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10 June 2003, Volume 32 Issue 02 Previous Issue    Next Issue

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Physiological characteristics and storage quality of mango fruit subjected to heated forced air treatment WANG Yu-lin, PENG Yong-hong 2003, 32(02): 1-4.  Abstract ( )   PDF (213KB) ( )   Treated with heated forced air at 35℃ and 38℃ for 24h and 28h, respectively, the effects of heated forced air on physiological characteristics and storage quality of mango fruits (Mangifera indica cv. Zihua)were studied. The results indicated that with the increase of temperature and duration of treatment, the MDA content in rind increased significantly and the increase of soluble solids content, the decrease of titratable acid content in fruit and yellow stain of rind were inhibited, resulting in retarding the ripening process of fruits. Under the heated forced air treatment at 38℃ for 24h and 48h, the percentage of fruits with disease spot area over 50% rose to 45.8% and 54.2% after 14 days of storage, respectively, which were significantly greater than those of the control (20.8%). The effects of heated forced air treatment at 35℃ for 24h on these indices were insignificant compared to those of the control. Related Articles | Metrics

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Stability of red pigment from Resine herbsii ZHAN Fu-jian, HUANG Zhuo-lie, WU Guang-hong, HE Ping, HUANG Yi-liang 2003, 32(02): 5-9.  Abstract ( )   PDF (284KB) ( )   The effects of temperature, illumination (visible light and ultraviolet), pH value, Vit C, oxidizing agent (H2O2), reducing agent (Na2SO3)and preservative (C7H5O2Na)on the stability of red pigment extracted from Resine herbsii were studied. The results showed that the red pigment was a good natural pigment with oxidation-reduction resistance, acid and alkali tolerance, sugar endurance, light resistance and temperature tolerance. Therefore, it has great potential of application in foods and beverages. Related Articles | Metrics

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Studies on male gametophyte development of Euphorbia pulcherima ZHANG Ning, LIN Qing-hong, ZENG Xin-ping, HUANG Wei-nan 2003, 32(02): 10-14.  Abstract ( )   PDF (822KB) ( )   The anther of Euphorbia pulcherima originates from the primordium of stamen and it consists of epidermis (one layer), endothecium (one layer), middle layer (one layer), tapetum (one layer)and aporgenous cells. The anther has four chambers and the development of anther wall is dicotyledonous type. The microsporogenesis and male gametophyte development were observed as follows:With the mitosis of microspore mother cells, tetrad is formed, of which the cytokinesis is simultaneous type and the arrangement is tetrahedral; microspores complete the mitosis and generated double-nuclei pollen. The epidermis of anther disappears at the anther mature stage, the middle layer disappears at tetrad stage and the endothelium become columnar fibrous layer at the anther mature stage. The tapetum cells stretch radially and become double-nuclei or more at uninuclear microspore stage and some tapetum cells form trabeculae or placentoides. At double-nuclei pollens stage, the particles coming from tapetum cells go into anther chambers and the tapetum is off-type glandular tapetum. The tapetum disappears at anther mature stage. The abnormal anther development was observed simultaneously. Related Articles | Metrics

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Cold tolerance of longan in relation to membrane fatty acid composition in leaves YU Ze-ning 2003, 32(02): 15-17,9.  Abstract ( )   PDF (255KB) ( )   The contents of membrane unsaturated fatty acids in longan leaves and the degree of unsaturation of the fatty acids were positively correlated with the cold-tolerance of the varieties. The contents of the unsaturated fatty acid in membrane lipid varied periodically with the change of season. The proportion of the membrane fatty acids in leaves indicated that there were genetic differences of cold tolerance among the varieties and it could be used as the index of cold-tolerance. Related Articles | Metrics

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Citrus yield trends in relation to temperature and rainfall in Changtai County, Fujian Province TANG Long-quan 2003, 32(02): 18-21,54.  Abstract ( )   PDF (284KB) ( )   According to statistics, the key meteorological influencing factor in the yield of Citrus reticulata var. ponkan were the temperature and rainfall of March, the rainfall from Jan. to Feb. and from Sep.1 to Nov.15. Based on the integral regression analysis, the curve of growth of citrus fruit were also given in this paper. Related Articles | Metrics

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The late bearing of Newhall navel orange on Citrus sinensis interstock and C. tangerina rootstock ZHOU Kai-bing, XIA Ren-xue 2003, 32(02): 22-25.  Abstract ( )   PDF (231KB) ( )   Through two-year field experiment, a comparison of growth and yield of Newhall navel orange on two combinations of interstock and rootstock was made. The results indicated that Newhall navel orange on Citrus sinensis interstock and C. tangerina rootstock (treatment)born fruits obviously later than that on C. unshiu interstock and Poncirus trifoliate rootstock (control). The late bearing of the treatment could be attributed to that the treatment had larger length increment and less diameter increment than the control; the crown density of the treatment was larger than that of the control and the photosynthesis of it was inhibited; the content of soluble sugar in leaf was lower and the content of starch in leaf was higher than those of the control; the combination of C. sinensis interstock and C. tangerina rootstock had lower content of N and P, higher content of Ca and higher C/N value in leaf. Related Articles | Metrics

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Effects of different preservative formulas on cut rose flower YOU Xue-ting, LI Wei-juan, LING Li-feng, ZHANG Yu-ping 2003, 32(02): 26-28.  Abstract ( )   PDF (179KB) ( )   The effects of different preservatives on quality and vase life of cut rose flowers were studied. The results showed that prescription 7(P7)[0.2% Ca(NO3)2+0 Suc+400mg/L B9+1mmol/L STS] gave the best result for preserving property of cut rose and could extend the vase life of cut rose significantly. The growth of flower was promoted when sprayed preservatives on petals. There was a rise in pH value of petal tissue during the cut flower senescence in vase-holding life. Related Articles | Metrics

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Effects of ABA pretreatment on POD isoenzyme in two turfgrasses under PEG stress WU Zhi-hua, ZENG Fu-hua, YU Guang-hui, LIN Li-jing, LU Xiang-yang 2003, 32(02): 29-32.  Abstract ( )   PDF (399KB) ( )   Treated with 20% PEG (Polyethylene glycol)6000 (control)simulating drought stress and with 20% PEG 6000 following ABA pretreatment for 24h, respectively, characters of the spectrum band of POD isoenzyme in two turfgrasses (Common centipede grass and Bermudagrass)in 0~4d were studied. The results showed that the activity of POD in the leaves of Common centipede grass increased with the increasing time of PEG treatment and it decreased when treated with ABA. The effect of ABA pretreatment on the activity of POD in the leaves of Bermudagrass was not apparent. In control group, the band (at Rf 0.56)of POD isoenzyme of Common centipede grass disappeared with the increasing time of PEG treatment and a new band (at Rf 0.324)appeared after 4d of PEG treatment. With ABA pretreatment for 24h, the spectrum band (at Rf 0.327)was induced and some similar bands at Rf 0.22 were also induced. Related Articles | Metrics

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Relationship between fertility of soil and growth of turfgrass in Yuandang Lake area of Xiamen TANG Hui-hua, CHEN Shang-hai, SUN Hong, YANG Tao 2003, 32(02): 33-37.  Abstract ( )   PDF (220KB) ( )   According to investigation of the growth of turfgrass and the analysis of soil fertility of different positions in Yuandang Lake area, the relationship between fertility of soil and growth of turfgrass was studied. Some suggestions for landscape design and maintenance are recommended. Related Articles | Metrics

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The effects of different peanut varieties and fertilizers in small furrow culture covered with film XIAN Hua-zhang 2003, 32(02): 38-40.  Abstract ( )   PDF (194KB) ( )   Using different peanut varieties and fertilizers, the orthogonal experiment of pearl peanut culture which covered with film in small furrow was carried out. The results showed that the new varieties of Zhanyou 55 and Zhanyou 41 could improve the yield significantly, fertilizer applications with 12g/m2 N and 70g/m2 CaO could increased the yield significantly than those with 6g/m2 N and 35 g/m2 CaO, respectively; the yield of peanut decreased remarkably when applied with 12g/m2 K2O. Aupplying P2O5 for 6g/m2 or 3g/m2 made no difference on the character of plant and yield of peanuts. Related Articles | Metrics

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Ferns flora in Fengyangshan-Baishanzu Nature Reserve in Zhejiang Province ZHU Sheng-chao 2003, 32(02): 41-44.  Abstract ( )   PDF (238KB) ( )   The pteridophytic flora of Fengyangshan-Baishanzu Nature Reserve of Zhejiang province are composed of 249 species (and varieties), 79 genera, 39 families. The representative families are Dryopteridaceae, Polypodiaceae, Thelypteridaceae, Athyriaceae and Hymenophyllaceae, and the main genera are Dryopteris, Arachniodes, Asplenium, Athyrium and Lepisorus. The top genera distribution types are tropical ones and the species distribution types belong to east Asia ones. There are 72 species being rare plants and endemic to China in Fengyangshan-Baishanzu Nature Reserve. Related Articles | Metrics

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Investigation of medicinal pteridophyte resources in Quanzhou, Fujian Province WU Wen-jie, CAI Jian-xiu, GE Qing-xiu 2003, 32(02): 45-51.  Abstract ( )   PDF (322KB) ( )   Based on the investigation of the wild pteridophyte resources in Quanzhou, there exits 58 species of medicinal ferns. The resources of ferns, character of flora, ecological distribution and utility value of medicinal pteridophyte were described. Some suggestions for proper development and further study were also put forward. Related Articles | Metrics

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Control of bacteria contamination in sub-culture of Anthurium andraeanum JIAN Xing, WANG Mi-li, SHI Da-xing 2003, 32(02): 52-54.  Abstract ( )   PDF (232KB) ( )   Anthurium andraeanum is a good ornamental herbaceous plant and easy to be contaminated by bacteria in tissue culture. A comparative experiment treated with antibiotics and HgCl2 to control the bacteria contamination was made. The results showed that 300mg/L penicillin+180mg/L streptomycin could effectively control the contamination of sub-culture for Anthurium andraeanum and it had less effect on the growth of plantlet than any other solutions. Related Articles | Metrics

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The anther culture and plant regeneration of Petunia hybrida Dai Se-ping, Bao Man-zhu 2003, 32(02): 55-57.  Abstract ( )   PDF (209KB) ( )   Binucleated anthers of Petunia hybrida were cultured to evaluate the effects of different proportions of hormone and different concentrations of sucrose and maltose on adventitious shoot induction and plant regeneration. The results showed that the medium combinated with 6-BA and IBA was good for callus induction and MS+6-BA 1.5mg/L+IBA 1.5mg/L gave the highest induction ratio. As a carbon source, maltose was more effective than sucrose on anther culture and plant regeneration of Petunia hybrida. Related Articles | Metrics

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Plantlet regeneration from transverse thin-cell-layer culture of Aloe CHEN Ting-su, ZHANG Jun, XIA Ning-shao, HUANG Zhuo-zhong, CHEN Ru-kai, LI Yang-rui 2003, 32(02): 58-58.  Abstract ( )   PDF (153KB) ( )   Related Articles | Metrics

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Tissue culture of Lilium davidii LUO Zhi-feng, ZHANG Shu-juan 2003, 32(02): 59-59.  Abstract ( )   PDF (151KB) ( )   Related Articles | Metrics

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A review of AFLP technology and its application in germplasm resources of tea trees HUANG Jian-an, HUANG Yi-huan, LIU Zhong-hua 2003, 32(02): 60-63.  Abstract ( )   PDF (196KB) ( )   AFLP (Amplified Fragment Length Polymorphism)is a rapid and convenient method with high resolution and excellent replication and has great potential of application in germplasm resources of tea trees. The principle, characteristics and advancement of AFLP technology are introduced and the application of AFLP in germplasm resources of tea trees in recent years are reviewed. Related Articles | Metrics

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Progress in breeding techniques of ornamental plants LIU Xiao-li, LIU Fei-hu 2003, 32(02): 64-68,76.  Abstract ( )   PDF (352KB) ( )   Advances of research in breeding techniques of ornamental plants around the world in recent years are reviewed. Cross breeding and selection are still the major methods to breed new ornamental cultivars. With the progress in biotechnology, some new breeding methods including genetic engineering have become the focus of the ornamental plant breeding, and gained many researchs on varietal improvement. Related Articles | Metrics

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A review of current progress in auxin signaling CHANG Li, SHI Da-xing, WANG Mi-li 2003, 32(02): 69-71.  Abstract ( )   PDF (166KB) ( )   The research in auxin signaling has made great progress in recent years. The advances in auxin signaling pathway, including auxin-responsive genes, auxin response factor and auxin response mutants are reviewed in this paper. Related Articles | Metrics

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A review of progress in response to fruit trees under water stress WU Qiang-sheng, XIA Ren-xue, Zhang Qiong-hua 2003, 32(02): 72-76.  Abstract ( )   PDF (260KB) ( )   The progress of recent research in response to fruit trees under water stress is reviewed. The morphological reactions and microstructure changes in leaves and roots of fruit trees under water stress are described. Some physiological and biochemical indexes of fruit trees, such as stomatal reactions, photosynthesis, variation of water potential, metabolism of carbohydrates, plant mineral nutrition, metabolism of lipoxygenase and polyamine, changes of endogenous phytohormones, and contents of proline and betain, are summarized in this paper. Related Articles | Metrics