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10 November 2001, Volume 30 Issue 04
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RAPD analysis of hybrid purity in cauliflower
LI Chuan-yong, HUANG Cong-li, PAN Ai-min, XU Rui-de, XU Wei-dong
2001, 30(
04
): 1-4.
Abstract
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The purity in F1-hybrid cauliflower (
Brassica oleracea
var.
Botrytis
) cultivar was analyzed using Random Amplified Polymorphic DNA (RAPD). A total of 124 DNA fragments ranging from 0.3kb to 3kb were amplified with twenty 10bp arbitrary primers, in which two primers S120 and S174 could be used for purity identification of the F1-hybrid. The results obtained by RADP analysis were comparable to those by field test.
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Genetic diversity of wild rice near the Tropic of Cancer in Guangxi
CHEN Cheng-bin
2001, 30(
04
): 5-9.
Abstract
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)
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The distribution and species of wild rice near the Tropic of Cancer in Guangxi were described and the genetic diversity and utilization were reviewed. Some suggestions such as collection, protection and use of the wild rice germplasm resources were also recommended.
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Present state in using longan and loquat garden nurseries in Fuzhou National Fruit Gene-pool
ZHENG Shao-quan
2001, 30(
04
): 10-13.
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Exploiting and using of natural germplasm resources of longan and loquat nurseries in Fuzhou National Fruit Gene-pool were described. Some problems and perspectives were also discussed.
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A study on pollen morphology of
Cerasus
LEI Hai-qing
2001, 30(
04
): 14-17.
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The pollen grains of 9 species and varieties of
Cerasus
were observed under LM and SEM. The pollen grain is circular or 3-lobed circular in polar view, elliptic in equatorial view, tricalporate and the exine ornamentation is striate. Some differences were observed between species in pollen size and exine ornamentation.
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Utilization of polluted tissue-cultured plants in banana production
CHEN Li-xin, SU Guo-xiu, SU Bin, CHENG Tang
2001, 30(
04
): 18-20.
Abstract
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The utilization of polluted tissue-cultured plants of banana was studied. The results showed that the survival ratio of polluted plants increased significantly and the growth and development were also promoted when the plant roots were soaked in potassium permanganate or cuaminosulfate solution and then planted in sand-bed.
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Comparative experiment on grafting methods of kiwifruit in different seasons
YANG Qing-ping, AI Xiu-lan
2001, 30(
04
): 21-22,26.
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A comparative experiment on grafting methods of kiwifruit in different seasons was conducted in Hubei Province. The results showed that cut grafting was the best method in spring and side grafting with single bud stick gave the best results in summer and autumn. Shade obviously increased the survival percent of grafted seedlings, but no trend was apparent for the good transplant nursery.
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Introduction and culture of
Hylocereus undatus
GUO Cui-ying, SHEN Yu-fen, XU Wen-jiang, LU Ling-ling, BAI Fu-hai
2001, 30(
04
): 23-26.
Abstract
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Hylocereus undatus
was introduced from Taiwan in 1999 and its cultural practice was studied in Xiamen. The results showed that the stem (length 15-20cm, width 4-5cm) rooted after 17-20d of cuttage, the rooting percentage was up to 100% and one year later the length and width reached 213cm and 7-8cm, respectively; the survival ratio of grafted seedling was 70%-90% and sprout grafting had a higher survival ratio; bud bursted after 4d of seed sowing, the germination percentage was 50.9% and one year later the length and width reached 25cm and 3cm, respectively; grafted seedling and cut seedling flowered in the next year and the cut seedling had self fertility. The individual weight of fruit was 673g and the fruit tasted fine.
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Tissue culture and regeneration of
Torenia fournieri
LI Ling, HUANG Qun-sheng, ZHANG Ming-guang, BIN Jin-hua
2001, 30(
04
): 27-31.
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Illumination could promote the germination of
Torenia fournieri
seeds. Adventitious buds were produced from epicotyl on MS medium containing 4PU at 0.1mg/L, NAA at 2mg/L with a 16h photoperiod for 18 days at 25℃. 7~8 adventitious buds were obtained after 25 days of culture. A combination of MS added with 2,4-D at 0.05mg/L and NAA at 0.2mg/L gave the best result for leaf and stem to induce calli, but the callus differentiation to buds was difficult. The tube plantlet cultured on 1/2 MS medium could produce roots and NAA was optimum for root number.
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Introduction and biological characteristics of
Dictyosperma album
HU Jian-xiang
2001, 30(
04
): 32-35.
Abstract
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Dictyosperma album
is a pretty palm tree with dark green arching old leaves and reddish new leaves. It has high ornamental value. The morphological character, biological characteristics, adaptability, ornamental value and utilization of
Dictyosperma album
introduced in Xishuangbanna Tropical Botanical Garden were described.
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Resources and distribution of medicinal pteridophyte in Qingyuan Mountain, Fujian
WU Wen-jie, CAI Ying-qing, GE Qing-xiu, WEI De-shong
2001, 30(
04
): 36-39,44.
Abstract
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The medicinal pteridophytes in Qingyuan Mountain were investigated and 26 species under 15 families, 21 genera were found. The distribution and economic value of pteridophytes are described and some suggestions on their development and utilization are also put forward.
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An investigation of the wild ornamental plants in Shenzhen, Guangdong
LI Zhen-kui, CHEN Tao, FENG Zhi-jian, LI Ye
2001, 30(
04
): 40-44.
Abstract
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According to the investigation, a total of 109 families, 222 genera and 278 species of ornamental plants, including 18 families, 23 genera and 29 species of Pteridophytes; 5 families, 5 genera and 6 species of Gymnospermae; 86 families, 194 genera and 243 species of Angiospermae were identified in Shenzhen. Characteristics and utilization of the resources were evaluated and some suggestions to protect and develop the ornamental plant resources were also put forward.
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Introduction and cultivation of
Chorisia speciosa
,
Pterocarpus indicus
and
Terminalia catappa
SHI Jin-sheng
2001, 30(
04
): 45-48.
Abstract
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)
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(1591KB) (
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Chorisia speciosa
,
Pterocarpus indicus
and
Terminalia catappa
, are the trees for landscaping, introduced in coastal area of Fujian in recent years. The morphological character, biological characteristics, introduction and cultivation of these trees are described. The results show that
Chorisia speciosa
,
Pterocarpus indicus
and
Terminalia catappa
are suitable for garden landscape and road shade in coastal area of Fujian.
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Study on forest culture of 1-year plantation of
Taxus chinensis
var.
mairei
GUO Xiang-quan
2001, 30(
04
): 49-52.
Abstract
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The forest culture of 1-year plantation of
Taxus chinensis
var.
mairei
in different grades with different treatments was studied. The results showed that the tree height and diameter reached their growth peaks and the first height growing-peak was higher than the second while the first diameter growing-peak was lower than the second; classⅠseedlings had a better result than class Ⅱ; the survival rate and growth of seedlings treated with basal dressing were higher than those of seedlings without basal dressing; the optimum growth temperature of seedling was 23~30℃. Based on the analysis of variance, the regressive equations between the height and diameter, branch number were also built.
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Comparative experiment on different planting densities of
Castanea henryi
XIN Wei-hua
2001, 30(
04
): 53-54.
Abstract
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(136KB) (
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Comparative experiment of differet planting densities of
Castanea heryi
was conducted in the main producing area of
C. henryi
in Jian'ou, Fujian Province. The results showed that 4m×5m or 5m×5m is the optimum planting density for the growth and yield of
C. henryi
.
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Tissue culture and rapid propagation of
Haworthia attenuata fa.caespitosa
ZHENG Ming-qiong, YAO En-ying, HONG Li-ping, ZOU Xiao-lu
2001, 30(
04
): 55-56.
Abstract
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(134KB) (
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Recent progress in brassinosteroid signal transduction research
MENG Xiang-chun, LI Ling, WANG Xiao-jing
2001, 30(
04
): 57-60,67.
Abstract
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The molecular biological methods and its using in BR signal transduction research and the mechanism of BR regulating genes expression are introduced. The progress in BR signal transduction research is reviewed.
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Relationship between Ca
2+
and stress-resistance of fruit trees
CHEN Li-song, LIU Xing-hui
2001, 30(
04
): 61-67.
Abstract
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(287KB) (
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The relationship between Ca
2+
and stress-resistance of fruit trees, including distribution of cellular Ca
2+
and regulation of Ca
2+
homeostasis, messenger role of Ca
2+
in ‘stress stimulus-responses coupling、 in fruit trees and improvement of fruit tree stress-resistance were reviewed in this paper.
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A review of application of 1-MCP to storage and transport in horticultural crops
HU Wei-rong, JI Zuo-liang
2001, 30(
04
): 68-74.
Abstract
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(286KB) (
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1-Methylcyclopropene(1-MCP) is a new ethylene action inhibitor which can inhibit ethylene responses effectively in various plants, and it has great potential for utilization in many commercial horticultural crops. The advances in these studies are reviewed in this paper.
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