丝栗栲母树结实量调节技术研究
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摘要
丝栗栲结实量大小年现象突出,母株上中下层轮盘枝结实量有明显差异。采取施肥,适度疏花,对母树林进行适度疏伐、改善母树中层轮盘枝采光条件等技术措施,能有效调节光照、肥力、开花数量,保持种子产量稳定性,提高母树的结实量和改善种子品质。本文的试验技术数据可为丝栗栲母树林营建及管理提供可靠技术参考。
The biennial fruiting of Castanopsis fargesii is quite usual with significant differences in fruit yields among the upper, middle and lower whorled branches of the seed trees. Technical measures could effectively adjust light, soil fertility and number of flowers to keep the seed yield stable and improve fruiting and seed quality of the seed trees which include fertilizing, moderately thinning of flowers and thinning tending of the seed trees to improve light conditions of the middle whorled branches. The test technical data could provide reliable technical reference for establishing and managing Castanopsis fargesii seed tree plantations.
The biennial fruiting of Castanopsis fargesii is quite usual with significant differences in fruit yields among the upper, middle and lower whorled branches of the seed trees. Technical measures could effectively adjust light, soil fertility and number of flowers to keep the seed yield stable and improve fruiting and seed quality of the seed trees which include fertilizing, moderately thinning of flowers and thinning tending of the seed trees to improve light conditions of the middle whorled branches. The test technical data could provide reliable technical reference for establishing and managing Castanopsis fargesii seed tree plantations.
引文
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[2]林捷,叶功富,何建源,等.武夷山丝栗栲天然林群落的物种多样性研究[J].江西农业大学学报,2005,27(3):340-344.
[3]黄清麟,董乃钧,李元红.福建中亚热带天然阔叶林的主要类型与特征[J].山地学报,1999,17(4):368-374.
[4]潘尧燕.低产丝栗栲次生林林分特征研究[J].林业勘察设计,2010(1):74-76.
[5]黄清麟,李元红.闽北短伐期阔叶林研究[J].林业科学,2000,36(1):97-102.
[6]吴庆锥.杉木林下套种丝栗栲复层经营生长效应[J].林业勘察设计, 2018(4):9-12.
[7]汪庆瑜.红栲优树选择[J].安徽林业, 2008(3):48.
[8]王玉奇,王丽娟,徐润,等.不同种源丝栗栲种子性状变异[J].广西林业科学, 2019,48(1):133-136.
[9]洪伟.试验设计与统计分析[M].北京:中国林业出版社,2009.
[10]陈波,达良俊,宋永昌.常绿阔叶树栲树开花物候动态及花的空间配置[J].植物生态学报, 2008.27(2):249-255.