日本落叶松种子园母树生长及种实性状评价
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摘要
为提高日本落叶松种子园的产量和品质,以建始县长岭岗林场1.5代无性系种子园为研究对象,通过对母树生长状况、球果产量和种子品质的调查,评价不同无性系生长和结实性状的差异及性状间的相关性,筛选生长和结实兼优的无性系。结果表明:不同无性系之间结实量、球果单果干重和种子千粒重存在极显著差异,球果长宽及苗圃播种发芽率存在显著差异,胸径及其他指标不存在显著差异;相关分析表明胸径与结实量、结实量与发芽率无显著相关,说明种子园优良无性系的选择要兼顾胸径、结实量和发芽率3个指标;选出优良无性系11个,结实量提高14.29%,种子发芽率提高32.96%,可为新一轮的日本落叶松生产群体的构建提供材料。
To improve the yield and quality of seed orchards,the seed trees in a 1. 5-generation clonal seed orchard of Larix kaempferi were studied in Jianshi County Changlinggang National Forest Farm. The growth,seed yield,and seed quality of seed trees were investigated to evaluate the differences in and relationship of growth and seed characters among clones and select superior clones for both growth and seed characters. The results showed that there were extremely significant differences in seed yield,dry weight of a single cone,and thousand seed weight,and significant differences with length and width of cones and seed germination rate for different clones. The difference in DBH and other indicators were not significant. Correlations between DBH and seed yield,seed yield and seed germination rate were not significant. These results showed that all three indicators mentioned should be given consideration in selection of superior clones. Eleven superior clones were selected with a seed yield and seed germination rate14.29% and 32.96% higher,respectively,to provide material to build a new production group.
To improve the yield and quality of seed orchards,the seed trees in a 1. 5-generation clonal seed orchard of Larix kaempferi were studied in Jianshi County Changlinggang National Forest Farm. The growth,seed yield,and seed quality of seed trees were investigated to evaluate the differences in and relationship of growth and seed characters among clones and select superior clones for both growth and seed characters. The results showed that there were extremely significant differences in seed yield,dry weight of a single cone,and thousand seed weight,and significant differences with length and width of cones and seed germination rate for different clones. The difference in DBH and other indicators were not significant. Correlations between DBH and seed yield,seed yield and seed germination rate were not significant. These results showed that all three indicators mentioned should be given consideration in selection of superior clones. Eleven superior clones were selected with a seed yield and seed germination rate14.29% and 32.96% higher,respectively,to provide material to build a new production group.
引文
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[10]袁虎威,王晓飞,杜清平,等.基于BWB的油松初级种子园混合子代优树选择与配置设计[J].北京林业大学学报,2017,39(11):28-34.
[11]王福森,李树森,李晶,等.樟子松无性系种子园矮化处理对结实及种子品质的影响[J].东北林业大学学报,2017,45(5):26-28.
[12]葛艺早,刘文飞,吴建平,等.不同施肥处理对杉木种子园种子品质的影响[J].森林与环境学报,2016,36(4):442-448.
[13]谭小梅,金国庆,张一,等.截干矮化马尾松二代无性系种子园开花结实的遗传变异[J].东北林业大学学报,2011,39(4):39-42.
[14]王昊.林木种子园研究现状与发展趋势[J].世界林业研究,2013,26(4):32-37.
[15]方乐金,施季森.杉木种子园种子产量及其主导影响因子的分析[J].植物生态学报,2003,27(2):235-239.
[2]龙应忠,吴际友,童方平,等.火炬松种子园无性系种实性状遗传与变异研究[J].南京林业大学学报(自然科学版),2004,28(6):103-106.
[3]季孔庶,樊民亮,徐立安.马尾松无性系种子园半同胞子代变异分析和家系选择[J].林业科学,2005,41(6):43-49.
[4]洪永辉,胡集瑞,林文奖,等.马尾松种子园无性系亲本多性状联合选择[J].南京林业大学学报(自然科学版),201l,35(6):23-28.
[5]张鑫鑫,夏辉,赵昕,等.长白落叶松种子园亲本生长与结实性状综合评价[J].植物研究,2017,37(6):933-940.
[6]陈苏英,马祥庆,吴鹏飞,等. 1.5代杉木种子园不同无性系生长和结实性状的评价[J].热带亚热带植物学报,2014,22(3):281-291.
[7]杨章旗.马尾松种子园优良家系生长性状选择[J].福建林学院学报,2006,26(1):45-48.
[8]YUAN H W,LI Z X,FANG P,et al. Variation and stability in female strobili production of a first-generation clonal seed orchard of Chinese pine(Pinus tabuliformis)[J]. Silvae Genetica,2014,63(1/2/3/4/5/6):41-47.
[9]袁虎威,梁胜发,符学军,等.山西油松第二代种子园亲本选择与配置设计[J].北京林业大学学报,2016,38(3):47-54.
[10]袁虎威,王晓飞,杜清平,等.基于BWB的油松初级种子园混合子代优树选择与配置设计[J].北京林业大学学报,2017,39(11):28-34.
[11]王福森,李树森,李晶,等.樟子松无性系种子园矮化处理对结实及种子品质的影响[J].东北林业大学学报,2017,45(5):26-28.
[12]葛艺早,刘文飞,吴建平,等.不同施肥处理对杉木种子园种子品质的影响[J].森林与环境学报,2016,36(4):442-448.
[13]谭小梅,金国庆,张一,等.截干矮化马尾松二代无性系种子园开花结实的遗传变异[J].东北林业大学学报,2011,39(4):39-42.
[14]王昊.林木种子园研究现状与发展趋势[J].世界林业研究,2013,26(4):32-37.
[15]方乐金,施季森.杉木种子园种子产量及其主导影响因子的分析[J].植物生态学报,2003,27(2):235-239.