论文部分内容阅读
以杂交水稻组合D优3138为试验材料,设7.5万,15万,22.5万和30万穴·hm-24个密度,研究该组合在不同种植密度下的分蘖动态及成穗规律和穗粒结构特点及其对水稻产量的影响.
D优3138杂交稻不同栽培密度的分蘖动态及成穗规律
【摘 要】
：
以杂交水稻组合D优3138为试验材料,设7.5万,15万,22.5万和30万穴·hm-24个密度,研究该组合在不同种植密度下的分蘖动态及成穗规律和穗粒结构特点及其对水稻产量的影响.
【机 构】
：
信阳市农业科学研究院,潢川县种子管理站
【出 处】
：
浙江农业科学
【发表日期】
：
2004年期
其他文献
In this work, the interaction between chelerythrine (CHE) and guanosine is studied using UV-vis and fluorescence measurements at various temperatures. The UV-vi
Haloacetic acids,disinfection byproducts(DBPs) formed during drinking water chlorination process are carcinogens. The efficacy of nanofiltration(NF) was examine
The effect of coupling coagulation and flocculation with membrane filtration in water treatment:A re
Water supply and sanitation demands are foreseen to face enormous challenges over the coming decades to meet the fast growing needs in a global perspective. Sig
A novel method for the determination of captopril by speetrophotometer is described in this paper. The experiment is based on the fact that Fe(Ⅲ) is reduced to
In this study, chlorine decay experiments were conducted for the raw water from Nakdong river that is treated by Chilseo Water Treatment Plant (CWTP) situated i
Four batch experiments of hydrolysis and acidification were carried out to investigate the distributions of proteins (PN) and polysaccharides (PS) in the sludge
机翼的结构设计不仅要满足强度、刚度等力学性能要求,还要考虑制造成本因素。纵观国内外主要的成本估算模型,难以找到可以适用于设计全过程各个阶段的成本模型,同时基于历史
Heavy Metal Pollution in Soils on Railroad Side of Zhengzhou-Putian Section of Longxi-Haizhou Railro
The pollution status and horizontal distribution of heavy metals (Ni, Pb, Cr, Zn, Cu, and Cd) in the soil on railroad side along the Zhengzhou-Putian section of
Monitoring and evaluating the nutritional status of vegetation under stress from exhausted coal mining sites by hy-per-spectral remote sensing is important in f
一家工程项目承包公司在同时拥有多个EPC项目的情形下,存在来源多、管理难度大的项目群风险.探讨如何有效管理好这个项目群的风险.通过对EPC模式下项目群这一特殊组织形式的