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10 March 2003, Volume 32 Issue 01 Previous Issue    Next Issue

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Effects of 1-MCP on shelf life of banana fruits SU Xiao-jun, JIANG Yue-ming, LI Yue-biao 2003, 32(01): 1-3.  Abstract ( )   PDF (124KB) ( )   Changes in skin colour, fruit softening and starch breakdown of banana fruits were markedly inhibited by subsequent exposure to 1-methylcyclopropene (1-MCP)applied at 0 or 1 day after Ethrel treatment and the shelf life of banana fruits could extend at least 5 days. The inhibition was ineffective when 1-MCP was applied at 2 or 3 days after Ethrel treatment. Treated with 1-MCP, the fruits regained the sensitivity to ethylene after 11-day storage at ambient temperature. Related Articles | Metrics

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Comparative studies of catalase activities and isozymes in three clones of Eucalyptus HUANG Zhuo-lie, ZHAN Fu-jian, WU Guang-hong, ZHANG Dong-fang, ZHAO Gan, TAN Shao-man 2003, 32(01): 4-7.  Abstract ( )   PDF (158KB) ( )   Clones LH21,LH22 hybrid Eucalyptus (Eucalyptus urophylla×Eucalyptus camaldulensis)and clone U6 Eucalyptus urophlla were studied to compare the differences of catalase activities and the isoenzymes.The results indicated that catalase activity varied among the same organ of different clones,and significantly among the different organs of the same clone.LH21 and LH22 had the same catalase isoenzyme system in the leaves.But the catalase systems in the roots of LH21 and LH22 were different from those of the leaves and the stems.The catalase systems in U6 were also different from those of LH21 and LH22. Related Articles | Metrics

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Biological effect of ultraviolet radiation on Porphyridium cruentum JIANG Xian-zhang, CHEN Xiao-lan, WANG Ming-zi, CHEN Bi-lian, SHI Qiao-qin 2003, 32(01): 8-10,13.  Abstract ( )   PDF (173KB) ( )   Treated with ultraviolet (UV)radiation for 10s, 20s, 30s, 60s, 90s, 120s and 180s, respectively, the biological effects of UV rays on Porphyridium cruentum were studied. The results showed that the growth of P. cruentum was promoted when irradiated for 10s, the metabolism and growth of P. cruentum were inhibited under UV radiation for more than 30s and the more the radiation time was treated, the more inhibited effects were found. The mortality of P. cruentum was 100% when treated with UV radiation for more than 120s. The results also showed that high dose of radiation (20-90s)improved the metabolic products of single cell. The second generation of irradiated cell was similar to that of initial cell (CK), including the rate of growth, the contents of chlorophyll a, extra cellular polysaccharides and β-carotene. Related Articles | Metrics

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Study on mutation breeding of banana buds in vitro Ⅳ： Bio-chemical analysis to ‘Zhangjiao No.8’ strain GUO Jian-hui, CAI En-xing, LIN Qing-tong, CHEN Li-ping, HUANG Xi-dong, SHEN Ming-shan 2003, 32(01): 11-13.  Abstract ( )   PDF (206KB) ( )   Treated with irradiation of 60Coγ ray, a new strain ‘Zhangjiao No.8’ was developed from ‘Musa AAA Group Cavendish’. The biochemical indexes corresponding to anti-injury and POD isoenzyme of ‘Zhangjiao No.8’ were analyzed. The results showed that ‘Zhangjiao No.8’ strain had recovered from the irradiation injury and the excellent traits could be inherited stably. Related Articles | Metrics

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Influence of light and temperature on the seed germination of Luculia pinciana ZHANG Guang-fei, SU Wen-hua, YAN Hai-zhong 2003, 32(01): 14-16,19.  Abstract ( )   PDF (156KB) ( )   The effects of light and temperature on the seed germination of Luculia pinciana were studied. The results showed that the seed of L. pinciana is a light requirement seed and it has photodormancy. The optimal temperature for germination was 20~25℃ in light. The seeds began to germinate within 8~10 days and the germination was complete after 2~3 weeks. The percentage of germination was up to 97%. The photodormancy of seed could be relieved at 15~30℃ when treated with 250mg/L GA3 for 24h. Related Articles | Metrics

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Effects of bagging on fruit quality of Psidium guajava LI Ping, WEN Hua-liang, ZHENG Run-quan, WU Yong-jun, LUO Song 2003, 32(01): 17-19.  Abstract ( )   PDF (98KB) ( )   The effects of bagging on fruit quality of ‘Xinshiji’ guava(Psidium guajava)were studied. The results showed that bagging could accelerated growth of fruits and increased fruit size and weight markedly. Transparent bag and red bag had no effects on TSS (total soluble solids)and bagging with black bag decreased the TSS in fruit. Treated with bagging, the plant diseases and insect pests decreased, the fruit coat became smooth and fruit color were improved. Related Articles | Metrics

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Preliminary studies on chemical constituents in seeds of Celosia argentea LIN Wen-qun, CHEN Zhong, LIU Jian-qiu 2003, 32(01): 20-22.  Abstract ( )   PDF (125KB) ( )   The chemical constituents in seeds of Celosia argentea were studied. The results showed that the seeds of Celosia argentea were abundant in amino acid and the contents of essential amino acid reached 42.85% of the total amino acids. The seeds were rich in fatty oil and the main constituents were palmitic acid (18.225%), stearic acid (2.459%), oleic acid (27.995%), linonic acid (44.522%)and linolenic acid (2.374%). The content present in unsaturated fatly acids was up to 79.276%. Various kinds of mineral elements were present in the seeds of C. argentea. It is suggested that the seeds of C. argentea are of high nutritional values and have potential in its exploitation and utilization. Related Articles | Metrics

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Rapid propagation in vitro by division of Phalaenopsis DAI Rong-chun, ZHU Jin-mao, CHEN You-qiang, LIN Rong-hua 2003, 32(01): 23-25.  Abstract ( )   PDF (97KB) ( )   The test tube seedlings of Phalaenopsis were cultured on division propagation media supplemented with 1/2MS+6-BA 3.0mg/L+NAA 0.2mg/L+CM 20g/L. After 30 days, the thick plantlets produced. The plantlets grew into plants with 3~4 leaves and several strong roots in growth media supplemented with 1/2MS+6-BA 1.0mg/L+NAA 0.1mg/L in 30 days. The transplant survival percent was more than 80%. Related Articles | Metrics

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Effects of four growth regulators on tissue culture of Rabdosia lophanthoides HUANG Qun-sheng, GUAN Rui-ai, CHEN Yu-mei, PENG Qiu-yue, CHEN Guo-zhu, LI Ling, LI Niang-hui, HUANG Qun-hui 2003, 32(01): 26-29.  Abstract ( )   PDF (131KB) ( )   Taking leaves and stems as explants, the effects of 2,4-D, NAA, 6-BA and CPPU on rapid propagation of Rabdosia lophanthoides were studied. The results showed that the adventitious buds could be produced from leaf and stem cuttings on MS+CPPU 0.2~0.3mg/L and their inducing rates were 22.5% and 66.0%, respectively. The activity of CPPU was greater than that of 6-BA at the same concentration. For rootless seedling, CPPU 0.2mg/L+NAA 0.1mg/L was best for bud multiplication and 1/2 MS+NAA 0.2mg/L gave the best result for rooting. Related Articles | Metrics

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New discovery on pistil traits in Dianthus caryophyllus HE Cong-cong 2003, 32(01): 30-32.  Abstract ( )   PDF (201KB) ( )   According to Flora Reipublicae Popularis Sinicae and different local floras, there is slight discrepancy in the account of the number of carpel in Dianthus caryophyllus. No definite conclusion has been reached yet. Through morphologic observation on this character, discovery is made that the numberof carpel varies with specific cultivars. Two basic floral shapes differ from each other in variability of carpel number. The possible formation mechanism is also discussed in this paper. Related Articles | Metrics

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Leaf morphology in white seedlings of Cycas revoluta HUANG Zhi-ming 2003, 32(01): 33-35.  Abstract ( )   PDF (146KB) ( )   leaf morphology in white seedlings and normal seedlings of Cycas revoluta was comparatively observed under light microscopy (LM). The results showed that there were some remarkable and stable differences between white and normal seedlings in leaf. Related Articles | Metrics

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Analysis of the contents of protein and amino acid in the powder of Chlorella pyrenoidosa and its nutritive value YANG Lu-sheng, LI Guo-ping, CHEN Lin-shui 2003, 32(01): 36-38.  Abstract ( )   PDF (129KB) ( )   Main nutrient constituents in the powder of Chlorella pyrenoidosa were analyzed to evaluate the nutritive value of Chlorella powder. The results showed that the contents of protein, total hydrolyzed amino acids (TAA)and essential amino acids (EAA)were 63.60%, 55.95% and 23.35%, respectively. Amino acid score was 64.3. The first limiting amino acid was Met+Cys. The powder of C. pyrenoidosa is considered to be one of the valuable resources of single cell protein (scp). Related Articles | Metrics

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Rare and endangered plant resources and its protection in Qingyunshan Scenic Spot, Fujian Province LIN Dao-qing, LIANG Hong, TAN Qing-zhong, WU Qing-rong, TAN Zhuang-liang, WANG Xin-jiang, LI Wei-ying 2003, 32(01): 39-42,46.  Abstract ( )   PDF (178KB) ( )   According to the investigation, there exists 62 species of rare and endangered plant in Qingyunshan Scenic Spot, Fujian Province. The characteristics of plant species and distribution are described and some suggestions for its protection and utilization are also discussed. Related Articles | Metrics

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A study on cutting techniques of Bougainvillea spectabilis LIN Xiao-hong 2003, 32(01): 43-46.  Abstract ( )   PDF (127KB) ( )   Using the overwintering branches and current growth shoot as test materials, the effects of growth regulators at various concentrations and different diameters of cutting on the rooting of Bougainvillea spectabilis cuttings were investigated in different seasons. The results showed that dipping the cuttings in NAA 100mg/L for 3h gave the best result for rooting and the rooting rate was up to 91.7%. The strong overwintering branches were good cutting materials and early summer was optimum season for raising seedlings. Related Articles | Metrics

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Application of high water absorbent resins in garden plant production WU Shang-ling, SONG Zhi-yu 2003, 32(01): 47-49.  Abstract ( )   PDF (129KB) ( )   Using high water absorbent resins as moisture substrates, the cultivation experiment of garden plants was conducted. The results showed that high water absorbent resins saved water consumption by 50% in the irrigation of Salvia splendens var. nana and Tagetes erecta; the survival percent of Carmona microphylla and Codiaeum variegatum increased by 19.7% and 7.7%, respectively. Related Articles | Metrics

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Discussion on indoor application of green plants LIN Bing, HUANG Min-ling 2003, 32(01): 50-53.  Abstract ( )   PDF (123KB) ( )   According to the indoor circumstance, shade tolerance and ornament of plants, the indoor application of green plants was discussed. Some species, applications and placement deadline of plants were selected for indoor placement. The key points for indoor plant management were also put forward. Related Articles | Metrics

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Investigation of scale insects on ornamental plants in Lishui City, Zhejang CHEN Zhi-sheng, LI Sheng-yang 2003, 32(01): 54-56.  Abstract ( )   PDF (121KB) ( )   According to the investigation of scale insect on ornamental plants in Lishui City, Zhejiang Province,53 species of ornamental plant have been damaged by 44 species and 29genera under 6 families of scale insects. Their Chinese names, Latin names, hosts and damage strength are also listed. Related Articles | Metrics

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Biological characteristics and gardening application of Mexican Fan Palm and its seed propagation ZANG Xiao-ping 2003, 32(01): 57-59.  Abstract ( )   PDF (158KB) ( )   The botanical feature, biological characteristics of Mexican Fan Palm and its application in landscaping are introduced. According to the characteristics of seed germination, some techniques of seed propagation are described. Related Articles | Metrics

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A review of progress in turfgrass breeding MA Sheng-jian, ZENG Fu-hua, LIU Jiu-hua, LU Xiang-yang 2003, 32(01): 60-64.  Abstract ( )   PDF (156KB) ( )   The historical and present situations of turfgrass traditional and transgenic breeding are introduced, meanwhile, the operation procedure of transgenic breeding is summarized in this paper. In addition, there are some detailed discussions on transgenic safety resulted from gene losing, gene silencing and gene flowing in transgenic breeding in plants, especially in turfgrass. Related Articles | Metrics

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A review of advances in genetic transformation of rose WANG Fu-lin, HU Zhang-hua 2003, 32(01): 65-67,72.  Abstract ( )   PDF (153KB) ( )   The advances in research of tissue culture and genetic transformation in rose are reviewed in this paper. Related Articles | Metrics

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A review of pharmaceutical and health care value of microalgae and their current status of research and development JIANG Hong-xia, ZHENG Yi 2003, 32(01): 68-72.  Abstract ( )   PDF (152KB) ( )   The pharmacological active substances in microalgae and their efficacy are introduced. The pharmaceutical and health care value in microalgea production which have been put into market and the current status of research and development in health care and functional food are reviewed. Related Articles | Metrics