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10 September 2002, Volume 31 Issue 03 Previous Issue    Next Issue

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A preliminary study on endogenous rooting inhibitors in Eucalyptus LH21 clone WU Guang-hong, ZHAN Fu-jian, HUANG Zhuo-lie, OU Qiang-yi, ZHANG Zhi-ming 2002, 31(03): 1-5.  Abstract ( )   PDF (188KB) ( )   The endogenous rooting inhibitors in the branch of LH21 clone (Eucalyptus urophylla×Eucalyptus camaldulensis) were studied by sprouting experiments of the rooting of cuttings and germination rate of seeds. The crude extract was purified by organic solvent extraction methods and silica gel column chromatography and five fractions were separated. The results indicated that the inhibitory action of five fractions were different. According to the analysis of Duncan's SSR, two fractions have strong inhibited effects to rooting. Related Articles | Metrics

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Effects of waste molasses from sugarcane on rooting of cutting hypocotyl of mung bean HUANG Qun-sheng, YANG Li, YUAN Yi-yu, LI Ling 2002, 31(03): 6-8.  Abstract ( )   PDF (122KB) ( )   Effects of waste molasses from sugarcane on rooting of mung bean cutting hypocotyl were studied. The results showed that the number, length and dry weight of roots of cutting hypocotyl of mung bean increased and the rooting extend was expanded when treated with 1 000~7 000mg/L waste molasses. The content of soluble sugar in root and the activity of adventitious root system were also improved. Related Articles | Metrics

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Chemical constituents in root of Premna microphylla ZHENG Zong-zhong, XU Su-ying, WANG Ding-yong 2002, 31(03): 9-11.  Abstract ( )   PDF (132KB) ( )   Seven compounds were isolated from the roots of Premna microphylla. By combination of chemical methods and spectral analyses, structures of the compounds were identified asβ-sitosterol (1), palmitic acid (2), trans-p-methoxycinnamic acid (3), eugenin (4), luteolin (5), luteolin-7-O-β-D-glucopyranoside (6) and pedalitin (7). All of these compounds were obtained from this plant for the first time. Related Articles | Metrics

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Preliminary study on breeding of broccoli male sterile line LIN Li-xian, ZHANG Ke-ping 2002, 31(03): 12-15.  Abstract ( )   PDF (151KB) ( )   Broccoli male sterile material CMS 94008 was used as sterile source. Through cross-breeding and continuous back-cross breeding, broccoli cytoplasmic male sterile (CMS) lines with stable sterility and good commercial characters were bred. Taking CMS92100, CMS93-2,CMS9905,CMS9905, CMS95234 and their male parents as samples, the morphological characters and agronomical characters of sterile lines were described. Related Articles | Metrics

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Effects of irradiation on preservation and physiological-biochemical index of Brassica oleracea ZHUANG Rong-fu, HU Wei-ji, LIN Guang-rong, CAI Long-xiang 2002, 31(03): 16-18.  Abstract ( )   PDF (121KB) ( )   Treated with 60Co-γ irradiation at 0.5kGy, 1.5kGy and 2.5kGy, respectively, Brassica oleracea packed with 0.08mm polythene plastic was stored at 12-21℃. The results showed that 2.5kGy irradiation gave the best result for preservation and Brassica oleracea kept fresh after 7-day storage while the control all turned yellow and lost commercial value. The physiological-biochemical change of Brassia oleracea treated with 2.5kGy irradiation was also analyzed. Results were as follows:the contents of Methionine(Met), ethylene production and respiratory intensity decreased by 72.23%, 72.41% and 71.95%, respectively; the contents of chlorophyll, anthocyania, Vit C, reducing sugar and protein had no much change compared to those of the controls. 7 days after irradiation treatment, the contents of Met, ethylene production and respiratory intensity increased to the levels as before and the contents of chlorophyll, anthocyania, Vit C, reducing sugar and protein were higher than those of the controls. Related Articles | Metrics

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Effects of boron on growth and some physiological-biochemical indexes of Brassica campestris LIANG Shi 2002, 31(03): 19-22.  Abstract ( )   PDF (163KB) ( )   The effects of boron on growth and some physiological-biochemical indexes of Brassica campestris were studied. The results showed that the growth, bolting and flowering of Brassica campestris were inhibited at boron deficiency, and boron deficiency resulted in a significant decrease in pollen activity, the contens of chlorophyll and the activity of superoxide dismutase (SOD). Meanwhile, the contents of soluble sugar and malondialdehyde (MDA), the activity of peroxidase (POD) increased. Related Articles | Metrics

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Study on flora and species diversity in Phoebe bournei natural forests in Yongchun,Fujian ZOU Xiu-hong 2002, 31(03): 23-26.  Abstract ( )   PDF (166KB) ( )   The floral component, vertical structure and species diversity of Phoebe bournei natural forests in Yongchun County, Fujian were evaluated. There exists 231 species of vascular plants under 87 families and 172 genera. The floristic analysis of geographic element indicated that the flora was derived typically from tropics, and dominated by pan-tropic element and tropical Asian element. Vertical structure of flora was complicated and the diversity index of shrub layer was the highest of all. Related Articles | Metrics

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Research on niche of Castanopsis tibetana population and its main associated species in Sanming,Fujian SONG Xiao-ying 2002, 31(03): 27-30.  Abstract ( )   PDF (166KB) ( )   Niche breadth and niche overlap of Castanopsis tibetana population with 8 main associated species were quantitatively analyzed. The results show that the niche breadth of dominant species is generally large; the overlap of the wide-niche species to narrow-niche species is greater than that of the narrow-niche species to wide-niche species. The niche characteristics and spatial pattern of Castanopsis tibetana were also discussed. Related Articles | Metrics

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Effect of ‘Huanqiu’ natural organic fertilizer in banana fields HUANG Xi-dong, GUO Jian-hui, HUANG Da-bin, HUANG Li-xin, DAI Jin-liang 2002, 31(03): 31-34.  Abstract ( )   PDF (166KB) ( )   Field tests of application with ‘Huanqiu’ natural organic fertilizer on banana were conducted in 2000. The results showed that when treated mainly with ‘Huanqiu’ natural organic fertilizer and added with chemical fertilizers in proper quantities, the yield of single plant increased by 13.6%-19.2%. Meanwhile, the fruit finger lengthened and enlarged, with the content of starch increased in fruit and the content of organic matter in soil was also improved. Related Articles | Metrics

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A preliminary research on the vegetation of Jiufu Mountain in Youxi County,Fujian ZHENG Shi-qun 2002, 31(03): 35-40.  Abstract ( )   PDF (226KB) ( )   The vegetation cover of Jiufu Mountain in Youxi County were studied. Central subtropical evergreen broad-leaved forest was the main type of vegetation and its geographic feature was described. The regional position and succession trend of forest vegetation were also discussed. Related Articles | Metrics

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Fig tree resources and their protection in Fujian Province TAN Zhong-qi, DING Yin-long, LIN Yi-ming 2002, 31(03): 41-44.  Abstract ( )   PDF (157KB) ( )   Distribution and economic value of fig tree resources in Fujian are described and some suggestions for protection are also put forward. Related Articles | Metrics

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Bamboo resources and their sustainable development in Yong'an City,Fujian Province LIN Hai-qing 2002, 31(03): 45-51.  Abstract ( )   PDF (247KB) ( )   Situated in the centre of Fujian Province, Yong'an is abundant in bamboo resources. There exists 13 genera and 55 species, including 7 varieties and 4 cultivated varieties, of which some species are commercial bamboos. Some suggestions on their exploitation and sustainable development were recommended in the paper. Related Articles | Metrics

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Medicinal plant resources of Myrsinaceae in Guangdong Province XIANG Chun-ling, FENG Zhi-jian 2002, 31(03): 52-55.  Abstract ( )   PDF (147KB) ( )   The species, distribution and curative effect of medicinal plant of Myrsinaceae in Guangdong Province were described. Some suggestions for protection and utilization of the plant resources were also recommended. Related Articles | Metrics

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Investigation of landscape plant on Fuzhao expressway in Fujian Province SHI Jin-sheng 2002, 31(03): 56-62.  Abstract ( )   PDF (307KB) ( )   According to the investigation from 24sample plots on Fuzhao expressway in Fujian Province, there exists 92 plant species, including 32 species of trees, 49 species of shrubs, 3 species of bamboos, 4 species of vines and 4 species of turfgrasses. The landscape plants consist of flowering plants (35%), foliage plants (25%) and hemp palm trees (25%). Fuzhao expressway reveals a significant tropical and subtropical scene. Related Articles | Metrics

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Studies on flowering and fruiting characteristics of Strelitzia reginae CAI Bang-ping, WANG Zhen-zhong 2002, 31(03): 63-65.  Abstract ( )   PDF (121KB) ( )   Strelitzia reginae was introduced and cultivated in Xiamen and its flowering and fruiting characteristics were studied. The results showed that the initial flowering season of Strelitzia reginae seedling was at the forth year after planting and the full-bloom stage was in summer and autumn; each inflorescence could produce 4-6 fruits and the mature period of fruit was 80-140d. The growth rhythm of plant height and characteristics of seed germination were also observed. Related Articles | Metrics

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Tissue culture of Anthurium scherzerianum CAI Wei-fan 2002, 31(03): 66-68.  Abstract ( )   PDF (122KB) ( )   The differentiation of Anthurium scherzerianum explants (leaves) is related to the varieties and different parts of leaf. The experimental results of suggested that the optimal media for different culture stages were:(1) Induction of adventitious buds:modified Nitsch (NH4NO3 200mg/L)+6-BA 1.0+2,4-D 0.1; (2) Successive transfer culture and propagation of shoots:modified Nitsch (NH4NO3 720mg/L)+6-BA 0.5; (3) Differentiation of roots:modified Nitsch (NH4NO3 720mg/L). Related Articles | Metrics

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Tissue culture of Hylocereus undatus HONG Li-ping, GUO Cui-ying, ZHENG Ming-qiong 2002, 31(03): 69-70,77.  Abstract ( )   PDF (125KB) ( )   Using the young stem from top necrosis as explants, tissue culture of Hylocereus undatus was conducted. The results suggested that the appropriate medium for different culture stages were:(1) Induction of adventitious buds:MS+NAA 0.5mg/L+6-BA 5.0mg/L; (2) Differentiation and subculture of rosette buds:MS+NAA 0.5mg/L+6-BA 5.0mg/L; (3) Rottage:MS+NAA 0.2mg/L+IBA 1.0mg/L. Related Articles | Metrics

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Study on tissue culture of Echinocactus grusonii var. albispinus LIN Li-qiong, LIU Jing-chun 2002, 31(03): 71-73.  Abstract ( )   PDF (127KB) ( )   Taking the spheroids that produced from seeds in bacteria free environment as explants, tissue culture of Echinocactus grusonii var. albispinus was conducted. The results showed that the spheroids could differentiate into substantial new spheroids on MS+6-BA 1.0mg/L+NAA 0.1mg/L when the apical point of explants were removed. When the concentration of 6-BA was 4.0~6.0mg/L, the callus differentiation could be induced, but the rate of induction was low with longer period. The optimal medium for subculture was MS+6-BA 0.5mg/L+NAA 0.1mg/L and 1/2MS with or without NAA was best for rooting. Related Articles | Metrics

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Study on grafting techniques of cactus ZHOU Qun, LIU Zhi-zhong 2002, 31(03): 74-77.  Abstract ( )   PDF (151KB) ( )   Grafting is an important techniques for cactus cultivation and propagation. Grafting techniques and methods of cactus were described and some causes for survival percent were discussed in this paper. Related Articles | Metrics

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Progress in molecular mechanism of cytoplasmic male sterility and fertility restoration in plant HAO Gang-ping, YANG Qing 2002, 31(03): 78-84.  Abstract ( )   PDF (267KB) ( )   Progress in molecular mechanism of cytoplasmic male sterility (CMS) in plants are reviewed, including DNA fragment of mitochondrial associated with CMS, molecular mechanism of CMS induced by these DNA fragments, mechanism of cytoplasmic fertility restoration and cloning of fertility restoration gene. Further studies in the future are also discussed. Related Articles | Metrics