思茅松良种扦插苗造林初期生长效果
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摘要
用已认定的思茅松良种(景谷思茅松无性系种子园种子)建立采穗圃生产的扦插苗,开展不同密度(2 m×2 m、2.5 m×3 m、3 m×4 m)及不同种类苗木(思茅松良种实生苗、思茅松良种扦插苗、卡西亚松扦插苗、湿加松扦插苗、湿加松实生苗)的造林对比试验。对造林后第4年的测量数据进行比较,在不同种类苗木试验中,思茅松良种扦插苗与其它种类苗木的树高在0.01水平上存在极显著差异,比卡西亚松扦插苗、湿加松扦插苗、湿加松实生苗、思茅松良种实生苗树高分别高出39.5%、24.7%、46.5%、30.1%;思茅松良种扦插苗与湿加松扦插苗的胸径在0.05水平上存在显著差异,比卡西亚松扦插苗、湿加松扦插苗、湿加松实生苗、思茅松良种实生苗高出8%、-15.3%、6.4%、-9.1%;在用思茅松良种扦插苗定植的密度试验中,树高差异不显著,密度2.5 m×3 m和2 m×2 m、3 m×4 m的胸径在0.05水平上存在显著差异,密度2.5m×3 m比密度2 m×2 m、3 m×4 m的胸径分别高出10.5%、29.2%,3个密度处理的平均树高和胸径可达到327 cm和56mm。由此可见,思茅松良种扦插苗造林效果显著高于其它苗木,造林密度以2.5 m×3 m为好。
We created a demonstration forest of Pinus kesiya var.langbianensis with cuttings of improved variety,and did the contrast test of the early growth with different planting density(2 m×2 m,2.5 m×3 m,3 m×4 m) and different tree species(the seedings and cuttings of Pinus kesiya var.langbianensis,the cuttings of P.kesiya,the seedings and cuttings of Pinus elliottii×P.caribaea).We compared the measurement data for the fourth year after afforestation.In the experiment of different tree species,there was a significant difference in the level of 0.01 between the tree height of the cuttings of Pinus kesiya var.langbianensis and others.The average tree height of cuttings of Pinus kesiya var.langbianensis were more 39.5% 、24.7% 、46.5% 、30.1% than the cuttings of P.kesiya,the cuttings of Pinus elliottii×P.caribaea,the cuttings of Pinus elliottii×P.caribaea,the seedings of Pinus kesiya var.langbianensis.There was a significant difference in the level of 0.05 between the ground diameter of the cuttings of Pinus kesiya var.langbianensis and the cuttings of Pinus elliottii×P.caribaea.The average breast diameter of cuttings of Pinus kesiya var.langbianensis were more 8% 、-15.3% 、6.4% 、-9.1% than the cuttings of P.kesiya,the cuttings of Pinus elliottii×P.caribaea,the cuttings of Pinus elliottii×P.caribaea,the seedings of Pinus kesiya var.langbianensis.In the experiment of different planting density,there was not a significant difference at the tree height.There was a significant difference in the level of 0.05 between the ground diameter of the 3 m×4 m and others.The average ground diameter of 2.5 m×3 m were more 8% 、-15.3% than others.The average tree height and breast diameter of three different density were 327 cm and 56 mm.Thus,it could be seen that the afforestation effect of the cuttings of Pinus kesiya var.langbianensis was significantly higher than others,and the afforestation density of 2.5 m×3 m was the best.
We created a demonstration forest of Pinus kesiya var.langbianensis with cuttings of improved variety,and did the contrast test of the early growth with different planting density(2 m×2 m,2.5 m×3 m,3 m×4 m) and different tree species(the seedings and cuttings of Pinus kesiya var.langbianensis,the cuttings of P.kesiya,the seedings and cuttings of Pinus elliottii×P.caribaea).We compared the measurement data for the fourth year after afforestation.In the experiment of different tree species,there was a significant difference in the level of 0.01 between the tree height of the cuttings of Pinus kesiya var.langbianensis and others.The average tree height of cuttings of Pinus kesiya var.langbianensis were more 39.5% 、24.7% 、46.5% 、30.1% than the cuttings of P.kesiya,the cuttings of Pinus elliottii×P.caribaea,the cuttings of Pinus elliottii×P.caribaea,the seedings of Pinus kesiya var.langbianensis.There was a significant difference in the level of 0.05 between the ground diameter of the cuttings of Pinus kesiya var.langbianensis and the cuttings of Pinus elliottii×P.caribaea.The average breast diameter of cuttings of Pinus kesiya var.langbianensis were more 8% 、-15.3% 、6.4% 、-9.1% than the cuttings of P.kesiya,the cuttings of Pinus elliottii×P.caribaea,the cuttings of Pinus elliottii×P.caribaea,the seedings of Pinus kesiya var.langbianensis.In the experiment of different planting density,there was not a significant difference at the tree height.There was a significant difference in the level of 0.05 between the ground diameter of the 3 m×4 m and others.The average ground diameter of 2.5 m×3 m were more 8% 、-15.3% than others.The average tree height and breast diameter of three different density were 327 cm and 56 mm.Thus,it could be seen that the afforestation effect of the cuttings of Pinus kesiya var.langbianensis was significantly higher than others,and the afforestation density of 2.5 m×3 m was the best.
引文
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[7]唐红燕,许玉兰,唐海英,等.思茅松嫩枝扦插育苗技术研究[J].西南林学院学报2011,31(2):24-28.
[8]邓桂香,曾德贤,施彬,等.思茅松采穗圃营建技术研究[J].林业实用技术,2014(9):73-76.
[9]李春喜,王志和,王文林.生物统计学[M].北京:科学出版社,2002.
[2]唐红燕,刘庆红,戴林利.不同外源激素对思茅松嫩枝插穗生根率的影响研究[J].思茅师范高等专科学校学报,2007,23(3):7-9.
[3]雷玮,邓桂香,李江,等.思茅松扦插试验[J].福建林业科技2007,34(1):82-85.
[4]邓桂香,李江,雷玮,等.不同处理对思茅松采穗母株萌条数量及扦插成活率的影响[J].西部林业科学,2010(4):74-78.
[5]孟梦,刘云彩,姜远标,等.思茅松采穗圃营建与管理技术[J].林业实用技术,2010(4):27-28.
[6]唐红燕,许玉兰,唐海英,等.思茅松嫩枝扦插穗条培养研究[J].林业调查规划,2010,35(4):142-144.
[7]唐红燕,许玉兰,唐海英,等.思茅松嫩枝扦插育苗技术研究[J].西南林学院学报2011,31(2):24-28.
[8]邓桂香,曾德贤,施彬,等.思茅松采穗圃营建技术研究[J].林业实用技术,2014(9):73-76.
[9]李春喜,王志和,王文林.生物统计学[M].北京:科学出版社,2002.