棉花优化结铃模型的调节技术

来源 :中国棉花 | 被引量 : 0次 | 上传用户:humeiyu2009
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
棉花纤维品质主要取决于品种的遗传特性,但不同的生态条件、种植方式和栽培技术,也对其产生较大的影响,不但同一个品种在不同生态棉区种植纤维品质差异甚远,即使是同一棉株,不同时间空间成铃的纤维品质也有显著差异。因此,如何调节棉花的成铃分布,使其在最佳结铃季节着结较多的 The quality of cotton fiber mainly depends on the genetic characteristics of varieties, but different ecological conditions, planting methods and cultivation techniques also have a greater impact on it, not only the quality of the fiber in the same variety in different ecological cotton area is far different, even if The same cotton plant, different time space into the bell fiber quality are also significantly different. Therefore, how to adjust the distribution of cotton bolls, make it in the best season more bear knot
其他文献
We have theoretically investigated the optical absorption spectrum and intraband dynamics by subjecting a superlattice to both a terahertz (THz)-frequency drivi
期刊
战史陈列馆是我国红色旅游的经典景区、也是我国爱国主义教育的示范基地,而战史陈列馆作为我国精神文明建设的重要宣传基地与革命教育、爱国主义教育的主阵地,具有一定代表性
目的 研究对甲基桂皮丹酚酯的抗辐射活性.方法 以6~8周龄的ICR小鼠作为研究对象,经137Csγ射线一次性全身照射后,以30 d存活率、血液生化指标、脏器指数及肺和肝的超氧化物歧化酶(SOD)、丙二醛为指标,考察低、中、高3个剂量组的对甲基桂皮丹酚酯的抗辐射损伤效应.结果 对甲基桂皮丹酚酯可以提高经8.5 Gy 137Cs γ射线一次性全身照射损伤ICR小鼠的30 d存活率,对小鼠经6.5 Gy
Membrane tethers are extracted from breast cancer cells using a force generated by an optical trap. It is experimentally obtained that the radius of tether is a
期刊
Sanwal et al. [Astrophys. J. 574 (2002) L61] supposed that it is very difficult to interpret the absorption features in terms of cyclotron lines. However, we wo
期刊
We present an extension of the original simple model for f -d transition proposed by Duan and co-workers [Phys.Rev. B 66 (2002)155108; J. Alloys Compound. 366 (
期刊
The rates of the thermonuclear 18F(p, α)15O and 18F(p,γ)19Ne reactions in hot astrophysical environments are needed to understand gamma-ray emission from nova
期刊
目的 检测人类免疫缺陷病毒转录反式激活因子( TAT)对DNA依赖蛋白激酶催化亚单位( DN A-PKcs)基因启动子活性的影响.方法 用PCR方法克隆DNA-PKcs基因启动子的系列截短体,通过DNA重组构建pGL3-basic-DN A-PKcs肩动子报告质粒载体,通过双荧光素酶报告基因检测DNA-PKcs基因的肩动子活性,采用基于乳糖抑制子和乳糖操纵子并结合绿色荧光蛋白分子荧光的大规模染色质
L-shell production cross sections Lα, Lβ and Lγ for Au and Ir atoms have been measured by electron impact at incident electron energies of about one to three
期刊
Temporal distribution of the H atom and Hz densities in a pulsed microwave hydrogen plasmas has been measured simultaneously by two-photon absorption laser-indu
期刊