冀七——62直播旱稻

来源 :河北农业科技 | 被引量 : 0次 | 上传用户:dantezb
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
冀中南地区发展麦茬直播早稻,是扩大我省稻作面积,改善人民主食结构的战略措施,也是高效利用水热资源的耕作体制。冀七—62是河北大学生物系从冀粳7号的原77—2辐射处理 F_2 中连续选单株,系统选育而成的适合麦茬直播的旱稻新品种。1988—1989年参加省区试,增产显著,多个试点亩产超300公斤。一、特征特性:株高90—95厘米。幼穗分化前生长较缓慢,拔节到抽穗期生长迅速。分蘖期短,分蘖较少,且成穗率低。一般11片叶,第九叶最大。 The development of wheat stubble direct seeding early rice in central-southern Hebei is a strategic measure to expand the area of ​​paddy rice in our province and improve the people’s staple food structure. It is also a farming system that makes efficient use of water and heat resources. Jiqi -62 is a new upland rice variety suitable for direct seeding of wheat stubble, which was selected by the Department of Biology of Hebei University from the former 77-2 radiation treatment of F_2 in JiJing 7. 1988-1989 years to participate in the provincial test, a significant increase in output, a number of pilot mu per kilogram over 300 kg. First, the characteristics and characteristics: height 90-95 cm. Panicle growth before the relatively slow growth, rapid growth from jointing to heading. Short tillering period, fewer tillers, and ear-forming rate is low. General 11 leaves, the largest ninth leaf.
其他文献
The newly emerging metal halide perovskites have attracted considerable attention due to their exceptional optoelec-tronic properties. This upsurge was initiall
Gallium oxide (Ga2O3), a typical ultra wide bandgap semiconductor, with a bandgap of ~ 4.9 eV, critical breakdown field of 8 MV/cm, and Baliga’s figure of merit
使用单体播种机播种不失墒、出苗齐、株距均匀,是粮食增产的一项重要技术措施。近年来,仅公主岭市每年要用近二万台单体播种机播种,播种面积达12.7万公顷,增产效果明显。使
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
EGCG3″Me和EGCG4″Me是EGCG的两种甲基化派生产物,它们在抗过敏,尤其是在抗花粉过敏方面表现出非常显著的功效,所以该项研究受到日本业界高度重视,国际医药与保健品行业均认为甲基化EGCG非常有可能发展为一个独立品种,成为新的儿茶素经济增长点而为社会带来巨额财富。为了充分挖掘我国丰富的功能性茶树品种资源、提高茶叶资源利用的综合价值,充实我国对茶叶中甲基化EGCG的研究,本试验利用高效液相
The photoionization in the frame of the Ammosov-Delone-Krainov theory has been theoretically examined for noble gases,argon,krypton,and xenon,in an elliptically
哈罗德·拉斯韦尔将传播的基本社会功能概括为三个方面:环境监视功能、社会协调功能和社会遗产传承功能.本文在审视新冠肺炎疫情期间大众传媒社会功能的基础上,结合哈罗德·
Geant4 Monte Carlo simulation results of the single event upset (SEU) induced by protons with energy ranging from 0.3 MeV to 1 GeV are reported. The SEU cross s
Optical fibers are seen in the optical sensing and optical fiber communication. Simultaneous propagation of opti-cal pulses in an inhomogeneous optical fiber is
Metal-semiconductor Janus nanostructures with asymmetry and directionality have recently aroused significant interest,both in fundamental light-matter interacti