Wanmai 19 (formerly known as Wansu 8802)
Variety source Boai 7422 / Yumai 2
Breeding unit: agricultural Science Institute of Suxian County, Anhui Province
The characteristic is semi-winter. The seedlings are semi-creeping, the tillering ability is strong and the plant height is 85cm. Spike square, long awn, white shell. The grain is oval, white, hard, and the 1000-grain weight is 40g. Protein content 14.88%, wet gluten content 35.6%, sedimentation value 21.7ml. Resistant to stripe rust, slightly susceptible to powdery mildew, scab, leaf rust.
The yield showed that the average yield per mu was 383.7kg in the regional trials of Anhui Province in 1991 and 1992, which was 5.12% higher than that of Boai 7422, while that of Huanghuai South was 8.08% higher than that of Yumai 2, which was 8.08% higher than that of Yumai 2 in 1993 and 1994. in the regional trials of 1995 and 1996, the average yield per mu was 439.33kg, which was 8.88% higher than that of Lumai 14.
The key points of cultivation are suitable for sowing from October 5 to 25, and the basic seedlings per mu of high water and fertilizer land are 10-120000.
The suitable area has been examined and approved, which is in line with the national wheat variety approval standard. This variety is suitable for planting in the middle and high-grade water and fertilizer land in Huaibei of Anhui Province, south-central part of Henan Province and Xuhuai area of Jiangsu Province, paying attention to the suppression during the overwintering period, spraying dobutrazol strong stalk before plucking, and controlling sheath blight and scab as soon as possible.
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Cultivation techniques of Space Red Rice-Weihong Crystal Rice
Weihongjing crystal rice (approved name: Gan Wanxian 33), the only Weihongjing crystal rice in China, is a new high-quality red rice variety, which is a new high-quality red rice variety, which is a rice breeding expert, researcher Li Yuanxiang, together with the Institute of Genetics of Chinese Academy of Sciences, adopted 1000 seeds of genetically engineered rice "GER-3" for both middle and late indica, carried a recoverable satellite, selected its mutant after mutagenesis, and then selected it for 3 years. It is also the only red rice variety in space rice in China. After being introduced and planted in our base, the plant performed well and had no photosensitive and temperature sensitive response.
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Rice leaves and their functions
Rice leaves are composed of two main parts: leaf body and leaf sheath, as well as ear, ligule and other accessory organs. The place where the leaf sheath connects with the stem is called the leaf node. The place where the leaf sheath connects with the leaf body is called the leaf pillow. The first thing that grows when a seed germinates is the bud sheath, also known as sheath leaf, unearthed from the bud. The sheath leaf is different from other leaves. It is white and looks like a cylinder. The second leaf has only a leaf sheath and no leaf body, which is called an incomplete leaf. The leaf that begins from the third section has a leaf sheath and leaf body, which is called a complete leaf. Calculate the number of leaves of varieties
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