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10 June 2015, Volume 44 Issue 02 Previous Issue    Next Issue

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Responses of Bougainvillea to Salt Stress WANG Zhen,DING Yin-long,DONG Yi-ran,YANG Sheng-chang 2015, 44(02): 91-95.  DOI: 10.3969/j.issn.1009-7791.2015.02.001 Abstract ( )   PDF (225KB) ( )   The long-term NaCl salt stress experiments showed that with the increasing of NaCl concentration, shoot and root biomass of different Bougainvillea cultivars were decreased. At 5% NaCl concentration, biomass of ‘Miss Manila’ had the least decline of 27.94%; however, ‘Imperial Delight’ had the largest decline of 67.03%, compared with the control. When the NaCl concentration was 4%, the quantum yield of ‘Imperial Delight’, ‘Shubhra’ and ‘Miss Manila’ were 0.36, 0.30 and 0.36, with 78.23%, 79.64% and 74.82% of the control, respectively; the quantum yield of ‘Thimma’ was 0.05, only 15.53% of the control. With the increasing of NaCl concentration, photochemical quenching coefficient qP of ‘Shubhra’ had no obvious change; but qP value of ‘Thimma’, ‘Miss Manila’ and ‘Imperial Delight’ decreased significantly. The resistance ability to NaCl salt stress of four Bougainvillea cultivars was ‘Shubhra’ > ‘Imperial Delight’> ‘Miss Manila’ > ‘Thimma’. References | Related Articles | Metrics

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Effect of Aluminum Toxicity Stress on Growth and Physiology of Michelia chapensis Seedlings GONG Hai-guang,JIANG Chun-ning,HUANG Yong-fang,LI Yan 2015, 44(02): 96-100.  DOI: 10.3969/j.issn.1009-7791.2015.02.002 Abstract ( )   PDF (291KB) ( )   To study the effect of aluminum stress on the growth of Michelia chapensis seedlings, the seedlings were cultivated with water culture with different Al3+ concentration of 0.5 (T1), 1 (T2), 2 (T3) and 0 mmol·L-1 (CK), and the root length, content of aluminum in the roots’ tip, the activity of POD and CAT, the content of MDA and proline were measured. The results showed that the elongation of M. chapensis root was inhibited significantly cultured with Al3+ for 24 hours, with the increasing of the concentration of aluminum, the degree of inhibition was rising. The relative elongation of roots was 84.53%, 63.16% and 54.46%, respectively. The content of aluminum in the root tip of M. chapensis was increased with the increasing of treatment time and aluminum density; after 6 days, the concentration of Al were 63.64, 82.6, 121.69 times of control, respectively. Stressed by the aluminum, the activity of POD and CAT increased with the increasing of time and aluminum density. The activity of POD and CAT in 6th day respectively increased 17.00%—115.21% and 25.11%—49.28% compared with 1st day. The MDA and proline were increased with the increasing of time and aluminum density. In 6th day, MDA in roots cultured in T1, T2, T3 increased 46.13%—59.78%, and proline increased 60.12%—150.85% compared with control. With aluminum stress, the content of aluminum in root tips of M. chapensis increased and elongation of its roots was inhibited; M. chapensis activated antioxydase system to defense the aluminum stress, and generated proline to regulate osmotic pressure. References | Related Articles | Metrics

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Seed Viability and Germination Test on Camellia crapnelliana LI Wei, LIANG Qin, ZHANG Chao, SU Dan-ping, HE Tao, CUI Da-fang 2015, 44(02): 101-106.  DOI: 10.3969/j.issn.1009-7791.2015.02.003 Abstract ( )   PDF (580KB) ( )   The wild resource of Camellia crapnelliana had been badly damaged and it was listed as critically endangered species, growing only in a narrow geographical range. To explore its endangered causes, seed propagation mode was carried out. Used plump and shiny C. crapnelliana seeds as material, seed storage viability, seed germination and seed anatomical characteristics observation were determined. The results showed that the highest seed viability for seeds of C. crapnelliana was stored in refrigerator layer (4 ℃), and the worst was stored in freezer frozen layer (－10 ℃). In seed germination test, seed germination rate was not high (≤40%), and the influence of different factors was different, the optimum treatment to improve seed germination rate was 6-hour immersion in 800 mg·L-1 GA3. The testa of C. crappnelliana was hard, consisting of suberized wall and sclereid, which may be the mechanical barrier for embryo germination. References | Related Articles | Metrics

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Comparison of Growth and Dry Matter Content of Plantlets in vitro of Anoectochilus roxburghii under Different Cultivating Periods WEI Cui-hua,XIE Yu,QIN Jian-bin,CHEN Qin 2015, 44(02): 107-109.  DOI: 10.3969/j.issn.1009-7791.2015.02.004 Abstract ( )   PDF (189KB) ( )   Comparison of fresh weight(FW), dry weight(DW) and DW/FW of plantlets in vitro of Anoectochilus roxburghii under different cultivating periods were carried out. The results showed that growth and dry matter content were on the rise with the increase of cultivation-days. The increased trend of fresh weight was showing as slow-fast-slow, and the fresh weight increased rapidly during the period of 90—150 cultivation-days. The dry weight showed a rising trend during the period of 0—150 cultivation-days. The DW/FW increased significantly during the period of 30—120 cultivation-days. According to the increased?rules of growth and?dry matter content, it was recommended that the best harvest period of plantlets in vitro of A. roxburghii was during 120—150 cultivation-days. References | Related Articles | Metrics

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Variation Analysis and Family Selection on Half-sib Progenies of Pinus massoniana PAN Qing-you,CAI Yan-ling,LUO Min,QIN Ji,LIU Wan-zhuan,ZENG Ling-hai,LIANG Hui-ming,ZHANG Qian 2015, 44(02): 110-115.  DOI: 10.3969/j.issn.1009-7791.2015.02.005 Abstract ( )   PDF (338KB) ( )   To understand variation of growth traits of height(HT), diameter at breast height(DBH), volume of individual tree (VOL) and crown width(CW), 26 half-sib progenies from improved seed orchard of masson pines were planted at Xinyi. Investigation was conducted at 0.5, 1.5, and 2.5 years-old pines to study inheritance and early selection efficiency for HT, DBH, VOL and CW. The results showed that every trait studied had significant differences among families. Heritability of HT, DBH, VOL and CW was higher than 0.8, individual heritability of HT, DBH and VOL were higher than 0.4. 19 superior families were selected out under the selection ratio of 73% with the genetic gain of HT, DBH and VOL of 2.76%, 3.60% and 8.49% respectively, and VOL of 19 superior families was 55.28% higher than the primary seed orchard cultivar and 218.28% higher than common varieties. References | Related Articles | Metrics

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The Orchid Species and Floristic Characteristics in Shenzhen, China PAN Yun-yun,ZHANG Shou-zhou,WANG Xiao-ming,LIU Hai-jun,LIAO Wen-bo 2015, 44(02): 116-122.  DOI: 10.3969/j.issn.1009-7791.2015.02.006 Abstract ( )   PDF (453KB) ( )   Based on field survey, specimens and literatures, Orchid resources and floristic characteristics in Shenzhen were studied. The results were showed as follows: (1) There were 75 orchid species, belonging to 43 genera, in which terrestrial orchids were dominant with 49 species in 28 genera, and 23 species in 13 genera for epiphytic and 2 species in 2 genera for saprophytic. Orchiaceous species were mainly distributed in Mt. Wutongshan and Mt. Qiniangshan. (2) Nine species were the new records to Shenzhen, in which 2 species of Cheirostylis clibborndyeri and Zeuxine flava were the new records to Guangdong province. 2 genera of Vrydagzynea and Geodorum were the new records to Shenzhen. (3) The geographical element of wild Orchidaceous flora in Shenzhen was predominated by tropical one, accounting for 87.5% of non-world genera, the temperate elements were occupied only 12.5% of non-world genera. (4) Comparing with neighboring regions, Orcidaceous flora of Shenzhen was similar to Hong Kong, between which there were shared 41 genera including 70 species, taking up 95.3% of total genera and 93.3% of total species in Shenzhen. References | Related Articles | Metrics

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Microscopic Identification of Wild Dendrobium officinale of Guanzhaishan in Fujian Province HUANG Ze-hao,WEN Ting-mei,GUO Jia-xin,LIANG Yi-chi 2015, 44(02): 123-126.  DOI: 10.3969/j.issn.1009-7791.2015.02.007 Abstract ( )   PDF (463KB) ( )   Field surveys of Dendrobium officinale in Guanzhaishan from Fujian were conducted. To identify D. officinale accurately, the tissue structure and microscopic characteristics of its stem and leaf were described. The cap-shape fiber group outside the vascular bundle, the Calcium oxalate crystal bundles in the near epidermis, the mucous cells contain needle crystals and the silica grains on the outside the fiber bundle sheath all provided an important identification basis for this crud drug. References | Related Articles | Metrics

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Chromosome Number and Karyotype of Allamanda neriifolia GUO Rong,SHEN Yan-hong 2015, 44(02): 127-129.  DOI: 10.3969/j.issn.1009-7791.2015.02.008 Abstract ( )   PDF (229KB) ( )   The chromosome number and karyotype of Allamanda neriifolia were studied using immature embryos as experimental materials. The results showed that the embryo cells normally contain 9 pairs of chromosomes, and all chromosomes were metacentric or submetacentric chromosomes. The karyotype formula was 2n=2x=6sm+12m. The karyotype was 2A type, and the asymmetry index was 58.95%. References | Related Articles | Metrics

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The Effects of Two Kinds of Inter-Planting on Soil Nutrition of Camellia oleifera Forest ZHA Qian-hui,YANG Ya-hui,HUANG Yong-fang 2015, 44(02): 130-134.  DOI: 10.3969/j.issn.1009-7791.2015.02.009 Abstract ( )   PDF (268KB) ( )   To investigate the effects of inter-planting legume on soil nutrition of Camellia oleifera forest, soybean and peanut were cropped in C. oleifera forest. Variations of organic matter, nitrogen, phosphorus, potassium, available nitrogen, available potassium and available phosphorus of soil were detected. The results showed that both soybean and peanut improved the soil of C. oleifera forest. Compared with the control group, the organic matter and phosphorus did not improve effectively but the nitrogen, phosphorus, potassium, available nitrogen, available potassium of soybean and peanut respectively increased significantly. These two crops could be utilized to inter-planting in C. oleifera forest. The soil nutrition contents of soybean group were higher than those of the peanut group. The soybean was more suitable than peanut for inter-planting in C. oleifera forest. References | Related Articles | Metrics

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Study on Physical and Chemical Properties of Different Stands in Qingyun Forest Park of Wengyuan County HUANG Hua-rong,DONG Qi-yu,YANG Ya-hui,HU Rou-xuan,CHEN Hong-yue 2015, 44(02): 135-139.  DOI: 10.3969/j.issn.1009-7791.2015.02.010 Abstract ( )   PDF (283KB) ( )   To provide references for natural resource protection and management, six types of stands in Qingyun forest park were used as soil samples and their physical and chemical properties were comprehensively evaluated by principal component analysis(PCA). Based on the PCA comprehensive evaluation results, the superior order of 6 forest stands were ranked as follows: Phyllostachys heterocycla forest of Baishuizhai > coniferous mixed forest of Tianranju > broad-leaved forest of Shuigang > Chinese fir plantation of Xialujiao > eucalyptus plantation of Lanni’ao > masson pine plantation of Xiapai. References | Related Articles | Metrics

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Light Substrate Nursery Technique for Tissue-cultured Seedlings of Cinnamomum camphora CHEN Yi-qun,QIU Zuo-wang,WANG Ying-li,QU Chao,HE Bo-xiang,ZENG Ling-hai,LIAN Hui-ming,ZHANG Qian 2015, 44(02): 140-145.  DOI: 10.3969/j.issn.1009-7791.2015.02.011 Abstract ( )   PDF (328KB) ( )   In order to promote the seedling nursery efficiency for the native broadleaf tree Cinnamomum camphora, 6 combinations of light substrates were designed for analyzing the effects of substrate composition, container size, air-cutting and slow-release fertilization on a genetically-selected clone of seedlings. The substrate compositions had significant influences on height (HT), basal diameter (BD), HT-to-BD ratio, SPAD value and survival rate. A single addition of vermiculite, perlite or sawdust into peat soil obviously improved the seedlings’ performance, and the synchronous supplement of both sawdust and perlite achieved the optimal results. While the complement of peat soil with coconut dust resulted in similar growth situation with 100% yellow soil, which was apparently inferior to other light substrates. Larger containers led to an increase in the growth traits, SPAD value and survival rate when compared with smaller ones, but had little impact on HT-to-BD ratio. Air-cutting induced an increment of basal diameter, an inhibition of main root extension, faster growth of lateral roots and fibrous roots, and occurrence of more developed root system. Slow-release fertilization up-regulated the height, HT-to-BD ratio and SPAD value, but exerted little influences on survival rate. References | Related Articles | Metrics

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Effects of Different Fertilization Treatments on Quality of Mango Fruit and Soil Fertility ZANG Xiao-ping,LIN Xing-e,ZHOU Zhao-xi,TAN Lin,GE Yu,DAI Min-jie,MA Wei-hong 2015, 44(02): 146-149.  DOI: 10.3969/j.issn.1009-7791.2015.02.012 Abstract ( )   PDF (278KB) ( )   To elucidate the effects of different fertilization formula on quality of mango fruit and soil fertility, taking the cultivar ‘Guifei’ as materials, 3 fertilization treatments with different application rate of chemical fertilizer combining with organic manure were carried out. The results showed that compared with chemical fertilizer (CK), T1 and T2 increased total soluble solid by 12.0% to 22.1%, increased vitamin C by 8.5% to 28.5%, increased TSS-acid ratio by 94.4% to 107.5%, and reduced total titration acid by 41.2% to 42.4%. Meanwhile, two treatments increased the contents of soil organic matter, total nitrogen, available phosphorus, available potassium, exchangeable calcium, exchangeable magnesium, electrical conductivity, and increased the value of pH, soil fertility was improved significantly. The study suggested that T2 treatment(organic manure 5.0 kg + urea 385 g + calcium superphosphate 350 g + high potassium compound fertilizer 700 g per plant) was a rational management for fruit quality and soil fertility. References | Related Articles | Metrics

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Effects of Different Cutting Medium and Cutting Time on Rooting of Cutting of Taxodium Hybrid ‘Zhongshanshan 118’ HAN Lu-wan,HUA Jian-feng,LIU Jiang,WU Xiao-hong,YIN Yun-long 2015, 44(02): 150-153.  DOI: 10.3969/j.issn.1009-7791.2015.02.013 Abstract ( )   PDF (217KB) ( )   In order to explore efficient and practical cutting propagation techniques in Taxodium hybrid, the impacts of cutting media and cutting time on rooting of cuttings of Taxodium hybrid ‘Zhongshanshan 118’ by measuring the parameters of rooting rate, longest root, root diameter and root lignification were studied. The annual branches of ‘Zhongshanshan 118’ were cultivated in four different cutting media (1/2 humus, 2/3 humus, full humus and full sand which obtained from local sources in Chongqing Wanzhou District). Cutting times of June and September were carried out separately. The results showed that the rooting rate of the cuttings in the cutting medium of 1/2 humus was the highest, which meant that the 1/2 humus was the most suitable growth substrate for ‘Zhongshanshan118’. Moreover, the rooting rate and degree of lignification of ‘Zhongshanshan 118’ in June were higher than those in September, which indicated that June was more suitable for cutting propagation of ‘Zhongshanshan 118’. References | Related Articles | Metrics

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Study on the Growth Traits of Twig and Fruit in Double Cropping Mulberry and Their Potential Correlation LIN Jian-zhong,LAI Rui-yun,ZHANG Xue-qin,ZHONG Zan-hua,XIE Zhi-nan 2015, 44(02): 154-157.  DOI: 10.3969/j.issn.1009-7791.2015.02.014 Abstract ( )   PDF (194KB) ( )   This study focused on the double cropping mulberry cultivated in greenhouse. The growth traits of twig and fruit as well as their potential correlation were investigated. The results showed that the fruit branches length (42.20 cm) and its percentage of total twig (98.40%) in the first cropping mulberry were significantly higher than those in the second cropping mulberry (36.90 cm in length and the percentage at 43.30%). As for the fruit traits of first cropping mulberry, the fruit count (5.00 per branch) and the weight (5.60 g) were both higher than the second cropping mulberry with 3.60 fruits per branch and 2.20 g for each fruit. Further analyses indicated that the coarseness of fruit branches was positively correlated with fruit count, fruit weight and length. In addition, the fruit weight also had significantly positive correlation with the length of fruit and its stalk. References | Related Articles | Metrics

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Ornamental Species of Acanthaceae and Their Landscape Application LI Jian-you 2015, 44(02): 158-162.  DOI: 10.3969/j.issn.1009-7791.2015.02.015 Abstract ( )   PDF (571KB) ( )   The ornamental species of Acanthaceae were enjoyed by people for their rich diversity, colorful flowers, vigorous growth and landscape performance. Based on previous reports and on-site investigation, this article described morphological features, ecological habits and main application patterns of ornamental plants of Acanthaceae, mainly emphasized the performance in flower border, pot culture, hedgerow, tree pool, slope greening and vertical greening. Twenty excellent species were recommended for future utilization. References | Related Articles | Metrics

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The Main Deciduous Plants in Xiamen Urban Green Space and Their Landscape Application FU Qiu-hong 2015, 44(02): 163-167.  DOI: 10.3969/j.issn.1009-7791.2015.02.016 Abstract ( )   PDF (480KB) ( )   Based on the survey and analysis of the main species of deciduous plants configuration and landscape features on the main road, park, roadside green space, residential quarters and other green space in Xiamen, the basic characteristics of deciduous plants in Xiamen urban green space were summarized, and suggestions on improving application were proposed to provide references for landscape application of deciduous plants in urban green space. References | Related Articles | Metrics

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Research Advances on the Biological Characteristics of Lycoris and Its Cultivation Techniques ZHANG Peng-chong,BAO Chun-song,JIANG Yan 2015, 44(02): 168-174.  DOI: 10.3969/j.issn.1009-7791.2015.02.017 Abstract ( )   PDF (328KB) ( )   Lycoris is bulbar and perennial flower which has medicinal and ornamental values and is endemic to Eastern Asia. The paper summarized present researches on the cultivation techniques such as soil, light, temperature, water and breeding. In addition, some current problems were discussed on the basis of practical experience to support the application of the genus Lycoris in the future. References | Related Articles | Metrics

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Research Progress on Development and Application of Aquatic Plants in Fishery Ecological Aquaculture XIE Qin-ming,KONG Jiang-hong 2015, 44(02): 175-180.  DOI: 10.3969/j.issn.1009-7791.2015.02.018 Abstract ( )   PDF (283KB) ( )   This paper described the ecological function characteristics and ecological remediation principle of aquatic plants, summarized the application progress and developments of aquatic plants in fishery ecological aquaculture areas such as resources of aquatic green feeder, environmental friendly medical resource for ecological control of aquatic animal diseases, allelochemicals control for harmful algae, biological purification agents of aquaculture pollutant water, and aquatic plant application in ecological restoration for fisheries water environment. Problems of aquatic plant application in fishery ecological environmental remediation and ecological aquaculture were also discussed, and some relevant countermeasures were proposed. References | Related Articles | Metrics