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    Bulletin of Botanical Research 1997 Vol.17
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    STUDY ON THE CHINESE WILD WOODY PEONIES (Ⅲ) NEW TAXA OF PAEONIA L. SECT. MOUTAN DC.
    Hong Tao, Dai Zhen-lun
    Bulletin of Botanical Research    1997, 17 (1): 1-5.  
    Abstract355)      PDF(pc) (211KB)(277)       Save
    The present paper proposes 2 new species of Chinese wild woody peony from Baokang County of Hubei Province.The new species name "ridleyi" is dedicated to Viscount ridley, the retired Chairman of International Dendrology Society.We think Baokang district is a great treasure house of Chinese wild tree peony.
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    ON THE PRIMARY STUDY OF THE SYSTEMATICS AND FLORISTICS OF COMPOSITAE FROM CHINA
    Ling Yeou-ruenn
    Bulletin of Botanical Research    1997, 17 (1): 6-27.  
    Abstract356)      PDF(pc) (5205KB)(525)       Save
    The Phylogeny of Genera of Compositae in China, which is the sister paper, On the Primary Study of the Systematics and Floristics of Compositae (in the World) in 1993, is dedicated, and the Floristic Elements of Geography of it in China is also offered. There are 240 genera, in which 24 were introduced and cultivated for a long time, in China, and it is included in two subfamilies, 5 supertribes and 11 tribes. In the genera 7 are the world-wide distributions, 19 are the pantropic or to warm subtropic, or N. hemispheric-Africal (Eurasia-N. America -Africa) distributional genera, 32 genera are Asia-N. America, Asia-Pacific, Asia-Africa, or Asia discontinuous distributions with other 2 continents, 28 are the Mediterranean-E. or S. Asia distributional genera, 12 genera are Eurasia distribution and 14 genera are N. Temperate-wide distribution, 45 genera are C. Asian, or C. Asian-Qinghai-Xizang Plateau-Himalayan Mts. distributions, 5 are Asian Tropic or warm subtropic distributional genera, 19 are N. E. Asia, and 6 are Asia-wide distributional genera. Besides, there are 29 endemic genera in China. It is obvious, the floristic characteres of geography are:1. The Floristic Elements of Geography of Compositae in China are with rich continental distributional or discontinuously distributional genera, and both of which are 112 genera in China, and in it 86 genera are with tropic relationship in Floristics; 2. There are 75 genera, which distribute in both China and other Asian countries, especially with C. Asian countries or the C. Asia-Qinghai-Xizang Plateau-Himalayn Mts. distributions, latter are contained 45 genera. Besides, there are 28 genera, which distribute in the Mediterranean and also in China, and 3. There are 29 endemic genera in China, especially in Hengduang-Himalayan Mts. areas, where 13 genera are contained. It is, perhaps, migrated into Asia, then to China and diverged many genera and species, incl. the regional endemic genera and species, from the ancestors of tribes and genera of Compositae from speciation centre before or in Tertiary Period. Most of the ancestors of genera of Trib. Heliantheae, Inuleae, Eupatorieae, Senecioneae, Vernonieae and Mutisieae were migrated along the Gondwana Land, via S. America, S. Africa, Australia and also S. Asia, where the ancestor entered into S. and S.-E. China, a few genera of above tribes migrated along Laurasia Land, through N.-W. America into N. Asia, then to N. or N.-E. China. But the ancestors of genera of Trib. Anthemideae and Astereae were mainly migrated from speciation centre along Laurasia Land and via N.-W. America into N. Asia, only a few ancestors of the tribes migrated into Europe and some genera migrated along Gondwana Land into S. America Australia, and S. Asia, and distributed in S., S.-E. and S.-W. China. Besides, the ancestors of Trib. Calenduleae, Cynareae and Cichorieae migrated mainly along Gondwana Land, but in Africa, through the Mediterranean, C. Asia or S.-W. Asia into China. Those genera are distributed mainly in N.-W. and S.-W. China, except a few more widely distributional genera, which are also distributed in N.-E. and S.-E. China.
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    MATERIAL FOR THE GENUS LEYMUS (POACEAE)
    Cai Lian-bing
    Bulletin of Botanical Research    1997, 17 (1): 28-32.  
    Abstract332)      PDF(pc) (216KB)(228)       Save
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    NEW TAXA OF THE GENUS ASTRAGALUS FROM QINGHAI
    Wu Yu-hu
    Bulletin of Botanical Research    1997, 17 (1): 33-38.  
    Abstract286)      PDF(pc) (271KB)(163)       Save
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    NEW PLANTS OF SAUSSUREA DC. FROM XINJIANG PROVINCE OF CHINA
    Li Jun-shan, Chen Hu-biao, Cai Shao-qing, Liu Yong-min
    Bulletin of Botanical Research    1997, 17 (1): 39-41.  
    Abstract318)      PDF(pc) (154KB)(284)       Save
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    A NEW SPECIES OF DICRANOSTIGMA FROM HENAN AND ITS KARYOTYPE
    Wu Li-hong, Wang Sui-yi
    Bulletin of Botanical Research    1997, 17 (1): 42-46.  
    Abstract319)      PDF(pc) (221KB)(182)       Save
    The new species of Dicranostigma.D.henanensis S.Y.Wang et L.H.Wu, from Henan provice is described in this paper.It is similar to D.leptopodum(Maxim.) Feddle, but differs from the latter by the numbers of stems (reaching to 80cm high) varying form 8 to 40, the length of leaves reaching to 29cm, petals varying from 1.5 to 2.4cm, capsule from 7 to 15cm, and seeds 1mm long.It is also similar to D.iliensis C.Y.Wu, but the difference between them are that the stems are higher than latter, the sepals are covered with short pubescence and ovary with tuberculate hairs, seeds are in ovoid from.The present paper also reports the karyotype of the new species.The karyotypic formula was K (2n)=2x=12=6m (2SAT)+2sm+2st+2T.One pair of satelites was lo cated in the first pair of chromosomes.Under normal conditions, only one satelite was found cleary, sometimes all of them were not found clearly.The karyotypic asymmetry belongs to Stebbins' 2B type.
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    NOTES RELATING TO FLORA OF HUNAN:Ⅱ. CARYOPHYLLACEAE,FAGACEAE, UM BELLIFERAE,RUBIACEAE, COMPOSITAE,ALISMATACEAE
    Lin Qi, Liu Ke-ming
    Bulletin of Botanical Research    1997, 17 (1): 47-49.  
    Abstract366)      PDF(pc) (128KB)(378)       Save
    As new records to Hunan, 10 species and 1 genus of 6 families are reported in this paper.Newly recorded genus is Caldesia.Newly recorded species are Strllaria palustris, Lithocarpus damiaoshanicus, Quercus argyrotricha, Hydrocotyle wilfordi, Hedyotis acuangula, H.lancea, Rubia wallichiana, Sinosenecio phalacrocarpus, S.chienii and Caldesia grandis.
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    A NEW VARIETY OF PYRUS FROM SHANDONG PROVINCE
    Zang De-kui, Zhou Shu-jun, Peng Wei-dong
    Bulletin of Botanical Research    1997, 17 (1): 50-52.  
    Abstract252)      PDF(pc) (124KB)(159)       Save
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    A NEW VARIETY OF ALLTIUM MONANTHUM FROM CHANGBAI MOUNTAIN
    Zhong Zhan-jiang, Huang Xiang-tong, Liu li, Zhang Jun-cheng, Liu Cheng-xia
    Bulletin of Botanical Research    1997, 17 (1): 53-53.  
    Abstract278)      PDF(pc) (57KB)(276)       Save
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    A NEW RECORD SPECIES OF HYALOPSORA IN CHINA
    Xue Yu, Li Zhun-yan, Zhang Ming, Xiao Xiang-Yang
    Bulletin of Botanical Research    1997, 17 (1): 54-55.  
    Abstract299)      PDF(pc) (89KB)(316)       Save
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    NEW RECORDS OF FERNS FROM JIANGXI, CHINA
    Chen Shao-feng, Xie Qing-hong, Cheng Jing-fu
    Bulletin of Botanical Research    1997, 17 (1): 56-57.  
    Abstract350)      PDF(pc) (85KB)(315)       Save
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    NEW TAXONOMIC MATERIAL OF THE GENUS OXYTROPIS (PALL.) DC.
    Qian Guan-ze, Liu Lian-fen, Wang Xiu-zhi
    Bulletin of Botanical Research    1997, 17 (1): 58-59.  
    Abstract215)      PDF(pc) (95KB)(361)       Save
    The author agreed to the opinion of Mr.Zhao Yizhi that Oxytropis hailarensis Kitag.is just the species O.oxyphylla (Pall.) DC.but suggested that the name of its variety should be O.oxyphylla (Pall.) DC.var. psilocarpa (Kitag.) G.Z.Qian.
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    COMPARATIVE ANATOMY ON THE STIPES AND RHIZOMES OF THE FERN GENUS LEPISORUS
    Yu Shun-li, Lin You-xing
    Bulletin of Botanical Research    1997, 17 (1): 60-64.  
    Abstract242)      PDF(pc) (195KB)(381)       Save
    The stipes and rhizomes of Lepisorus including 60 species are investigated.Their transections are observed.The most number of the stipes is 7.The least number of stipes is 2.Acording to the number and form of the vascular bundles, they are divided into 4 types.From the base of stipes to the top, vascular bundles gradually combine, and number gradually reduce.The rhizome sclerenchyma of summer green species is less than that of evergreen species.The rhizome is dictyostelis, with a number of meristeles, varing from 5 to 16.Each meristeles has platelike xylem, surrounded by the phloem.The genus is divided 6 sections.They are Sect.Macrophyton, Sect.Thunbergianus, Sect.Contortus, Sect.chartoceophyton, Sect.Hymenophyton, Sect.Coriacephyton.
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    ANATOMICAL STRUCTURES OF YOUNG STEMS AND LEAVES OF SOME CARAGANA SPECIES WITH THEIR ECOLOGICAL ADAPTABILITIES
    Chang Zhao-yang, Zhang Ming-li
    Bulletin of Botanical Research    1997, 17 (1): 65-71.  
    Abstract298)      PDF(pc) (308KB)(333)       Save
    We deal with the anatomy of young stems and leaves of some Caragana species, the results are as follows:the young stems of all five observed species are identical in general structure, which have the characteristics of 5-7 cortical strands of fibers and developed periderm, in accordance with those of some other species by previous reports.The structure differences of leaves of eight observed species are mainly in the following aspects:with or without hypoderm, differential degrees of palisade and spongy tissue, and quantities of tanniniferous contents in mesophyll.The specialization of anatomical structure in Caragana erinacea, a species of high altitude representatives of Xizang (Tibet) and Sichuan, reflects the adaptation to special habitat of high altitude and cold, and this enablesa plant to differentiate strongly into xeromorphic structure.Therefore, it is of obvious significance in ecological adaptability.
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    A STUDY ON THE SPORE MORPHOLOGY OF MONOMELANGIUM PULLINGERI
    Wang Quang-xi, Chang Ying, Bao Wen-mei
    Bulletin of Botanical Research    1997, 17 (1): 72-74.  
    Abstract260)      PDF(pc) (192KB)(129)       Save
    In the present paper, the morphological characteristics of the spores of Monomelangium pullingeri (Bak.) Tagawa were studied by light and scanning electron microscope.The spore is monolete, with a unique perispore.The perispore surface is hairlike under the light microscope and is dense reticulum mingled by fibrous sculptuces and crowded up into lophos under the SEM.The exospore is smooth or fine granulate.
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    STUDY ON MORPHOLOGY OF FOLIAR GLANDULAR HAIRS IN MENTHA SACHALINENSIS KUDO
    Yu Li-jie, Cui Ji-zhi, Zhang Da-wei, Wang Feng-chun
    Bulletin of Botanical Research    1997, 17 (1): 75-78.  
    Abstract372)      PDF(pc) (232KB)(294)       Save
    The Structure and development process about glandular hairs on foliar surface of Mentha suchalinensis kudo.in Northeast of china were investegated.There were two types of glandular hairs:The multicellular peltate hairs and the unicellular capitate hairs.The peltate hairs were composed of one base cell, one stalk cell and a head of eight to twelve secreting-cells.The capitate hairs consisted of one base cell, one stalk cell and a uni-celled head.
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    STUDIES ON THE CYTOLOGY OF ATRACTYLODES DC. IN THE NORTH-EAST OF CHINA
    Wang Chen, Xing Xou-fan, Wang Zong-xia, Liu Ming-yuan
    Bulletin of Botanical Research    1997, 17 (1): 79-84.  
    Abstract283)      PDF(pc) (243KB)(298)       Save
    We deals with karyotype data of three species of Atractylodes DC.from the North-east of China, their Karyotype formulae are as follow: Atractylodes chinensis (DC.) Koidz.K (2n)=24=12m+6sm+6st (4SAT), Atractylodes japonica Koidz.K (2n)=24=14m+10sm (4SAT), Atractylodes koreana (Nakai) Kitam.K (2n)=24=10m+14sm (4SAT).The symmetry of the Karyotype of three species is 2B separately.The somatic chromosome numbers of A.japonica and A.koreana are different from previous reports;Meanwhile infrageneric taxonomic treatment and evolutionary relationships are also discussed in this paper combining with morphological data.
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    STUDY ON CYTOLOGY IN LILIUM LANCIFOLIUM THUNB.
    Yang Li-ping, Liu Xue-mei, Zhang Xiao-fang
    Bulletin of Botanical Research    1997, 17 (1): 85-88.  
    Abstract155)      PDF(pc) (192KB)(275)       Save
    We carried out the cytological stady on Lilinm lancifolium in genus Lilium plants.Experiments showed that Lilium lancifolium was homotriploid, and its karyotype is 2n=3x=36=9m (SAT)+3sm+3st (SAT)+3st+3t (SAT)+12t+3T.First reported its meiosis of spore mother cell, and discovered the phenomenons of chromosome lags behind at prophase Ⅱ and delay of chromosome removing spin in newly formed spores.In troploid Lilium lancifolium seed, its chromosome is 29 strips, taking 79% and 27 strips taking 14%.meanwhile, the original place, distribution of Lilium lanlifolium were also discussed.
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    STUDIES ON FERTILITY RESTORER GENE Rf3 AGAINST G-TYPE CYTOPLASMIC MALE STERILE IN WHEAT Ⅱ GENOMIC LIBRARY CONSTRUCTION OF T.TIMOPHEEVI USING TOTAL DNA
    Gao Dong-jie, Cao Hai-ming, Lin Jiang-nan, Wang Tong-chang
    Bulletin of Botanical Research    1997, 17 (1): 89-95.  
    Abstract264)      PDF(pc) (285KB)(261)       Save
    Genomic DNA of T.timopheevi was digested with three restriction enzymes, Pst Ⅰ, Hind Ⅲ and EcoR I.The fragments were ligated with the plasmid pUC119 which was treated with the some enzyme before.The transformation efficiency is 1.20×10 4/ μg.Recombinants were determined by means of α-complementary test, agarose gel electrophoresis and dot hybridization.The recombination frequency is 43.8%.
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    INSTITUTE OF NATURAL RESOURCES ACADEMY OF SCIENCES
    Zhou De-ben, Liang Ming, Guo Chun-jing, Li Jun-xia, Song Xue-dong
    Bulletin of Botanical Research    1997, 17 (1): 96-103.  
    Abstract264)      PDF(pc) (283KB)(205)       Save
    Combining overall investigation with the observation for specific speciments, we have been studying on the biological characteristics of wild Schizandra chinensis (Turcz.) Baill, which has filled the gaps in such study as blossom and fruit-bearing law, monoecism and dioecism, outcome rate, relation of seed sources and seed quality, phenology and etc.
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    STUDY ON SEED FREE AMINO ACID OF THREE SPECIES OF BUPLEURUM L. IN NORTHEAST CHINA
    Wang Hao-you, Shu Ping, Xing Yi, Tang Xue-cai
    Bulletin of Botanical Research    1997, 17 (1): 104-109.  
    Abstract287)      PDF(pc) (229KB)(169)       Save
    In this paper it was analysised that seed free amino acids of 12 populations of three species of Bupleurum in Northeast China, and found that variation among 9 populations of B.scorzonexifolium and interspecific variation among three species was present.
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    PRELIMINARY STUDY ON THE INTRASPECIFIC AND INTERSPECIFIC COMPETITIONS OF GORDONIA ACUMINATA IN ITS COMMUNITY
    Jin Ze-xin
    Bulletin of Botanical Research    1997, 17 (1): 110-118.  
    Abstract242)      PDF(pc) (322KB)(180)       Save
    With the aid of Hegyis' single tree competition index model, we have quantitatively analysed the intraspecific and interspecific competition intensity of Gordonia acuminata at its different developing stages within its own community.The results ws have got show:the intraspecific competition of Gordonia acuminata is more intensive than interspecific competitions with other species of accompanying trees;The competition intensity of competitive tree against objective tree and the size of objective tree are subject to power function, and competition intensity decreases with the increase of the size of objective tree;apart from these, there is a obviously negative correlation between the growth speed of objective tree and competition index.
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    A COMPARISON STUDY OF 5 LEATIUS EDODES STIAINS
    Liu Zuo-xi, Wang Yong-ji, Lui Wei
    Bulletin of Botanical Research    1997, 17 (1): 119-122.  
    Abstract248)      PDF(pc) (157KB)(295)       Save
    After the comparison study on the Cultivation characteristies and nutrient content of 5 Leatius edodes strains, LD6 was proved to be the most excellent strain with more rapid fructification rate, shorter Caltivation period, the highest yield and abundant nutrients.So it was concluded that LD6 was more suitable for commercial cultivation in 5 strains.
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    NEW TAXA OF PUCCINELLIA PARL. FROM XINJIANG
    Cui Da-fang
    Bulletin of Botanical Research    1997, 17 (2): 121-127.  
    Abstract209)      PDF(pc) (298KB)(145)       Save
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    A NEW SPECIES OF FIMBRISTYLIS FROM YUNNAN
    Qian Yi-yong
    Bulletin of Botanical Research    1997, 17 (2): 128-129.  
    Abstract254)      PDF(pc) (95KB)(149)       Save
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    SOME NEW GEOGRAPHICAL DISTRIBUTION PLANTS FROM SHAXI
    Zhang Ji-min, Chen Yan-sheng, He Shan-bao, Xu Guang-yuan
    Bulletin of Botanical Research    1997, 17 (2): 130-135.  
    Abstract229)      PDF(pc) (211KB)(309)       Save
    17 species,3 varieties,1 subspecies,1 form and 4 genera are reported as the new records to Shanxi province.These species are:Lithocarpus elegans (Bl.) Hatusima ex Soepadmo,Pellionia scabra Benth.,Polygonum microcephalum D.Don,Cerastium wilsonii Takeda,Stellaria neglecta Weihe,Epimedium sutchuenense Franch.,Cinnamomum burmannii (C.G.&Th.Nees) f.heyneanum (Nees) H.W.Li,Lindera pulcherrima (Wall.) Benth.var.attenuata Allen,M illettia dielsiana Harms ex Diels,Euodia sutchuenensis Dode,Daphne gemmata Pritz.ex Diels,Aucuba albo-punctifolia Wang var.angustula Fang et Soong,Osmanthus armatus Diels,Tripterospermum coeruleum (Hand.-M azz.) H.Smith.,Sindechites henyi Oliv.,Incarvillea arguta (Royle) Royle,Asystasiella chinensis (S.M oore) E.Hossain,Strobilanthes tetraspermus (Champ.ex Benth.) Druce,Patrinia villosa (Thunb.) Juss.,Patrinia heterophylla Bge.subsp.angustifolia (Hemsl.) H.J.Wang,Festuca sinensis Keng,Deyeuxia scabrescans (Griseb.) M unro ex Duthie var.humilis (Grisb.) Hook.f..The four new recorded genera are:Asystasiella Lindau,Pellionia Gaud.,Sindechites Oliv.,Strobilanthes Bl..All the specimens concerned in this paper are stored in the Herbarium of Northwestern Institute of Botany (UKG).
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    SOME NEW RECORDED PLANTS FROM ANHUI
    Zhang Xiao-ping, Chen Tao, Zhang Guang-fu
    Bulletin of Botanical Research    1997, 17 (2): 136-140.  
    Abstract241)      PDF(pc) (293KB)(196)       Save
    18 species (falling into 18 genera,15 families) were firstly reported as new geographical distributional taxa of Anhui province,namely,Piper hancei Maxim,Piper bambusaefolium Tseng,Hilliella fumarioides (Dunn) Y.H.Zhang et H.W.Li.,Hilliella sinuata (Kuan) Y.H.Zhang et H.W.Li,Euchresta trifoliata Merrill,Ilex memecylifolia Champ.,Daphne papyracea Wall.ex Steud.,Myrsine seemiserrata Wall.,Sinojackia renderiana Hu,Marsdenia sinensis Hemel.,Neanotis wightiana (Wall.ex Wight et Arn.) W.H.Kewis,Callicarpa brevipes (Benth) Hance,Paraphlomis reflexa C.Y.Wu et H.W.Li,M eehania henryi (Hemxl.) Sun ex C.Y.Wu,Pertya sinensis Oliv,Curculigo orchioides Caeritn,Amorphophallus varabilis Blume,Malaxis microtantha (Schltr.) Tang et Wang.All the voucher materials are stored in the Herbarium of Anhui Normal University (HAN U).
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    TWO NEW FORMA OF CYNOGLOSSUM AMABILE FROM YUNNAN
    Dong Xiao-dong, Zhao Hong, Ma Yu-xin, Xie Hang
    Bulletin of Botanical Research    1997, 17 (2): 141-142.  
    Abstract287)      PDF(pc) (81KB)(285)       Save
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    A NEW PLANT OF RHODIOLA
    Meng Yan, Tian Jian-jun
    Bulletin of Botanical Research    1997, 17 (2): 143-143.  
    Abstract320)      PDF(pc) (54KB)(334)       Save
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    A NEW SPECIES OF TYMPANIS
    Song Rui-qing, Xiang Cun-ti, Zhu Tian-bo, Yu Gui-hua, Wen Bao-lian
    Bulletin of Botanical Research    1997, 17 (2): 144-145.  
    Abstract236)      PDF(pc) (105KB)(245)       Save
    Reported a new species of Tympanis, Tympanis schimis Song et Xiang sp.nov.The cultural characteristics and ecological habits were described.The typical specimen was stored in the Mycological Herbarium of Northeast Forestry University.
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    STUDY ON THE GEOGRAPHICAL COMPOSITION OF THE FLORA OF FOREST VEGETATION OF WUYI IN ZHEJIANG
    Liu Peng, Chen Li-ren, Zhang Chun-da
    Bulletin of Botanical Research    1997, 17 (2): 146-152.  
    Abstract192)      PDF(pc) (270KB)(263)       Save
    The paper presented the flora of the forest vegetation of Wuyi,Zhejiang province.These geographical compositions are rich with woody plants,abundant ancient,rare and nearly extinct plants;the temperate region elements and cold subtropical region elements are in the dominant position and the geographical compositions connect widely with the flora of the world.These are 14 distribution-types in Wuyi.East Asia、Pantropic、East Asia-North America discontinuesly distributions contain more genera and the Mediterranean.West to Central Asia.Temperate Asia and Cosmopolitan distributions are in less genera.
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    THE BIOLOGY FEATURES AND CONSERVATION OF ELAEAGNUS MOLLIS A RARE AND ENDANGERED PLANT SPECIES
    Xie Shu-lian, Ling Yuan-jie
    Bulletin of Botanical Research    1997, 17 (2): 153-157.  
    Abstract267)      PDF(pc) (198KB)(368)       Save
    Elaeagnus mollis is one of Chinese endemic plants and it is considered an endangered plant on the brink of extinction.In this paper,a broad literature has been reviewed concerning its habit,morphology、structure、karyotypes、growth、traits、geographic distribution,ecological and community characteristics,nitrogenase activity of root nodules and chemical constituents.Consequently,the reasons for making the plants to the endanged state have been analysed and the effective measures have been put forward to conserve the rare species.
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    A POLLEN MORPHOLOGY STUDY ON TWELVE SPECIES OF SEDUM IN ANHUI
    Zheng Yang
    Bulletin of Botanical Research    1997, 17 (2): 158-162.  
    Abstract281)      PDF(pc) (191KB)(340)       Save
    The pollen grains of twelve species of Sedum from Anhui province were systematically observed under LM and SEM.The results indicate that sedum is a nice natural taxon and more advanced in pollen grains.According to palynology,it is proved for the first time that Sedum kiangnanense is different from Sedum emarginatum.
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    ANATOMICAL STUDIES ON THE PRIMARY VASCULAR SYSTEM OF THE SEEDLING OF SOLANUM MELONGENA L.
    Zhang Shu-ming, Gu An-gen, Wang Li-jun, Zhao Li-hui
    Bulletin of Botanical Research    1997, 17 (2): 163-167.  
    Abstract299)      PDF(pc) (248KB)(120)       Save
    The transition form of organs of the primary vascular tissue in CNZ was telome elongation type was showed in anatomical observation on primary vascular system of seedlings of Solanum melongena according to the theory of CNZ.This form was different from the mesome elongation type in CNZ in some primitive family and genus,such as Ranunculaceae in Choripetae etc.The lower part of CNZ was shorter.But the middle one was extremely long.therefor,the cotyledon node zone-root transition region was extraordinary short,same as the connection region of vascular tissue between the epicotyl shoot zone and the cotyledon node zone.The transform of vascular tissue mainly occured in the middle of CNZ.
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    ADVANCEMENT OF RESEARCHES ON PHOTOPERIOD SENSITIVE CYTOPLASMIC MALE STERILE OF D 2 TYPE WHEAT
    Jiang Jing, Liu Wei-hua, Li Ji-lin
    Bulletin of Botanical Research    1997, 17 (2): 168-173.  
    Abstract170)      PDF(pc) (242KB)(147)       Save
    The combination of D 2 type cytoplasm and certain nucleus can cause pistillo dy of stamens under a long-day condition (≥ 15 hours).This paper,which discussed the morphology、histology and molecular biology of male sterility,provided reference materials on the development of PCMS wheat with a view to promoting the utilities of PCMS in the crossbreeding of wheat.
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    A STUDY ON TOXICITY OF SODIUM CHLORIDE IN HORDEUM VULGARE
    Yi Hui-lan, Wang Qiang
    Bulletin of Botanical Research    1997, 17 (2): 174-179.  
    Abstract155)      PDF(pc) (235KB)(239)       Save
    We studied the effects of root tip cells treated Hordeum vulgare with NaCl solution,observed sister chromatid exchanges (SCE) and mitotic division.When treated concentration of NaCl solution is inhanced,SCE frequency increased significantly but cell division decreased.Our date of seedlings growth inhibition suggest that this is concentration-dependent.The higher concentration is taken,the slower seedlings grow.It shows that concentration control the splits of cells.High concentration leads to DNA recombination.The results indicate that high concentration of NaCl solution is toxic to growth of seedlings and cells,it is potential mutagenic and classtogenic.
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    BREEDING COLD-RESISTANT BREEDS OF GRAPE WITH CROSS OF BETWEEN VITIS AMURENSIS RUPR.AND BETTER BREEDS
    Bai Qing-wu, Li Bo, Zhang Dong-xiang, Chen Hui, Chen Guo-quan
    Bulletin of Botanical Research    1997, 17 (2): 180-183.  
    Abstract230)      PDF(pc) (159KB)(404)       Save
    In the cross of between better breeds and Vitis amurensis Rupr.that was cold-resistant,the cold-resistant ability and quality of grape would be strengthen and improved with generations gradually.After systhesize cross of high generation,a series of breeds and/or strains with cold-resistant and better economic characters were breeded in this study.
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    STUDIES ON INHERITANCE AND VARIATION OF PEPPER AND TOMATO OF SPACEFLIGHT BREEDING
    Sun Yie-qing, Li Yu-fen, Chen yan, Guo Ya-hua, Deng Li-ping
    Bulletin of Botanical Research    1997, 17 (2): 184-189.  
    Abstract270)      PDF(pc) (222KB)(334)       Save
    In order to probe the influence on inheritance and variation of crops in space flight,this paper analyzed the conditions of the later generations of pepper and tomato by satelite board and repeat board,determined the plant growing,output of vegetable,physiological,biochemical and cytological characteristic.The results showed:Space environment made vegetable seeds produced variation.Space flight will be a new way to improve vegetable pomising lines.
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    A PRELIMINARY STUDY ON COLD RESISTANT PHYSIOLOGY OF RUTA GRAVEOLENS
    Wan Qing-lin, Liu Ming-yuan
    Bulletin of Botanical Research    1997, 17 (2): 190-194.  
    Abstract259)      PDF(pc) (195KB)(123)       Save
    Some physiological changes of cold resistance was investigated,when Ruta Graveolens Linn was planted in high latitudes region far from its original place without low temperature under zero.Results showed that,with decrease of temperature,soluble sugar content、soluble protein content and catalase activity increased.Memberance permeability is stable,starch content declined,rate of respiration fell gradually.But cyanide resistant respiration is more steady.It didn't decline appearantly until the temperature dropped to -20℃ while cyanide resistant respiration played a dominant role.
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    STUDY ON CHANGES OF EITHER CHLORINE CONTENT OR MEMBRANE PERMEABILITY OF LEAVES WITH SEASONS AND HARDINESS OF TREES
    He Yan-ling, Zhang Dong-xiang, Zheng Wei-hong, Li He-yu, Yang Li-rui
    Bulletin of Botanical Research    1997, 17 (2): 195-199.  
    Abstract258)      PDF(pc) (202KB)(135)       Save
    This paper show that:Both chlorine content and memberane permeability of leaves of trees increased with seasons.Chlorophyll contents of trees polluted by chlorine decreased,remarkably.Absorptive capacity of trees is not equal to hardiness completely.Though capacity of chlorine absorptive of elm was more intensive than other trees,hardiness of elm against chlorine was in middle levels.Either capacity of chlorine absorption or hardiness of poplar was in middle levels,which of boxelder in lower level.Willow possessed intensive capacity of chlorine absorption,and could withstand chlorine harm.
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