随着我国经济的不断发展,我国的马铃薯加工业也迅速发展和不断壮大,但是我国过去马铃薯培育的品种都是以鲜食为主,培育的目标是高产和抗病性,对于加工型的品种培育较少,对加工品质重视不够。因此,我国应该从国外引进外国资源进行培育,培育出适合我国地理条件和气候条件的加工型品种。目前,荷兰马铃薯的育种工作在世界处于领先位置,因此我国应引进荷兰的优质种质资源进行培育,培育出适合我国的加工型品种。本研究用从荷兰种
A subgroup H of a group G is said to be c-supplemented in G if there exists a subgroup K of G such that G = HK and H∩K is contained in coreG(H).In this paper w
Let M be a monoid and let (0) be an endomorphism of M.We prove that if the Bruck-Reilly extension BR(M,(0)) is finitely presented,then the Bruck-Reilly extensio
Using the concept of isoclinism, we study closely the center of the group Autc(G) of central automorphisms for a certain class of finite p-groups G.We also give
大麦黄花叶病是欧亚冬大麦上最重要的病害之一,由大麦黄花叶病毒(BaYMV)和大麦温和花叶病毒(BaMMV)通过土传真菌多粘菌(polymyxa graminis)传播引起,选育并使用抗病品种是防止该病危害的有效途径。本研究以96份来源不同的大麦材料构建的自然群体为材料,对参试材料的大麦黄花叶病抗性进行鉴定,分析参试材料不同时期的抗性差异及综合抗性,并对参试材料的抗性进行聚类分析。利用覆盖全基因组的
Anderson and Camillo studied the class of rings satisfying ZCn for n ≥2, which is a generalization of reduced rings. In this paper, we continue the study of su
为满足标记辅助育种的要求,利用高通量PE150测序技术首次开展了长蛸五个不同组织的转录组测序,并用Newbler等软件进行转录本的组装以及转录本的功能注释.结果 表明:共获得了
In this paper we prove that the simple linear groups L16(2m) (m≥1) over fields of characteristic 2 are recognizable by the sets of their element orders.
《警世恒言》作为冯梦龙所编纂的白话短片笔记小说,冯梦龙的《卢大学诗酒傲王侯》描写清晰逼真,人物和景物均富有可见性、动态感,艺术形象声画结合,情节发展时空一体.其中在
The main purpose of this paper is to extend the study of various annihilator conditions on polynomials to formal power series in which addition and substitution