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 …
大垄双行种植的玉米群体冠层内，叶片光合特性也有不同程度的改善。
Photosynthesis characteristic of maize were improved by planting double line at one width ridge.
对来自CIMMYT的14份玉米群体，按不完全双列杂交组配56个杂交组合。
For 14 CIMMYT maize population, 56 hybridized combinations were made by using incomplete dual cross.
对国内12份有代表性的玉米群体材料，按不完全双列杂交组配48个杂交组合。
For 12 domestic maize population, 48 hybridized combinations were made by using incomplete dual cross.
通过测定不同种植密度玉米群体的光能分布，研究了群体光能分布特征对玉米产量和品质的影响。
The effects of light distribution in maize population on grain yield and quality were studied by determining the light distribution character among different plant densities.
结果表明，夏玉米群体二氧化碳通量、二氧化碳浓度差及群体水分利用率存在明显的日、季节变化规律。
The result showed that the co 2 flux and co 2 concentration gradient as well as the water use efficiency of the summer corn community had distinct daily and seasonal change patterns.
本文分析了利用二次回归旋转组合设计，研究玉米大豆间作群体各限制因素对产量等目标性状的影响。
The influence of limiting factors in a population of intercropped corn and soybean upon object characters such as yield was studied with quadratic regression rotational combinatorial design.
研究群体的品质改良，对拓展我国玉米种质基础及改善品质含量具有重大意义。
To study the quality improvement of maize population is significantly for the development of germplasm and quality improvement .
从轮回选择法改良的玉米育种群体中，选育出了配合力高、抗病性强的玉米新自交系za5716和ZA6192。
Two inbred lines of maize, ZA5716 and ZA6192, with high combining ability and disease resistance, were obtained from a breeding population improved by recurrent selection.
通过2002～2003年对青贮专用型玉米不同种植密度下，单株和群体叶面积、干物质积累及单位面积生物产量变化的研究，探讨单株和群体之间的相互影响。
Study on the effect of different densities of silage corn to the leaf area, dry matter and fresh yield of both single plant and population in 2002~2003.
结果显示，只有光照条件适宜的群体，才能充分利用光能，并可获得高产优质的玉米子粒。
The results showed that only under the optimum light radiation condition of population, the light energy could be fully utilized, and the grain yield was the highest and the quality was the best.
提高花后物质积累量是玉米高产群体质量的本质指标。
The essential indicator for high yield population was high dry matter accumulation during grain filling stage.
BSSS是一个适应性较好的外来群体，对改造和提高西南地区玉米地方品种的抗倒伏性和产量具有较好的效果。
BSSS adapted exotic population could be used to effectively improve the lodging-resistance and yielding of local varieties from Southwest China.
主要结果如下：1。以500个F 2单株为作图群体，利用150个共显性的SSR标记，构建了覆盖玉米全基因组的分子标记连锁图。
The major results are as follows. 1. A genetic linkage map containing 150 SSR markers was constructed based on an F2 population with 500 individuals.
主要结果如下：1。以500个F 2单株为作图群体，利用150个共显性的SSR标记，构建了覆盖玉米全基因组的分子标记连锁图。
The major results are as follows. 1. A genetic linkage map containing 150 SSR markers was constructed based on an F2 population with 500 individuals.
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