蓝桉及直干桉超级苗初步选择研究
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摘要
分别以蓝桉、直干桉5月生和10月生实生苗为参试苗木,测定其苗高和地径生长指标,分析同树种同苗龄苗木个体间的生长差异,采用标准差法确定超级苗初选标准,分析超级苗的入选率及增量效果。结果表明:试验苗木具备进行超级苗选择的生长量基础,同树种同龄级苗木的苗高生长变异系数均大于地径生长变异系数,且同树种同龄级苗木苗高与地径均存在极显著正相关。试验苗木初选标准皆为苗木平均苗高加上2倍标准差。5月生蓝桉、10月生直干桉为其各自合适的超级苗选择年龄,且超级苗在生长量上具有较大的增量优势,选择效果明显。试验苗木高生长量指标在5月、10月生苗龄间皆存在较大的正相关关系,蓝桉、直干桉早期选择结果具有有效性和可行性。
The seedling height and ground diameter of 5 months and 10 months seedlings of Eucalyptus globules and E. maideni were determined,respectively. The growth difference of the same age seedlings was analyzed in the same species. The selection criteria for super seedlings of E. globules and E. maiden were severally researched through standard deviation method. The results show that it is equipped with the basis for the growth of super seedling selection of sample seedlings,furthermore,the variable coefficients of seedling height are greater than that of ground diameter at the same age in the same species seedlings and there are significant positive correlation between seedling height and ground diameter at the same age in the same species seedlings. The super seedling' s selection criteria of sample seedlings is the average seedling height plus 2 times standard deviation. The appropriate seedling age of super seedling's selection about E. globules is 5 months and that of E. maiden is10 months. The super seedling's selection effect is very obvious because these selected super seedlings have a large incremental advantage.There is a significant positive correlation about height increment between the 5 months' and 10 months' seedling age of sample seedlings,so early selection of seedlings was effective and feasible about E. globules and E. maiden.
The seedling height and ground diameter of 5 months and 10 months seedlings of Eucalyptus globules and E. maideni were determined,respectively. The growth difference of the same age seedlings was analyzed in the same species. The selection criteria for super seedlings of E. globules and E. maiden were severally researched through standard deviation method. The results show that it is equipped with the basis for the growth of super seedling selection of sample seedlings,furthermore,the variable coefficients of seedling height are greater than that of ground diameter at the same age in the same species seedlings and there are significant positive correlation between seedling height and ground diameter at the same age in the same species seedlings. The super seedling' s selection criteria of sample seedlings is the average seedling height plus 2 times standard deviation. The appropriate seedling age of super seedling's selection about E. globules is 5 months and that of E. maiden is10 months. The super seedling's selection effect is very obvious because these selected super seedlings have a large incremental advantage.There is a significant positive correlation about height increment between the 5 months' and 10 months' seedling age of sample seedlings,so early selection of seedlings was effective and feasible about E. globules and E. maiden.
引文
[1]陈余美,林彬远.直干桉引种及培育技术研究[J].四川林业科技,2006,27(3):10-14.
[2]张荣贵,李思广,蒋云东.云南的桉树引种及对其发展状况的剖析[J].西部林业科学,2007,36(3):98-102.
[3]陈琳.蓝桉的研究进展[J].中国药业,2009,18(4):61-62.
[4]孔璐璐,赵紫剑,何正斌,等.含水率与温度对巨尾桉蒸汽效果的影响及机理研究[J].西南林业大学学报,2018,38(2):158-164.
[5]曾德贤,吴子欢,朱仁刚.云南省林业产业发展的良种问题及对策[J].林业调查规划,2010,35(5):57-61.
[6]黄海平,郑祥.浅谈弥勒县直干桉栽培现状及发展对策[J].林业建设,2010:22-24.
[7]张永桥,王自全,萧增新.陆良县桉树经营方略初探[J].绿色科技,2014(9):56-57.
[8]庞龙生.蓝桉栽培技术[J].云南林业,1987(4):15.
[9]马常耕.世界加速林木育种轮回研究的现状[J].世界林业研究,1996(6):15-23.
[10]郁万文,蔡金峰,苏明洲.银杏超级苗选择基础和方法探讨[J].福建林业科技,2016,43(2):212-216.
[11]孙静,杨志刚,贾晨,等.通江县鹅掌楸超级苗选育初步研究[J].四川林业科技,2017,38(3):69-71.
[12]王好运,丁贵杰,谢维斌,等.马尾松超级苗生长特性及光合色素含量研究[J].西南林业大学学报,2017,37(5):42-47.
[13]宋墩福,邱全生,翟学昌,等.木荷超级苗选择与丰产栽培技术研究[J].南方林业科学,2016,44(1):24-26.
[14]吕学辉,魏巍,陈诗,等.云南松优良家系超级苗选择研究[J].云南大学学报(自然科学版),2012,34(1):113-119.
[15]刘纯鑫,谭碧霞.火炬松超级苗造林试验初报[J].广东林业科技,1998,14(1):10-14.
[16]马祥庆,范繁荣,黄长辉,等.提高杉木超级苗造林成活率的初步研究[J].福建林业科技,1993,20(2):74-76.
[17]黄锡山.湿地松超级苗造林对比试验[J].湖南林业科技,1998,25(4):19-20.
[18]刘代亿,李根前,李莲芳,等.云南松超级苗选择初探[J].福建林业科技,2010,37(3):102-115.
[2]张荣贵,李思广,蒋云东.云南的桉树引种及对其发展状况的剖析[J].西部林业科学,2007,36(3):98-102.
[3]陈琳.蓝桉的研究进展[J].中国药业,2009,18(4):61-62.
[4]孔璐璐,赵紫剑,何正斌,等.含水率与温度对巨尾桉蒸汽效果的影响及机理研究[J].西南林业大学学报,2018,38(2):158-164.
[5]曾德贤,吴子欢,朱仁刚.云南省林业产业发展的良种问题及对策[J].林业调查规划,2010,35(5):57-61.
[6]黄海平,郑祥.浅谈弥勒县直干桉栽培现状及发展对策[J].林业建设,2010:22-24.
[7]张永桥,王自全,萧增新.陆良县桉树经营方略初探[J].绿色科技,2014(9):56-57.
[8]庞龙生.蓝桉栽培技术[J].云南林业,1987(4):15.
[9]马常耕.世界加速林木育种轮回研究的现状[J].世界林业研究,1996(6):15-23.
[10]郁万文,蔡金峰,苏明洲.银杏超级苗选择基础和方法探讨[J].福建林业科技,2016,43(2):212-216.
[11]孙静,杨志刚,贾晨,等.通江县鹅掌楸超级苗选育初步研究[J].四川林业科技,2017,38(3):69-71.
[12]王好运,丁贵杰,谢维斌,等.马尾松超级苗生长特性及光合色素含量研究[J].西南林业大学学报,2017,37(5):42-47.
[13]宋墩福,邱全生,翟学昌,等.木荷超级苗选择与丰产栽培技术研究[J].南方林业科学,2016,44(1):24-26.
[14]吕学辉,魏巍,陈诗,等.云南松优良家系超级苗选择研究[J].云南大学学报(自然科学版),2012,34(1):113-119.
[15]刘纯鑫,谭碧霞.火炬松超级苗造林试验初报[J].广东林业科技,1998,14(1):10-14.
[16]马祥庆,范繁荣,黄长辉,等.提高杉木超级苗造林成活率的初步研究[J].福建林业科技,1993,20(2):74-76.
[17]黄锡山.湿地松超级苗造林对比试验[J].湖南林业科技,1998,25(4):19-20.
[18]刘代亿,李根前,李莲芳,等.云南松超级苗选择初探[J].福建林业科技,2010,37(3):102-115.