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Breeding of commercially acceptable allelopathic rice cultivars in china

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Breeding of commercially acceptable allelopathic rice cultiv...

中国第五届植物化感作用学术研讨会

作者： KONG Chui-Hua 1 ,CHEN Xiong-Hui 2,HU Fei 2,ZHANG Song-Zhu 1 1 college of Resources and Environmental Sciences,china Agricultural University,Beijing 100193,china 2 college of agronomy,South china Agricultural University,Guangzhou 510642,china

One promising area of paddy weed control is the potential of exploiting the weed suppressing ability of *** study was conducted to develop commercially acceptable allelopathic rice cultivars using crosses between allelopathic rice variety PI312777 and commercial Chinese cultivars (N2S,N9S,Huahui354,Peiai64S and Tehuazhan35) and assessing their weed suppression and grain yield in paddy fields in relation to their ***,there was a positive dominance in the crosses Huahui354×PI312777 and N2S×PI312777 but recessive or negative dominance in N9S×PI312777,Peiai64S×PI312777 and Tehuazhan35×***354×PI312777 and N2S×PI312777 showed stronger weed suppression than their parents and other ***,a F8 line with an appearance close to Huahui354 and a magnitude of weed suppression close to PI312777 was obtained from Huahui354×*** line named Huagan-3 was released as a first commercially acceptable allelopathic rice cultivar in *** grain yield and quality of Huagan-3 met the commercial standard of the local rice ***-3 greatly suppressed paddy weeds although its suppressiveness was influenced by year-to-year variation and plant *** was not a certain yield reduction in Huagan-3 even under a slight infestation of barnyard grass in paddy *** of breeding Huagan-3 with high yield and strong weed suppression may be implemented into present rice production systems to minimize the amount of herbicide used.

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Comparison of two protein extraction methods for proteomic analysis of chlorophyll-deficient mutants in Brassica Juncea L.

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Comparison of two protein extraction methods for proteomic a...

第十一届全国植物基因组学大会

作者： Rui Zhang~1,Haiheng Liu~2,Huixian Zhao~(1*),Shengwu Hu~(2*) 1 college of Life Sciences,Northwest A & F University,Yangling Shaanxi 712100,china 2 college of agronomy,Northwest A & F University,Yangling Shaanxi 712100,china

Total proteins were extracted from leaves of Brassica juncea *** five leaves period with two different protocols,TCA/acetone extraction method and polyethylene glycol fractionation method. Then the samples were analyz...

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Transient transfection of Eimeria tenella using yellow or red fluorescent protein as a marker and successful expression of yellow fluorescent protein in Toxoplsma gondii using promoters derived from ***

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Transient transfection of Eimeria tenella using yellow or re...

The 15th World Veterinary Poultry Congress

作者： Lili~1 Hao Xianyong Liu~1 Xiaoyan Zhou~1 Jidong Li~2 Jun Zhou~1 Xun Suo~(1*) 1.Parasitology Laboratory college of Veterinary Medicine china Agricultural University Beijing 100094 china. 2.college of agronomy Ningxia University Yinchuan 750021 china

＜正＞Transgenic technique is a new tool in studying the cell biology,which has been explored successfully in apicomplexan parasites such as Toxoplasma gondii and Plasmodium ***,due to the difficulties such as in vitro culture,it is still a great challenge for transfection of Eimeria tenella,a major apicomplexan agent

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不同供氮水平对水稻/花生间作系统中氮素行为的影响

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土壤学报 2004年第5期41卷 789-794页

作者：褚贵新沈其荣王树起南京农业大学资源环境学院植物营养系

水稻旱作 /花生间作栽培是一种新兴的节水农业技术。用1 5N稀释标记法在盆栽条件下研究了间作系统在 1 5kghm-2 、75kghm-2 和 1 5 0kghm-2 3个氮素供应水平条件下花生生物固氮以及水稻旱作 /花生间作系统中氮素的转移 ,同时用1 5N的富... 详细信息

水稻旱作 /花生间作栽培是一种新兴的节水农业技术。用1 5N稀释标记法在盆栽条件下研究了间作系统在 1 5kghm-2 、75kghm-2 和 1 5 0kghm-2 3个氮素供应水平条件下花生生物固氮以及水稻旱作 /花生间作系统中氮素的转移 ,同时用1 5N的富积标记法研究了花生根系腐解对间作系统氮素转移的贡献。结果表明 ,在 1 5和 75kghm-2 2个氮素水平下 ,间作水稻比单作水稻的干物质量分别增加了 2 3.5 %和1 2 .2 %,在p=0 .0 5的水平有显著差异。间作水稻和单作水稻的氮素吸收量分别为 1 35、1 4 3mg株 -1 和 1 1 7、1 31mg株-1 ,分别比单作增加 1 4 .8%和 8.8%。不同栽培方式对花生的干物质积累和氮素吸收影响很小。在 3个氮素水平下间作花生和单作花生的固氮量分别为 76 .1 %、5 3.3%、5 0 .7%和 72 .8%、5 6 .5 %、35 .4 %,在低氮水平下的生物固氮显著高于高氮条件 ,间作对花生的生物固氮有一定促进作用。间作系统中的氮素转移率和转移量在 3个氮素水平分别为 1 2 .2 %、9.2 %、6 .2 %和 1 6 .3、1 3.0、1 0 .4mg株 -1 ,氮素的转移率和转移的数量显著地随氮素水平的增加而减少。用1 5N花生叶片标记直接证明了氮素从花生体内向水稻的转移 ,随刈割时间氮素转移量显著下降 ,表明花生根系腐解对间作系统的氮素转移有积极?

关键词：供氮水平水稻花生间作系统氮素行为

THE STUDIES ON THE INDUCED DNA VARIATIONS BY HIGH TEMPERATURE AND INSECTICIDE IN MACROSIPHUM AVENAE

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THE STUDIES ON THE INDUCED DNA VARIATIONS BY HIGH TEMPERATUR...

The ⅩⅤth International Plant Protection Congress

作者： ZHAO Hui-yan1 YAO Jian-xiu1 and ZHANG Jian-hua2 1college of Plant Protection Northwest Sci-Tech University for Agriculture and Forecast Yangling Shaanxi 712100 china 2college of agronomy Xinjiang Shihezi University Xinjiang china

Morphological and Chemical Variation of Prunella vulgaris Populations from Different Locations in china

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Chinese Herbal Medicines 2010年第4期2卷 -页

作者： LIAO Li1, 2, LIU Li1, GUO Qiao-sheng1, WANG Zhi-yong2, CHEN Yu-hang1 1. Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210059, china 2. agronomy college, Hainan University, Danzhou 571737, china Institute of Chinese Medicinal Materials Nanjing Agricultural UniversityNanjing 210059China agronomy college Hainan UniversityDanzhou 571737China Institute of Chinese Medicinal Materials Nanjing Agricultural UniversityNanjing 210059China agronomy college Hainan UniversityDanzhou 571737China

Objective To investigate the variation of chemical characteristics with environmental factors and establish a relationship between morphological characters and chemical composition of Prunella vulgaris collected in different areas of china. Methods Twelve phenotypic traits and three chemical compositions were assessed in 28 populations of P. vulgaris collected from different locations in china. Results The variability ranges observed at phenotypic and chemical levels were polymorphic. According to the morphological traits, 28 populations of P. vulgaris could be grouped into six clusters, and two morpho-types could be clearly distinguished. Perceptible differences could be discerned in the plant height, leaf length, corolla length, calyx length, fruiting spikes length, and maturity period. Based on three kinds of components including ursolic acid, total flavonoids, and total polysaccharides, all populations could be identified as four types. Cluster IV showing high content of ursolic acid, total flavonoids, and total polysaccharides could be utilized to develop superior derivatives. Conclusion The variation of chemical characteristics is influenced by the genetic and environmental factors, such as soil, climate, longitude, and altitude. It provides a solid basis for efficiently evaluating qualities and establishing good agricultural practices for P. vulgaris.

关键词： morphology polymorphic variation populations Prunella vulgaris

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硼对小麦体内碳水化合物同化与运输的影响

土壤学报 2003年第3期40卷 440-445页

作者：严红李文雄郭亚芬刘大森大连大学环境科学系大连116622 东北农业大学农学院哈尔滨150030

用溶液培养及14 C标记等方法研究硼对小麦体内碳水化合物的同化与运输的影响。结果表明 :( 1 )无硼 (B0 )和严重缺硼 (B0 .3)处理茎秆水溶性糖的含量高 ,不是由于缺硼而导致的糖分运输受阻 ,而是对雄蕊结构异常的一种适应 ,造成糖在茎... 详细信息

用溶液培养及14 C标记等方法研究硼对小麦体内碳水化合物的同化与运输的影响。结果表明 :( 1 )无硼 (B0 )和严重缺硼 (B0 .3)处理茎秆水溶性糖的含量高 ,不是由于缺硼而导致的糖分运输受阻 ,而是对雄蕊结构异常的一种适应 ,造成糖在茎秆的积累。 ( 2 )无硼影响小麦总糖的积累 ;营养生长阶段缺硼不影响总糖的积累 ,生殖生长阶段影响总糖的积累 ,主要表现为籽粒不能形成 ,糖的积累降低。

关键词：硼小麦碳水化合物同化运输

全程与阶段性非充分灌溉条件下水稻的生长及部分生理反应

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土壤学报 2004年第4期41卷 641-644页

作者：钱晓晴沈其荣王娟娟周明耀柏彦超杨建昌南京农业大学资源与环境科学学院南京210095 扬州大学农学院江苏扬州225009 扬州大学水利与建筑工程学院江苏扬州225009

有关水分胁迫改变水稻生长形态、组织结构与生理代谢方面的研究已有不少报道,但试验结果间颇有差异[1-9].在以往水分胁迫的植物效应研究中,往往只讨论水分胁迫处理本身对试验结果的影响,较少涉及处理前水稻生长环境的影响.至今尚未见有... 详细信息

有关水分胁迫改变水稻生长形态、组织结构与生理代谢方面的研究已有不少报道,但试验结果间颇有差异[1-9].在以往水分胁迫的植物效应研究中,往往只讨论水分胁迫处理本身对试验结果的影响,较少涉及处理前水稻生长环境的影响.至今尚未见有作物对全程和阶段性非充分灌溉反应差异的试验报道.本研究拟通过作物体对水分胁迫较为敏感的叶片水分含量、叶绿素含量和丙二醛(MDA)含量、根系活力、叶片气孔阻抗和光合速率等指标进行测定,探讨抽穗后(即阶段性)与全程非充分灌溉影响水稻产量形成的差异及其生理机制,为发展水稻节水栽培技术提供理论依据.……

关键词：非充分灌溉水稻生长组织结构生理代谢水分胁迫

Characterization of a slcd mutant simultaneously affecting seed and leaf color

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Characterization of a slcd mutant simultaneously affecting s...

第十三届全国植物基因组学大会

作者： Lili Zhang~1,Xiaohong Yang~1,Guanghong Bai~2,Jianbing Yan~(1,3),Jiansheng Li~(1*) 1 National Maize Improvement Center of china,china Agricultural University,Beijing 100193, china 2 agronomy college,Xinjiang Agricultural University,Urumqi 830052,Xinjiang,china 3 National Key Laboratory of Crop Genetic Improvement,Huazhong Agricultural University, Wuhan 430070,china

Mutant,an important material for both classical genetics and functional genomics research,plays a significant role in the functional annotation of genes and the interpretation of biochemical and metabolic pathways in *** this study,a seed color mutant of maize,slcd(seed and leaf color defective),was identified naturally in a line in Zong3×Yu87-1 recombinant inbred line *** mutation is

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