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10 March 2002, Volume 31 Issue 01 Previous Issue    Next Issue

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Effects of H2O2 and CaCl2 on chilling-resistance capabilities in banana seedlings KANG Guo-zhang, XU Yu-ying, TAO Jun, SUN Gu-chou, WANG Zheng-xun 2002, 31(01): 1-4.  Abstract ( )   PDF (166KB) ( )   In chilling stress condition, activities of peroxidase, content of soluble sugars and chlorophylls in leaves of banana seedlings (Musa acuminate AAA group) were raised, and loss of materials in cell through the cytoplasmic membranes were reduced by spraying alone or with a combination of H2O2 and CaCl2. The results showed that the combined application of H2O2 and CaCl2 had better effect than the application of H2O2 or CaCl2 alone. H2O2 and CaCl2 had a significant synergism on these aspects. Related Articles | Metrics

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Effect of water content of soil in winter on Nuomici litchi flower bud differentiation YIN Jin-hua, LUO Shi, LAI Yong-chao, LUO Hua-jian 2002, 31(01): 5-8.  Abstract ( )   PDF (199KB) ( )   In winter, moderate soil moisture is favorable to the differentiation of flower bud of Nuomici litchi. In sandy loam soil, the optimum water content is 12% to 15%. Related Articles | Metrics

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Studies on the seedless loquat fruit ZHANG Ze-huang, ZHENG Shao-quan, LIU You-jie, XU Xiu-dan, XU Jia-hui, JIANG Ji-mou, CHEN Xiu-ping 2002, 31(01): 9-13.  Abstract ( )   PDF (240KB) ( )   The experiments to produce seedless loquat fruits, including using frozen injury fruit, growth regulator induction and polyploid variety were conducted.The results showed that growth regulator induction and polyploid variety were the optimum ways for seedless loquat fruit production. Related Articles | Metrics

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Isolation and domestication of strain ‘Xia-3’ from Tricholoma giganteum GUO Cui-ying, SHEN Yu-fen 2002, 31(01): 14-16.  Abstract ( )   PDF (133KB) ( )   Strains ‘Xia-3’ were isolated from mycorrhizae of wild Tricholoma giganteum and domesticated in the test tubes. The results showed that the hyphae growth increased (from 32d per tube to 15d per tube) by transplanting after 4 times at favorable temperature. The order of growth rate of hyphae cultured in different substrates was cotton seed hulls >Zoysia matrella >sawdust. The yield of T. giganteum increased by 94.5% when cultured in Z. matrella than that in sawdust. After transplanted in basket with hay substrate, the biological efficiency of strain ‘Xia-3’ reached 123.9%. Related Articles | Metrics

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Study of cherry tomato in different cultivated pattern ZENG Zhi-jie, YANG Qiang, FANG Jun-hua, GAO Hui-lan 2002, 31(01): 17-20,24.  Abstract ( )   PDF (195KB) ( )   Seven cherry tomato varieties were cultured under different cultivated patterns. The growth, single fruit weight, contents of TSS, early yield and total yield of single plant, pesticide residue and nitrate content in fruit, nitrate content in drained water and their economic effects of different varieties in different cultivated patterns were evaluated. The results showed that media cultivation is best for cherry tomato and Shengnu, 3688F1 and Han 3 are suitable to popularize in south Fujian. Related Articles | Metrics

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Effects of different proportion of hormones on scaly bud induction in Lilium longifolrum ZHANG Wen-zhong 2002, 31(01): 21-24.  Abstract ( )   PDF (159KB) ( )   The segment of bulb of lilium longifolrum were used as explants for tissue culture to evaluate the effects of different proportion of hormones on scaly bud induction. The results showed that the medium adding MS+6-BA 1.0mg/L+NAA 0.5mg/L gave the best result for induction, MS+6-BA 2.0mg/L+NAA 0.1mg/L for multiplication and the medium adding active carbon accelerated in rooting. Related Articles | Metrics

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In vitro screening for mutants resistance to Stagonospora curtisii in Narcissus tazetta var. chinensis CHEN Shuang-ya, ZHANG Yong-xiang, CAI Xiang-qun 2002, 31(01): 25-27.  Abstract ( )   PDF (130KB) ( )   The bulbs from Narcissus tazetta var. chinensis were in vitro cultured. The fungal filtrate prepared from cultures of Stagonospora curtisii pathogenic bacteria was used as screening agent. 1 420 N. tazetta calli were treated with γ-ray mutation and 9 bulbils resistant to S.curtisii were produced. The result showed that the disease resistance of regenerated bulbils cultured on the selected medium is greater than that of the control. Related Articles | Metrics

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Preliminary studies on microclimate of mango orchard in Nanning,Guangxi HUANG Cheng-biao, LI Hai-quan, MO Liu-yan, HUANG Bing-jing 2002, 31(01): 28-31.  Abstract ( )   PDF (162KB) ( )   A comparison of meteorological factors was made between mango (Mangifera indica) orchard and open area in winter half year (from September to the next February) in Nanning, Guangxi Province. The results showed that the daily mean intensity of illumination in mango orchard was 7 390 lx, 53.4% lower than that in open area (13 830 lx). Daily mean air temperature (21.3℃) and daily range were lower by 0.2℃ and 0.1℃, respectively, as compared to that in open area. Daily mean temperature of solum (0~20cm) and daily range in soil temperature were 20.4~21.1℃ and 0.5~6.8℃, respectively, 1.8~2.8℃ and 0.8~6.0℃ lower than those in open area, respectively. Daily mean relative humidity of mango orchard was 77%, 3% higher than that in open area, and daily mean wind speed was 0.26m/s, 79.2% lower than that in open area. Related Articles | Metrics

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Effect of osmotic stress on active oxygen damage of leaves in mango YU Wang 2002, 31(01): 32-34,40.  Abstract ( )   PDF (167KB) ( )   Leaves of mango (Mangifera indica) were treated with different osmotic stress. The results showed that the water potential of leaves decreased with the increasing of osmotic stress, the generation rate of superoxides and the content of MDA increased with the increasing of osmotic stress. The generation rate of O2· and the content of MDA was up to the peak when the osmotic stress reached-1.25Mpa and the activities of SOD, POD and CAT corresponded to the change of O2· and the content of MDA. The contents of GSH and AsA decreased rapidly with the increasing of osmotic stress. The finding revealed that the cell damage of leaves under osmotic stress was caused by membrane lipid peroxidation first, resulting in the increasing of MDA content and the cytoplasmic system destruction. Related Articles | Metrics

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The medical study of wild ferns in Gaoligongshan region,Yunnan Province SHEN Li-xin 2002, 31(01): 35-40.  Abstract ( )   PDF (214KB) ( )   Through the farmer's interview and investigation of rural market in Gaoligongshan region, 85 species of medical fern plants have to be identified, which belong to 24 families and 44 genera. The medical function of 17 major medical species of ferns is introduced and a systematic list with 85 species of medical ferns is also given. Related Articles | Metrics

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Preliminary investigation of insecticidal plant resource in Fujian Province LI Guo-ping, YANG Lu-sheng 2002, 31(01): 41-46.  Abstract ( )   PDF (215KB) ( )   Insecticidal plant resource is abundant in Fujian Province. There are 107 species under 53 families, in which 8 species of Compositae; 7 species of Leguminosae and Euphorbiaceae, respectively; 4 species of Celastraceae, Polygonaceae, Labiatae and Solanaceae, respectively. Among them, over 10 species, such as Melia azedaroch, Celastrus anguletus, Derris trifoliata, Sophora flavescens, Rhododendron molle, Strophanthus divaricatus, etc. are of great development value. Suggestions for further study and rational development of these resources are also proposed. Related Articles | Metrics

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Plant resources and its protection and utilization in Yong'an,Fujian CHEN Rui-yan 2002, 31(01): 47-51.  Abstract ( )   PDF (183KB) ( )   Situated in the center of Fujian Province, Yong'an is abundant in plant resources. The current situation and characteristics of plant resources are described and its protection and utilization are also discussed. Related Articles | Metrics

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A review of research in Calonyctin CHEN De-hai, MIAO Ying, YANG Sheng-chang, ZENG Zhi-jie 2002, 31(01): 52-56.  Abstract ( )   PDF (214KB) ( )   Calonyctin is a plant growth regulator isolated from leaves and stems of Calonyction aculeatum. It is determined to be an alycosida consists of one ethyl 11-hydroxy-hexadecanoate or ethyl 11-hydroxy-tetradecanoate, one 2-hydroxy-3-methyl-butyric acid and four rhamnoses. It has distinct effects on physiological activities in more than ten kinds of crops, especially for the growth and differentiation of plant callus. Related Articles | Metrics

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Gene expression and signal transduction under water stress YU Guang-hui, LI Ling, ZENG Fu-hua 2002, 31(01): 57-62.  Abstract ( )   PDF (1016KB) ( )   The adaptation of plants to water stress is regulated by the ABA-dependent gene expression pathway and the ABA-independent gene expression pathway. The stress signals are sensed by the osmosensors at the cydtomembrane and transducted to the nucleus to cause the gene expressions by the MAPK signal-transduction pathway and the CDPK signal-transduction pathway. Related Articles | Metrics

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A review of study in protein kinase CAI Chong, LU Jun-liang, CHEN Kun-song 2002, 31(01): 63-67.  Abstract ( )   PDF (194KB) ( )   The recent advances in the studies of protein kinase, including classification, structure, cell orientation, are reviewed in this paper. Several plant protein kinases in relation to signal transduction are also discussed. Related Articles | Metrics

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A review of advances in study of postharvest physiology and preservation technique of loquat ZENG Ya-juan, XIAO Hua-shan 2002, 31(01): 68-72.  Abstract ( )   PDF (183KB) ( )   The studies of postharvest physiology and preservation technique of loquat are reviewed and some suggestions on postharvest treatment of loquat are also proposed. Related Articles | Metrics