Special rice in China

Jinbaoyin: It was from Shishang, Luokou, and Huitong towns, Ningdu County, Jiangxi Province. The hull was red-gold, the grain was white in color, slim in shape, and good in quality. It tasted fragrant and delicious.     

Special rice in China

ＳｈａｎｘｉｂｌａｃｋｒｉｃｅＩｔｗａｓｏｒｉｇｉｎａｌｌｙｆｒｏｍＹａｎｇＣｏｕｎｔｙ，Ｈａｎｚｈｏｎｇ Ｒｅｇｉｏｎ．Ｔｈｉｓｒｉｃｅｗａｓａｗｏｒｌｄ＿ｆａｍｏｕｓｒｉｃｅｖａｒｉｅｔｙｄｅｖｅｌｏｐｅｄｉｎ１４０ＢＣ．Ｉｔｈａｄｐｉｔｃｈ＿ｂｌａｃｋｓｕｒｆａｃｅｗｉｔｈｔｈｅｐｒｏｔｅｉｎａｎｄｏｉｌｃｏｎｔｅｎｔｓｂｅｉｎｇ６．８ %ａｎｄ２０ %ｈｉｇｈｅｒｔｈａｎｔｈａｔｏｆｃｏｍｍｏｎｒｉｃｅ，ｒｅｓｐｅｃｔｉｖｅｌｙ．Ｉｔｈａｄ１５ｋｉｎｄｓｏｆａｍｉｎｏａｃｉｄｓａｎｄｍａｎｙ…     

Special rice in China

ＦｒａｇｒａｎｔＲｉｃｅ２：ＴｈｅｒｉｃｅｏｒｉｇｉｎａｔｅｄｆｒｏｍＣｈｅｎｇｇｕａｎｄＹａｎｇｘｉａｎｃｏｕｎ ｔｉｅｓ，ＳｈａａｎｘｉＰｒｏｖｉｎｃｅ．Ｗｈｅｎｃｏｏｋｅｄ，ｉｔｗａｓｆｒａｇｒａｎｔａｎｄｗａｓｅａｓｙｔｏｂｅｄｉｇｅｓｔｅｄ．Ｉｔｗａｓｓｕｉｔａｂｌｅｆｏｒｏｌｄａｎｄｗｅａｋｐｅｒｓｏｎｓ．ＺａｏｃａｉｇｕＲｉｃｅ：ＩｔｗａｓｆｒｏｍＸｉｎｃｈｅｎｇａｎｄＴｉａｎｈｕａｔｏｗｎｓ，Ｄｉｎｇ ｎａｎＣｏｕｎｔｙ，ＪｉａｎｇｘｉＰｒｏｖｉｎｃｅ．Ｔｈｅｒｉｃｅｈａｄｓｈｏｒ…     

Special rice in China

ＷｕｓｈａｎＲｉｃｅ：ＩｔｇｒｅｗｉｎｈｉｌｌｙｌａｎｄａｒｏｕｎｄＷｕＭｏｕｎｔａｉｎｉｎＷａｎｇＣｉｔｙ，ＨｕｎａｎＰｒｏｖｉｎｃｅ．Ｉｔｓｇｒａｉｎｉｓｂｒｉｇｈｔａｎｄｔｒａｎｓｐａｒｅｎｔ，ａｎｄｔｈｅｃｏｏｋｅｄｒｉｃｅｉｓｓｏｆｔ，ｓｔｉｃｋｙ，ｆｒａｇｒａｎｔ，ａｎｄｓｗｅｅｔｉｎｔａｓｔｅ．Ｉｔｗａｓａ＂ＴｒｉｂｕｔｅＲｉｃｅ＂ｉｎｏｌｄｔｉｍｅ．ＩｎｄｉａｎＩｎｄｉｃａ：Ｇｒｏｗｉｎｇ ｉｎＷｕｃｈａｎｇ Ｃｉｔｙ，ＨｕｂｅｉＰｒｏｖｉｎｃｅ，ｉｔｗａｓａｌｓｏｃａｌｌｅｄ＂Ｒ…     

High-yielding rice in desert

A new technology,slip film in sand which could prevent water and nutrition losing from field wasdeveloped by Chinese scientists.By using this technology,water could be saved about 60％-80％,and the rice yield could reach 2000kg/ha more than that in traditional cultivation.On the thirdbig desert in China,Badan-Jilin,0.4 million ha desert has been transformed into good filed,yield-ing rice grain 15t/ha.     

Special rice in China

ＭｉｎｇｓｈｕｉＲｉｃｅ：ＩｔｏｒｉｇｉｎａｔｅｄｆｒｏｍＺｈａｎｇｑｉｕＣｏｕｎｔｙ，ＳｈａｎｄｏｎｇＰｒｏｖｉｎｃｅ．ＴｈｅｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆＭｉｎｇｓｈｕｉＲｉｃｅｗｅｒｅ：ａｂｓｏｒｂｉｎｇｍｏｒｅｗａｔｅｒ，ｓｗｅｌｌｉｎｇｕｐｇｒｅａｔｌｙａｆｔｅｒｂｅｉｎｇｓｏａｋｅｄ，ａｎｄｂｅｉｎｇ ｓｔｉｃｋｙ ａｎｄｓｍｅｌｌｉｎｇ ｆｒａｇｒａｎｔａｆｔｅｒｃｏｏｋｅｄ．Ｌｅｎｇｓｈｕｉｂａｉ：Ｉｔｗａｓａｌｓｏｃａｌｌｅｄ＂ＭａｇｕＲｉｃｅ＂ｆｒｏｍＧｕｓｈａｎＴｏｗｎ，…     

Trends in rice–wheat area in China

This paper provides new estimates of area planted to the rice (Oryza sativa L.)–wheat (Triticum aestivum L.) rotation in China by combining the results obtained from two methodologies. One methodology uses official statistics at the province-level for sown area of rice and wheat, which allows construction of annual estimates from 1979 to 2001. The other methodology uses remote sensing data and county level Agricultural Census data on sown area of 17 major crops, which allows for construction of one estimate appropriate for the middle of the 1990s. The first methodology suggests that the area planted to the rice–wheat rotation has declined sharply in recent years. A combination of the two methodologies results in an estimate of rice–wheat area in China in 2001 of 3.4 Mha. This is substantially below other figures in the literature that reach as high as 13 Mha. This estimate, and the reasons for its declining trend over time, is important for setting priorities in crop research and for understanding how farmers might react to possible new productivity-enhancing technologies.     

A development in rice cytology study

Professor GU Minhong et al,College of Agriculture,Yangzhou University,bred a primary tri-somics covered all 12 rice chromosomes,24 arm-paring end trisomics,and 14 secondary trisomicscovered 9 rice chromosomes by using the indica variety Zhongchan 3037.In the meantime,theymade systematic cytology and genetics identification for the trisomics.The successful breeding ofthe trisomics was important to develop the cytology and genetics study in China.It will promote     

Insecticide resistance selection in rice planthoppers

Ｂｒｏｗｎ ｐｌａｎｔｈｏｐｐｅｒ（ＢＰＨ，Ｎｉｌａ ｐａｒｖａｔａｌｕｇｅｎｓＳｔａｌ）ａｎｄｗｈｉｔｅ ｂａｃｋｅｄｐｌａｎｔｈｏｐｐｅｒ（ＷＢＰＨ，ＳｏｇａｔｅｌｌａｆｕｒｃｉｆｅｒａＨｏｒｖａｔｈ）ａｒｅｔｈｅｍａｉｎｉｎｓｅｃｔｓｏｎｒｉｃｅｉｎＣｈｉｎａ．Ｔｈｅｉｎｓｅｃｔｉｃｉｄｅｒｅｓｉｓｔａｎｃｅｏｆｔｈｅｔｗｏｐｌａｎｔｈｏｐｐｅｒｓｈａｖｅｏｆｔｅｎｂｅｅｎｒｅｐｏｒｔｅｄ．Ａｖａｉｌａｂｉｌｉｔｙｏｆｔｈｅｒｅｓｉｓｔａｎｔｐｏｐｕｌａｔｉｏｎｉｓａ ｐｒｅｒｅｑｕｉｓｉｔｅ…     

Pest insects of rice in China

In China, rice faces serious pest problem. About 347 pests attack rice plant in field, and 103 pests damage stored grain, powder and bran. Of those, at least 83 species can cause serious economic losses during rice production or storage. There exist four types of distribution of rice pests: 1. About 47.5% distribute over the south of the Qinling Mountain and the Huanghe River i.e. the South China rice cropping ares belonging to the Oriental region, e. g. Tryopryza incertulas (Walker). Catagella abjurella Walker, Chilo auricilia (Dudgeon), Susumia exigua Butler, Nephotet     

Effects of rice or wheat residue retention on the quality of milled japonica rice in a rice–wheat rotation system in China

In rice–wheat rotation systems, crop straw is usually retained in the field at land preparation in every, or every other, season. We conducted a 3-year-6-season experiment in the middle–lower Yangtze River Valley to compare the grain qualities of rice under straw retained after single or double seasons per year. Four treatments were designed as: both wheat and rice straw retained(WR), only rice straw retained(R), only wheat straw retained(W), and no straw retained(CK). The varieties were Yangmai 16 wheat and Wuyunjing 23 japonica rice. The results showed contrasting effects of W and R on rice quality. Amylopectin content, peak viscosity, cool viscosity, and breakdown viscosity of rice grain were significantly increased in W compared to the CK, whereas gelatinization temperature,setback viscosity, and protein content significantly decreased. In addition, the effect of WR on rice grain quality was similar to that of W, although soil fertility was enhanced in WR due to straw being retained in two cycles. The differences in protein and starch contents among the treatments might result from soil nitrogen supply. These results indicate that wheat straw retained in the field is more important for high rice quality than rice straw return, and straw from both seasons is recommended for positive effects on soil fertility.     

Introduction of Brazil upland rice in China

In 1992,the government of Brazil presented nine crop varieties to China.One of them is Brazil up-land rice IAPAR9.It was evaluated for commercial usage in China by China National Rice Re-search Institute(CNRRI).From 1993 to 1997,IAPAR9 was planted in Jiangxi Province in large area successfully.The     

Properties of the pigment in black rice

Pigment was extracted from pericarp of black rice variety Zixiangnuo. The effects of several factors, including pH, light, chemical reagents and foodstuff additives on the color, solubility and heat stability of the pigment were observed. The color of the pigment varied with different acid conditions. When the pH was below 3, a stronger absorption peak at 495nm was observed. If the pH was between 3 and 10, there was a platform in 400-495nm. No obvious absorption peak in visible light region was found when pH was above 10. As the pH increased, the color of the pigment changed, from deep red to light red until to yellowishbrown, e.g. pH 0-2, deep red; pH3-4, red pH5-6, quite red; pH9-10, faint red; pH11, faint brown yellow; pH12, light brown yellow; pH13, yellowish brown; pH14, deep yellowish brown. The change of color was reversible. The pigment was quite stable under nature light conditions. At pH 1, it was basically unchanged within 10 d under sunlight or within 60 d under indoor nature light. However,     

Carbonized rice excavated in Henan Longshan Culture

The Carbonized rice was discovered at Lilou Village, Ruzhou City, Henan Province in 1993 by scientists of Archaeology Inst, Henan Acad of Social Sciences. The excavations of which are nearly 4,000 years oldshowed by the ^14C-detect.     

Conditional genes for grain yield in rice

Grain yield in cereal crops was an eternal theme. The number of panicles per plant (PN), filled spikelets per panicle (FSP), and 1000-gram weight (TGW) were the three important yield components. Some QTLs for rice yield had been mapped, but conditional QTLs for grain yield had not been analyzed. Phenotypic values of yield traits, which had no influence on the given components, were used for QTLs conditional analysis. This study was to uncover conditional QTLs for rice yield in a RIL population, and to search for evidences on the genetic basis of yield QTLs.