Study On Allelopathic Effect Of Allium Ascalonicuml On Tomato Seedling

The allelopathy refers to chemical ecology phenomenon that a kind of plant or microbial(CLT) release certain kinds of chemicals and affect the growth and development of themselves and other organisms,including plants,animals and microbes(receptor).Although there are much bad influence of allelopathy,its rational utilization is helpful.Therefore,the allelopathy instability is very worth studying.The allelopathy is widely applied in agricultural production.The impact of allelopathy is considered whether in the single crop planting,or in intercropping and rotation, cover,buried,planting.It is important to plan the way of crop cultivation reasonably and makes use of its beneficial aspects while avoid its bad Influences specially when agricultural intensification and multiple crop index increase because of development of economy and technology.Bulb crops is not only used in usual life,but also shows a variety of medicinal efficacy So it has a long history of medicinal application.In recent years,many researches have been done about the application of the bulb crops in livestock and poultry and aquatic breeding animals and plants diseases and pests prevention.But there is few report about the effect of bulb crops to green plants, especially to the growth of vegetables.Taking the green vegetables Allium ascalonicum L.as research object,this paper discusses on tomato seed germination,green seedling growth in order to revealed the influence gradually and allocate onion and tomato reasonably.The results showed that:1.The study on the influences of four leaching solution from Allium ascalonicum L.(ground substance,root part of fresh material,the dry matter,root part of dry matter) to tomato seed germination and seedling growth showed that:the inhibitory effects of leaching solution on tomato seed germination and seedling growth was enhanced with the increase of the leaching solution, among which the inhibitory effects of dry material leaching solution on tomato seed germination and seedling growth is the strongest.2.The stud,,on the influences of leaching solution from Allium ascalonicum L.on tomato seedlings of experiment show that:The effet of leaching solution from Allimn ascalonicum L.on tomato seedlings has dual function,the influence on 0.03 g/ml of tomato seedlings promote the strongest,and 0.04 g/ml of tomato seedlings have effect.3.The study on the influences of volatiles from Allium ascalonicum L.on the tomato seedlings of experiment show that:Volatiles from Allium ascalonicum L.on tomato seedlings has dual function,the influence on 80 plants/3.83 m~3 have promote the strongest on tomato seedlings.The influence on 120 plants /3.83 m~3 have inhibition on tomato seedlings.4.The study on the influences of secretion of Allium ascatonicum L.influence on tomato seedlings in the experiment shows that:Secretion from Allium ascalomcum L.on tomato seedlings has dual function,the influence on 60 plants/basin have promote the strongest on tomato seedlings,the influence on 80 plants/basin have inhibition on tomato seedlings.