杉木不同类型不同世代良种早期评价
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摘要
为筛选适合湘东低山丘陵区种植的杉木良种,以6种不同类型不同世代的杉木良种为试验材料(分别为福建洋口林场杉木3代种子园混系实生苗、福建优良杉木无性系洋020组培苗、湖南杉木2代种子园混系实生苗、湖南杉木1.5代种子园混系实生苗、湖南杉木1代种子园混系实生苗、湖南普通杉木人工林林分种子实生苗)营造试验林。结果表明:在6年生、8年生时,不同类型不同世代良种间平均树高、胸径和材积存在显著或极显著差异。在8年生时,湖南2代杉木良种材积最大,其均值为0.088 2 m~3,比对照大120.0%;其次是福建3代杉木良种和福建无性系,材积均值分别为0.085 8 m~3和0.085 4 m~3;福建无性系变异系数最小,为26.57%。杉木高世代良种具有明显的增产效果,选择本地选育的杉木良种造林能取得较好的增产效益。
In order to select the suitable improved variety of Chinese fir for planting in the low mountain and hilly areas of eastern Hunan Province, this study built test plantation was including six different types and different generation varieties of Chinese fir(the 3 rd generation of mixed generation seedling of seed orchard of Yangkou Forest Farm of Fujian Province,the improved clones of tissue culture seedling in Fujian Province(yang020),the 2 nd generation mixed generation seedling of seed orchard of Chinese fir of Hunan Province,the 1. 5 generation mixed generation seedling of seed orchard of Chinese fir of Hunan Province,the 1 st generation mixed generation seedling of seed orchard of Chinese fir of Hunan Province,the common seedling of plantation of Chinese fir of Hunan Province). The results showed that: In the six-year-old and eight-year-old seedling period,there were significant differences between the average tree height, DBH and volume of different types and different generations of Chinese fir varieties. In the eight-year-old seedling period,the volume of 2 nd generation seedling of seed orchard of Chinese fir of Hunan Province was the largest,the average value of volume was 0. 088 2 m~3,higher than the CK by 120. 0 percent. The volume 3 rd generation of seedling of seed orchard of Yangkou Forest Farm of Fujian Province and the improved clones of tissue culture seedling(yang020) in Fujian Province was 0. 085 8 m~3 and 0. 0854 m~3,respectively. The coefficient of variation of the improved clones of tissue culture seedling in Fujian Province was thelowest,which was 26. 57%. The high generation improved varieties has obvious effect of increasing yield, the selection of local Chinese fir improved variety can obtain better productivity effect.
In order to select the suitable improved variety of Chinese fir for planting in the low mountain and hilly areas of eastern Hunan Province, this study built test plantation was including six different types and different generation varieties of Chinese fir(the 3 rd generation of mixed generation seedling of seed orchard of Yangkou Forest Farm of Fujian Province,the improved clones of tissue culture seedling in Fujian Province(yang020),the 2 nd generation mixed generation seedling of seed orchard of Chinese fir of Hunan Province,the 1. 5 generation mixed generation seedling of seed orchard of Chinese fir of Hunan Province,the 1 st generation mixed generation seedling of seed orchard of Chinese fir of Hunan Province,the common seedling of plantation of Chinese fir of Hunan Province). The results showed that: In the six-year-old and eight-year-old seedling period,there were significant differences between the average tree height, DBH and volume of different types and different generations of Chinese fir varieties. In the eight-year-old seedling period,the volume of 2 nd generation seedling of seed orchard of Chinese fir of Hunan Province was the largest,the average value of volume was 0. 088 2 m~3,higher than the CK by 120. 0 percent. The volume 3 rd generation of seedling of seed orchard of Yangkou Forest Farm of Fujian Province and the improved clones of tissue culture seedling(yang020) in Fujian Province was 0. 085 8 m~3 and 0. 0854 m~3,respectively. The coefficient of variation of the improved clones of tissue culture seedling in Fujian Province was thelowest,which was 26. 57%. The high generation improved varieties has obvious effect of increasing yield, the selection of local Chinese fir improved variety can obtain better productivity effect.
引文
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[6]张勰,徐清乾,许忠坤,等.杉木第三代种子园分步式营建技术研究[J].湖南林业科技,2017,44(5):100-104.
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[12]徐清乾,许忠坤,张勰,等.杉木第三代优树选择技术研究[J].湖北林业科技,2010(5):8-13.
[13]徐清乾,许忠坤,程政红,等.第二代杉木种子园建立技术研究[J].湖南林业科技,2002,25(4):16-19.
[14]许忠坤,徐清乾.湖南杉木育种策略[J].湖南林业科技,2002,25(4):45-47.
[15]张勰,徐清乾,顾扬传,等.杉木第2代种子园自由授粉子代测定与亲本结实性状联合选择[J].浙江林业科技,2017,37(4):1-5.
[16]张勰,许忠坤,徐清乾,等.杉木容器苗嫁接技术研究[J].湖南林业科技,2013,40(5):8-12.
[17]孙鸿有,郑勇平,付顺华,等.杉木不同世代、类型种子园种子品质改良效果的研究[J].南京林业大学学报:自然科学版,2003,27(2):40-44.
[2]郑仁华.杉木种子园自由授粉子代遗传变异及优良遗传型选择[J].南京林业大学学报:自然科学版,2006,30(1):8-12.
[3]方乐金,施季森.杉木种子园无性系结实稳定性的遗传变异[J].南京林业大学学报:自然科学版,2004,28(1):17-20.
[4]何贵平,陈益泰,张国武.杉木主要生长、材质性状遗传分析及家系选择[J].林业科学研究,2002,15(5):559
[5]欧阳磊,陈金慧,郑仁华,等.杉木育种群体SSR分子标记遗传多样性分析[J].南京林业大学学报:自然科学版,2014,38(1):21-26.
[6]张勰,徐清乾,许忠坤,等.杉木第三代种子园分步式营建技术研究[J].湖南林业科技,2017,44(5):100-104.
[7]胡德活,阮梓材.杉木种子园无性系结实遗传差异及其选择评价[J].广东林业科技,1995,11(3):41-45.
[8]曹汉洋.杉木第2代种子园半同胞子代测定及早期选择[J].南京林业大学学报:自然科学版,2011,(01):19-23.
[9]郑仁华,施季森,肖晖,等.杉木第3代种质资源自由授粉子代生长性状遗传变异及早期选择[J].南京林业大学学报:自然科学版,2014,38(6):38-42.
[10]徐清乾,许忠坤,程政红.杉木第二代种子园建立技术研究[J].湖南林业科技,2002,29(4):16-19.
[11]徐清乾,许忠坤.杉木杂交组配与两系种子园建立技术研究[J].湖南林业科技,2004,31(6):18-20.
[12]徐清乾,许忠坤,张勰,等.杉木第三代优树选择技术研究[J].湖北林业科技,2010(5):8-13.
[13]徐清乾,许忠坤,程政红,等.第二代杉木种子园建立技术研究[J].湖南林业科技,2002,25(4):16-19.
[14]许忠坤,徐清乾.湖南杉木育种策略[J].湖南林业科技,2002,25(4):45-47.
[15]张勰,徐清乾,顾扬传,等.杉木第2代种子园自由授粉子代测定与亲本结实性状联合选择[J].浙江林业科技,2017,37(4):1-5.
[16]张勰,许忠坤,徐清乾,等.杉木容器苗嫁接技术研究[J].湖南林业科技,2013,40(5):8-12.
[17]孙鸿有,郑勇平,付顺华,等.杉木不同世代、类型种子园种子品质改良效果的研究[J].南京林业大学学报:自然科学版,2003,27(2):40-44.