作物群体结构具有重要的生态学意义。
The structure of crop community plays an important ecological roles in farmland ecosystems.
此时为最佳产量群体结构。
对群体选择的理解一定要依赖于群体结构的假定。
I insist that only a presupposition of group structure can yield real understanding of the group selection.
四大家鱼群体结构中低龄鱼比重上升，高龄鱼比重下降；
The proportion of the low age groups of Chinese carps increased and the advanced age group decreased;
研究论证了泡沫群体结构在漏失通道中的动态封堵和疏水屏蔽作用。
This research proved the dynamic plugging and hydrophobic shield of foam formation.
文中分析了紧凑型玉米群体结构的光合生产特性和株型的增产原因。
The causes of increasing yield and photosynthesis traits in canopies of erectophile-type maize are discussed. Two quantitative parameters, leaf inclination angle and …
研究表明，病害在各供试品种上的严重度与寄主的群体结构密切相关。
The severity of disease on different test varieties was related to the structure of the host community.
研究结果表明，降低强筋小麦苏徐2号基本苗数，有利于改善群体结构，提高小麦产量。
This result of study indicates, reduce number of seedling of strong gluten wheat Suxu 2, favorable to improve colonys structure, improve the the wheat yield.
本文提出了一套定量分析优质铃群体结构的方法，其分析结果与实际生产管理情况基本相符。
The quantitative method, analysing the population structure of the high quality bolls, was suggested. the result was in accord with the actual situation.
本文较详细地介绍了适期播种的冬小麦叶蘖生长规律、群体结构及四大栽培体系的技术特点。
Here, growth regularity of leaf tillers and population structure of winter wheat seeded on suitable time, and the four cultivation systems are introduced in detail.
本文主要调查研究了凤城土门水库和辽阳汤河水库的池沼公鱼栖息活动及群体结构变化规律。
This paper deals with the behaviors of pond smelt and the changes in its population structure in the Tumen Reservoir, Fengcheng, and the Tanghe Reservoir, Liaoyang.
报道了闽江口海域鳓鱼的生殖群体结构、生长特性、死亡参数和繁殖、摄食习性等生态学资料。
The structure of reproductive stock, the growth character the mortality parameter and breeding, feeding habits of Chinese herring in the estuary of Mingjang River are reported in this paper.
通过田间试验研究了返青期不同程度根修剪处理对冬小麦群体结构、土壤水分及产量形成的影响。
A field experiment was conducted to study effects of root pruning at returning green stage on population structure, soil water and yield formation of winter wheat.
在人类单位点致病基因与遗传标记基因的遗传连锁分析中，家系是应用得最普遍的一种群体结构。
Pedigree is one of the most general population structure in the genetic linkage analysis between human single genetic inheritance disease locus and genetic marker locus.
氮肥主要影响冬小麦营养体个体形态特征和群体结构，对功能叶生理指标的影响程度远低于遗传因子。
Nitrogen fertilizer mainly affected the winter wheat individual character and colony's structure , nitrogen had less affected on functional leaves than genetic factors.
研究结果表明，企业制度、研发项目投入强度、企业群体结构和产业集群对区域技术创新效率有显著影响。
The research results reveal that enterprise ownership system, intensity of R&D project input, firm colony structure, industrial firm clusters have significant relation ship with the efficiencies.
以杂交中稻红莲优6号为材料，采用小区试验，研究了不同施氮水平和栽插密度及栽插模式对杂交中稻群体结构的影响。
The effects of different nitrogen fertilizer levels and transplanting mode on canopy structure and yield in Honglianyou 6 in plot experiments were studied.
本文介绍了这种栽培法的技术特点及增产效果，并依此对冬小麦壮苗标准、氮肥施用技术、高产群体结构等提出了新的见解。
The standard of healthy seedlings for winter wheat, the application of nitrogen fertilizer and the colonial structure of high yield are also introduced in this paper with some new views.
本文介绍了这种栽培法的技术特点及增产效果，并依此对冬小麦壮苗标准、氮肥施用技术、高产群体结构等提出了新的见解。
The standard of healthy seedlings for winter wheat, the application of nitrogen fertilizer and the colonial structure of high yield are also introduced in this paper with some new vie…
本文介绍了这种栽培法的技术特点及增产效果，并依此对冬小麦壮苗标准、氮肥施用技术、高产群体结构等提出了新的见解。
The standard of healthy seedlings for winter wheat, the application of nitrogen fertilizer and the colonial structure of high yield are also introduced in this paper...
本文根据福建海区历次海蜇的调查资料 ，就本海区的海蜇和霞水母的渔业资源状况、群体结构、生长特性等渔业生物学进行了分析研究。
The species composition, resources status and distribution characters of mangroves in China were investigated and evaluated by field survey and data analysis together with literature.
最成功的陆生植物群体是那些进化出了受精性细胞散布方法的群体，这些方法不依赖于水和防止发育中的胚胎干涸的结构。
The most successful groups of land plants are those that evolved methods of fertilized sex cell dispersal that are independent of water and structures that protest developing embryos from drying out.
将这两个概念组合起来，您就可以创建有效的信息结构，以更好地满足特定用户群体的需要。
Combined, these two ideas let you create effective information structures to better meet the needs of a particular user group.
一片雪花，必须有凝结核才能形成其复杂的晶体结构。在我们期望建立的群体中，同样需要这样的催化剂。
Just as a snowflake requires a nucleus to spur the formation of its intricate crystal structure - a catalyst was required to spur the formation of the desired community.
关键的一点是，拉格朗日拟序结构中的界限可以在群体间互换，正如一个人被挤进了错误的人群接着随着人群驶向错误的方向。
Crucially, they form a barrier to exchange between groups, as anyone who has been caught up in a crowd and pulled inexorably in the wrong direction will know.
一个群体中存在有基因结构么？如果有的话，那么这种结构可以被改变么？
Do groups have genetic structures? If so, can they be modified?
全面研究了该曲调群体的结构特点、旋律的程式性特征；
Comprehensive study the structural characteristics of the tune group and melody procedural features.
目的：提出基因频率矩阵的图论主坐标分析方法，探讨该法在人类群体遗传结构研究中的应用。
Objective: To present the methodology of graph theory principle coordinates analysis and explore its applicability for studying human population genetic structure.
图论主坐标分析是分析人类群体遗传结构的一种理想方法。
The graph theory principle coordinates analysis is an ideality method for studying the human population genetic structure.
图论主坐标分析是分析人类群体遗传结构的一种理想方法。
The graph theory principle coordinates analysis is an ideality method for studying the human population genetic structure.
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