Virus-free Xushu 34
Xushu 34 was bred by Xuzhou Sweet Potato Research Center with Huabei 166 as female parent and Qunli 2 as male parent. The original line number is 81-29-34. It is a high-quality and early-maturing edible variety. Xushu 34 red orange meat with long spindle shape, good taste of cooking and raw food, has been packed in supermarkets in many places, and citizens also give it to their relatives and friends as a gift. Xushu 34 matures 20 to 30 days earlier than ordinary sweet potato varieties, can be on the market earlier, makes up for the market gap, and has high economic benefits, so it is especially suitable for the development of suburban areas. Virus-free Xushu 34 increased production by 60,104% over ordinary Xushu 34, with a general yield of 2000 kg per mu of spring potato and 1500 kg of summer potato per mu.
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Jimai 38
The variety is a semi-winter, mid-early maturing variety, white grain, oval type. The plant height is about 75 cm, the ear spindle type, the number of ears per mu is generally 45-500000, the number of grains per ear is about 36, the 1000-grain weight is about 38 grams, the protein content is about 13.9% (dry basis), the sedimentation value is 18.5ml, and the bulk density is 770Mel 790g / liter. Drought resistance, saline-alkali resistance, high resistance to stripe, leaf rust, resistance to powdery mildew. The yield per hectare is about 7200 kg, and the highest yield is 9465 kg / ha in Hebei, which is suitable for central Hebei.
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Morphological characteristics and Control techniques of Butterfly in ruled Rice
The straight-striped butterfly belongs to Lepidoptera, Butterfly family. The adult is 17-19 mm long and has a wingspan of 36-42 mm. The body and wings are dark brown with golden luster and the antennae are stick-shaped. There are 8 white translucent markings on the front wing and 4 white markings on the rear wing, which are arranged in a zigzag shape. The egg is hemispherical with a slightly sunken top and a hexagonal reticulation on the surface. It is light green at first birth and purplish red before hatching. The larvae are generally 5th instar. The head of the newly hatched larvae was black, the body was grayish green, and the color of the head gradually changed to light brown after the 2nd and 3rd instar. Body length of mature larvae
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