Agricultural Products Lists
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Breeding of Purple Marker male sterile Lines of Rice in Guangxi
Xianhong An and Zhihong A, two rice male sterile lines with purple leaf markers, were developed by a research group led by Liang Shirong, an excellent expert in Guangxi, and Deng Guofu, vice president of Guangxi Academy of Agricultural Sciences. On August 3, 2007, it passed the field technical appraisal organized by the Office of Guangxi crop Variety approval Committee. After strict field investigation and indoor microscopic examination, and listening to the technical report and answering questions of the research group, the expert group agreed that Xianhong An and Zhihong A had stable agronomic characters, stable sterility and flowering.
2019-01-16 -
Guangxi takes the lead in breeding three-line male sterile lines of aromatic red rice
Recently, the Science and Technology Department of Guangxi Autonomous Region organized relevant experts to carry out field technical identification on the wild sterile line Areca Red A bred by Xiangzhou Huangshi Rice Research Institute. After strict field investigation and indoor microscopic examination, and after listening to the technical report and answering questions of the breeder, the expert group identified that Areca Red A reached the standard of rice three-line sterile line, which was the first aromatic red rice three-line sterile line bred in China, with strong innovation. Areca red A has stable agronomic characters, stable sterility, good flowering habit, better rice quality and high resistance level
2019-01-16 -
What are the regions of rice production in Guangdong? What are the characteristics of each?
Guangdong Province is bordered by the Nanling Mountains in the north and the South China Sea in the south. Rice is grown in vast areas ranging from tidal fields at flat sea level to mountain terraces thousands of meters above sea level. Guangdong has a monsoon subtropical and tropical climate. The safe growth period of rice is 220-280 days in most places. The rice cropping season is long, such as early rice in Guangzhou, sowing in early March and harvesting in mid-July; typical late rice varieties are sown in late June, heading around October 10, and harvested in mid-November. The rainfall is abundant and the sunshine hours are long. All these conditions are beneficial to the growth of rice.
2019-01-16 -
Four Key Points about Rice Fertilization
First, pay attention to applying enough organic fertilizer. Organic fertilizer contains various nutrients, which can improve soil ventilation and fertilizer absorption and water retention characteristics, promote stable growth of rice plants, and obtain high yield and high quality. Organic fertilizer is mainly used as base fertilizer, 30 - 40 loads of decomposed soil fertilizer per mu, or 30 - 40 kg of cake fertilizer, and 40 - 50 loads of human and livestock manure can be applied before ploughing. Second, attention should be paid to controlling nitrogen fertilizer. Excessive application of nitrogen fertilizer in rice will not only cause increase of ineffective seedlings, turning green, lodging, intensification of diseases and insect pests, but also lead to more empty grains and lower seed setting rate, which will affect rice yield.
2019-01-16 -
Introduction to the four disadvantages of rice Honda management
The main results are as follows: 1. The soaking time of soil preparation is short, bumpy and enlarged, transplanting seedlings without soaking thoroughly, discharging salt and washing alkali is not thorough, it is easy to produce salt damage, which is disadvantageous to the growth and development of seedlings. 2. This year, there are many windy days, cloudy days and large temperature difference, which leads to the seedlings can not be ventilated normally, which is disadvantageous to slow down the seedlings after planting. 3. People are more afraid of water. Transplanting rice seedlings in deep water and deep water management are disadvantageous to raising ground temperature, taking root early, early seedling emergence and early tillering after transplanting. 4. The water storage in last winter and this spring has poor water quality and heavy soil salinity, which makes the living environment of rice disadvantageous.
2019-01-16 -
Guyou 14 (Rice)
Since Yuan Longping, the father of hybrid rice, bred hybrid rice in the 1970s, the second green revolution has taken place in the whole world. However, the seed production procedures of hybrid rice are complicated and the price is high. How to breed apomixis breeding rice with many false seeds in the market has become the dream of many breeders. Today, the apomixis rice bred by experts such as Chen Jiansan, a famous breeder of the Chinese Academy of Agricultural Sciences, has realized this wish. The most important characteristics of apomixis rice: in addition to the need for seed production year after year, but also made a great breakthrough in rice quality, yield and resistance.
2019-01-16 -
Occurrence and Control of main Rice Diseases and pests in Gejiu City
1. Rice planthopper 1. damage characteristics: Rice planthopper, also known as white mosquito, is a migratory pest with the characteristics of long-distance migration and outbreak. The common ones are gray planthopper and white-backed planthopper. It occurs in the rice area of the city, mainly harming rice, followed by wheat and corn, but also parasitic on grass and other Gramineae weeds. The adults and nymphs clustered to suck the sap on the base and leaves of the rice clump, and the injured part showed a long brown spot. In severe cases, the lower stem blackened and the whole plant withered. 2. Living habits: there are 4 generations in a year, from the end of April to the beginning of May.
2019-01-16 -
Plateau Japonica No. 2 (Rice)
The main results are as follows: (1) Variety source: Gaojing 2 is a new alpine japonica rice variety selected from the hybrid breeding material 7801-10-2 in seed Station of Yanyuan County. (2) characteristics: the variety has compact plant type, fertilizer resistance and lodging resistance, and green leaves. The whole growth period was 186-190 days, which was 5-7 days later than that of the control japonica 9. The plant height is about 100cm, the effective ear per mu is 26-290000, the ear length is 19cm, the ear has 108grains, the seed setting rate is about 73%, and the brown rice rate is 82.9%.
2019-01-16 -
Plateau Japonica No. 1 (Rice)
The main results are as follows: (1) Variety source: it is an alpine japonica rice variety, which was bred by seed Station of Yanyuan County, Liangshan Prefecture in 1978 from the intermediate material "7801-10Mui 2mi 39". (2) characteristics: the strain has compact plant type, raised flag leaves, green leaves and light green internodes, strong cold tolerance at seedling stage, strong growth, strong tillering ability and good color conversion in the later stage. The plant height is 90 cm and the whole growth period is 185 days, which is 4-7 days later than that of the control japonica 9. The ear is 17 cm long and the number of grains is 1.
2019-01-16 -
Successful research and development of high-efficiency and multi-purpose rice direct seeder
Recently, the "Multi-function soil-covering Direct seeding Machine Live demonstration meeting" organized by Rice Institute was held in Buqiao Village, Fuyang City, Zhejiang Province. More than 40 experts from home and abroad attended the live viewing meeting. In recent years, the rice transplanting technology of rice machine in China has developed rapidly, and a number of different types of rice transplanters suitable for rice production in China have been developed and produced. However, the development and research of rice direct seeding machine and machine direct seeding technology lags behind, and the mainstream rice machine direct seeding technology has not been formed. In order to overcome the problems of poor seedling growth, easy lodging, premature senescence and weeding difficulty in manual direct seeding of rice.
2019-01-16 -
Effect of High temperature and Heat damage on Rice production in Fanchang County and its Prevention and remedial measures
In the process of rice production, the most influential and difficult climatic factors are temperature and moisture. Reasonable irrigation can replenish and regulate water, but the temperature is difficult to control. It has a significant impact on the life of rice. Rice is the main crop in grain production in Fanchang County, which ranks first in terms of planting area and total yield. At present, the rice planting area in Fanchang County is about 16360 hectares (including multiple cropping index), of which medium indica rice is about 13191 hectares (mainly hybrid rice), early rice is about 1514 hectares, and double late rice is about 1655.
2019-01-16 -
Guard against the occurrence of rice sheath blight under high temperature and humidity
Sheath blight, also known as sheath blight, rice sheath blight has a great impact on its growth and development, not only weakening the absorption capacity of roots, but also affecting leaf photosynthesis, resulting in an increase in empty chaff grains, a decrease in 1000-grain weight and a decrease in yield. Therefore, attention should be paid to the prevention and control of sheath blight in production. The main symptoms, occurrence characteristics and control methods of this disease are introduced below for reference. The main symptoms of rice leaf sheath infection produce dark green water-immersed spots with blurred edges near the surface of the water, then expand in oval or moire shape, and grayish green in the middle.
2019-01-16 -
Four effects of High temperature on Rice
The temperature requirements of rice are different in each growth and development stage, and there is an optimal temperature. If the critical temperature exceeds the upper or lower limit, the growth and development of rice will appear abnormal phenomenon, that is, physiological obstacles. Therefore, attention should be paid to the effect of high temperature on rice. 1. Effect of high temperature on each growth stage of rice. 1. Heading and flowering stage. Generally, the temperature of 25-30 ℃ is suitable for rice at heading and flowering stage. A large number of empty grains will appear when the temperature is lower than 25 ℃ or higher than 30 ℃. At the same time, the high temperature
2019-01-16 -
Reference model of fertilization for high-yield rice
The soil formula fertilization model for rice yield 450~550kg per mu is as follows: (1) the total amount of fertilizer and the ratio of nitrogen, phosphorus and potassium to the proportion of fertilization should be about 1V 0.5 7kg, and the total amount is about N 10~13kg, 5 7kg of phosphorus pentoxide and 8~12kg of potassium oxide. (2) fertilization scheme 1 Base manure: (1) Organic fertilizer: general early rice applies fresh green manure 1000~2000kg or barnyard manure 500~1000kg per mu or commercial
2019-01-16 -
Panjin No.2, a High yielding Rice Variety
Panjin No. 2 (H148) was crossed with Jin300 grain in 1988 using the indica rice (IR36) consanguinity line 27 in our institute. After being stable, the new super-high-yield rice variety took part in the identification test in 1992, entered the variety comparison test in 1993, and began to be introduced to the outside world in 1995, which fully showed the characteristics of high yield, multi-resistance and high quality. 1. Characteristics 1. Seedling stage: strong seed germination, fast emergence, developed root system, strong seedling, resistance to low temperature and saline-alkali tolerance.
2019-01-16 -
Soil standard for high yield rice
The main results are as follows: (1) the profile is obvious, the plough layer is deep, and the depth of plough layer for high yield rice with good texture is about 20 cm, which requires that the plough layer is thick and soft, the content of aggregates is high, the structure and ventilation are good, and the tillage is suitable. The plough layer is too shallow, the rice root system is underdeveloped; the plough layer is too deep, it is easy to produce floating mud, which is not conducive to rice rooting and early development. The texture is moderate, but the sand is too sticky, the plough is not large when ploughing, it is easy to rake, the paste is not hardened when ploughing, the cracks are not opened when draining and lying in the sun, and the cracks are easy to close after rewatering. (2) Organic
2019-01-16 -
Gangyou 725 (Rice)
This variety was bred by Agricultural Science Research Institute of Mianyang City, Sichuan Province. The main characteristics of this variety belong to medium indica late-maturing three-line hybrid rice variety. The whole growth period is similar to that of Shanyou 63, with good yield, wide adaptability and susceptibility to rice blast. In the suitable area, this variety is suitable to be planted as one-cropping middle rice in Pingba and hilly areas of Sichuan and less than 1100 meters above sea level in Guizhou Province.
2019-01-16 -
Gangyou 22 (Rice)
Breeding units: crop Research Institute of Sichuan Academy of Agricultural Sciences and Rice Research Institute of Sichuan Agricultural University. Approval: it was approved by Sichuan crop Variety approval Committee in 1996, Guizhou crop Variety approval Committee in 1996, and the National crop Variety approval Committee in 1998. Variety approval number: national examination and approval rice 980009. Variety source: gang 46AXCDR22. Characteristics: medium indica late maturing hybrid rice. The plant height is about 110 cm, the plant type is moderate, and the stem
2019-01-16 -
Jinxing No. 1 (formerly codenamed 92mur10) (Rice)
Breeding unit: Tianjin Rice Research Institute. Approval: it was approved by Tianjin crop Variety approval Committee in 1996 and by the National crop Variety approval Committee in 2000. Variety approval number: national examination and approval rice 20000010. Variety source: Jin 521 / Zhonghua 8. Characteristics: large panicle and large grain japonica rice varieties. The plant type is compact, the plant height is 106 cm, the root system is well developed, and the stem is stout. The leaf color is dark green, the leaf is broad and thick, the function is long, the living plant is mature, the angle between the leaf and the stem is small, the plant is beautiful.
2019-01-16 -
Hongxiangjing rice
Variety source: from the Chinese Academy of Agricultural Sciences. Characteristics: growth period 130d, plant height 70cm, ear length 20cm, 1000-grain weight 30g, medium resistance to fertilizer and water, beige red, good taste and fragrance. The output can reach 300kg. Key points of cultivation: select medium and high fertilizer level plots, reasonable close planting, strengthen the application of phosphorus and potassium fertilizer, do a good job in the control of diseases and insect pests, do a good job in water layer management, and pay attention to the control of rice blast.
2019-01-16