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27 February 2021, Volume 50 Issue 01 Previous Issue    Next Issue
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Plant physiology and biochemistry
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Plant physiology and biochemistry

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Effects of Fertilization on Growth, Root Nodulation and Mineral Nutrition of Ormosia hosiei Seedlings SU Shi-cheng, WEI Xiao-li, JIN Nian-qing, ZHOU Zi-jing, SHAO Chang-chang, TIAN Yu-feng 2021, 50(01): 1-8.  DOI: 10.3969/j.issn.1009-7791.2021.01.001 Abstract ( )   PDF (415KB) ( )   The purpose of this study was to explore the effects of several commercially available fertilizers on the growth, development and nutrient content of Ormosia hosiei seedlings, so as to provide a reference for the selection of fertilizers for the cultivation of high-quality O. hosiei seedlings. The annual O. hosiei seedlings were used as experimental materials, and three kinds of common fertilizers (compound fertilizer, slow-release fertilizer and urea) were applied in the fertilization experiments at three levels. The seedling height, ground diameter, root index, nodulation index, biomass of various organs and N, P, K content were measured. And the seedling quality of different fertilization treatments was comprehensively evaluated. Different fertilization treatments had significant or extremely significant effects on the growth, nodulation and mineral nutrition of annual O. hosiei seedlings. The treatment of slow release fertilizer and compound fertilizer showed that the growth and physiological indexes of seedlings increased at first and then decreased with the increase of fertilizer application, while the treatment of urea application showed a gradually decreasing trend with the increase of fertilization. According to the comprehensive evaluation of seedling quality by membership function, slow-release fertilizer treatment (30 g·m-2) was the best fertilization treatment, and its seedling height increment, root quality index, biomass index, nodulation number and N, P, K content of root, stem and leaf were the highest. The application of 30 g·m-2 slow-release fertilizer (N-P-K: 30-6-7) could effectively improve the seedling quality of O. hosiei when the annual seedling density was fifty seedlings per square meter. References | Related Articles | Metrics

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Effects of Dehydration Rates and Freezing Rates on Cryopreservation of Grapefruit Seeds YANG Pei-ru, WEN Bin, ZHAO Zhu-fang 2021, 50(01): 9-14.  DOI: 10.3969/j.issn.1009-7791.2021.01.002 Abstract ( )   PDF (325KB) ( )   Fresh grapefruit seeds were firstly desiccated at 3 different dehydration rates to about 20% moisture content (MC), and equilibrated to 10 different MC by saturated salt solutions, then cryopreserved using a simplified two-step protocol; Meanwhile, another fresh grapefruit seeds was firstly dehydrated to about 12% MC under 15 ℃ and 50% relative humidity (RH) conditions, and then cool down at 5 cooling rates and 3 pre-cooling temperatures using a programmable cooler before frozen in liquid nitrogen. It was found that grapefruit seeds were sensitive to dehydration, and the emergence percentage fell with the decrease of MC. The damage to seeds increase with the acceleration of dehydration rate under slow dehydration. The germination percentage was expressed as 75% RH > 50% RH > 15% RH; Freezing treatment brought further damage to seeds, but there were no significant difference among germination percentage of frozen seeds dried at the three dehydration rates, and the best post thaw germination found in seeds at 6%—8% MC. Compared with the pre-cooling control, freezing in liquid nitrogen significantly reduced seed emergence. The seeds pre-cooled at rates of -0.5 ℃·min-1 and -0.25 ℃·min-1 had the best cryopreservation results, while the pre-cooling rate of -2.5 ℃·min-1 was optimal for the pre-cooling control seed. The decrease in pre-cooling temperature from -40 ℃ to -60 ℃ reduced the emergence of non-cryopreservation seeds, but increased the emergence of cryopreserved seeds. References | Related Articles | Metrics

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Component Analysis and Comparison of Antibacterial Activity of Essential Oil from Fresh and Dry Leaves and Stems of Thymus pulegioides CHEN Pin-pin, MA Xiao-juan, LIU Liang, WU Hui-huang, LIN Jin-xiu, LAN Bo-miao, ZHUANG Wei-dong 2021, 50(01): 15-20.  DOI: 10.3969/j.issn.1009-7791.2021.01.003 Abstract ( )   PDF (313KB) ( )   The essential oil from fresh and dry leaves and stems of Thymus pulegioides was extracted, and their components were detected and identified, and their antibacterial effects were analyzed, so as to provide the basis for the development and application of thyme in this region. Contents of essential oil from fresh and dry thyme were analyzed and compared, by steam distillation extraction and GC-MS. And antibacterial effects of the two essential oils from fresh and dry samples on Alternaria alternate, Trichothecium roseum and Penicillium italicum were compared. The essential oil contents in fresh and dry samples were 0.53% and 0.37%, and total of 35 and 40 compositions were identified, respectively. They had similar main compositions: Thymol(fresh 31.30%, dry 26.82%), 3-methoxy-p-cymene, Borneol and o-Cymene and so on, and these compositions were slightly different in contents. In addition，the inhibitory effect of thyme essential oil on Alternaria alternate was the most significant, the second was Penicillium italicum and Trichothecium roseum. The compositions of essential oils from fresh and dry samples were similar, and the relative contents were slightly different. The essential oil of thyme had a good inhibitory effect on 3 species of fungi, and the antibacterial effect of essential oil of fresh samples was better than that of dry ones. References | Related Articles | Metrics

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Analysis of Volatile Components in Canarium pimela Fruits (Niaoshilan) from Guangdong Province Using HS-SPME-GC-MS Lü Zhen-cheng, LAI Jun-fang,LI Huan-huan, XU Liang-xiong, PENG Yong-hong 2021, 50(01): 21-25.  DOI: 10.3969/j.issn.1009-7791.2021.01.004 Abstract ( )   PDF (339KB) ( )   In order to analyze the volatile components of Canarium pimela fruits (Niaoshilan), the samples were analyzed by HS-SPME-GC-MS, and the relative content of each compound was determined by area normalization method. Forty-eight volatile components were identified, accounting for 93.30% of the total volatile components, including α-pinene (30.17%), p-cymene (11.84%), α-phellandrene (8.72%) and β-caryophyllene (8.02%), etc. Based on the analysis of the aroma compounds of the volatile components, it was found that the fruit covered a total of 22 aroma types which were mainly composed of conifer, citrus and wood scents. References | Related Articles | Metrics

Plant resources and taxonomy

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Comprehensive Evaluation of the Ornamental Adaptability of 10 Species of Introduced Ornamental Grass in Guiyang ZHANG Yan-sha, OU Jing, LUO Qian, ZHANG Zhi-ye 2021, 50(01): 26-32.  DOI: 10.3969/j.issn.1009-7791.2021.01.005 Abstract ( )   PDF (312KB) ( )   Based on the analytic hierarchy process, this paper screened out 11 related evaluation indicators related to the adaptability, growth and reproduction of ornamental grass, and comprehensively evaluated the ornamental properties of 10 ornamental grass introduced in Guiyang. The results showed that among the 11 evaluation indicators, the plant type, leaf color, and drought tolerance of ornamental grass accounted for a larger weight (>0.1), which were important indicators that affect the comprehensive evaluation of their ornamental properties. After the establishment of the scoring standard, the ornamental rank was calculated as: Pennisetum setaceum ‘Fire Works’, Cortaderia selloana ‘Silver Comet’, Pennisetum setaceum ‘Rubrum’, Cortaderia selloana ‘Pumila’, Phormium Sundowner, Carex oshimensis ‘Evergold’, Muhlenbergia capillaris, Festuca glauca, Cordyline australis ‘Red sensation’, Carex riparia ‘Bowles Golden’; Growth adaptability ranking: Cortaderia selloana ‘Pumila’, Cortaderia selloana ‘Silver Comet’, Pennisetum setaceum ‘Fire Works’, Pennisetum setaceum ‘Rubrum’, Phormium ‘Sundowner’, Carex riparia ‘Bowles Golden’, Muhlenbergia capillaris, Carex oshimensis ‘Evergold’, Cordyline australis ‘Red sensation’, Festuca glauca. It was finally concluded that the comprehensive score had excellent ornamental value with grade I (>4.30 points) including Cortaderia selloana ‘Silver Comet’, Pennisetum setaceum ‘Fire Works’; better ornamental value with grade II (3.56–4.30 points) including Cortaderia selloana ‘Pumila’, Pennisetum setaceum ‘Rubrum’, Phormium ‘Sundowner’, Muhlenbergia capillaris, Carex oshimensis ‘Evergold’; the general ornamental value with Ⅲ grade (<3.56 points) including Festuca glauca, Cordyline australis ‘Red sensation’, Carex riparia ‘Bowles Golden’. References | Related Articles | Metrics

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Adaptability of Six Cultivars of Cerasus in Beijing HU Na, SUN Yu-hong, ZHANG Guo-xin, CHEN Si 2021, 50(01): 33-38.  DOI: 10.3969/j.issn.1009-7791.2021.01.006 Abstract ( )   PDF (341KB) ( )   In order to enrich the cultivars of Cerasus in Beijing, 6 cultivars were selected for experimental planting, including Cerasus×kanzakura ‘Tairyo-zakura’, Cerasus×kanzakura ‘Rubescens’, C. spachiana ‘Yoshun’, C. serrulata ‘Erecta’, C. serrulata ‘Ranran’ and C. serrulata ‘Kouka’. On the basis of field observation, the content of dehydrogenase in roots, the content of free proline in branches under low temperature stress, and the electric conductivity, the soluble protein content of leaves under high temperature stress were measured. With the decrease of temperature, the activity of dehydrogenase in roots and the content of free proline in branches of 6 Cerasus cultivars first increased and then decreased. The activity of dehydrogenase and the content of free proline of ‘Tairyo-zakura’, ‘Rubescens’, ‘Ranran’ reached the maximum at -10 ℃, ‘Yoshun’, ‘Erecta’, ‘Kouka’ reached the maximum at -15 ℃. With the increase of temperature, the electric conductivity of leaves of 6 cultivars increased. The soluble protein content of leaves varied greatly among cultivars. After a comperhensive comparison of the adaptability of 6 Cerasus cultivars, ‘Yoshun’, ‘Erecta’ and ‘Kouka’ had higher adaptability in Beijing. ‘Tairyo-zakura’, ‘Rubescens’ and ‘Ranran’ could be planted in small areas with better environment. The results can provide the reference for planting of these trees in Beijing. References | Related Articles | Metrics

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Comprehensive Evaluation of Rooting Effect on Cuttings of Different Miniature Rose Varieties ZHAO Bing-xue, ZHOU Lin, HUANG Qing-jun, YANG Liu-yan, YAO Jian-jun, ZHANG Yong-chun 2021, 50(01): 39-45.  DOI: 10.3969/j.issn.1009-7791.2021.01.007 Abstract ( )   PDF (373KB) ( )   Miniature roses are widely favored due to their short plant types and diverse flower colors, the demand for seedlings is increasing year by year. In order to select good miniature rose varieties that are easy to root, this experiment used principal component analysis, membership function and cluster analysis to synthesize 7 root morphological indicators of 7 miniature rose varieties evaluation. The results showed that there were significant differences among rooting abilities of the miniature rose varieties. Seven root morphology indexes of the miniature rose varieties were replaced by 3 independent comprehensive indexes, namely the first principal component, the second principal component and the third principal component. The rooting effects of 7 miniature rose varieties were ‘Lady’, ‘Red Lover’, ‘Jue Lian’, ‘Nu Hong’, ‘Venus’, ‘Spring Color’, and ‘Inspiration’. The ‘Lady’ miniature rose could use general cutting methods in seedling production to ensure a higher survival rate of cuttings. References | Related Articles | Metrics

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Rapid Propagation in vitro of Asparagus cochinchinensis LI Lin, LI Yang, ZHANG Ming-sheng, PENG Si-jing, WU Shang-jiao, JIA Na, LIU Zhi, YU Xiao-song, YANG Chao-xiong 2021, 50(01): 46-50.  DOI: 10.3969/j.issn.1009-7791.2021.01.008 Abstract ( )   PDF (310KB) ( )   Into establish the rapid propagation technique in vitro of Asparagus cochinchinensis, the hypocotyls in seedsaseptic sprouting were used as explants, the effects of different plant growth regulators on callus induction, shoots differentiation and plants regeneration were studied. The results showed that the suimedium for callus induction was MS + 6-BA 1.0 mg·L-1 + NAA 0.5 mg·L-1, and the induction rate was 95.6; The proliferation medium of callus was MS + 6-BA 0.5 mg·L-1 + NAA 2.0 mg·L-1, and the proliferation multiple was 9.7; The induction medium of clustered buds was MS + 6-BA 0.5 mg·L-1 + NAA 0.1 mg·L-1 + KT 0.1 mg·L-1, the induction rate was 91.1; The suimedium for strong seedlings was MS + 6-BA 0.2 mg·L-1 + IAA 1.0 mg·L-1; The suirooting medium was 1/2 MS + NAA 2.0 mg·L-1, the rooting rate reached 84.4. This study laid a foundation for the technical system construction of seedlings production in the industrialization of A. cochinchinensis. References | Related Articles | Metrics

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Community Characteristics of Woody Plants at Nanshan Nature Reserve of Shixing, Guangdong Province XIAO Jia-liang, WU Lin-fang, LI Rong-sheng, HUANG Xiao-sa, QIN Qiao-mei 2021, 50(01): 51-56.  DOI: 10.3969/j.issn.1009-7791.2021.01.009 Abstract ( )   PDF (285KB) ( )   In order to study the structural characteristics of woody plant community in Nanshan Nature Reserve of Shixing, Guangdong, three one-hectare sample plots at different elevations were set, and their species composition, diversity, diameter class structure and biomass were analyzed. The results showed that: (1) there were 193 species of woody plants belonging to 60 families and 115 genera in the investigated area, among which 127 species belonging to 44 families and 80 genera were the most in middle altitude sample plot. There were different dominant tree species, and the dominant families were Fagaceae and Lauraceae. (2) Shannon-Wiener diversity index (H) and Simpson diversity index (D) of woody plants were different between sample plots, and both showed a decreasing trend with the increase of altitude. (3) The diameter class structure of woody plant community in high and low altitude area was mainly small diameter class (grade I), while the diameter class structure of woody plant community in middle altitude sample plot was mainly in grade I, supplemented by individual trees in grade II and III, and the diameter class structure was more reasonable. (4) The biomass of roots, trunks, branches and leaves in different areas had significant differentces, and presented an increasing trend with the increase of altitude. The results provide scientific basis for rational forest management, biodiversity conservation and productivity prediction in Nanshan Nature Reserve of Shixing. References | Related Articles | Metrics

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New Records of Angiosperm Distribution in Fujian (Ⅹ) AN Chang, ZHU Yi-yao, SHANGGUAN Zhen-hua, SHANGGUAN Rong-qing, YANG Cheng-zi 2021, 50(01): 57-60.  DOI: 10.3969/j.issn.1009-7791.2021.01.010 Abstract ( )   PDF (394KB) ( )   In the field investigation work of the fourth national survey on Chinese medicine resources in Fujian province, 4 new records of plants in Fujian province were discovered, i.e. Biondia microcentra (Tsiang) P. T. Li, Alpinia sichuanensis Z. Y. Zhu, Grangea maderaspatana (L.) Poir., Drosera oblanceolata Y. Z. Ruan. All the vouchers specimens were preserved in Herbarium of Chinese Medicine Resources of Fujian University of Traditional Chinese Medicine (FJTCM) and Herbarium of College of Life Sciences, Fujian Normal University (FNU). References | Related Articles | Metrics

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New Distribution Record of Angiosperm in Fujian (Ⅺ) LI Xin, SUN Mei-lian, LIU Xiao-fen, YE Xu-qin, WU Ai-qin, AN Chang, YANG Cheng-zi 2021, 50(01): 61-64.  DOI: 10.3969/j.issn.1009-7791.2021.01.011 Abstract ( )   PDF (378KB) ( )   During the fourth survey of Chinese medicine resources in Dongshan, Shouning and Pucheng County, five new records of plants in Fujian province were discovered, i.e. Gomphrena celosioides Mart., Galactia tashiroi Maxim., Vigna trilobata (L.) Verdc., Lysimachia rufipilosa Y. Y. Fang et C. Z. Zheng and Crepidium acuminata (D. Don) Szlachetko. The vouchers specimens were preserved in Herbarium of Fujian University of Traditional Chinese Medicine (FJTCM). References | Related Articles | Metrics

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Five New Records of Vascular Plants from Fujian MAO Zhi-wei, WANG Tao, SHI Zhi-yuan, HOU Xue-liang 2021, 50(01): 65-68.  DOI: 10.3969/j.issn.1009-7791.2021.01.012 Abstract ( )   PDF (378KB) ( )   Five species of vascular plants were reported as new records from Fujian, including Stellaria omeiensis C. Y. Wu & Y. W. Tsui ex P. Ke, Fordia microphylla Dunn ex Z. Wei, Salix glandulosa Seemen var. glandulifolia C. Wang & C. Y. Yu, Pteris finotii Christ, Cyrtomium caryotideum (Wall. ex HK. et Grev.) Presl. The voucher specimens were held in Herbarium of Xiamen University (AU). References | Related Articles | Metrics

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New Recorded Genus and Species of Angiosperms in Fujian Province ZHU Yi-yao, LIN Yu-lin, MA Liang, YANG Cheng-zi 2021, 50(01): 69-71.  DOI: 10.3969/j.issn.1009-7791.2021.01.013 Abstract ( )   PDF (909KB) ( )   One genus and two species of angiosperms, Peliosanthes Andr., Peliosanthes macrostegia Hance and Stylidium uliginosum Swartz, were reported as new records to Fujian province in the study. All the vouchers specimens were preserved in Herbarium of Forestry College, Fujian Agriculture and Forestry University. References | Related Articles | Metrics

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A New Distribution Record of the Endangered Species Cystopteris chinensis (Cystopteridaceae) in Mountain LI Xiao-jie, LI Ce-hong, WEI Ran, ZHANG Xian-chun 2021, 50(01): 72-74.  DOI: 10.3969/j.issn.1009-7791.2021.01.014 Abstract ( )   PDF (514KB) ( )   Cystopteris chinensis (Ching) X. C. Zhang & R. Wei was reported as newly recorded endangered species to the Mt. Emei of Sichuan Province, China. The voucher specimen was stored in the National Herbarium of Institute of Botany, Chinese Academy of Sciences (PE). The research progress concerning this species was discussed. References | Related Articles | Metrics

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Entosthodon, a Moss Genus New to Zhejiang Province, China LIAO Yu-jun, JIN Min-zhong, HOU Jian-hua, ZHAO Chang-gao, LIN Jian, XU Yuan-ke, REN Zhao-jie 2021, 50(01): 75-77.  DOI: 10.3969/j.issn.1009-7791.2021.01.015 Abstract ( )   PDF (241KB) ( )   Entosthodon Schwgär. and Entosthodon buseanus Dozy & Molk. were reported new to Zhejiang province, east China. Detailed description and ink drawing of E. buseanus were given, while brief discussions were provided. References | Related Articles | Metrics

Reviews

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Research Progress on Tigridiopalma, a Genus Endemic to China TAO Wen-qin, LUO Yu-qian, CHEN Tao, ZHENG Yan, HUANG Hua-zhang, MIAO Shen-yu 2021, 50(01): 78-82.  DOI: 10.3969/j.issn.1009-7791.2021.01.016 Abstract ( )   PDF (299KB) ( )   Based on the analysis of references and the field survey on some of the wild survive sites of Tigridiopalma C. Chen, the taxonomic status and application value, places of origin and habitats, and the endangering cause and protective suggestions of the genus endemic to China, were summarized in this paper, so as to providing some suggestions for its survivals and protection. There had been 90 years and 42 years since the specimen of T. magnifica C. Chen was first collected in Xinyi, Guangdong in 1931 and named as Tigridiopalma in 1979, respectively. Its areal range were enlarged from Xinyi, and Yangchun, western Guangdong to Gaozhou city, Guangdong, and even more northwest to Jinxiu county, Guangxi, Liping county and Yinjiang county, Guizhou etc. A species newly named T. exalata S. J. Zeng, Y. C. Xu & D. F. Cui found in eastern Guangdong, had a relative lager population than that of western Guangdong of T. magnifica. The causes for the endangerment of this genus include natural and human factors, the disturbance and destruction was main reason. More scientific research should strengthen and in situ and ex situ conservation and reintroduction to protect the wild population. References | Related Articles | Metrics