摘要：矮珍珠是被子植物门双子叶纲玄参科的植物。矮珍珠虽属有茎水草，但其茎部却不是直立的，只能爬行在底部生长，如果种的好就会长得十分浓密犹如一片小草原，是装饰性非常强的前景草，深受水草爱好者的喜爱，市场非常广阔。但是矮珍珠栽培难度极大不易种植，并且生长蔓延缓慢。本实验首先在几种基质中分株繁殖研究不同基质在半水培条件下对矮珍珠生长速率的影响，再选出最适其生长生产的基质进行栽培，研究不同光照对矮珍珠生长速率的影响。结果表明，兰花专用栽培基质从矮珍珠生长速率以及经济效益而言是最适合矮珍珠产业化繁殖的，且在LED红蓝光(2200lux)下矮珍珠生长的速率最快。58132

毕业论文关键词：基质；光照；矮珍珠；半水培；生长速率

The impact of different substrates and light on the growth efficiency of Glossostigma elatinoides in Half a hydroponic conditions

Abstract: Glossostigma elatinoides is Angiospermae Dicotyledons Scrophulariaceae in plant. Although Glossostigma elatinoides is a stem grasses, it’s stem can not stand upright. But grows creep on the bottom. If it growed well, it will grow very thick like a little prairie, and it is a strong decorative grass. It is much fond by Aquatic plants lovers, so it’s market is very expanse. But Glossostigma elatinoides is so hard to be planted and grow slowly. The first experiment on Glossostigma elatinoides by plant pision propagation in some different substrates and studied the impact of different substrates on the growth efficiency of Glossostigma elatinoides in Half a hydroponic conditions, and then elect the most fitting substrate. To plant Glossostigma elatinoides in the chose substrate and studied the the impact of light on the growth efficiency of Glossostigma elatinoides in Half a hydroponic conditions. The results showed that, the special substrate for Orchid is the best substrate for Glossostigma elatinoides, it is according to it’s grow rate and the economic benefit. And the red LED light of 220 lux is the most fitting light for Glossostigma elatinoides.

Keywords:  substrate , light , Glossostigma elatinoides  , Half a hydroponic conditions , grow rate 

1 绪论 1

1.1观赏水草的分类 1

1.2 观赏性水草的现状与前景 1

1.3观赏水草的几种栽培方式 2

1.3.1沉水栽培 2

1.3.2 水上叶栽培 3

1.3.3半水条件栽培 3

1.4不同基质对植物生长影响的研究进展 3

1.5光照强度对植物生长的影响研究进展 4

2 材料与方法 5

2.1 不同基质对半水培矮珍珠生长速率的影响 5

2.1.1研究材料 5

2.1.2研究方法 6

2.1.3 基质理化性质的测定 6

2.1.4 栽培及实验方法 7

2.2不同光照对矮珍珠半水培条件下生长速率的影响 7

2.2.1实验材料 7

2.2.2实验方法 7

3 结果与分析 8

3.1 不同基质理化性质比较分析