• 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

1997 Vol. 10, No. 6

Display Method:
Outplanting of Rattan Tube Seedling
Zeng Bingshan, Xu Huangcan, Liu Ying, Yin Guangtian
1997, 10(6): 563-569.
Abstract:
This paper deals with outplanting of tube seedling of Daemonorops margaritae(Hance)Becc., Calamus egregius Burret, C. simplicifolius Wei and C. dioicus Lour. The results show that:(1)The status of tube seedling plays an important role in outplanting. The criteria are height4.0 cm,total length of root4.0 cm and with fibrous root;(2)Pearlite,sand and peat are suitable media for outplanting;(3)Solution of 1/800 bavistin is a good bactericide;(4)Solution of 1.0 MS macroelement is good for nutritional supplement;(5)The period from March to June is the best season for outplanting with a survival rate more than 90%.
Study on the Relation between Witches′ Broom,Protein and Amino Acid Change in Paulownia Leaves
Fan Guoqiang, Jiang Jianping
1997, 10(6): 570-573.
Abstract:
This paper dealt with the SDS polyacrymide gel electrophoresis of proteins and analysis of the amino acids in the diseased and healthy leaves,at the same side and same height,of the same strain of Paulownia catalpifolia,P. elongata,P. albiphloea and P. kawakamii respectively. The results indicated that the leaves of 4 species of Paulownia tress with witches′ broom had one protein band,of which molecular weight was 12 KD,which did not appear in the healthy leaves free of phytoplasmas. Moreover,the protein quantity in the affected leaves was more than that in the healthy leaves free of phytoplasmas.Moreover,the protein quantity in the affected leaves was more than that in the healthy leaves free of phytoplasmas. At the same time,there was significant difference on the amino acids between the healthy and diseased leaves of P. catalpifolia and P. kawakamii. The amount of cystine in the affected leaves was higher than that in the healthy leaves,but the change of amount of phenylalanine in the affected and healthy leaves was contrary. These changes of proteins and amino acids in the leaves might be related to the witches′broom of the Paulownia trees.
Research on the Cultivated Varieties of Castanea henryi
Gong Bangchu, Chen Zenghua
1997, 10(6): 574-580.
Abstract:
The cultivated varieties of Castanea henryi were investigated in Jianou City of Fujian Province,the main production area of C. henryi in China. The 5 cultivars of large-size nut type of C. henryi(i.e.Wukezhangmang、Wenyanghong、Zhangmangzi and so on)contain 70~101 nuts/kg and 8 cultivars of mid size nut type with 102~135 nuts/kg. The nutrient components of starch,protein,sugar and amino acid were analysed for the first time,and showed greater differences among the cultivated varieties. The cultivated varieties of the highest nutrient content were Maisaizi,Zhangmangzi and Wukezhangmang,and their content of protein,sugar and amino acid were more than 9.9%、17.8% and 6.1% respectively.
Study on the Genotypic Stability in Loblolly Pine
Song Yunmin, Zhang Mingsheng
1997, 10(6): 581-586.
Abstract:
The Eberhart-Rusell stability analysis method has been used to evaluate the genotypic stability and site productivity of 19 loblolly pine provenances. The results of this study showed that:(1)6 provenances including Pasquotank N C,Charleston S C,trinity T X,Livingston L A,Georgetown S C and Junes M S were found to have high productivity,stability and wide adaptation. There are three provenances(Nassau F L,Evans G A,Marion F L)which were found to have the high productivity,low stability and could grow at sites specially appointed.(2)Loblolly pine can have a great development potential at low mountain and hilly regions in eastern parts of Sichuan and Guizhou.(3)In order to bring the superior provenances into full play in the afforestation in our country,more attention should be paid to the selection,improvment and management of the planting site besides the superior provenances selection.
Investigations on the Nutritional Value of the Pupa of Dendrolimus punctatus wenshanensis
He Jianzhong, Cui Yongzhong, Huang Ying, Lu Nang, Niu Jianhua
1997, 10(6): 587-590.
Abstract:
Pine caterpillars(Dendrolimus spp.)are the most destructive pests in China,while D. punctatus wenshanensis is a local serious species in Yunnan and some other provinces in China.From viewpoint of utilization and exploitation,this paper mainly deals with the nutritional value of its pupa.Its protein content amounts to as much as 612.6 g/kg,with 15 amino acids detected;the fat content is 197.5 g/kg,in which unsaturated fat acids is up to 614.6 g/kg,and the indispensable fat acids 284.0 g/kg.
Study on Selection of Eucalyptus Species/Provenances and Progeny
Xue Huazhen, Wu Zhiyang, Chen Xia, Lin Kangluan, Lu Guohuan, Kuang Bingchao
1997, 10(6): 591-598.
Abstract:
The results of 5-year study on Eucalyptus species,provenances and progeny trials involving 9 species and 8 provenances and 14 progenies(including 1 hybrids of E. urophylla×E. grandis)at Xinhui City,in centre of Guangdong Province showed that growth differences among species and provenances and progenies were highly significant.The growth of seedlot No.3 E. urophylla from superior trees of provenance trials(S14534)in Dongmen State Forest Farm of Guangxi region,2 provenances and 1 hybrid of E. urophylla×E. grandis and seedlot No.13544 E.tereticornis form 40 km N of Gladstone,QLD were better of all,with 35% of selecting gain at adaptability and growth characteristics.The best growth performance was from the superior trees of a provenance trails(S14534)in Dongmen State Forest Farm with a highly yield of 89.03 m3/hm2 at the fifth year.There were poor growth performances of seeds selected from Leizhou Forest Bureau of E. cloeziana,E.ABL No.12 and 2 progenies of E. urophylla due to the lack of an effective pollen isolation and a genetic control for seed production.
The Review of Studies on Stand Basal Area Growth Model
Du Jishan, Tang Shouzheng
1997, 10(6): 599-606.
Abstract:
Stand basal area growth model is a main component of stand growth and yield prediction model system.Based on the analysis of the common stand basal area growth model such as Richards model and Schumacher model,four important questions in study on stand basal area growth model are summarized as follows:(1)Three variables should be included in the model i.e.site quality index,age,and stand density index.(2)Thinned and unthinned stand growth model should be considered at the same time.Furthermore,the method of index of suppression used for basal area prediction for thinned stands is introduced in detail.(3)The construction of thinning index needs stand factors before thinning and after thinning.(4)The proposed model should have the desirable properties,such as mechanism, asymptotic property,compatibility,monotonicity,and the invariance for projection length.
Research on the Effect of Litter on the Nutrient Characteristics in Chinese Fir Plantation
Zheng Linxun
1997, 10(6): 607-611.
Abstract:
In order to study the cultivation nutrition of Chinese fir plantation systematically,12 sample plots were selected from different stands in its central producing area, Shunchang County of Fujian Province.The sample plots were arranged based on the site index order of 18,16,14 index class with the stand age order of 5,10,15,19 years.The research results are showed as follows:(1)The litter of Chinese fir includes the fallen and no-fallen dry branches and leaves,the function of no-fallen part could not be ignored in Chinese fir stand.(2)The accumulation of fallen branches and leaves will increase with the stand age and site index.But it is very small in 5-year and 10-year stands,and very big in the stand after 15 years.Meanwhile,it increases along with the decrease of site index.(3)The total nutrient content of Chinese fir litter enhances following the increase of site index;but it has no obvious change in the stands at different ages.(4)The nutrient accumulation of Chinese fir litter(including fallen and no-fallen leaves and branches)increases with the raise of site index.Changing with the stand ages,it will be at the highest point in the stands at age 10,and then increases with the stand age.Among them,the nutrient accumulation in no-fallen litter has the same situation,and it plays a very important role in total litter,that is one of Chinese fir characteristics.But the nutrient accumulation in fallen litter increases constantly with the stand age,and increase along with the raise of site index at the age of 10.
Growth and Productivity of Castanopsis fargesii Stands
Tong Shuzhen, Ye Fen, Zhang Jianguo, Zhan Yousheng, Sheng Weitong
1997, 10(6): 612-618.
Abstract:
To determine the growth process and productivity of Castanopsis fargesii Franch stands,9 average trees were sampled and analyses of tree growth process were done based on a stand investigation in 10 sample plots in C. fargesii stands and 2 sample plots in Chinese fir stand,in Hongdeng Forest Farm of Shaowu,Fujian Province.The results showed that:the total increments of DBH,tree height and individual volume of trees increased as age of trees went up; DBH increased fast before 20 years old;the growth of tree height were fast before 16 years old;and no decline evidence of timber increment occurred until age of 36 in the stand.Before the climax of DBH increment and of mean increment of height occurred,their increment went up as age of trees increased;but declined after the climax.The increment climax of DBH occurred at age of 12 and 15 in high quality site and low middle quality site respectively;the increment climax of height occurred at age of 10,8 and 12 in high,middle and low quality site,respectively.The average increment of timber volume went up as tree age rose until the age of 36 in high and low quality site;moreover,its climax emerged at the age of 34 in a middle quality site.The yearly increment of DBH and height fell down as the age went up.Yearly volume of timber increased as the age went up before the increment climax emerged;but declined after the climax,in which its increment climax of timber volume occurred at age of 28,22 and 26 respectively.Besides,the total timber volume of C. fargesii stands was lower than that in Chinese fir stands in similar site,but the biomass of tree layer was higher than that in Chinese fir stands.
Studies on the Forecast and Population Dynamics of Adult of Anoplophora glabripennis
Gao Ruitong, Li Guohong, Wang Kedong, Sun Jinzhong
1997, 10(6): 619-623.
Abstract:
The occurrence of adult Anoplophora glabripennis in the field can be predicted by using bait trees method.There is a close relationship between the population dynamics of A. glabripennis and the poplar species,the tree age and index number of climate integral.The number of eggs deposited on Populus×euramericana cv.‘Luisa Avanzo’is 2.7 times and 14.5 times of P.×eur. cv.‘I 214’ and P. deltoides cv.‘I 69/55’.The egg number on ‘I 69/55’ of three years old trees is 8 times of that on the five years old trees.The surviving rate of early instar larvae before overwintering has a positive relationship with the index number of climate integral in July to September.It is considered primarily that there is a five year occurrence cycle in the population dynamics of A. glabripennis.
Five Years′ Growth Response of Young Slash Pine to Fertilization
Hong Shunshan, Hu Bingtong, Huang Xiaoqin, Xiao Qixu, Li Zuxun
1997, 10(6): 624-628.
Abstract:
The fertilization trial of young slash pine(Pinus elliottii)was established on the quarternary period red earth with low organic matter content in Yongfeng County of Jiangxi Province to examine the growth responses of N、P、K application and the effects at different dressing period.The growth responses during the first five years after fertilizing showed that the maximum stocking was 42.01 m3/hm2 from the NP treatment,as dressing N 100,P2O5 100 kg/hm2,resulting in 90% volume increase.Alone phosphours fertilizing,as dressing P2O5 50,100,200 kg/hm2 at planting,resulted in 34%~74% volume increase. No significant differences of growth response occurred in various fertilizing levels of alone P treatments.However,fertilizing P at planting gave more growth response than dressing after planting.Though obvious negative response in N alone application during the first three years after dressing,the negative response disappeared by the end of the fifth year.No significant response occurred in K application.
Influence of Sample Numbers of Offspring Tested on Genetic Analysis of Quantitative Traits
Qi Ming
1997, 10(6): 629-633.
Abstract:
Chosing the 9×9 half diallel cross of Chinese fir plantation at the age 7 as research material,partial data with 8,16,24,32 block repeats randomly were sampled from total data(40 block repeats),respectively.Variance analysis and combining ability analysis were carried out.From the viewpoint of both random model and fixed model,we investigate,in an all-round way and in a systematic way,that offspring sample numbers tested influence on genetic analysis of quantitative traits.The results show that there is a significant effect of sample numbers of offspring tested on genetic analysis,and it varied with research traits.This conclusion tells us in progeny testing and in statistic analysis,each treatment must have a suitable sample numbers of offspring tested,and so,the results of experimental design and statistic analysis are correct and reliable.
Studies on Prediction Methods of Seed Crop for Masson Pine(Pinus massoniana)
Yu Fangyuan, Chen Yousheng, Xiao Shihai, Zhou Jianming
1997, 10(6): 634-638.
Abstract:
A three-year investigaton has been made to predict cone and seed crop by means of counting number of visible cones in crown from an observation point,counting number of cones in certain informatives section of crown and cone cutting at Qingliu Masson Pine seed production stand.The results show that above methods can easily be and precisely used to predict cone and seed crop of masson pine.
Tideland Pollution in Guangdong Province of China and Mangrove Afforestation
Zheng Songfa, Zheng Dezhang, Liao Baowen, Li Yun
1997, 10(6): 639-646.
Abstract:
Based on the available knowledge of pollution ecology of mangrove,combined with the data on tideland pollution in Guangdong Province,the paper conducts a scientific judgment on whether some polluted tidelands in this Province can be sued for establishing mangrove plantations or not so as to provide a scientific guideline for selecting the species to suit a tideland or selecting a tideland to suit the species in constructing ecological and public welfare mangrove system along the coast of the Province at present.Moreover,it also expounds the necessary scientific procedures to be adopted in establishing mangrove plantations on polluted tidelands and puts forward several important problems which must be solved as soon as possible and the primary ideas to find a new branch of silviculture——pollution silviculture of mangrove.It is concluded from the study and analysis that the tidelands listed in the table 1~4,which are suffered from oil-pollution,can not be used for establishing mangrove plantations before some effective purifying measures are taken or oil resistant species are selected out or in the case of that oil-pollution is still taking place,especially the sites where oil content of seawater is higher than that of the third class seawater quality in national standard and where both the seawater and soil are polluted by oil;and that afforestation on the tidelands in which the soil was polluted by Cu and Zn has to be acted with a prudential policy.
Studies on the Control of Snow Blight of Spruce
Yue Zhaoyang, Zhang Xinping, Liu Zhenkun, Wang Bo, Li Xinhua, Huang Xinping
1997, 10(6): 647-650.
Abstract:
This paper is concerned with the methods,time and fungicide selection for the control of snow blight Lophophacidium hyperboreum. The results show that the control effect of mixed thiophanate-methyl zineb and carbendazim or alone is notable in nuresery seedling and regeneration in late fall(October)and the best effect is from the tests of the integrated control and demonstration popularization by combination of the ways of quarantine inspection and control.
Studies on IDX Method for Testing Viability of Loblolly Pine Seeds
Shen Yongbao, Gao Handong, Yu FangyuanJin Tianxi, Zeng Xianzhi, Yu Hong
1997, 10(6): 651-654.
Abstract:
This paper choses water as contrast agent for testing loblolly pine seed viability.The IDX method proceeded as follows:The seeds were soaked in water at 25 ℃ for 24 hours,then put on germination medium at 25 ℃ for 24 hours.After that the seeds were dried at 30 ℃ for 5 hours with SiO2.The dried seeds were radiographed with NO.3 enlarging paper under the following condition:Voltage=25 kV,electric current=3 mA,exposure time=70 s,focus-film-distance=25 cm.The image of seed with seed structure was considered as dead seed.According to this standard,the seeds viability by IDX method agreed quite well with the actual germination percentage.
Chemical Weed Control with Sulfometuron in Apple Orchard
Wu Juying, Jiang Goukeng, Jia Chunhong
1997, 10(6): 655-658.
Abstract:
Two year field studies were conducted to determine efficiency of sulfometuron for weed control in apple orchard.Pre-emergence application of sulfometuron at 0.015 kg/hm2 provided good weed control one month after treatment.The term of effective control lasted for 70 days when sulfometuron was applied at 0.025,0.045 and 0.09 kg/hm2,control efficiency was 85.5%~100%.But above treatment had poor control to pernual weed,only 12.0%~68.0%.Post-emergence application of sulfometuron at 0.060 and 0.090 kg/hm2 gave significant suppress of weeds 40 days after treatment and the suppressing level of plant height and weight were 75%~85% and 78.2%~90.0%,respectively.Sulfometuron plusing diuron(1.20 kg/hm2),armzine(1.20 kg/hm2)or glyphosate(0.30 kg/hm2)improved the level of weed control compared with sulfometuron post-emergence used alone.All treatments had no bad effect on the growth of apple tree compared with the check.
Effect of Cutting Length on Rooting and Growth of Two-year-old Plantlets of Larix kaempferi in Nursery
Wang Xiaoshan, Wang Jianhua, Wang Youcai, Dong Xiaoguang, Chang Guishu, Cui Zhenli
1997, 10(6): 659-662.
Abstract:
Effect of cutting length of Larix kaempferi on rooting and growth of rooted cuttings was studied in a nursery.Cuttings in different sizes were all rooted satisfactorily(88%~99%)though rooting percentage of cuttings of 10 cm in length was significantly higher than that of cuttings of 15 cm or 20 cm in length.The height of rooted cuttings in the firest yar varied significantly according to the length of cuttings.If the height of rooted cuttings was higher or equal to 16 cm in height,the survival percentage of rooted cuttings after being transplanted in the field,percentage of two-year-old plantlet harvested and percentage of first class plantlets were significantly or obviously higher than that of the rooted cuttings of 12.2 cm in height.Comparing to the cuttings of 10 cm in length,the cuttings of 15 cm,20 cm in length could produce more two-year-old platlets and more plantlets of first class per 100 cuttings.
Chromosomal Numerical Variations in Regenerated Plants of 3 Species in Lilium
Zhou Chaohong
1997, 10(6): 663-667.
Abstract:
Cytological observation on regenerated plants of Lilium sulphureum,L.sargentiae and L. sp. has discovered the occurrences of chromosomal numerical variations. The variations include ploidy and aneuploidy changes in chromosomal number. The ploidy variations found in L. sulphureum and L. sp.,within the range of 2n=3x,4x. The aneuploidy variations found in all 3 species,within the range of 2n=2x-2,2x-1,2x+1,2x+2. Furthermore,some abnormalities of mitoses have been observed.
Approaching the Genetic Variation and Selection Effect by Stem Straightness of Loblolly Pine
Lu Benshu, Jiang Jingmin, Sun Haiqing
1997, 10(6): 668-672.
Abstract:
The investigation on the stem straightness of loblolly pine on five 10 year old proven ances tests and one 6 year old half sib progeny tests plantation of seed orchard revealed that,there were marked difference among provenances in each test with GCV =4.64%~15.25% and H2=0.49~0.83,but the variations among families were not significant.The relationship of straightness with most of the growth traits were not close,namely it was independantly inherited.When stem straightness was used in multi trait selection for building lumber or pulp wood,the straight,high yielding and high wood quality provenances or families could be selected.