Introduction to Santyo 2

1. Features

Sangteyou 2 is a triploid hybrid mulberry variety. The seeds are coarser, with a thousand-grain weight of about 2.25 grams. The tree is tall, straight branches, more clockwork, tall branches, medium thick, straight, greenish-grey-brown skin, pitch 3.9~4.9 cm, 1/2 leaf sequence, lenticels oval or round, medium Size, medium density, winter buds are equilateral triangle, sharply separated, grayish brown in color, with accessory buds but not many. The leaf shape is broad and heart-shaped, dark green in color, and relatively flat. The tip of the leaf is mostly short-tailed and sharp, but some are double-headed and blunt, and the edge teeth are papillary teeth of medium size. The leaf surface is smooth, wrinkled or slightly wrinkled, and has strong luster. The leaf ecology is mostly flat, the petiole is medium-long, and the leaf base is shallow and heart-shaped. The top buds and young leaves of the new shoots are brownish green in color and thicker. The leaves are large and thick, with a leaf length × leaf width of 30.9 cm × 28.0 cm, a single leaf weighing approximately 12.2 grams, and a 100 cm 2 leaf weighing 3.0 grams. The female and male flowers of the plant are about half each.

Variety source

Guangxi Zhuang Autonomous Region Sericulture Technology Extension Station, 7862×Guiyou P58, 7862 was introduced from the Institute of Sericulture, Guangdong Academy of Agricultural Sciences; Guiyou P58 was induced with colchicine (Huachang2//Taiwan Qingpi/Lun 109) F1 A tetraploid variety bred by doubling the chromosomes.

Yield performance

From 2002 to 2006, regional trials were carried out at 5 sites in southern Guangxi, central Guangxi, and western Guangxi, and production and application trials were carried out in 8 counties. After 3 years of investigation, the leaf yield per mu in the first year of production was 1698.5~2173.6 kg, an average of 1838.1 kg, which was 15.40% higher than the control Sha 2×lun 109; the second year of production entered the high-yield period, and the leaf yield per mu was 2734.2~4311.8 kg. , An average of 3600.8 kg, an increase of 19.65% than the control Sha 2 × Lun 109; the third year of production, the leaf yield per mu is 3123.4 ~ 4047.8 kg, an average of 3666.6 kg, an increase of 24.10% than the control Sha 2 × Lun 109. The leaf quality is better. The yield of 10,000 heads of cocoon layer of silkworm rearing in spring leaves is 5.29% higher than that of the control Sha 2×lun 109, the yield of four-instar 100 kg leaves is 4.71% higher than that of the control Sha 2×lun 109, and the yield of four-instar 100 kg leaves is increased. The yield of cocoon layer is 8.44% higher than that of the control Sha 2×lun 109; the yield of 10,000 heads of cocoon layer of autumn leaf sericulture is 1.63% higher than that of the control Sha 2×Lun 109, and the yield of cocoon layer per hundred kilograms of leaves is 1.57 higher than that of the control Sha 2×Lun 109. %.

2. Cultivation points

Use seeds to propagate. The seedlings can be planted first and then transplanted to build a garden, or they can be broadcast live to form a garden. Suitable for dense planting, planting 5000~6000 trees per mu. The annual harvesting of leaf-based mulberry orchards are harvested once a year in summer and winter. The height of raw branches is 30-50 cm), which promotes early and fast growth of winter buds, increases yield and leaf quality, and can also prevent mosaic disease. With large leaves, it is suitable for harvesting mulberry leaves and raising silkworms by picking slices of leaves. It is also suitable for mulberry harvesting (that is, cutting branches and leaves) and raising silkworms. Mulberry gardens should use more organic fertilizers and timely topdressing to promote luxuriant foliage and high yield performance.

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Santeyo 2