Germination success, survival and seedling vigour of Quercus suber acorns in relation to insect damage

被引：86

作者：

Branco, M ^{[1
]}

Branco, C ^{[1
]}

Merouani, H ^{[1
]}

Almeida, MH ^{[1
]}

机构：

[1] Inst Super Agron, Ctr Estudos Florestais, P-1399 Lisbon, Portugal

来源：

FOREST ECOLOGY AND MANAGEMENT | 2002年 / 166卷 / 1-3期

关键词：

insect-attack; acorn germination; seedling production;

D O I：

10.1016/S0378-1127(01)00669-7

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

This study assesses the effects of damage caused by Curculio elephas Gyll. (Coleoptera: Curculionidae) and Cydia splendana Hb. (Lepidoptera: Tortricidae) on mature acorns of cork oak trees, Quercus suber L., in Portugal. The average number of insect-attacked acorns varied between 68, 44 and 17%, in three sites, respectively. Acorns assorted into increasing damage classes had a decreasing acorn dry weight and a faster germination rate. The percentage of germination was very high (>90%) in all classes. Seedlings resulting from more intensely damaged acorns exhibited a slower growth rate and lower dry mass production than seedlings resulting from low damaged acorns. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：159 / 164

页数：6

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