Effect of seedling stock on the early stand development and physiology of improved loblolly pine (Pinus taeda L.) seedlings

被引:1
作者
Sharma, Shakuntala [1 ]
Adams, Joshua P. [2 ]
Schuler, Jamie L. [3 ]
Ficklin, Robert L. [4 ]
Bragg, Don C. [5 ]
机构
[1] Univ Georgia, Warnell Sch Forestry & Nat Resources, Athens, GA 30602 USA
[2] Louisiana Tech Univ, Sch Forest Resources, Ruston, LA 71270 USA
[3] West Virginia Univ, Morgantown, WV 26506 USA
[4] Univ Arkansas, Arkansas Forest Resources Ctr, Monticello, AR USA
[5] Forest Serv, USDA, Southern Res Stn, Monticello, AR USA
关键词
Loblolly Pine; Genotype; Leaf Water Potential; Coefficient of Variation; SUSTAINED PRODUCTIVITY; GROWTH;
D O I
10.3832/ifor1725-009
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
This study assessed the effects of spacing and genotype on the growth and physiology of improved loblolly pine (Pinus taeda L.) seedlings from three distinct genotypes planted in Drew County, Arkansas (USA). Genotype had a significant effect on survival and height. Clone CF Var 1 showed greater height and survival compared to other seedlings. Genotype had significant effects on uniformity in height both years and ground line diameter (GLD) first year. However, genotype had no significant effects on leaf water potential and coefficient variation of leaf water potential. These growth and physiology should be further studied to assess potential genetic differences among seedlings and to determine if they can be identified early for improved growth at later ages.
引用
收藏
页码:690 / 695
页数:6
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