【摘 要】
：
Rice at heading stage is highly sensitive to persistent organic pollutants.High 1,2,4-trichlorobenzene (TCB) can affect photosynthesis and seed production, and consequently rice yield.Tolerance to hig
【机 构】
：
College of Life Science and Chemistry Engineering, Jiangsu Province Engineering Lab for Biomass Conv
论文部分内容阅读
Rice at heading stage is highly sensitive to persistent organic pollutants.High 1,2,4-trichlorobenzene (TCB) can affect photosynthesis and seed production, and consequently rice yield.Tolerance to high TCB stress can vary among different genotypes.In this study, two rice genotypes (Ningjing 1 and Yangfujing 8, which are TCB sensitive and tolerant, respectively) were exposed to different 1,2,4-TCB concentrations (0, 20, 40, 60 mg/kg) in soil culture.
其他文献
多鳞四指马鱼友(Eleutheronema rhadinum)是一种名贵经济鱼类,具有较好的养殖开发前景.为研究多鳞四指马鱼友不同地理群体的遗传多样性,本文应用AFLP技术分析了东海海域包括上海崇明水域(CM)、浙江舟山海域(ZS)、台湾高雄海域(GX)以及福建东山海域(DS)4个野生多鳞四指马鱼友地理群体的遗传特征和群体分化.利用9对引物组合对108份样品进行扩增,共扩增条带584条,多态性条带
许氏平鲉为西北太平洋重要的卵胎生海洋经济鱼类。本研究运用AFLP标记开展了许氏平鲉的9个群体共1 80个个体的遗传多样性和群体遗传结构研究。分析结果显示,许氏平鲉遗传多样性较高；AMOVA分析和群体间FST值的结果显示许氏平鲉在其分布范围内不存在显著的遗传结构,9个群体间的遗传分化水平均较低；基于Nei遗传距离构建的UPGMA树中没有检测到与采样地点相对应的分支,不存在明显的谱系结构；STRUCT
鲈鲤Percocypris pingi (Tchang)属鲤形目(Cypriniformes)、鲤科(Cyrinidae)、鲃亚科(Barbinae),主要分布在长江上游金沙江、雅砻江、岷江等水系.近年来,由于过度捕捞和水环境的破坏,鲈鲤野生资源急剧减少,该物种已被列为IUCN近危物种.目前,鲈鲤人工驯养繁殖已基本成功,人工增殖放流成为恢复其资源的途径之一.本研究采用微卫星分子标记,对分别采自雅砻
The Chedrina are one of the major groups among the Danioninae,diagnosed by the postcleithrum greatly reduced or absent,and postcleithrum perpendicular to ribs when present.Chedrins are distributed thr
Seed oil content (SOC) is an important agronomic trait in rapeseed (Brassica napus L.).Previous research showed cytoplasmic effect playing an important role on SOC in rapeseed.However, the underlying
巴西橡胶树(Hevea brasiliensis)是一种重要的产胶植物,也是热带、亚热带地区的重要经济作物.国内外研究者先后从橡胶树cDNA文库或其总基因组中克隆获得了近420种基因或cDNA,不仅工作量大而且无法确定其在橡胶树染色体上的位置和分布特点.利用分子标记技术构建的橡胶树连锁遗传图饱和度也不够,许多功能基因在染色体组上的连锁关系和位置都不清楚,直接利用分子标记辅助橡胶树育种难度较大.开展
Rice (Oryza sativa L.) is the staple food for more than half of the worlds population.Each year lots of new rice varieties are being developed and released with high yield, and high resistance to biot
Seed number per pod is one of the most important components of yield in rapeseed (Brassica napus L.).A new major quantitative trait locus (QTL) controlling seed number per pod was detected on chromoso
以扬麦11为材料研究了不同氮肥运筹对小麦的生育特点、产量与产量构成的影响，结果表明：随着后期穗肥氮肥使用比例的增加，小麦熟期推迟，全生育期延长，小麦成穗率呈逐渐上升趋势在总施氮量、基肥施用量相同的情况下，增加苗肥比例，小麦高峰苗数增加，最总成穗数也较高。前后期施肥比例为5：5～4：6时，小麦成穗率高，穗粒数多、最终产量较高。增加后期施氮比例，有利于减少无效分蘖，提高小麦成穗率，增加数穗粒数，可以获
Rice stem breaking resistance primarily depends on the basal culms qualities.The main objectives of this study were to investigate the correlation between the basal culms bending strength and the anat