Observations from seedbank studies on Solanum mauritianum Scop. (bugweed) in a pine plantation, South Africa

被引：7

作者：

Goodall, J. M. ^{[1
]}

Denny, R. P. ^{[1
]}

Campbell, P. L. ^{[1
,2
]}

机构：

[1] ARC Plant Protect Res Inst, Private Bag X6006, ZA-3245 Hilton, South Africa

[2] South African Sugarcane Res Inst, Private Bag X02, ZA-4300 Mt Edgecombe, South Africa

来源：

SOUTH AFRICAN JOURNAL OF BOTANY | 2017年 / 112卷

关键词：

Bugweed; Seed dormancy; GA(3); Seedling emergence depth; Seedling survival; GERMINATION; SEEDS;

D O I：

10.1016/j.sajb.2017.05.012

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

This study investigated the bugweed (Solanum mauritianum Scop.) seedbank in a mature pine plantation in the midlands of Kwa-Zulu/Natal. Bugweed seeds were found up to 10 cm below the soil but > 90% were not viable. Viable seeds were not found on the soil surface. Seed viability increased with soil depth. Seedlings emerged naturally from soil depths up to 4 cm below the pine litter in a plantation, but under controlled conditions in a greenhouse, seedlings emerged from 8 cm underground. Seasonal seedling survival in timber plantations was low, being greatest where mature bugweed plants were scattered. (C) 2017 SAAB. Published by Elsevier B.V. All rights reserved.

引用

页码：11 / 14

页数：4

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