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New Cotton Variety--Jinmian 36
1. Breeding process: Jinmian No. 36 Department of Shanxi Academy of Agricultural Sciences cotton in 1994 with multi-resistant, wide fitness, high yield, high cotton and cotton 19 as female parent, and high-quality, insect-resistant product line 148 as a male parent, Years of crossbreeding, backcross breeding. In 1998, we planted plants in watersheds in diseased gardens, and in 1999, we participated in the water-resistant insect-resistant cotton-cotton ratio test. From 2000 to 2001, we participated in the regional trial of new varieties of cotton in Shanxi Province for the next two years, and participated in the new varieties of cotton in Shanxi Province in 2001-2002. The production demonstration was approved and named by Shanxi Province in March 2003. 2. Characteristics: Jinmian 36 is a medium-early-maturing variety with a growing period of about 124d. The plant towers are tight, plant height 80.5cm, leaf blade palmate small, dark green leaves, plant type handsome, good light transmission, seedling growth is slower, rapid development later, on the peach faster and concentrated. The first fruiting branch had 6-7 nodes, with short spacing of main stems and fruiting branches, reasonable distribution of leaf layers, strong bolls per plant, uniform distribution of bolls on upper and middle scales, boll-oval type, single boll weight 5.38 g, The clothing refers to 7.5g, the seed refers to 11.1g, the clothing is divided to 40.2%, and it is resistant to yellowing and wilt disease. It is easy to pick and pluck, and it is easy to pick. The cotton fluff is pure and silky. 3. Fiber quality: measured by the Cotton Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture from 2001 to 2002, Jinmian No. 36 has an average 2.5% crossover length of 29.4mm, a regularity of 83.9, a specific strength of 32.6cNtex-1, and an elongation of 7.5%. The clone value is 3.9, and the reflectance is 77.5, which meets the requirements of cotton for textile industry. 4. Insect resistance: According to the Institute of Plant Protection of China Cotton Institute in 2002, the second-generation bollworm bud beetle had a 25.59% mortality rate, which was 65.6% less than that of the control HG-BR-8. The third-generation bollworm had a survival rate of more than 3 instar larvae. The rate of larvae above 3rd instar was zero and evaluated as grade II. 5. Yield performance: In 1999, they participated in the pre-infestation test. Under the condition of not spraying insecticides against cotton bollworm, Jinmian No. 36 average pre-frost cotton was 868.9kg/hm2, which was 36.5% higher than that of the control Jinmian 26, ranking first among the tested varieties; In 2000, they participated in provincial cotton new varieties regional trials. According to six points, the average pre-frost lint was 1294.3kg/hm2, which was 23.57% higher than that of the control Jinmian 26, and continued to participate in the test in 2001. The average frost pre-frost lint at 7 points was 1435.5. Kg/hm2, increased production by 17.86% over Jinmian 26, 13.79% over Jinmian 31, and averaged 1365kg/hm2 after 13 pre-frost lints for 13 years, an increase of 20.71% over the control Jinmian 26, and increased production by 100%. . 6. Appropriate areas and cultivation points: 6.1 Suitable areas: The variety is suitable for medium fertility in the middle-maturing or middle-early-maturing areas in the Yellow River basin and Xinjiang cotton fields. The new cotton field plots and light green husbandry plants are more likely to increase their yields. potential. 6.2 Infiltration of water at the end of the infusion, seedling Miao Miao. Sandy land and loam land cotton fields are planted with water of 900-1050m3 per hectare within 10-15 days before sowing. Clay soils should be treated with 450-600m3 percolated headwater after sowing. The aim is to timely save water and improve water use. The ground temperature prevents the seed from becoming rotten at high humidity and low temperatures, resulting in difficulty in seedling emergence and the lack of seedlings. At the same time, attention should be paid to the timely removal of the soil on the ground wax and the open cultivator between the wax and the ground. 6.3 timely sowing. When the 5cm ground temperature stably passed 11°C or more for 5 days, the district was in the early April in April. When the local temperature stability passed above 14°C, it was the open season cotton planting period. Our district was in mid-April. 6.4 Proper planting and seedlings. Seed sowing time should be earlier than photon (sulfuric acid desilt) about 5 days, middle and high fertility above the cotton field, should simplify the cultivation, 37,500 per hectare, usually field 525-60,000, dry alkali and slope tillage cotton field 90,000 per hectare Strains. According to field seedling observation, the conventional varieties emerged 1-2 days earlier than the insect-resistant cotton seeds. The growth and development of the conventional varieties was slender and tall, and the leaves were large and light in color at the seedling stage. The top of the cotton was susceptible to insect damage. The five-leaf Ding Miao should be mastered for the Dingling and easy to unplug. Mixed Zhu, abnormal strains and non-insect resistant cotton strains. 6.5 Rational transport of water and fertilizer. More than 1500 kg hectares of lint production, the total amount of fertilizer pure nitrogen should reach at least 150 kg, P2O5 90 kg, K2O120 kg, N: P2O5: K2O should reach 1:0.6:0.8 or so. Pure nitrogen is required around 50kg per hectare. Together with the phosphorus and potassium fertilizer as a one-time application of the base fertilizer, the remaining nitrogen is combined with a watering bollard to apply water once. 6.6 Scientific pest control. Insect-resistant cotton is not a non-insect-free cotton. In addition to the timely prevention and treatment of cotton aphid, spider mite and other pests in the process of cotton growth and development, when three third-generation larvae of more than 100 instars of 10 bollworms are used, they are treated with pesticides.