeon pea constituted the third gene source of pigeon pea (Table 10-10).

Table 10-10 Gene Sources of Pigeon Pea.

At present, the International Crops Research Institute for the Semi-Arid Tropics has preserved 6 genera and 47 species, including Pigeon Pea, a total of 270 wild relatives of Pigeon Pea, and evaluated the secondary gene source resources of Pigeon Pea, and has identified several desirable traits, including disease resistance, insect resistance and excellent nutritional quality. Among them, and resistance to sterile mosaic disease; Resistant to stem rot and can flower within 48 days; It is resistant to both stem rot and sterile mosaic disease. A distinctive feature of these wild species is the high protein content of the seeds.

The species with the highest kernel protein content is Da, while the average kernel protein content of pigeon peas is.

ICRISAT has successfully transferred high-protein genes from AND to pigeon pea cultivars through distant crossing. The most successful example of the use of wild species for pigeon pea improvement is through certification. Cajan's hybridization and multiple backcrosses resulted in male nuclear sterility and male nucleocytoplasmic interaction sterility lines in its offspring, thus making Pigeon Pea the world's first commercially produced hybrid leguminous plant in 1990.