| In this paper,the the seed trait,seeding growth trait,seedlings Cold Resistance of the 16 Ligustrum lucidum provenances were studied to get the following conclusions:1.Phenotypic traits,quality indicators of different Ligustrum lucidum provenances were significantly different.Grain weight,dry weight of the largest Guilin(34.85 g)smallest Chengdu(21.57 g).The highest seed germination rate source of Chengdu,reached 83.67 percent,the lowest of Nanchang,only 20.33%.In Seeding stage,quality of Chengdu provenance was the best.The height of the seedlings was the largest,the seedling height was 112.10 cm,the ground diameter was 13.90 cm.Chengdu provenance compared to other provenances more adapted to the local climatic conditions,with selective improved variety value.2.The result of research on the relationship between environmental factors and seed: seeds,seedlings of consecutive latitude,longitude and altitude geographical variation.Privet seed diameter and latitude has significant negative correlation,germination index and longitude is significantly negative correlation or weak negative correlation;Ground diameter and latitude was significantly positively related;Ground diameter and elevation of significant negative correlation.Water is also the important factors influencing the geographic variation: germination percentage,germination potential negative correlation with annual average rainfall,dry weight,diameter and average relative humidity has significant negative correlation,the longitudinal diameter and average relative humidity very significant negative correlation.Seedling height and rainfall is significant negative correlation.The longitudinal diameter and percentage of sunshine,annual average sunshine time was significantly positive correlation.3.Ground diameter and seed grain weight,dry weight had a significant negative correlation.Ground diameter have a very significant negative correlation with seed moistureground diameter was significantly negatively correlated with seed diameter.Seed germination index indicates high seedling growth: height and germination rate showed a significant positive correlation between high germination rate have a positive impact for the height.Height and germination energy also has a significant positive correlation.Seeds and seed longitudinal diameter aspect ratio for seedling growth of seedlings no significant correlation.Ground diameter and height were significantly correlated.4.Height Ground diameter exhibit the "s" type growth curve.August 19-September 4 range for height growth speed peak.Xichuan provenance daily height growth curve is bimodal,unimodal curve of other provenances.When the growth of the peak,the average daily net increase in the amount of height order: Chengdu> Hefei> Kunming> Yichang> Nanjing> Chongqing> Changsha> Wuhan> Ankang> Nanchang> Huaihua> Guilin> Hangzhou> Guiyang> Chenzhou> Xichuan.Average daily growth curve Ground diameter emerged clearly bimodal curve.Most provenances first peak in August 19-September 4.The second peak: Wuhan,Yichang,Nanchang,Chenzhou,Chengdu,Hangzhou provenance appeared in September 24-October 12;Guilin,Changsha,Hefei,Chongqing,Kunming,Guiyang,Nanjing appeared in October 12 to 11 March.Ground diameter of the first growth peak average daily growth rate: Nanchang> Chengdu> Hefei> Chongqing> Yichang> Nanjing> Guiyang> Hangzhou> Guilin> Ankang> Wuhan> Changsha> Chenzhou> Kunming> Xichuan.5.Results of Provenance Division: A: Huaihua,Wuhan,Yichang,Changsha,Nanchang,Hefei,Nanjing,well-being,Kunming,Chongqing,Chengdu is one kind of source regions;B: Guiyang,Chenzhou,Guilin is one kind of source area.6.Depending on the relative conductivity combined with Logistic equation calculate the different provenances Ligustrum lethal temperature,cold hardiness order: Huaihua> Zhengzhou> Wuhan> Xichuan> Guiyang> Ankang> Nanjing> Changsha> Chenzhou> Nanchang> Guilin> Hefei> Yichang > Hangzhou> Chengdu> Kunming> Chongqing.7.Multi index calculated by the membership function values of the various function value source index,calculated from different provenances membership values,a variety of sources hardiness ranking: Wuhan> Guilin> Ankang> Kunming> Changsha> Nanjing> Hefei> Chenzhou> Guiyang> Huaihua> Yichang> Chongqing> Xichuan> Nanchang> Hangzhou> Chengdu.The results show Wuhan,Guilin,Ankang strongest cold,Chengdu,Hangzhou,function values quite different than other kinds of sources,cold resistance weakest.Two methods of cold drawn strength ranking vary widely,but at different levels illustrates various sources of cold resistance. |
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