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1.
Mixed rice     
According to analysis, a new type of grain mixed rice will sell well on the internal market. The mixed rice consists of general japonica and indica rice, and fragrant rice and waxy rice, etc. according to people with cer  相似文献   

2.
Paddy and Water Environment - Rice terraces located on sloped hills in mountainous areas are sometimes abandoned because of lack of labor and difficulties associated with cultivation. Recently,...  相似文献   

3.
It has been proved that high yield combinations can be obtained via hybridization between indica and japonica rice. However, people have worried about the quality of this kind of rice for a long time. Our researches were mainly based on the mating pattern of “japonica male sterile line/indica restorer line” to generate and select elite japonicalinous crosses. Ricequality is shown in table 1 and 2.  相似文献   

4.
5.
FAO, in collaboration with FEDEARROZ in Colombia and EMBRAPA / CNPAF in Brail, organized a workshop on the Establishment of a Coorperative Research Network on Hybrid Rice in Latin America and the Caribbean held from Mar 16 to 18, 1994 at EMBRAPA/CNPAF in Brazil. Dr MAO Changxiang,  相似文献   

6.
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.  相似文献   

7.
ShanxiblackriceItwasoriginallyfromYangCounty,Hanzhong Region.Thisricewasaworld_famousricevarietydevelopedin140BC.Ithadpitch_blacksurfacewiththeproteinandoilcontentsbeing6.8 %and20 %higherthanthatofcommonrice,respectively.Ithad15kindsofaminoacidsandmany…  相似文献   

8.
FragrantRice2:ThericeoriginatedfromChengguandYangxiancoun ties,ShaanxiProvince.Whencooked,itwasfragrantandwaseasytobedigested.Itwassuitableforoldandweakpersons.ZaocaiguRice:ItwasfromXinchengandTianhuatowns,Ding nanCounty,JiangxiProvince.Thericehadshor…  相似文献   

9.
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.  相似文献   

10.
MingshuiRice:ItoriginatedfromZhangqiuCounty,ShandongProvince.ThecharacteristicsofMingshuiRicewere:absorbingmorewater,swellingupgreatlyafterbeingsoaked,andbeing sticky andsmelling fragrantaftercooked.Lengshuibai:Itwasalsocalled"MaguRice"fromGushanTown,…  相似文献   

11.
WushanRice:ItgrewinhillylandaroundWuMountaininWangCity,HunanProvince.Itsgrainisbrightandtransparent,andthecookedriceissoft,sticky,fragrant,andsweetintaste.Itwasa"TributeRice"inoldtime.IndianIndica:Growing inWuchang City,HubeiProvince,itwasalsocalled"R…  相似文献   

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13.
Egg parasitoids, Anagrus spp. and Oligositaspp. have been found to be important biological agents in suppressing rice planthoppers in Asian countries. However, most of these studies have been confined to conditions within rice fields. In this study, field surveys were made to study the floral and faunal diversity in various habitats surrounding rice fields. The rice and grass (Echinochloa spp.) plants were infested with 2 gravid females of brown planthopper Toya spp. or T. pusanus per tiller respectively for two days. The oviposited plants were:1) Rice plants bearing BPH eggs, 2) grass plants bearing BPH eggs, 3) grass plants bearing Toya spp eggs, and 4) grass plants bearing T. pusanus eggs. Above plants were placed in the rice field, the grassy area adjacent to rice fields and the grassy area away from rice fields, respectively. Potted plants with host  相似文献   

14.
Negative phototropism of rice root   总被引:3,自引:0,他引:3  
Itisoftenbelievedthatthestemofhigher plantshascharacteristicsofpositive phototropism,andtherootshowsnophototropismornosensitiv itytolightthoughtherootofArab dopsiswasreportedpossessingchar acteristicsofnegative phototropism.Inthisstudy,adistinctnegative…  相似文献   

15.
Hybrid rice combination Xieyou 46 was first bred by combining CMS line Xieqingzao A with restorer line Milyang 46 at CNRRI in 1983. It can be used as single season or late season new indica hybrid rice combination. Having passed provincial level yield trials in the following years,  相似文献   

16.
From 1977 to 1987, new rice varieties Xiangkang 32xuan 5, Xiangzaoxian 3 and HA79317—4 were bred. They had resistance to bacterial blight (BB), rice blast (BL), brown planthopper(BPH), whitebacked planthopper (WBPH), with high-yielding and good rice quality.  相似文献   

17.
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.  相似文献   

18.
Liangyou-Peijiu (65002), an inter-subspecies hybrid, was bred in Jiangsu Acad of Agri Sci (JAAS) by two-line method. The female was a low-temperature-sensitive sterile line, Pei'ai 64s (japonica), and the male was 9311.  相似文献   

19.
Anther culture is wide|y used in rice improvement and genome research. It is useful for gene transformation to stabilize foreign gene(s) and estimate the integrated copy number.  相似文献   

20.
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  相似文献   

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