玉米

The result indicated, the CIMMYT forage characteristics of the overgrowth, strong tillerity and high yield could inherit to the offspring ,and the inherit ability was higher. It was obviously difference of seedling, plant, and its grow habit, flower apparatus and seed between CIMMYT forage and common maize. The hybrid offspring of CIMMYT forage and common maize keep the strong trait of growing and development, but the flower and seed character were look like common maize. The backcross offspring were not different to common maize besides with some tillers, distinct multi-ear and atavism.

结果表明，CIMMYT牧草能将其生长繁茂、分蘖力强、生物产量高的特性遗传给杂交后代，并有较强的世代传递能力；该牧草幼苗、植株及其生长习性、花器官、种子特征等与普通玉米差异明显，其与普通玉米的杂交后代基本保持了它的生长发育特性，但花器官和种子特征更偏向于普通玉米；回交后代除保持了一定的分蘖特性、明显的多穗和返祖现象外，其余特征特性与普通玉米基本没有区别。

One hundred and eighty three pairs of SSR markers were selected to construct a genetic linkage map, covering 1 762.2 cM and on the average distance of 9.63 cM between the markers.

在两种环境条件下种植以普通玉米自交系丹232和爆裂玉米自交系N04为亲本构建的259个F2：3家系群体，采用SSR标记构建了包含183个标记的玉米遗传连锁图谱，覆盖玉米基因组1 762.2 cM，标记间平均距离为9.6 cM。

Two hundred fifty-nine F2:3 families, developed from the cross between a dent corn inbred Dan232 and a popcorn inbred N04 were evaluated for its starch content in a replicated experiments under two environments. 183 pairs SSR were selected to construct a genetic linkage map with the genetic distance of 1 762.2 cM and on average 9.6 cM every marker.

在两种环境条件下种植以普通玉米自交系丹232和爆裂玉米自交系N04为亲本构建的259个F2∶3家系群体，采用SSR标记构建了包含183个标记的爆裂玉米遗传连锁图谱，覆盖玉米基因组1 762.2 cM，标记间平均距离为9.6 cM。

Biomass and WUE1 of wheat with R chromosome set is largest in all diploidy material, and that with B chromosome set is least in all diploidy material. Meanwhile, the root growth of wheat with A and B chromosome set is largest, and that with D chromosome set is least in all diploid material.

N、P影响了干旱下玉米叶片的气体交换能力，表现为提高了干旱下玉米叶片的气孔导度和光合速率，且N的作用要大于P的作用；N具有同时降低玉米叶片光合作用的气孔和非气孔限制的作用，而P提高玉米光合则主要是由于降低了干旱下的非气孔限制。

In this paper genetic research and identification of resistance to head smut in maize and varieties breeding were summarized. There were still many problems should be resolved. Combination of biotechnology and routine breeding may improve the progress of resistance to head smut in maize breeding.

对当前玉米丝黑穂病抗性的遗传研究、抗性鉴定及品种选育等方面做了简要的概述，并分析了其中存在的一些问题，指出分子生物技术与玉米常规育种技术的结合将推动玉米抗丝黑穗病育种取得新的进展，希望对玉米抗丝黑穂病育种有所启示。

"Zhuanghe Bright Peal" Brand Maize is characterized by light mass ,being easily chewed,sweet taste and smell,clear luster and has vary high eating value and medicinal value;"Zhuanghe Bright Peal" Brand Maizeis the important source of feed for the development of green livestock raising industry and the "Zhuanghe Bright Peal" Brand Maize flour and hominy grits processed by the domestically introduced maize combined production and fine processing production line have rich nutrition and no any pollution and therefore,they are well received by the consumers.

"庄合晟珠"牌鲜玉米质轻易嚼、口味香甜、色泽鲜亮，具有很高的食用和药用价值；"庄合晟珠"牌玉米是发展绿色畜禽饲养业的重要饲料来源；引进国内玉米联产精加工生产线，加工出的"庄合晟珠"牌玉米面、玉米楂，营养丰富、无污染，深受消费者的喜爱。

The progress levels of symptoms after pathogen infection showed that interaction of gray leaf spot pathogen and host has differentiation or polymorphism. The progress levels of symptoms is different.The aggressively has polymorphism. The pathogenicity of different isolates in same cultivar has polymorphism, or the host reaction type of same isolate in different cultivars has polymorphism.The host reaction type has differentiation. There are seven types of host reaction in cultivar and inbred after infected by GLS pathogen:Rectangular lesion without chlorotic halo, Rectangular lesion with chlorotic halo,Irregular lesion without chlorotic halo,Irregular lesion with chlorotic halo, Spot lesion with chlorotic halo,Rectangular and irregular lesionand Rectangular and spot lesion. The host reaction type is coalesced lesion when disease severely. Frequency of each reaction types is different.

通过对玉米灰斑病菌侵染后的显症过程的系统观察，可在组织水平上说明该病菌与寄主互作反应存在分化或多样性：玉米灰斑病菌不同菌株侵染后显症过程表现出明显的差异；玉米灰斑病菌在侵袭力上存在多样性，菌株间对同一种品种的致病性表现多样化，或者同一菌株对不同品种侵染引起的寄主反应表现为多样性；病斑反应型的分化，玉米灰斑病菌侵染玉米品种或自交系后，主要有7种病斑反应类型，即RH型、RN型、IRH型(不规则形具褪绿晕圈病斑)、IRN型(不规则形无褪绿晕圈病斑)、SH型、RI型(长矩形与不规则形混合病斑)和RS型(长矩形与斑点形混合病斑)，若发病严重，病斑连成片，而且这些反应类型出现的频率也不同。

The results showed that 177.24 kg·hm^-2 N had been removed by corn harvesting and 1.03 kg·hm^-2 by water and soil erosion, which accounted for 99.42% and 0.58% of the total N removal respectively in treatment with integrated contour hedgerows strip＋contour cropping＋balanced fertilization.

结果表明，在等高种植＋平衡施肥＋等高植物篱条带组合农艺措施条件下，收获玉米带走的氮为177.24kg·hm^-2，占水土流失和收获玉米带走氮总量的99.42％，水土流失带走1.03kg·hm^-2的氮，占水土流失和收获玉米带走氮总量的0.58％；顺坡种植＋农民习惯施肥收获玉米带走的氮仅为120.31kg·hm^-2，占水土流失和收获玉米带走氮总量的79.36％，而水土流失带走31.29kg·hm^-2的氮，占带走氮总量的20.64％。

At the same time, there were complementation of water and nitrogen between spring-sown maize and summer-sown maize in the system of relay-planting. Spring-sown maize could get water and nitrogen from the summer-sown maize zone, and also the roots of summer-sown maize could touched to the regions of spring-sown maize to get water and nitrogen.

同时，套作体系中春、夏玉米存在对氮素和水分的互补利用，春玉米根系可以伸展到夏玉米区，而夏玉米也可以吸收利用春玉米区，从而达到养分与水分的互补利用。

But relay-cropping with spring-sown different maturity maize cultivars can obviously affect the biomass, grain yield, and nutritive values of the same summer-sown maize cultivars.

当夏玉米为同一品种时，夏玉米生物产量和营养价值表现为：与春玉米LD14套作＞与春玉米YD22套作＞与春玉米YD13套作。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。