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21.
牡丹晚报自创刊以来,组织策划了一系列卓有影响的重点报道,特别是在典型宣传方面,推出了一大批战斗在各条战线上的先进人物,收到了较好的社会效果。 相似文献
22.
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正牡丹是一种原产于中国的世界名花,曾多次被搬上方寸,但在票名中标出品种名称的仅有特61《牡丹》邮票15枚和小型张一枚。和邮票同种同名、且可以制作极限片的明信片,目前笔者仅见有13种。"胜丹炉"、"御衣黄"、"醉仙桃"邮票则未见有同名明信片,但有同种异名明信片存在,"昆山夜光"、"蓝田玉"既有同种同名片,亦有同种异名片。同种异名即一个品种有两个或多 相似文献
25.
26.
2003年4月l8日到5月8日,菏泽国际牡丹花会将在山东省菏泽市召开。菏泽地理环境优越,是牡丹生长的理想之所。这里牡丹栽培历史悠久,始于宋、盛于明,很早就有“曹州牡丹甲于海内”之说。时至今日,牡丹种植面积8万亩,有9大色系、l0大花型、1100多个品种,菏泽是世界上 相似文献
27.
芍药属的研究(1)——国产几个野生种核型的报道 总被引:1,自引:0,他引:1
In the present paper 8 species with 15 populations of the genus Paeonia L. (if P.
papaveracea and P. japonica are recognised as species) were collected from Sichuan, Shaanxi
and Hebei provinces (see the Appendix for detail of the materials). The micrographs of their
somatic metaphase (also Mii in the case of P.veitchii) are shown in Plates 1-4, the karyo-
type formulae, ranges of chromosome length and classification of karyotypes according to Steb-
bins (1971) are shown in Table 5: the idiograms in Figs. 1-2, and the parameters of chromo-
somes in Table 1-4. The essential points are mentioned as follows:
(1) Chromosomes of the various species in the section Modan have so far been examined
and they are all diploid, the two species in the section Onaepia are also diploid, and thus
tetraploids exist only in the section Paeonia.
(2) Chromosomes in the genus Paeonia are relatively stable except for the differentiation
of ploidy. The karyotypes (Table 1-4) show no differences among different taxa in Sect.
Modan and the same can also be said about the taxa in Sect. Paeonia (Table 1). Not only
are the karyotypes very similar, but also among the members within either section have the
same parameters of chromosomes, and, differences, if occur, are not statistically significant.
Between the two sections, however, the situation is different. The arm ratios of the first pairs of
chromosomes in Sect. Modan are 1.53, 1.52 and 1.48 (Table 1), but those in Sect. Paeonia
are 1.12-1.28 (Table 2-4), 95% confidence limits are 1.46-1.60 for the section Modan and
1.07-1.28 (1.21-1.35 only for PB85078) for the section Paeonia, not overlapping, which indi-
cates that the two sections have differentiated in respect of the first pairs of chromosomes.
(3)The population PB85024, which belongs to the P. obovata complex, has a karyotype of
2B (stebbins, 1971), which is a new one in the genus Paeonia. This karyotype is a stable one,
for several individuals in the population are uniform in this respect, which shows that Steb-
bins’ (1971) generalization that all the species in Paeonia have 2A does not hold true.
(4) Three populations of P. obovata complex studied in this work from Sichuan and
Shaanxi are all tetraploids, and one from Hebei is a diploid. From the present work and
the previcus reports, the materials from Japan and Korea, no matter whether flowers are pink
or white, are diploids, those from Heilongjiang Province (with both pink and white flowers)
(Liu Ming-yuan, personal communication) and from Heibei Province (with pink flowers)
in China are also diploids, the one from Sakhalin (pink flowers) is tetraploid, those from
Priamur of the Soviet Union are a tetraploid (with white flowers) and a diploid (with pink
flowers), and those from Shaanxi (the Qinling Range) and western Sichuan (with both pink
and white flowers) are all tetraploids. As far as we have now known, ploidy in this parti-
cular complex is correlated with the geographical distribution: diploids are found in the cen-
tral part, tetraploids occur in the northern limits, and in the south letraploids are the only
cytotype.
(5) The materials of P. mairei from western Sichuan and Shaanxi (the Qinling Range)
are found all to be tetraploids, which shows that two cytotypes, diploid and tetraploid, exist in
this species, but the geographical distribution pattern of these two cytotypes is to be revealed
in the future investigation. 相似文献
28.
29.
有关墨彩在辞书中是这样注释的:瓷器装饰彩之一,以黑色为主兼用矾红、本金等材料,在瓷器上绘画,经彩炉烘烤而成。墨彩始见于清康熙年间,是五彩、珐琅彩、粉彩瓷器中常见的色彩。到雍正、乾隆年间,墨彩器用国产料仿烧水墨珐琅效果的瓷器。墨彩是在白瓷器物上以墨料绘画纹样,再经低温烘烤而成,犹如在白纸上作画,墨色浓淡,雅洁宜人,可与水墨丹青媲美, 相似文献
30.
1994年4月,在安徽合肥市电子研究所建设工地发掘出一座宋墓,出土多件文房用具,其中牡丹纹石雕印盒(见图)以其造型别致、构思奇巧、雕琢风格浑朴雄健而引人注目。 相似文献