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10 March 1999, Volume 28 Issue 01 Previous Issue    Next Issue

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Effects of three kinds of growth regulators on granulation in Guanxi honey pomelo fruits XIE Zhi-nan, XU Wen-bao, HUANG Yu-zong, WANG Ren-ji, ZHUANG Yi-meti 1999, 28(01): 1-4.  Abstract ( )   PDF (282KB) ( )   An orthogonal design experiment was used to investigate the effects of a combination of 6-BA, GA3, 2,4-D at different concentrations on juice sac granulation of Guanxi pomelo fruit. The order of effects of three kinds of growth regulators on granulation was 6-BA, GA3, 2,4-D, and 300mg/L, 6-BA, 100mg/L GA3,10mg/L 2,4-D gave the best results in reducing the index of fruit granulation. A 2-year application of the selective combination indicated that the combination had a significant role in reducing fruit granulation. Related Articles | Metrics

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Study on the qualitative changes of strawberry fruits during ripening CHEN Liaixuan, CHEN Li-hong, YOU Rui-chen, HUANG Wei-nan 1999, 28(01): 5-8.  Abstract ( )   PDF (263KB) ( )   The fruit quality of "Fengxiang" strawberry at different ripening stages were studied. Constant changes of the fruit were observed during fruit ripening, especially at the pink stage, with remarkable changes in fruit hardness, and solids/acids ratio. The optimum harvest was at the red ripe stage, when the solids/acids ratio and vitamin C reached to 6.77 and 44.71mg/100gfw, respectively, being maximum value at the ripening stage; and when the fruit hardness ranged from 0.4 to 7.0 kg/cm2, the anthocyanidin content from 150~230abs/100cm2, the strawberry fruits had colorful appearance, moderate hardness and excellent taste. Related Articles | Metrics

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Experiment of organic-mineral fertilizer ratio in Guanxi honey pomelo orchard XU Wen-bao, ZHUANG Yi-mei, XIE Zhi-nan, WANG Ren-ji, HUANG Yu-zong 1999, 28(01): 9-13.  Abstract ( )   PDF (365KB) ( )   Both organic and mineral fertilizer at different ratios were applied to Guanxi honey pomelo orchard during 1995~1998, and their effects on juice sac granulation and dehiscent segments of fruit, yield and soil nutrients were studied. The results showed that compared with the sole mineral fertilizer, applying the combined organic fertilizer and mineral fertilizer effectively reduced the granulation of fruit, greatly increased the content of organic matter in soil and favored to improve the quality of fruit. Furthermore, mineral fertilizer combined with 50% organic fertilizer also significantly increased the yield of fruit. It was found that through balanced fertilization, a high yield of Guanxi honey pomelo fruit was achieved every year, and higher level of soil fertility and plant nutrition was held, while the granulation of fruit tended to decrease year by year. It is suggested that the annual application of 1.5kg N(with the organic forms from 30% to 50%) added with 1.0~1.5kg lime is available to a plant with 100kg yield of fruit in a red orchard, and its element proportion is:1.00:0.50~0.60:1.00-1.05:100~130:0.28. Related Articles | Metrics

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Nutritive compositions in pollen of Raphanus sativus WU Wen-shan, FANG Yu-lin, JI Xiao-ping 1999, 28(01): 14-17.  Abstract ( )   PDF (294KB) ( )   The nutritive compositions in pollen of Raphanus sativus were determined by using amino acid auto analyzer and high performance liquid chromatography. The results showed that it contained protein 28.38%, total sugar 33.33%, amino acids 27.59% and rich contents of mineral elements and vitamins. As a natural resource of nutrient, it is valuable for exploitation and utilization. Related Articles | Metrics

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Effects of uniconazole on growth and fruiting of Shatianyou NIE Lei, SUN Gu-chou 1999, 28(01): 18-21.  Abstract ( )   PDF (279KB) ( )   Foliar spray of uniconazole was made to Citrus grandis cv. Shatianyou. The results showed that uniconazole significantly inhibited shoot growth, improved photosynthesis, reduced individual fruit weight and increased sugar content of fruits. The intensity of these effects was closely related to the concentration of application. The possible mechanism of uniconazole was also discussed. Related Articles | Metrics

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Studies on accelerating germination and growth habit of seedlings of Strelitzia reginae HU Hong-you, HUANG Wei-nan 1999, 28(01): 22-25.  Abstract ( )   PDF (274KB) ( )   Dipping the seeds of Strelitzia reginae into the solution of 95% H2SO4 (1/10 volume of the seeds) for 3~5 minutes gave the best result to accelerate germination, which softened the seed coat, removed the surface wax easily without causing the seed damage. The treatment with the solution of 1N NaOH take the second place, but the treatment with 95% alcohol was not so effective on the germination. When the seedlings were treated with a combination of Zineb with 700 times diluted solution and 0.02 mg/L NAA for one hour before being transplanted. They effectively resisted diseases and had a higher survival rate. A fertile medium with permeable acid soil is also necessary for the seedling growth. A shading of 60%~80% is an important condition for the seedlings to survive in the hot summer days. Related Articles | Metrics

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Observations on the characteristics of Angiopteris fokiensis LIN Shao-sheng, CHEN Yi-zheng, RAO jiong 1999, 28(01): 26-29.  Abstract ( )   PDF (245KB) ( )   Angiopteris fokiensis is one of the pteridophyte species with fine ornamental value. It is an adaptable species compared with Ficus elastica and Schefflera octophylla when being planted indoors. Pleasantly cool, moist environment, 3 000~8 000 lx is good for growth. Plenty of water is needed in growth period. Related Articles | Metrics

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A preliminary report on the introduction of Eucalyptus in Sanming, Fujian ZhANG Xiu-ying 1999, 28(01): 30-33.  Abstract ( )   PDF (277KB) ( )   The introduction and growth of Eucalyptus with 16 provenance of 4 species in Sanming are first reported. The 16 provenance can be divided into 3 types according to the result of cluster analysis based on 5 character factors. The results may provide the scientific basis for the introduction of Eucalyptus to the area of mid-subtropics zone in Fujian. Related Articles | Metrics

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Aseptic seedling and individual plant regeneration of Cymbidium scinense LU Xue-hua, GUO Wen-jie, LIN Yong 1999, 28(01): 34-37.  Abstract ( )   PDF (273KB) ( )   The aseptic seedling results of Cymbidium scinense were observed that when they were cultured on the media supplemented without any cytokinin, seeds can sprout but only protocorm and rhizome came into being, and they cannot differentiate further into seedlings. Only on the MS or Knudson C media containing different hormones can they induce shoot initiation. The medium added with 0.5~1.0mg/L 6-BA and 0.1mg/L NAA gave the best results. The MS medium added with 2.0mg/L BA and 0.4mg/L NAA can accelerate greatly shoot differentiation rate, when rhizome was transferred onto the liquid proliferation medium added with the same hormones and cultured at the stage of vibration. The medium added with 0.5% activated carbon had obvious synergy effect for shoot differentiation. MS medium added with 0.2mg/L NAA gave the best result in seedling rooting. Related Articles | Metrics

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In Vitro culture and rapid propagation of Gladiola corm-buds TIAN Lang, ZHANG Xue-qin, ZHANG Lin 1999, 28(01): 38-41.  Abstract ( )   PDF (248KB) ( )   The dormant buds from gladiola corms were induced to sprout on MS medium supplemented with 1.0mg/L BA. The germ-free buds transferred onto the medium containing 3.0mg/L BA could differentiate and produce rosette buds. During the subculture, the BA concentration should be reduced to 1.5mg/L. The suitable rooting-media were MS+NAA 0.1~0.5mg/L and MS+IBA 1.5mg/L. Related Articles | Metrics

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Determination of allantoin and allantoic acid in plant materials by HPLC YOU Rui-chen, LIU Hong-zhou, HUANG Wei-nan 1999, 28(01): 42-46.  Abstract ( )   PDF (255KB) ( )   A simple, accurate and fast method to determine allantoin and allantoic acid by HPLC is described. The method can be applied to the studies of metabolism path of purine bases, the role of ureide metabolism and the mechanism of nitrogen fixation in plants. Related Articles | Metrics

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Improved determination of amino acids by pre-column derivation with 1-fluoro-2,4-dinitrobenze LIU Hong-zhou, YOU Rui-chen 1999, 28(01): 47-50.  Abstract ( )   PDF (258KB) ( )   A method for separation and quantification of primary and secondary amino acids by pre-column derivation with 1-fluoro-2,4-dinitrobenze and reversed-phase HPLC is described. 15 amino acids can be separated thoroughly with a linear gradient elution with acetate buffer and acetonitrile solution. The products of derivation can be kept at room temperature for over two months with little change in their contents. The lowest content that can be determined was below 5 pmol. The method may be applied to the determination of amino acid composition of foods and drugs, and so on. Related Articles | Metrics

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Space types formed by plants in green surface of garden and their application KE He-zuo 1999, 28(01): 51-55.  Abstract ( )   PDF (373KB) ( )   The characteristics, such as size, form, color, quality and seasonal change of plant are the correlated factors forming space of plant. Plant may form into five basal space types. They have different functions and actions and have been applied extensively. Related Articles | Metrics

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Germ plasm resources and its exploitation of Castanea henryi in northern Fujian FAN Hui-hua, ZHANG Cui-ying, ZHANG Ren-hao 1999, 28(01): 56-60.  Abstract ( )   PDF (364KB) ( )   Through the germ plasm resources survey and collection of Castanea henryi in Jian'ou city, the inheritance and variation character of 19 varieties of Castanea henryi were analyzed. It can provide breeding resources for the genetic improvement and breeding new varieties as well as reproduce materials for the exploitation and utilization of germ plasm resources of Castanea henryi and the selection of good varieties. Related Articles | Metrics

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Palmaceae:suitable for indoor greening SUN Feng-li, ZHOU Jin-yan 1999, 28(01): 61-64.  Abstract ( )   PDF (290KB) ( )   14 genera in the family Palmaceae, which are endemic or exotic and available for extension, and suitable for indoor greening are described briefly in this paper. Related Articles | Metrics

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Progress in plant genome analysis WANG Wei 1999, 28(01): 67-71.  Abstract ( )   PDF (410KB) ( )   Analysis of the genomes of the model plant species Arabidopsis thaliana and rice are progressing rapidly. Physical mapping and sequencing of the genomes of the model plant species facilitates the isolation of genes by map-based cloning and increases the understanding of organization, structure and evolution of many plant genomes. Related Articles | Metrics

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Correlation between plant isoenzyme and resistance JING Tao, XIONG Hui-yu 1999, 28(01): 72-75.  Abstract ( )   PDF (318KB) ( )   By reviewing the correlation between plant isoenzyme and disease resistance, the study method of plant isoenzyme is summarized and the biochemical mechanism of resistance is investigated. It is suggested that the relative content of isoenzyme might be regarded as one of the biochemical indices for identifying the resistance of crop varieties. Related Articles | Metrics

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The role of ethylene in the development of plant morphogensis LI Feng-yu, LIANG Hai-man 1999, 28(01): 76-80.  Abstract ( )   PDF (412KB) ( )   Ethylene plays an important regulatory role in many aspects in the growth and development of plants such as root formation, floral induction, organ senescence and abscission, and so on. Studies indicated that ethylene is a positive regulator of root hair development in the Arabidopsis root epidermis, and the early reaction of the process of post-pollination perianth wilting of orchids increases the sensitivity to endogenous levels of ethylene. Related Articles | Metrics