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10 September 2001, Volume 30 Issue 03 Previous Issue    Next Issue

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RAPD analysis of genetic variation in different cauliflower cultivars HUANG Cong-li, LI Chuan-yong, PAN Ai-min, XU Wei-dong, XU Rui-de 2001, 30(03): 1-6.  Abstract ( )   PDF (931KB) ( )   Genetic DNA diversity among thirteen cauliflower cultivars were analyzed using Random Amplified Polymorphic DNA (RAPD). There were 175 clear and reproducible bands amplified with twenty primers and 118 of these bands were polymarphic(67.4%). The genetic similarity coefficients between different cauliflower cultivars based on RAPD markers were analyzed and the dendrogram of different cultivars based on UPGMA analysis was also generated. The results showed that the genetic diversity among different cultivars was abundant. The genetic relationship among cultivars, application of RAPD technique in differentiation and breeding of cauliflower were preliminary discussed. Related Articles | Metrics

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Protective effect of ASA on membrane damage in protoplast of peanut during enzymatic isolation of leaf protoplasts FU Ming-hui, ZHUANG Dong-hong 2001, 30(03): 7-10.  Abstract ( )   PDF (166KB) ( )   Malondialdehyde(MDA) accumulated in protoplast of mesophyll cell of Arachis hypagaea during the cell wall digestion in enzyme solution. Added with ascorbic acid (ASA), the content of MDA decreased. At the initial stage of enzyme digestion, the activities of peroxidase (POD) and catalase (CAT) increased without adding ASA and after a long time of enzyme digestion, the activity of POD decreased. While ASA added into enzyme solution, the activity of superoxide disumutase (SOD) increased significantly. These results showed that membrane were damaged during the protoplasts isolation; cells had a protection mechanism to respond to it and adding ASA could reduce the membrane damage during protoplasts isolation. Related Articles | Metrics

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Shelf-quality and physiological indices of litchi subjected to cool storage CHEN Hong-guo, WANG Yu-lin, PENG Yong-hong 2001, 30(03): 11-15.  Abstract ( )   PDF (175KB) ( )   Effects of 2h, 5d, and 30d of storage at 5℃ on the shelf quality and physiological aspects of Huaizhi litchi were investigated.The results showed that Huaizhi litchi kept at 5℃ cool storage resulted in a significant decrease of fruit quality and an increase in both relative permeability of pericarp cell membrane and peroxidase activity when compared to the control. The change of carbon dioxide and ethylene evolution of litchi in sealed container during shelf life was also discussed. Related Articles | Metrics

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Effects of food additives and metallic ions on the stability of red pigment from Rubus lambertianus CHEN Bing-hua, LIU Jian-qiu 2001, 30(03): 16-21.  Abstract ( )   PDF (220KB) ( )   The effects of 5 kinds of food additive and 7 kinds of metallic ion on the stability of red pigment from Rubus lambertianus were investigated. The results showed that glucose,sucrose and sodium benzoate had no adverse effects on the stability of red pigment and glucose and sucrose showed a certain fortification; citric acid could increased the stability significantly; Vitamin C could promote the oxidation of pigment. Na+, Mg2+, Al3+, Zn2+ had no effects on the stability of R. lambertianus red pigment while Mn2+ showed definite adverse effect on it and Cu2+, Fe3+ decreased the stability significantly. Related Articles | Metrics

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Nutrient status of longan leading varieties in fertility orchards in Guangxi SU Bin, CHEN Shao-zhen, CHEN Li-xin, SU Guo-xiu 2001, 30(03): 22-25.  Abstract ( )   PDF (172KB) ( )   The nutrient ingredients and quality characters of fruits, N, P, K contents in leaves of longan leading varieties Dawuyuan, Shixia and Chuliang in Guangxi were analyzed. The results showed that there was a definite correlation between nutrient ingredients of fruits and N, P, K contents in leaves. The ranges of N, P, K contents in leaves of longan varieties in fertile orchards were Dawuyuan 1.5×10-2~1.9×10-2, 0.08×10-2~0.12×10-2, 0.48×10-2~0.64×10-2, respectively; Shixia 1.5×10-2~1.7×10-2, 0.09×10-2~0.10×10-2, 0.39×10-2~0.56×10-2, respectively; Chuliang 1.4×10-2~1.8×10-2, 0.08×10-2~0.11×10-2, 0.38×10-2~0.62×10-2, respectively. Related Articles | Metrics

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Effects of different grafting methods on survival percent of kiwifruit LIU Yong-sheng 2001, 30(03): 26-27,49.  Abstract ( )   PDF (134KB) ( )   The experiments with different grafting methods, taking the annual seeding of wild kiwifruit (Actinidia deliciosa) as stock and new cultivar's (Jinkui) one-year shoot as scion wood, were conducted. The results showed that the survival percent of whip grafting and side grafting with single bud scion reached 98.4% and 96.1%, respectively, and the growth of seedlings, i.e. basal diameter, new shoot length, leaf number, was significantly better than those with other grafting methods. They are convenient to operate and can be popularized into forestry production. Related Articles | Metrics

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Investigation of rare and endangered plants in Nanling National Nature Reserve, Guangdong LI Zhen-kui 2001, 30(03): 28-32.  Abstract ( )   PDF (196KB) ( )   There are 36 rare and endangered species in Nanling National Nature Reserve, Guangdong Province, making up 9.3% of the total in China (388 species), including 8 gymnosperms and 28 angiosperms. Among them, 2 are endangered, 20 vulnerable and 14 rare species. The resources of rare and endangered plants in Nanling National Nature Reserve possess the features of richness in composition, obvious tropical nature, antiquity of origin, abundance of endemic elements and diversity of usage. Based on the analysis of characteristics of the resources, some protective recommendations are put forward. Related Articles | Metrics

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Spice plant resources in Huidong Baipanzhu Nature Reserve, Guangdong LI Ye, FENG Zhi-jian, HE Qing-feng, TANG Zhi-yun 2001, 30(03): 33-36.  Abstract ( )   PDF (203KB) ( )   According to the investigation, there are 32 species under 19 families of spice plant in Huidong Baipanzhu Nature Reserve, in which Aquilaria sinensis is precious perfume plant, a grade B state key protected species. They have broad development and utilization prospects. Related Articles | Metrics

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Rooting in vitro and transplanting plantlets of Limonium bicolor CHEN Yin-feng, CHEN Song 2001, 30(03): 37-39.  Abstract ( )   PDF (132KB) ( )   The effects of different concentrations of various hormones on the root number and length of Limonium bicolor were studied and the survival ratio and growth of plantlets in different substrates were evaluated. The results showed that MS+NAA 1.0mg/L gave the best result in root number, MS+IBA 1.0mg/L was best for root length, and the plantlets transplanted in peat and perlite substrate (1:1) resulted in the best growth. The cost of rooting and transplanting of plantlets of Limonium bicolor was also discussed. Related Articles | Metrics

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Species resources and protection of biodiversity in Yongchun County, Fujian Province GUO Zhi-jian 2001, 30(03): 40-43.  Abstract ( )   PDF (166KB) ( )   The status and characteristics of species resources in Yongchun County, Fujian Province are described and the measures of protection are put forward according to the biodiversity in this county. Related Articles | Metrics

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Proper grass species in building lawn in the southern Fujian and techniques of maintenance SHI Jin-sheng, LU Hai-qiang 2001, 30(03): 44-49.  Abstract ( )   PDF (193KB) ( )   The growth characteristics and application of five grasses, Zoysia matrella, Z. tenuifolia, Cynodon dactylon, Eremochloa ophiuroides and Axonopus compressus, which used to build lawn in the southern Fujian are described. The problems of building lawn, i.e. simple grass species, extensive preparation before planting, neglect of maintenance, are pointed out and the techniques of planting, including spread-planting, scattered planting, seed sowing, and its maintenance are also proposed. Related Articles | Metrics

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Cymbidium hybridum infected with insect pests and their controls WU Lian-xing 2001, 30(03): 50-53.  Abstract ( )   PDF (193KB) ( )   The insect pests attacking Cymbidium hybridum, such as blight, soft rot, root rot, anthracnose, leaf blight, CYMV, and scale, spiny white fly, spider mite, aphid and cockroach were reported. The control methods against these insect pests were also discussed. Related Articles | Metrics

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Preliminary study on the shelter-forest construction in the southeast coastal area of Xiamen HUANG Wei-lin, CHEN Jin-xuan, CHEN Song-he, LIU Kai-cong 2001, 30(03): 54-57.  Abstract ( )   PDF (200KB) ( )   According to the geographical situation and the function division of the southeast coastal area of Xiamen, the problem of shelter-forest construction is pointed out and the train of thought and counter measure of it are proposed. The planting technique and species selection of shelter-forest construction are also studied. Related Articles | Metrics

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Taeniothrips eucharii, a thrips newly recorded on narcissus LIN Zhi-ping, CHEN Li-ping 2001, 30(03): 58-59.  Abstract ( )   PDF (1349KB) ( )   Taeniothrips eucharii was discovered for the first time parasitizing narcissus (Narcissus tazetta var. chinensis) in Zhangzhou, Fujian, and the morphological character of this thrips was also described. Related Articles | Metrics

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Chilades pandava, a insect pest of cycas LUO Jia, LIN Li-ling 2001, 30(03): 60-61.  Abstract ( )   PDF (6124KB) ( )   Chilades pandava (Horsfield) is a insect pest of cycas. The larvae feed on young buds and leaves of cycas and the serious damage is observed during the summer and autumn. Related Articles | Metrics

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Embryo culture and plantlet regeneration of Paeonia rockii ZHOU Ren-chao, YAO Chong-huai 2001, 30(03): 62-62.  Abstract ( )   PDF (133KB) ( )   Related Articles | Metrics

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Advances in studies on rolB gene of Ri plasmid from Agrobacterium rhizogenes WAN Xiao-rong, LI Ling 2001, 30(03): 63-68.  Abstract ( )   PDF (138KB) ( )   The gene rolB from Agrobacterium rhizogenes Ri T-DNA plays an important role in hairy root induction in transformed plants, characterized by an abundant proliferation of adventitious roots from the site of infection. The sites of rolB gene, the regulation of rolB gene expression in transgenic plants, and the structure and function of Rol B protein were reviewed in this paper. Related Articles | Metrics

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Advances and application of ethylene receptor inhibitor to horticultural crops SU Xiao-jun, JIANG Yue-ming 2001, 30(03): 69-74.  Abstract ( )   PDF (132KB) ( )   Advances and application of ethylene receptor inhibitor to horticultural crops in relation to their physical properties, stability, characteristics and action effect are reviewed. The perspective of this field is also discussed. Related Articles | Metrics