ⅱ you 92-4 (Rice)
The main results are as follows: (1) Variety source: this variety is a new late-maturing hybrid rice combination of Neijiang Hybrid Rice Development Center, Sichuan seed Station, Leshan Science Institute Ⅱ-32A and restorer line 92-4.
(2) characteristics: the whole growth period is 152days, which is 4.1days longer than that of Shanyou 63, plant height 118cm, ear length 25cm, ear flat grain 141, fruiting 85%, 1000-grain weight 28% g. Cold tolerance at seedling stage, dark green leaves, prosperous growth, strong tillering ability, compact plant type, erect flag leaves, high panicle rate and good yellowing in the later stage. The rate of brown rice is 79.8%, the rate of milled rice is 70.4%, and the quality is better than the control. The neck plague was grade 0-5, and the resistance was stronger than that of the control.
(3) yield performance: the average yield per mu was 569.31 kg per mu in the provincial trial from 1995 to 1996, which was 3.64% higher than that of Shanyou 63. In the production test, the average yield per mu was 584.64 kg, which was 11.65% higher than that of Shanyou 63.
(4) the key points of cultivation: the suitable sowing date is from late March to April 5th, the seedling age is 40-45 days, 1.2-15000 nests per mu, heavy application of base fertilizer, early topdressing, reasonable combination of nitrogen, phosphorus and potassium, medium fertilization level, effective panicle 15-190000 per mu.
(5) suitable planting areas: suitable for planting in central and western Sichuan ecological regions.
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ⅱ Youming 86 (Rice)
Variety source: medium indica hybrid combination of Ⅱ-32A × Minghui 86 used by Fujian Sanming Institute of Agricultural Sciences. Examination and approval: approved by the National Agricultural Variety approval Committee in 2001. Characteristics: the combination has a plant height of 100-115 cm, moderate plant type, medium tillering ability, luxuriant growth, straight leaves, large spikes, about 160 grains per panicle, seed setting rate of more than 80%, 1000-grain weight of 28 grams, general yield of about 550 kg per mu and medium rice quality. The whole growth period is 146 days, which is better than Shantou.
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ⅱ you 92 (Rice)
Breeding unit: agricultural Science Research Institute of Jinhua City, Zhejiang Province. Approval: approved by Zhejiang crop Variety approval Committee in 1994, Anhui crop Variety approval Committee in 1998, and the National crop Variety approval Committee in 1999. Variety approval number: national examination and approval rice 990019. Variety source: Ⅱ-32A//IR209/ test 64Mel 7. Characteristics: temperature-sensitive hybrid medium indica varieties. The plant height is about 90 cm and the plant type is compact.
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