角枝

The species of cladoceran and copepod in Shiquan River are fewer. From the specimens we observed 5 families 8 genus 18 species of cladoceran and the dominant species are A. sp and Chydrorus sp. Copepoda had 2 orders 8 species.

狮泉河的枝角类和桡足类种类很少，所采样品仅检出枝角类5科8属18种，优势种类为尖额溞和盘肠溞；桡足类2目8种。

To reveal patterns of longitudinal distribution, seasonal variation, and ecological succession in cladocerans communities in the Three Gorges Reservoir, ten sites were used to sample cladoceran communities across a longitudinal gradient from April, 2004 to January, 2005. Nine cladoceran species were collected throughout the year.

中文摘要：为了阐明三峡水库初次蓄水后干流库区枝角类的时空分布规律， 2004年4月至2005年1月，在600余公里干流库区设置10个样点，定性和定量采集枝角类标本。

OGa. The 1863士44Ma U-Pb age of migmatite and 2071士48 Sm-Nd iso- chron age of amphibolite in Sanzhishu demonstrate that at least part of the "Hexi" Group is of Early Proterozoic rather than Late Paleozoic.

三枝树地区"鹤溪群"中混合岩年龄为1863±44Ma，斜长角闪岩全岩矿物Sm－Nd等时线年龄为2071±48Ma，表明景宁三枝树地区变质岩的时代应为早元古代，并非原来所属"鹤溪群"划归的晚古生代，这套变质岩可能是浙闽变质基底的一部分。

During the period the author has particulanly studied in ecology and cultural technology of cladocera and rotifer.

在此期间，作者主要从事枝角类和轮虫的生态学及培养技术等方面的研究，内容包括：第一部分淡水枝角类批量培养的基础研究。

Thecompare of genetic map between Lowes and ours showed 26 homology marker situ,which occupied 21.1% of the marker situ in the experiment. 81 QTLs were detected for 11 agronomic traits. 4 QTLs were detected for plantheight, which explained 10.3%～28.9% of trait variance; 2 QTLs were detected forNo. of effective 1-st branches, which explained 22.1%～47% of trait variance; 16QTLs were detected for effective branches height, which explained 12.2%～51.8% oftrait variance; 15 QTLs were detected for length of main inflorenscence, whichexplained 7.4%～26.6% of trait variance; 5 QTLs were detected for effective siliquesof main inflorenscence, which explained 11.2%～25% of trait variance; 1 QTLs weredetected for density of main infiorenscence, which explained 17.3% of trait variance;12 QTLs were detected for length of silique, which explained 24%～36.7% of traitvariance; 2 QTLs were detected for seed per sillique, which explained 9.6% and16.9% of trait variance; 2 QTLs were detected for 1000 seed weight, which explained26%～13.7% of trait variance; 11 QTLs were detected for Total effective siliques perplant, which explained 14.8%～47.2% of trait variance; 11 QTLs were detected forplant height, which explained 14.3%～32.8% of trait variance.

其中，株高检测到4个QTLs，解释性状表型变异的10.3％～28.9％；一次有效分枝数检测到2个QTLs，解释性状表型变异的22.1％和47％；有效分枝部位检测到16个QTLs，解释性状表型变异的12.2％～51.8％；主花序长度检测到15个QTLs，解释性状表型变异的7.4％～26.6％；主花序有效角数检测到5个QTLs，解释性状表型变异的11.2％～25％；主花序角密度检测到1个QTLs，解释性状表型变异的17.3％；角果长度检测到12个QTLs，解释性状表型变异的24％～36.7％；每角粒数检测到2个QTLs，解释性状表型变异的9.6％和16.9％；千粒重检测到2个QTLs，解释性状表型变异的26％和13.7％；单株有效角果总数检测到11个QTLs，解释性状表型变异的14.8％～47.2％；单株产量检测到11个QTLs，解释性状表型变异的14.3％～32.8％。

Leaves opposite or rarely alternate, subequal in size; stipules lanceolate, 7-10 mm; petiole 1.5-6(-10) cm, densely pubescent; leaf blade dark green or black when dry, oblate to 5-angled or oblate to orbicular-ovate, often ovate in upper stems, 8-12(-18)× 7-14(-22) cm, papery, secondary veins 2 pairs along midvein, abaxial surface densely pubescent along veins and veinlets, adaxial surface roughish, densely strigose, base truncate, subcordate, or broadly cuneate, margin coarsely 8-12-dentate, teeth gradually larger distally, often biserrate apically, apex 3-cusped or lobed, tip serrulate. Glomerules on axillary spikelike flowering branches, male branches often branched, 8-17 cm; female spikes distal, unbranched or branched, 5.5-24 cm.

叶对生或很少互生，大小近等；托叶披针形，7-10毫米；叶柄1.5-6(-10)厘米，密被短柔毛；叶片深绿色或黑色的干燥时，扁球形到具5个角或扁球形的到圆形卵形的，通常在上面茎内卵形的， 8-12(-18)* 7-14(-22)厘米，纸质，次脉2 对沿中脉，背面密被短柔毛的沿脉和细脉，正面微糙，密被糙伏毛，基部截形，近心形，或宽楔形，团伞花序在腋生的穗状的花枝，雄性分枝通常分枝，8-17厘米的；雌性穗状花序上部，不分枝或分枝，-24 厘米。

They also showed that large Cladocera size is more important than their number for efficient phytoplankton control and when cladocerans are large enough, they can considerably restrain phytoplankton growth, including bloom-forming cyanobacteria, even when submerged vegetation is not restored.

同样，它们也显示了大型枝角类的体型相对于它们的数量就对浮游植物的有效控制上意义更大。当枝角类足够大时，它们能够限制浮游植物的生长，包括蓝藻的爆发，即便当沉水植被没有及时恢复。

The first feeding appears on the third day after hatching. The first food of larvae is Rotifera, But if Cladocera predominates in water, the first food can also be small Cladocera .

仔鱼3d龄开口，主要以轮虫为开口饵料，在食物中枝角类占绝对优势时，以小型枝角类为其开口饵料。

The distribution of branch angle was corelated to DINC of branch,the branch angle distributed in upper layer of canopy were generally small and with DINC increase the branch length of middle layer of canopy began to proglong,simultaneously,the weight of branch increased with branch diameter and length,hence,the branch angle of origin increased obviously and took the majority proportion.

着枝角的分布与着枝深度有密切的关系，着枝角度在树冠的上层时一般都较小，而随着树冠深度的增加，中层的枝条的枝长开始增大，枝条的重量随着基径和枝长在增大，着枝角度会明显增大，因此在这个范围内的分布最广，占了大多数。

The variation coefficients of most traits are greater in half-sib families than that in clones except for several branch traits.The average height of clones is nearly two meters higher than that of half-sib families, and the average volume of clones is 1.16 times about that of half-brethren families.

除枝下高、侧枝粗、分枝角、冠幅等几个分枝性状在无性系间的变异系数大于在半同胞家系间的变异系数外，其余性状均小于在半同胞家系间的变异系数。20个无性系的总平均树高、胸径和材积高于18个半同胞家系的平均值，其中，树高和材积显然高于半同胞家系的树高和材积，平均树高高出近2米，平均材积高出16.1%。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷