Effects Of Different Cultivation Conditions On Germination, Growth And Physiological Change Of Pod Fern

There are more than90kinds of wild ferns, all in natural wild state. Which is more extensive distribution patterns fern and plant type is bigger, and pods with edible and medicinal, fern beautify the environment and development value of industrial raw material.In this article the basis of research achievements, use of ecology, plant physiology and breeding theory as guidance, pod for ecological environment fern survey, screening for factors which growth of the pod fern ecological environment, and carry out the sexual and asexual pod fern breeding test, through quantitative research and statistical analysis, this paper analyzes all kinds of ecological factors change on pods fern and growth of breeding effects to establish ferns breeding optimum ecological factor combination, put forward the scientific and feasible artificial breeding technology system pod fern. On the basis of the ecological factors in different to the influence of the growth of the pod fern, find the growth of environmental conditions pod fern, give full play to the functions of fern pods.The main research results are as follows:(1) The spore fern pods vitality is stronger, at room temperature can keep nearly a year; At under5℃refrigerated can save almost a year; in the condition of freezing can save one to two years.(2) Use different roots to breeding new pod fern plants, points of root in the first year of germination ratio lower5%than upright stems processing roots processing,2years new plant formation rate50%lower, but the third year new plant formation rate higher32%; The processing plant ash was beneficial to pods fern meristematic roots points root breeding, peatmoss take second place, no fat is the worst.(3) In average temperature20℃-24℃conditions, the sporophyte appearing time and amount, the rate to form the sporophyte is obviously superior to the average temperature12℃processing;"spore germination, the original20%not leaves body growth and the gametophyte form the sporophyte rate in turn:moisture45%>40%>35%; In the shading cases, light transmittance in28.1%the full light intensity interval range suits breeding fern pods;in4kinds of training matrix, the gametophyte form the sporophyte rate, perlite0%,5%river sand, vermiculite is33%, the meadow soil is52%.(4) Organic excessive fertilizer make pods fern seedling growth under control, plant height and leaves the number of slowing growth medal, biomass accumulation reduce, the main reason may be due to excessive fertilizer pod fern leaves the transpiration rate of seedling decreased, thus inhibiting the seedling growth and biomass accumulation; Three kind of fertilizer in the fat and the new leaves grow chicken number for T2group most, pig fat and cows are fat T1group most. Each of the fertilizers are no new leaves T4group generate, may be too much fertilizer to suppress the growth of the pod fern. In aggregate three fertilizer, chicken fat pod is more sensitive fern grows, the three kinds of fertilizer fertilization shoes is T1group pod grow more appropriate for the fern.(5)6different treatment groups, the soil moisture content of field capacity the percentage is T1:50%to55%, T2:55%to60%, T3:60%to65%, T4:70%to75%, T5:75%to80%, T6:80%to85%. T4group pods seedling height, fern leaves pieces are higher than the other5groups; Early determination because of water treatment lead to increased chlorophyll content, improving the pods of water fern the adaptability of the gradient; in Different water treatment, the pods fern Pn and Tr significantly the seedling reduce, curbing the pods seedling biomass accumulation fern, through the improve water use efficiency to provide for the growth of moisture and adapt to different moisture gradient; During the whole determination, T3group of proline content minimum, T1, T2group of proline content with the increase of water content and gradually reduce and significantly higher than T3group, in the role of osmotic regulation plays an important role in; T4T5, T6group and proline content decreased gradually increase with water. Early determination, MDA content T3group minimum, T1, T2and T3group significantly greater than the two groups converged. T4T5, T6group with moisture content and is decreased, but not obvious, the damage that a lesser degree. Research shows that pods to relatively dry fern soil water environment, T3, and T4group (the quality of the soil moisture content28%-32%) is growth and physiological characteristics pod fern optimal soil moisture content of quality.