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首页> 外文期刊>African Journal of Biotechnology >Effects of seed pretreatment and seed source on germination of five Acacia spp.
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Effects of seed pretreatment and seed source on germination of five Acacia spp.

机译：种子预处理和种子来源对5个金合欢种子萌发的影响。

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摘要

The effects of seed pre-sowing treatment and geographic source of seeds on three germination parameters of five?Acacia?species (GP = germination percent; GMT = germination mean time (days) and GI = germination index) were studied. Pre-sowing treatment included immersion in concentrated sulphuric acid for 5, 10 and 15 min; immersion in hot water for 2, 4 and 6 min; abrasion of the seed coat and control. Seeds were collected from three geographical regions in the Kingdom of Saudi Arabia (Aseer and Al Baha regions in South-Western and Al Madinah region in the West). Experiments were carried out on Petri dishes containing moistened filter papers and incubated in a growth chamber. Seed pretreatment significantly (P < 0.0001) affected GP, GMT and GI in all tree seed species studied. Generally, scarification (acid and mechanical abrasion) resulted in the best GP, GMT and GI. Hot water also gave good germination for most tree seed species. Germination behavior of?A. ehrenbergiana?seeds was different compared to other species. More also, increasing the time of immersion in acid decreased the GP in seeds collected from both Aseer and Al Baha regions, while in contrast,?A. origena?germinated better with increasing time of immersion in acid and hot water. Geographic source of seeds significantly affected most germination parameters, although it was comparatively inconsistent compared to seed treatment. Highly significant interactions (P < 0.0001) were recorded between seed pretreatment and seed source.
机译：研究了种子播前处理和种子的地理来源对五种相思树种的三个发芽参数的影响（GP =发芽率; GMT =发芽平均时间（天）和GI =发芽指数）。播前处理包括在浓硫酸中浸泡5、10和15分钟。浸入热水中2、4和6分钟;种皮的磨损和控制。种子是从沙特阿拉伯王国的三个地理区域（西南的Aseer和Al Baha地区以及西部的Al Madinah地区）收集的。在装有润湿滤纸的培养皿中进行实验，并在生长室中孵育。种子预处理在所有研究的树种中均显着（P <0.0001）影响GP，GMT和GI。通常，划痕（酸和机械磨损）会产生最佳的GP，GMT和GI。热水还使大多数树木种子发芽良好。发芽行为ehrenbergiana的种子与其他物种相比有所不同。此外，增加在酸中的浸泡时间会降低从Aseer和Al Baha地区收集的种子的GP，而与此相反，ΔA。浸泡在酸和热水中的时间越长，origena的发芽越好。种子的地理来源显着影响了大多数发芽参数，尽管与种子处理相比并不一致。在种子预处理和种子来源之间记录到高度显着的相互作用（P <0.0001）。

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