作物学报
论文题目：抗纹枯病、赤霉病的转TaPIEP1基因小麦的分子鉴定与选育
全部作者： 刘欣1,蔡士宾2,张伯桥3,周淼平2,路妍1,吴继中2,杜丽璞1,李斯深4,臧淑江3,张增艳1,*
期刊名称：作物学报 2011年第7期
论文摘要：小麦纹枯病（主要病原为禾谷丝核菌）和赤霉病（主要病原为禾谷镰刀菌）已成为我国小麦生产的重要病害。TaPIEP1是从小麦中分离到的1个病原诱导的基因，其编码蛋白是可与GCC-box顺式元件结合、转录激活型的ERF转录因子。本研究以8个转TaPIEP1基因小麦....[查看全部]
下载频数：7 上传时间：2014-03-17
加入收藏
论文题目：大豆幼苗根系性状的QTL分析
全部作者： 周蓉,陈海峰,王贤智,伍宝朵,陈水莲,张晓娟,吴学军,杨中路,邱德珍,江木兰,周新安*
期刊名称：作物学报 2011年第7期
论文摘要：为研究大豆幼苗期根系性状的遗传规律，以中豆29和中豆32构建的RIL群体为材料，在V2期测定水培幼苗根系性状（主根长、侧根数、根重、根体积和根冠比等）及相关性状（株重、茎叶重和下胚轴重等），以方差分析方法估算遗传参数，并采用复合区间....[查看全部]
下载频数：6 上传时间：2014-03-17
加入收藏
论文题目：影响水稻穗部性状及籽粒碾磨品质的QTL及其环境互作分析
全部作者： 胡霞1,石瑜敏2,**,贾倩1,徐琴1,王韵1,陈凯1,孙勇1,朱苓华1,徐建龙1,*,黎志康1,3
期刊名称：作物学报 2011年第7期
论文摘要：利用优质恢复系测258为轮回亲本与粳型糯稻新品系IR75862杂交创制的BC1F7回交导入系群体，在广西南宁和海南三亚定位了产量相关性状（二次枝梗数、穗总粒数、穗实粒数、粒重和穗重）、粒型（粒长、宽、厚）和碾磨品质（糙米率、精米率和整精米率....[查看全部]
下载频数：11 上传时间：2014-03-17
加入收藏
论文题目：利用三重测交群体剖析玉米株高与穗位高杂种优势的遗传学基础
全部作者： 宋方威1,2,彭惠茹1,2,刘婷1,2,张义荣1,孙其信1,2,倪中福1,2,*
期刊名称：作物学报 2011年第7期
论文摘要：以玉米强优势杂交种组合豫玉22及其重组近交系为材料，按照TTC（triple testcross）遗传交配设计，组配了270个测交后代的TTC群体。利用复合区间作图法，对控制株高与穗位高的QTL进行了分析，分别检测到20和17个主效QTL，其中超显性位点最多（11个和8个）....[查看全部]
下载频数：15 上传时间：2014-03-17
加入收藏
论文题目：大豆硬脂酸-ACP脱饱和酶基因启动子的克隆及其表达活性分析
全部作者： 张庆林1,赵艳2,**,李晓薇1,翟莹1,张艳1,王英1,李景文1,*,,王庆钰1,*
期刊名称：作物学报 2011年第7期
论文摘要：以吉豆2号基因组为模板，通过TAIL PCR方法，扩增得到大豆硬脂酸-ACP脱饱和酶基因启动子片段SACPD-Cp。PLACE在线启动子预测分析表明，该序列中含有多种典型的种子特异性表达序列元件。将SACPD-Cp片段取代pCAMBIA1301质粒中的CaMV35S启动子，构建表达载体pCAM-....[查看全部]
下载频数：6 上传时间：2014-03-17
加入收藏
论文题目：不同材料覆盖的土壤水温效应及对玉米生长的影响
全部作者： 王敏1,2,王海霞1,韩清芳1,2,*,李荣1,2,张睿2,贾志宽1,2,杨宝平1,2
期刊名称：作物学报 2011年第7期
论文摘要：在渭北旱塬区采用随机区组试验，对比研究了生物降解膜（S）、塑料地膜（D）、秸秆（J）、液态膜（Y）覆盖和裸地平作种植玉米的土壤水温效应及玉米生长状况。结果表明，玉米进入抽雄期和灌浆期后，不同覆盖材料间土壤水分出现较大差异，40～....[查看全部]
下载频数：7 上传时间：2014-03-17
加入收藏
论文题目：Responses of Corn (Zea mays L.) Nitrogen Status Indicators to Nitrogen Rates and Soil Moisture
全部作者： 朱娟娟1,梁银丽1,2,TREMBLAYNicolas3,*
期刊名称：作物学报 2011年第7期
论文摘要：Plants usually experience fluctuating water supply during their life cycle due to continuous changes in climatic factors. Soil water content (SWC) is one of the most critical factors affecting nitrogen (N) availability, movement, and uptake by crops. Consequently, SWC levels may confound the...[查看全部]
论文摘要：Plants usually experience fluctuating water supply during their life cycle due to continuous changes in climatic factors. Soil water content (SWC) is one of the most critical factors affecting nitrogen (N) availability, movement, and uptake by crops. Consequently, SWC levels may confound the assessment of crop N status. The present study compared the sensitivity of tissue N concentration, SPAD readings, Dualex readings, and SPAD/Dualex ratios for assessing corn (Zea mays L.) N status under different water supply conditions. A greenhouse trial was conducted with four N fertilizer application rates (0, 50, 50+75, and 200 kg ha)1) and three watering levels (drought, drought followed by rewatering, and fully-watered). Tissue N concentration, SPAD, Dualex, and SPAD/Dualex values were influenced significantly by N rates and by SWC. Tissue N concentration, SPAD, and SPAD/Dualex increased with N rates, whereas Dualex decreased. In the first phase of reaction to drought, tissue N concentration, SPAD and SPAD/Dualex decreased rapidly but Dualex increased; however, the opposite pattern of response was observed in the long term. Under rewatering, tissue N concentration, Dualex and SPAD/Dualex gradually recovered, whereas SPAD values did not change significantly as they did in the drought treatment. There were highly significant relationships between SPAD (r = 0.92), Dualex,(r = =0.86), or SPAD/Dualex (r = 0.63) and tissue N concentration. However, SPAD and Dualex were better predictors of tissue N concentration under drought conditions (SPAD: r = 0.90; Dualex: r = =0.83) than under fully-watered conditions (SPAD: r = 0.39; Dualex: r = =0.44) at the end of the trial. Among the indicators, Dualex is better able to discriminate N treatments, with consistent results across SWC levels.[返回]
下载频数：10 上传时间：2014-03-17
加入收藏
