小麦的

PsCdc2 might be involved in primary hyphal growth and haustorium formation during early infection by regulating cell cycle of Pst. The present study would be helpful for understanding the essence of cell cycle control and provided basis for new chemical control of Pst.

本文首次报道了小麦条锈菌的Cdc2基因，为进一步揭示条锈菌细胞周期调控的本质及研究开发靶向Cdc2的新型农药，以及实现对小麦条锈病的新型药剂防治提供了理论基础。

Through the treatments of defoliate, darken ear and darken peduncle, we studied the effects of wheat photosynthesis organs on five items, such as 1000-grain weight, grain weight/ear, grain number/ear, contribution to 1000-grain weight and contribution to grain weight/ear in different fertilizations.

为了解小麦光合器官对产量的作用以及施肥的调节效应，通过剪叶、包穗、包穗下节等处理，研究了不同施肥条件下小麦光合器官对千粒重、穗粒重、穗粒数的影响以及对千粒重贡和穗粒重的贡献率。

So the variety of L21 andLainong9217 should be planted in dry land of high yield,and the variety ofLainong8834 and YD27 in dry land of middle yield,and gaining high yieldand high efficiency.2 The researches on the flag leaf and root system senescence after anthesisand yield were studied in dry land wheat of high yield,the activity of super-oxide dismatase and catalase、and the soluble protein content、Cytokinincontent in wheat flag leaf and root system after anthesisand Cytokinincontent in grain decreased slowly,and the content ofmalondiadehydeand the Abscisic Acidcontent in wheat flagleaf and root system and the Abscisic Acidcontent in grain increasedslowly,meanwhile keep higher root vigor and the root vigor decreased slow-ly,the result would be benefit to delay the senescence and gain high yield.3 The effects of soil thickness on the senescence of flag leaf and root sys-tem、nitrogen distribution and utilization and water consumption law andyield in dry land wheat had been studied in soil column and field.

通过大田条件下旱地高产小麦耗水规律及产量变化的研究表明，4个品种耗水量、产量、水分生产率、籽粒产量中来自花后光合器官输送的比例及综合效益评判结果均以鲁麦21和莱农9217为高，而莱农8834和烟D27则与此相反，因而在旱地高产麦田应以种植鲁麦21和莱农9217为主，中产麦田以莱农8834和烟D27为主，以获得高产高效。2在旱地高产大田对鲁麦21与烟D27两品种花后旗叶、根系衰老及产量变化进行了研究，认为花后旗叶与根系SOD、CAT活性、可溶性蛋白质含量、i-PAs含量及籽粒iPAs含量降低缓慢，MDA含量、ABA含量及籽粒ABA含量增加缓慢，同时保持较高的根系活力且下降缓慢，有利于延缓衰老，形成高产。3土层厚度对旱地小麦花后衰老、氮素分配利用及产量的影响进行了研究，随土层厚度加深，根系活力、根系与旗叶SOD、CAT活性及可溶性蛋白质含量增加，MDA含量减少，土层愈薄，其根系与旗叶衰老愈快。

Furthermore, 142 accessions could be divided into three major groups using the clustering analysis, indicating that the gliadin variations among durum wheat were associated with their geographic origin.

高分子量谷蛋白电泳共分离出14种亚基和15种亚基组合，但是优质亚基所占比例不高，这可能是因为硬粒小麦加工用途的特殊性，使得多年的育种并未太多改变硬粒小麦高分子量谷蛋白亚基等位变异的频率，促成优质亚基的累计。

The wild wheat with its small 14-chromosome grain s to make Emmer, a larger 28-chromosome grain that scattered in the wind.

野生小麦属飘散在风中的有14个染色体的小颗粒，它与具有14个染色体的假升麻草杂交变成了二粒穗小麦，即飘散在风中具有28个染色体的较大颗粒，

The wild wheat with its small 14-chromosome gra in s to make Emmer, a larger 28-chromosome gra in that scattered in the w in d.

野生小麦属飘散在风中的有14个染色体的小颗粒，它与具有14个染色体的假升麻草杂交变成了二粒穗小麦，即飘散在风中具有28个染色体的较大颗粒，

The wild wheat with its small 14-chromosome grains to make Emmer, a larger 28-chromosome grain that scattered in the wind .

野生小麦属飘散在风中的有14个染色体的小颗粒，它与具有14个染色体的假升麻草杂交变成了二粒穗小麦，即飘散在风中具有28个染色体的较大颗粒，

The protein encoded by RBB1 contained two conserve domain ATP-synt-DE-N and AtpC from 3 to 83 and from 1 to 133. All above showed that the full length cDNA RBB1 encoded ATP synthase CF1 epsilon chain protein The plant resistant mechanism is very sophisticated and one of the mainly responses is the metabolic change.

植物的抗病机理非常复杂，其主要反应之一就是代谢上的变化，例如，在利用cDNA微阵列对水稻抗稻瘟病近等基因系的分析中，检测到了很多与光合作用和糖代谢功能有关的差异表达片段；在小麦中也筛选到一个植物中ATP酶具有高度同源性的cDNA序列可能与小麦抗白粉病相关。

However, as a hexaploid species, this study was hampered by the complexity of the wheat genome.

然而，普通小麦作为异源六倍体物种，其基因组的复杂性为功能基因分子标记的开发带来了极大的困难，因此研究在普通小麦中开发SNP标记同样也具有重要的理论意义。

A synthetic hexaploidy wheat with resistant to preharvest sprout and hard glume was employed to cross with a common wheat line with character of susceptible to preharvest sprout and normal glume hardness, and then built up the F3 population, aiming at studying the relationship between the resistance to preharvest sprout and its glume hardness.

本研究利用抗穗发芽、硬颖壳的人工合成小麦与正常颖壳硬度、穗发芽的普通小麦杂交构建的杂种F3代群体，研究穗发芽与颖壳硬度之间的关系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。