【摘 要】
:
多年的栽培实践告诉我们,越冬期的气温条件对于小麦分蘖动态有着很大的影响。而这一阶段分蘖动态变化与最后产量的形成,特别是争足穗大穗有着密切的关系。因此,研究小麦在不
论文部分内容阅读
多年的栽培实践告诉我们,越冬期的气温条件对于小麦分蘖动态有着很大的影响。而这一阶段分蘖动态变化与最后产量的形成,特别是争足穗大穗有着密切的关系。因此,研究小麦在不同气温类型年条件下越冬期苗情分蘖动态变化规律,並据此采取相应的栽培措施,对实现高产稳产有重要意义。
Years of cultivation practice tells us that overwintering temperature conditions have a great impact on the tillering dynamics of wheat. At this stage, the dynamic changes of tillering are closely related to the formation of the final yield, especially the spike big spike. Therefore, it is important to study the dynamics of tillering of winter wheat seedlings overwintering under different temperature types, and to take corresponding cultivation measures accordingly.
其他文献
The pressure dependence of elastic properties of ZnS in zinc-blende (ZB) and wurtzite (WZ) structures are investigated by the generalized gradient approximation
A new type of printed rectangular he/ix slow-wave structure (SWS) is investigated using the field-matching method and the electromagnetic integral equations at
The solvent peak in the intermolecular multiple-quantum coherence spectra can be suppressed by either applying pulse field gradients or spinning sample along th
The adsorption and dissociation behaviors of methanol on Pd(111),Pd/Au(111)and Pd/Rh(111)surfaces were studied using a periodical slab model and the PW91 genera
The pnicogen bond interaction between different electron donors(anion,π-lectron,heteroatom)and Ecl3(E = As,P)was calculated by the method of MP2/aug-cc-pVTZ.It
We show many versatile phase synchronous configurations that emerge in an array of coupled chaotic elements due to the presence of a periodic stimulus. Then, we
1.选地.选择腐殖层深厚,土壤肥沃,质地均匀,有灌溉和排水条件的地块作为提纯复壮田。为了保证人参个体生长发育,在技术措施和管理水平上,都要高于生产田,株距要适当扩大,品
Effects of interface roughness and dislocation density on the electroluminescence (EL) intensity of In GaN multiplem quantum wells (MQWs) are investigated. It i
甘薯常规育种从杂交到选择及基因型的无性繁殖固定只经过一次杂交,无自交聚优汰劣的基因型纯化的渐进过程,因此基因重组分离的机会也仅有一次。这就决定了甘薯育种中合理选
We numerically study the interactions of solitary waves in granular media, by considering a chain of beads, which repel upon contact via the Hertz-type potentia