• 中国中文核心期刊
  • 中国科学引文数据库(CSCD)核心库来源期刊
  • 中国科技论文统计源期刊(CJCR)
  • 第二届国家期刊奖提名奖

1998 Vol. 11, No. 2

Display Method:
Studies on Some Scion-rootstock Physiological Indexes Related to Micrografting Survival of Walnut
Pei Dong, Xi Shengke, Dong Fengxiang
1998, 11(2): 119-123.
Abstract:
Walnut microshoot grafting is a new technique using juvenile seedlings as rootstocks and shoots in vitro as scions to propagate walnut cultivars.Some tests were carried out to focus on the relation between scion-rootstock physiological states and grafting survival.Results were that during the first main leaf expanding,there was a significant change of the physiological metabolism in rootstock seedings,which was closely related to the grafting survival.Before the leaf was fully expanded,the level of cytokinin,auxin,water content,glucose and levulose in rootstock was higher,the grafting uniting can easily be achieved and the survival rate was more than 80.8%.After the leaf expansion,the physiological indexes went down and the grafting uniting became more and more difficult.The physiological state on shoots in vitro and their grafting also demonstrated that the tender,fast growing and strong shoots showed higher levels of the physiological indexes,and their grafting survival rate was higher,whereas the old,thin and longer shoots with twisted leaves showed lower levels of the indexes,and their grafting was difficult.
Relation between Callus Growth and Flavonoids Accumulation of Ginkgo biloba
Fang Jianjun, Que Guoning
1998, 11(2): 124-129.
Abstract:
Young stem of Ginkgo biloba were used to induce callus,and the relation between callus growth and flavonoids accumulation were studied.The result indicated that the ideal medium for a large volume of callus induction is MS supplemented with 2.5 mg/L 1 Naphthaleneacetic acid and 1 mg/L kinetin.In order to subculture callus for several cycles,it is suitable to subculture the callus by using middle salt concentration medium in 25~30 days.The flavonoids were identified in the callus cultured under light.The supreme quantity of flavonoids reached to 1.2 mg/gDW,within it there were 17.5 μg/gDW quercetin.Production of flavonoids was related to callus growth,and the con.of NH4+ was an effective factor.
On Compositions of Both Pupa and Moth of Dendrolimus houi
He Jianzhong, Lu Nan, Niu Jianhua, Huang Ying, Cui Yongzhong
1998, 11(2): 130-134.
Abstract:
This paper deals with compositions of both the pupa and moth of Dendrolimus houi. The contents of protein and chitin of pupa are 581.8 g/kg and 74.7 g/kg respectively,being lower than those of the moth 683.0 g/kg and 178.3 g/kg;while the pupas fat and carbonhydrate are obviously higher than those of the moth.Both the pupa and moth have 15 amino acids(tryptophan not attempted).The carbonhydrate in pupa is 5.21 times as much as that of the moth,demonstrating that a quantity of carbonhydrate is used up in the process of molting;and fat content of pupa is 225.2 g/kg,being 3.42 times of that of the moth;of all the fat acids,the change of linolenic acid from pupa to moth is noticeable.
Relationship between Soil Factors and Growth or VAM nfection in Casuarina Plantations in Southern China
Zhong Chonglu, Gong Mingqin, Kang Lihua
1998, 11(2): 135-141.
Abstract:
At 15 typical sites in Casuarina plantations in southern China,49 soil samples were collected,and 26 mixed samples were analyzed for 12 indexes:pH,available P,N,K,Ca,Mg and B,total Cu,Zn,Mn,Co and Fe. Results showed that there were significant correlation(p =0.10~0.01)between soil Ca,Zn,Mn and annual average tree hight increment(m/year),between soil pH,Co,Mn and annual average tree diameter at 1.3 m high(cm/year),and between soil P,K,Mg,Fe,Mn and average seedling diameter at ground level,and between soil P,B,Cu,Fe and VAM infection.But there was no significant difference between N and the 5 indexes.Besides,the effect of soil types on VAM infection was discussed.
Cd- absorption of Wood Species in Beijing Fangshan District
Liang Jingsen, Shang He, Li Baizhong, Yuan Gongying, Liu Zeng
1998, 11(2): 142-146.
Abstract:
It was proved that it is feasible to harness Cd-pollution with the means of forest project composed mainly of woody plants.To solve the problem of Cd-pollution in some areas of Fangshan District in Beijing,Cd absorption and Cd contribution of 31 woody species selected in the experimental forest are compared.Cd absorption and Cd accumulation of 10 woody species selected from different locations in Fangshan District are as well compared.According to the storage capacity and the accumulative efficiency of Cd, Salix babylonica、Salix matsudana、Ailanthus altissima、Sophora japonica etc.are the best ones for harnessing the Cd-pollution among the woody species in Fangshan District.
Study on the Change of Soil Temperature in Peach tea Artificial Compound System and Tea Ecosystem
Huang Shoubo, Zhou Zikang, Fu Maoyi, Fu Jinhe
1998, 11(2): 147-151.
Abstract:
The soil temperature observation in different density of peach tea ecosystem and pure tea ecosystem have been made in the summer of 1993 in Linan City,Zhejiang Province. The result indicates that when the depth of the soil increases in the peach tea ecosystem and pure tea ecosystem,the amplitude of temperature decreases in accordance with geometric series and the phase of temperature trailed in accordance with isogap series. The temperature gradiene variation of soil are similar as the variety character of soil temperature. According to the soil temperature variance with the depth of soil,four types of the vertical distribution of soil temperature were divided,namely:(1)solar type,(2)radiation type,(3)transitional type in early morning,(4)transitional type in evening. Compared with the pure tea ecosystem the daily amplitude of earth′s surface temperature at 0 cm,that the tea ecosystem decreases 18.2℃ in the clear day and 9.7℃ in the cloudy day. Above changes are favourable for increasing fruit trees and tea plants.
Selection of Appropriate Explants for Multiplication,Shoot and Root Induction in Tissue Culture of Daemonorops margaritae
Liu Ying, Zeng Bingshan, Yin Guangtian
1998, 11(2): 152-155.
Abstract:
This paper deals with the selection of appropriate explants for multiplication,shoot and root induction in tissue culture of Daemonorops margaritae. The results indicated that the newly formed explants at a length ranging from 1.1~2.0 cm are good for the multiplication,the explants at length ranging from 2.1~4.0 cm and without developed leaves are optimal material for shoot induction,while shoots at a height over 4 cm can be well used for rooting. All these results provided information for massive propagation of D. margaritae through tissue culture at industrial scale.
Estimation of Amount of Carbon Pool in Natural Tropical Forest of China
Li Yide, Zeng Qingbo, Wu Zhongmin, Zhou Guangyi, Chen Bufeng
1998, 11(2): 156-162.
Abstract:
Based on the data from the Jianfengling Stationary Research Station for Tropical Forest Ecosystem in Hainan Island of China,this paper estimates the amount of carbon pool of natural tropical forest in Hainan Province and Yunan Province. The results indicate that the amount of carbon of Hainan natural tropical forest(including pristine and regenerated forests)is up to 71.9~73.4 million tons,and is at least 66 million tons in Yunnan Province. So the total amount of carbon stored in tropical forest of China is at least 137.2~138.7 million tons.
Studies on Polypore Fungi of Bawangling Natural Reserve,in Hainan Island
Wu Xingliang, Li Taihui, Zhang Weimin, Zhong Qiongxin, Song Bin, Guo Jianrong
1998, 11(2): 163-168.
Abstract:
The natural reserve area of tropical forest at Bawangling located in Hainan Island is well protected,in which there are 82 species of polypore fungi and is one of the area that rich in polypore fungi in China. This paper briefly deals with the resources and environment of polypore fungi in Bawangling Natural Reserve. Bawangling polypore fungi can be divided into the following four ecological types,by species and quantity, the first is the polypore fungi of montane rain forest,the second is the polypore fungi of valley rain forest,the third is polypore fungi of mossy forest and elfin woodland.
Studies on Stability for Parameters in Height-diameter Curve of Chinese Fir
Du Jishan, Li Xifei
1998, 11(2): 169-174.
Abstract:
For height-diameter relationship model H=1.3+a1Hdb1 > exp(-b/D),the effects on stability of the model parameters by thinning and four site factors(aspect,orientation,slope and elevation)are analyzed respectively with or without limit condition based on 148 plots of Chinese fir in Kaihua County of Zhejiang Province and Fenyi County of Jiangxi Province.The results have shown that thinning,different aspects and elevation have no significant influence on the parameter b. But thinning and the above mentioned 4 site factors have significant influence on the parameters a1 and b1.The effect order from big to small on the stability for parameters in the height-diameter relationship model is slope,orientation,elevation and aspect.
The Investigation and Identification of Plant parasitic Nematodes on Ornamental Plants in Baotou Area
Zhang Xiaoqin, Wang Dongsheng, Shi Aixia, Li Qiaoyun
1998, 11(2): 175-178.
Abstract:
In 1993~1996, the plant-parasitic nematodes on the ornamental plants in Baotou,Inner Mongolia were investigated and identified.Based on their morphological characteristics,9 species belonging to 6 genera of nematodes were indentified.They are Helicotylenchus imperialis Rashid et Khan, H. minzi Sher, H. tumidicaudatus Phillips. Meloidogyne arenaria Neal,M. hapla Chitwood,M. javanica Treub, M. incognita(Kofoid et White), Quinisulcius capitatus Allen, Rotylenchus laurentinus Scognamiglio et Talame, Longidorus sp.and Xiphinema sp..Among them, Helicotylenchus tumidicaudatus and Quinisulcius capitatus are new records in China.
Study on the Early Prediction of Breeding Value for Paulownia tomentosa
Ma Hao, Li Peijian, Shen Xihuan
1998, 11(2): 179-185.
Abstract:
1~9-year-old height,diameter of breast height(DBH),stem height(SH),diameter of half height(DHH)and volume were measured for 26 Paulownia tomentosa provenances,and the breeding values of those traits were predicted directly or indirectly.The results showed that the breeding values of the characteristics measured at age 9 might be precisely predicted by DBH observed in the early stage.When DBH was used at age one with selection intensity of 0.80,the direct and indirect selection efficiencies reached to 79.71%,81.83%,56.77%,75.07% and 76.20% for height, DBH,SH,DHH and volume at the age of 9 respectively.Furthermore,the selection efficiencies per year were 398.57%,409.13%,283.84%,375.35% and 381.01% for the traits correspondingly.Therefore,the early selection for Paulownia tomentosa provenance should conducted in the early stage with less intensity.
Study on the Measurement of Wood Properties for Excellent Clones(New Variety)of Populus tomentosa
Gu Wanchun, Gui Fu, Yu Zhimin, Mu Luqin, Sun Cuiling, Tian Qifan
1998, 11(2): 186-191.
Abstract:
13-year poplar clonal stand in the 3 sites of Beijing,Hebei,Henan are observed for their growth character. 12 clones including 10 clones and 2 CK are tested for their wood properties. The test material comes from the test stands from Daxing,Beijing by sampling one tree from each of the 3 repeats for each clone. The analysis result shows significant variation of fiber length,fiber width and length/width ratio among the poplar clones,their repeatability is 0.777,0.537,0.676 respectively. The poplar clones,timber total density,spring wood density,fall wood density have significant variation,their repeatability is 0.536,0.517,0.429 respectively. Fiber length(YL)with age assumes exponential curve growth model: YL =7.195 5 e-0.836 9(t-1). Total density(YD)with age assumes fluctuated growth model: YD=0.505 3+0.000 67t. The heritablity is independent among the properties of fiber length,fiber width. 8 excellent clones are selected for Beijing,through the economical weights analysis and index selection of industrial timber properties such as volume increment,timber total density,fiber length and stem straightness. The comprehensive breeding gain of industrial timber can be higher than 20%. According to the conclusion of wood properties resulting from Beijing,excellent clones for two sites including Hebei and Henan are chosen.
Studies on Determining Control Action Threshold by Frass drop Amount of Sucra jujuba
Liu Xianqian, Jing Ying, Wang Manqun, Shi Guanglu, Yao Yanming
1998, 11(2): 192-197.
Abstract:
From 1992 to 1995,systematic studies had been made on the frass-drop amount and leaf eating amount of Sucra jujuba, the leaf yield of jujube tree,and the influences of different leaf losing levels on fruit output of jujube trees. The mathematic model of frass-drop amount and average temperature,the estimatic survey model of leaf yield of jujube tree,and the dynamic control action threshold model according to frass-drop amount in per time and per area were set up as: F=0.562 9+0.016 2T,(Total leaf yield area)=(total spur of jujube)×(average jujube deciduous spur of per spur)×(average leaves of per jujube deciduous spur)×(average leaf area), Y=(226.194X3-373.754 6)X3-2(0.565 9+0.016 2T)respectively.The results of field examinations showed that the accuracy of all these models was over 90%.
Study on the Biology and Control of Hylobitelus xiaoi Zhang
Li Zongshun, Liu Yusheng, Peng Jinfu, Shen Guangpu, Liao Xiaoping, Zhao Xiuxie
1998, 11(2): 198-202.
Abstract:
Hylobitelus xiaoi Zhang is a new insect species that bores seriously in the base trunk bark of the foreign pines——slash pine and loblolly pine mainly. The pest has one generation biennially and overwinters as larvae and adults in Jiangxi Province. The overwintering adults appear in middle-late March and lay eggs in late April. The larvae hatched in middle May and start overwintering in early December,become active in the following middle March and pupate in middle August. The adults emerge and overwinter in their pupal cells in middle September. For the adults, activities can not been seen easily,sivicultural measures, such as planting mixed fir pine forests,avoiding planting of large areas of pure foreign pine forests,removing infested trees and brood trees in winter should be taken as the main measures of control. When the density of the pest population is large,besides above measures,white muscardine can be applied from April to May,and 40% omethoate diluted with water(1∶1 000)can be sprayed for 1~3 instars larvae to control the pest.
Genetic Variations among Multiple Levels in Main Economic Traits of Chinese fir
Qi Ming
1998, 11(2): 203-207.
Abstract:
Genetic variations among multiple levels in main economic traits of Chinese fir had been studied by means of two-level plantation of provenance-family at 10-year-old. The main results are as follows:(1)In the same interested trait,component of variance among individuals within familiesthat among provenancesthat among families within provenances;but heritability of provenancesthat of families within provenancesthat of individuals among families. Genetic improvement potential at different variation levels is distinct. Improvement potential of provenancethat of individual within familiesthat of families within provenances,in general. Joint selection of multiple levels will produce the biggest genetic gains.(2)In the same variation level,there are different genetic improvement potentials in different interested traits. Thus,when genetic improvement scheme of Chinese fir will be worked out,appropriate objective should be determined in accordance with different traits.(3)Selecting the good individuals within good families within good provenances,their selective advances of volume,diameter,total height,height under the first living branch are 50.55%,23.39%,17.71%,30.81%,respectively. They are much more bigger than those from the first generation genetic improvement of Chinese fir. So,at present we must pay attention to the second generation genetic improvement of Chinese fir. Both the second generation seed orchard and vegetative propagation are used for utilizing the achievements of genetic breeding and improvement of Chinese fir today.
Techniques for Afforestation in the Extremely DegenerativeMountainous Land of Dry and Hot Areain Nanjian,Yunnan Province
Li Kun, Hou Kaiwei, Zhang Zhijun, Hou Bin
1998, 11(2): 208-213.
Abstract:
Studies have been made on the techniques for afforestation for six years in the extremely degenerative mountainous land of dry and hot area in Nanjian,Yunnan Province. The tentative results have been obtained. A few species of Eucalyptus and Acacia introduced from Australia,and Tephrosia cardida,Cajan cajanus,Pueraria wallichii etc. are suitable for growing in the area. Measures for regulating surface run-off such as level steps with level trenches,ponds,dams under the present economic and technical conditions can check 55% of the total surface run-off,and increase soil water content and raise the survival rate of these trees to 10%~20%. It is convenient for afforestation management. On the basis of the experiments,this set of afforestation techniques is effective for restoring vegetation in the extremely degenerative mountainous land of dry and hot valley area in Yunnan Province.
Comparative Study on the Environmental Quality between Forest and Farmland Region
Lu Hongfei
1998, 11(2): 214-217.
Abstract:
This paper deals with the environmental quality of water, air and soil of the Pangqian forest region in Shuanglong famous scenic spot and the farmland region in Sumeng Township,Jinhua City,Zhejiang Province.The results show that the environmental quality of the forest region is better than that of the farmland,especially,the water quality of the former conforms to the standards of WHO for drinking water.Good environmental condition of the forest region was suitable for developing tourism and recreation,and planned to develop sightseeing-type agriculture and garden-uncontaminated vegetables,fresh-fruit.
Some Senescence Characteristices of the Leaf of Pinus taiwanensis
Li Donglin, Yan Jinghua, Cao Hengsheng, Cai Liqiong, Ye Yaoqing
1998, 11(2): 218-221.
Abstract:
This paper was about the study on senescence of Pinus taiwanensis.The results showed:with the increase of age,(1)the contents of chlorophyll and protein,the radio of chlorophyll a/chlorophyll b declined;(2)the activity of SOD and CAT decreased and decrease of the activity of CAT was more significant;(3)the content of MDA rose.It is concluded that the content of chlorophyll and protein,the radio of chl.a/chl.b could be regarded as the index of senescence of P. Taiwanensis. There was a direct interrelation between leaf senescence and free radical.
A Control Technique to House Termite Using the Herb Smoke Generator
Xie Mingrong, Xie Huaming, Xie Baoguo
1998, 11(2): 222-224.
Abstract:
The herb smoke generator is made by the juice of tree, Celastrus angulatus,added with some incendiary agent.Through the experiment,it shows notable results to control house termite, Coptotermes spp.,with many advantages,such as fast effectiveness,thorough control,no pollution,low cost.A control technique is provided in this paper for the control house termite of wood and garden tree.
Testing the Seed Vigor of Phellodendron chinense by Xc-method
Fu Dali, Sun Jinghua, Lu Jiuru
1998, 11(2): 225-228.
Abstract:
The technique and numerical law of testing the seed quality of Phellodendron chinense are explored theoretically and practically in this paper.The results indicate that the seed vigor and germination ability can be tested by X-ray contrast method(Xc-method).Between the seed germination percentage(Ga)and Xc-vigarbility(Xv),the linear correlative relation is Ga=0.941 7 Xv-10.001, with the contrast conditions of 20%~30%BaCl2,20~40℃ and 5~7 h and the judging standards are given. In testing seed vigor index(Vi), two quantitative indexes are determined,which are the seed length(L)and the Xc-vigarbility. Moreover, the nonlinear model, Vi=0.000 1 L1.887 4 Xv1.749 5 is established.
1998, 11(2): 229-230.
Abstract: