Archive

10 November 2004, Volume 33 Issue 04 Previous Issue    Next Issue

---

For Selected:

Download Citations EndNote Ris BibTeX

Toggle Thumbnails

Select

Effect of Temperature on the Antioxidative Activities of Rose ZENG You-wei, XU Liang-xiong, LONG Gang, PENG Yong-hong 2004, 33(04): 1-4.  Abstract ( )   PDF (374KB) ( )   Stored at 25℃ and 4℃ for 5 days, respectively, the activities of scavenging DPPH· and.OH free radical of extracts from rose (Rosa rugosa) increased during the first four days and decreased at the fifth day; the capacity of scavenging O2· free radical and Vc content increased consistently during the whole storage period. The co-relationship analysis showed that DPPH-scavenging activity and polyphenlic content, O2·-scavenging activity and Vc content were significant at 5% level. Low temperature storage was better for maintaining the antioxidative activity of rose flower. Related Articles | Metrics

Select

Effects of Different Kinds of Interstock on the Content of Carbohydrates in Scion's Leaves and Rootstock's Roots ZHOU Kai-bing, XIA Ren-xue, WANG Gui-yuan, WU Qiang-sheng 2004, 33(04): 5-7,14.  Abstract ( )   PDF (337KB) ( )   Taking Huahong navel orange/three kinds of interstock/Poncirus trifoliate as materials, the field experiment is conducted to study the double effects of different kinds of interstock on the content of carbohydrates in scion's leaves and rootstock's roots. The results indicated that three kinds of interstock had no effects on the tendencies of the annual changes in total soluble sugars in scion's leaves and in the contents of starch and total carbohydrates in rootstock's leaves. With the respect of annual changes, three kinds of interstock varied in early tendency of starch content and in late tendency of total carbohydrates in scion's leaves and in tendency of total soluble sugars in rootstock's roots. The carbohydrate contents in most of different periods had significant difference among three kinds of interstock. Related Articles | Metrics

Select

Effects of Drought Stress on Malondiadehyde Content and Cell Membrane Permeability in Tobacco Leaves QIN Peng, LIU Ye-ju, LIU Fei-hu 2004, 33(04): 8-10.  Abstract ( )   PDF (409KB) ( )   The malondiadehyde content and cell membrane permeability of five pot-cultured tobacco cultivars and lines under drought stress were studied. The results showed that the malondiadehyde content increased at first, and then decreased with the increase of drought stress, while the cell membrane permeability kept increasing during drought stress; after rewatering the cell membrane permeability soon recovered while the malondiadehyde content needed a long time to restore. The cell membrane permeability responded to some extent of drought stress and the stabilization of malondiadehyde content might be meaningful to drought resistant of tobacco. Related Articles | Metrics

Select

Study on Relationship among the Glucosinolate-containing Plants by Food Preference of Plutella xylostella WU Wei-Jian, GAO Ze-zheng 2004, 33(04): 11-14.  Abstract ( )   PDF (387KB) ( )   The experiment of food preference of Plutella xylostella was conducted to study the blood relationship of glucosinolate-containing plants. Based on the data of food preference, the feeding index of Plutella xylostella was generated and the dendrogram in SPSS was constructed by using hierarchical cluster. The results showed that 18 species were clustered into 6 groups. It is basically consistent with the traditional morphological taxonomy (Taktajan and Cronquist system) and consistent with the results of nucleotide sequences from the plastid gene rbc L. Related Articles | Metrics

Select

Effects of Ozone Water on Postharvest Physiological and Biochemical Indexes of Litchi LI Jie, ZHU Bi-yan, DING Si-bing, ZHANG Ming-guang 2004, 33(04): 15-18.  Abstract ( )   PDF (362KB) ( )   This experiment was conducted to study the effect of different concentrations of ozone water on the contents of anthocyanin, flavonoid and the activities of PPO and POD in peel, and titrable acidity and sugar contents in juice of postharvest fruit of litchi. Compared with CK, the contents of anthocyanin and flavonoid decreased more quickly after ozone water treatment. The activity of PPO was lower than CK and POD activity was higher than CK while the titrable acidity and sugar contents had little variation. It indicated that a definite concentration of Ozone water could keep the litchi fruit from browning. Related Articles | Metrics

Select

Effects of Dimethoate on Activities of POD,SOD,CAT and MDA Content in Spinach Leaves YANG Tao, LI Chuan-yong, TANG Hui-hua 2004, 33(04): 19-21,18.  Abstract ( )   PDF (535KB) ( )   Effects of different dimethoate dosage on antioxidant enzymes (POD、SOD、CAT) and MDA content in spinach leaves after spraying at different time were studied,and the residues of dimethoate in spinach were also examined. The results showed that dimethoate could increase POD and CAT activities and MDA content,while SOD activity tended to decrease in some treatments;as the time prolonged after spraying,the residues of dimethoate in spinach also decreased. Related Articles | Metrics

Select

Ecological Distribution and Salt Tolerance of Terminalia catappa LIN Xi, YAN Zhong-zheng, WANG Wen-qing 2004, 33(04): 22-25.  Abstract ( )   PDF (327KB) ( )   The distribution of Terminalia catappa on coast areas of Hainan Island was investigated, and the effects of substrate salinity on artificially cultured T. catappa seedlings in greenhouse are also studied. The results showed that T. catappa had a higher salt tolerance. It could grow normally in the soil with a salinity of 17.09‰. In the greenhouse, the seedling of T. catappa could survive at 10‰ salt treatment. The results also indicated that a salinity of 10‰ could increase the chlorophyll content in seedling leaves, which a salinity of 20‰~30‰ decreased; photosynthetic rate in leaves tended to decrease under salt stress, and soluble sugar content tended to increase with increasing salinity. Related Articles | Metrics

Select

Study on Karyotype and Meiosis of Carica papaya SHEN Yan-Hong, CHEN Xiao-Jing, LU Bing-guo 2004, 33(04): 26-28,25.  Abstract ( )   PDF (433KB) ( )   The research results of karyotype and meiotic behaviors of Carica papaya indicated that the chromosome number is 18. They are composed of 9 metacentric chromosomes. The karyotype formula is 2n=2x=18m. 9 bivalents had been observed during diakinesis and metaphase I. No abnormal phenomena such as chromosome bridges and lagging were observed. Related Articles | Metrics

Select

Callus Induction of Phalaenopsis WU Cheng-hou, YE Xiu-lin, LIANG Cheng-ye 2004, 33(04): 29-31.  Abstract ( )   PDF (244KB) ( )   The experimental results of callus induction of Phalaenopsis showed that ovaries of Phalaenopsis after 30 days of pollination were the optimal materials for callus induction. When the ovary slices were inoculated on 1/4 MS medium supplemented with 2,4-D 1.0mg/L, 6-BA 0.1mg/L and 3.0% sucrose, the induction rate of callus was 90.0%. Related Articles | Metrics

Select

Effects of Paclobutrazol and Triadimofon on the Micropropagation of Gerbera jamesonii MAYILAAi-li, LIAO Fei-xiong 2004, 33(04): 32-34.  Abstract ( )   PDF (2636KB) ( )   Adding 0.2, 0.4 and 0.6 mg/L paclobutrazol to MS medium, a higher propagation rate of stocky plantlets (Gerbere jamesonii) were achieved, and the plantlets rooted better in subculture and had higher transplanting survival percentage than the control. Paclobutrazol at 0.2~1.0mg/L in rooting culture improved the development of root and increased the root number of plantlets. Triadimofon at 0.1mg/L also reduced the height of plantlets and increased the propagation rate. Related Articles | Metrics

Select

Rapid Propagation of Musella lasiocarpa ZHANG Shu-he, LIN Jiang-bo, GAN Yong-hui, LIN Jia-geng, WU Wei-jian, ZHOU Long-sheng 2004, 33(04): 35-36,31.  Abstract ( )   PDF (242KB) ( )   The haustorial bud explants from Musella lasiocarpa were cultured on MS medium supplemented with 6-BA and IBA at different concentration to induce regeneration plantlets. The results indicated that the haustorial buds can be induced on medium of MS+6-BA 1.0mg/L+IBA 0.5mg/L after 30 days. Proliferation medium was MS+6-BA 0.3mg/L+IBA 0.1mg/L. The reproduction coefficient was more than 2.83. The optimal medium for rooting was MS+NAA 1.0mg/L and the rooting percentage was 100%. The transplant survival percent was more than 95%. Related Articles | Metrics

Select

Somatic Embryogenesis and Plantlet Regeneration of Euphorbia pulcherrima ZHU Gen-fa, LU Fu-bing, CHEN Ming-li, WANG Bi-qing 2004, 33(04): 37-38,41.  Abstract ( )   PDF (246KB) ( )   The callus induction varied in different parts of Euphorbia pulcherrima. The young stem was more effective than the young inflorescens, and the young leaf was less effective than the formers. The growth speed of callus depended mainly on auxin, and was promoted by cytokinin. Embryogenesis frequency of the callus induced on MS medium with 6-BA and NAA was higher than those induced on MS medium with only NAA. Suspension culture was regarded as a intermediate step to promote embryo production. The concentrations of 6-BA in the MS medium has no influence on the embryo germination frequency. Doubling the concentration of KNO3 in the medium promoted embryo germination. Related Articles | Metrics

Select

Propagation Technique of Vaccinium ashei NIE Fei, LIAO You-jiang, HE Jian, SHI Jiang-hong, ZHU Zhong-rong 2004, 33(04): 39-41.  Abstract ( )   PDF (249KB) ( )   Taking the shoot sections with single buds and the leaves with stalks as explants, cultured on the modified WPM medium supplemented with zeatiu to induce new shoots, then dipping them into IBA at 1 000~2 000mg/L or ABT NO.1 at 2 000mg/L, and cutting on the substrate, i.e., peat dust:bark powder with 3:1, the rooting percentage was more than 82%. After storing at 4℃ for 4~5 months and treated with gibberellin at 100mg/L, the seed germination percentage was over 85.6%. Dipping the new shoots into IBA at 1 000mg/L and cutting on the substrate, i.e., mycrohiza soil:peclite with 1:1, the rooting percentage was more than 71.6%. Related Articles | Metrics

Select

Study on The Life Form Spectrum of 3 Wide-leaf Plantation in Tropical Mountain,Yunnan Province CHEN Hong-wei, LI Jiang, MENG Meng, FENG Xian, LIU Yong-gang, ZHOU Bin 2004, 33(04): 42-44.  Abstract ( )   PDF (240KB) ( )   The life form spectrum, leaf size spectrum of understory plants of Altingia excelsa, Acacia mangium pure forest and Acacia mangium+Betula alnoides mixed forest in tropical mountain were studied by using plot method (quadrat investigation method). The results showed that Phanerophytes was the dominant life form in three types. The percentage of Miphanerophytes was the highest in the Phanerophytes. The dominant leaf size of the three kinds of forests was Mesophyll. Related Articles | Metrics

Select

The Selection of Elite Trees of Eucalyptus grandis with Cold Resistance and Fast-growing Characteristics in the Middle Part of Fujian Province GUO Xiang-quan, XU Shao-hong, ZHENG Jing-chi, LIN Fang-liang, XU Jie-mei, LIU Jin-shan 2004, 33(04): 45-47,51.  Abstract ( )   PDF (287KB) ( )   Through natural selection and dominant trees selection, several excellent individuals of Eucalyptus grandis with fine adaptive characteristics were selected. Based on the different selection standards, 21 excellent individuals with cold resistance and adaptability and 13 dominant tree individuals with cold resistance and fast growing characteristics had been selected. Using clone propagation method and treating the cuttings with ABT at 1000mg/L, the clone nursery and excellent individuals gene pool were established. Related Articles | Metrics

Select

The Ornamental Plants of Ficus and its Utilization in Guangdong Province JIANG Qian-cai, HUANG Yue-chao, LI Zeng-xiang 2004, 33(04): 48-51.  Abstract ( )   PDF (272KB) ( )   Species of Ficus in Guangdong Province are described, in which 30 species with high ornamental value on their distribution, ornamental characteristics and the use in landscape are introduced. Some suggestions on their protection, development and utilization are also presented. Related Articles | Metrics

Select

Establishment of Core Collection in Tea Germplasm WANG Xin-chao, YANG Ya-jun, CHEN Liang, YAO Ming-zhe 2004, 33(04): 52-56.  Abstract ( )   PDF (303KB) ( )   This paper introduced the core collection and its concept, principium and research contents. The authors pointed out that developing a core collection of tea plant is an effective way to solve the contradiction between basic research and pragmatic needs at financial insufficient condition. A tentative basic procedure and plan for establishing tea plant core collection were put forward. Related Articles | Metrics

Select

The Negative Effect of GMC on the Genetic Diversity and Countermeasures LIN Xiu-chun 2004, 33(04): 57-62.  Abstract ( )   PDF (328KB) ( )   The commercialization of Genetically Modified Crops (GMC) has developed rapidly since 1997. On the one hand, GMC possess superior agronomic features and great economic benefits, on the other hand, they have caused great controversy because of its negative effects. Based on the features and the development of GMC, the negative effects of GMC on genetic diversity are evaluated in this paper, and some countermeasures should be taken in China. Related Articles | Metrics

Select

Tissue Culture and Rapid Propagation of Eremophila macdonnellii ZHANG Jian-kang, LUO Jian-xun 2004, 33(04): 63-63.  Abstract ( )   PDF (130KB) ( )   Related Articles | Metrics

Select

Tissue Culture of Pedilanthus tithymaloides “Variegatus” Leaves and their Plantlet Regeneration SHI He-ping, He Han-jie 2004, 33(04): 64-64.  Abstract ( )   PDF (295KB) ( )   Related Articles | Metrics

Select

Advances in Embryo Development of Longan LIANG Wen-yu, CHEN Wei, SONG Rui-feng, ZHANG Feng 2004, 33(04): 65-68.  Abstract ( )   PDF (269KB) ( )   Recent advances in embryo development of longan are summarized. The existing problems in this field are proposed and their perspects for the development are also discussed. Related Articles | Metrics

Select

A Review of Advances in Genetic Engineering of Cold-resistance in Plants LI Xin-guo, ZHANG Jian-xia, SUN Zhong-hai 2004, 33(04): 69-73.  Abstract ( )   PDF (368KB) ( )   Low temperature is one of important factors for plants. Recent progress in genetic engineering of cold-resistance in plants, i.e., transforming cold-induced gene, transforming fatty acid desaturase gene and transforming anti-oxidase gene are summarized in this paper. Related Articles | Metrics

Select

Relationship between ABA-inducible Gene and Stress LONG Hai-tao, LI Ling, Wan Xiao-rong 2004, 33(04): 74-77.  Abstract ( )   PDF (507KB) ( )   The class, structure and characterization of ABA-inducible gene are introduced in this paper and the relationship between expression of ABA-inducible gene and stress is also summarized. Related Articles | Metrics