| Seed and seedling is the basic materials in Chinese herbal medicines production,It’squality play a decisive role in medicinal material yield, quality and drug safety. CurrentNotopterygium incisum seed and seedling production and circulation is still very primitive, ata very low level of industrialization. This article researched the process of seed germinationand the necessary conditions, different indoor nursery and different coverage nurseryresearch test, perfect seedling and breeding system; collect different main origin of the seed,research their quality standards, To preliminary develop Notopterygium incisum seedlingquality standards, promote seed industrialization process. The main results are as follows:1.To break Notopterygium incisum seed double depth dormancy, used the method ofstratification treatment in seeds interior, observed seed embryo growth dynamics and testNotopterygium incisum seed water absorption and water loss, analysis Notopterygiumincisum seed germination of factors. The interpretation of Notopterygium incisum seedgermination by water swelling, material decomposition and transformation, morphologicalafter-ripening period, germinating physiological ripeness and5stages of the whole process,Summary of the Notopterygium incisum seed with vitro development, mature inconsistencies,strong life, like water drought and low water holding capacity, like cool cold characteristics.Soil containing sufficient moisture, lasted for90～120d moist for a long time, the earlierperiod15～25℃, the later2～5℃and loose ventilation environment, lasted from3to6months is the guarantee of the normal seed germination of necessary and sufficientconditions, moisture, temperature, oxygen is seed germination and seedling establishmentnodes impact factors.2.The highest germination rate of Notopterygium incisum seed is at15°C, differentnursery substrate have different effects on seed germination rate and seedling growth. Theloose substrate emergence faster than the mixing substrate, but the germination rate is low,the mixing substrate have large amount of growth. Observe growth dynamics aftertransplanting, vermiculite+sand+the nutritive soil (1:1:1) mixed substrate processingseedling height, root length, root diameter, root fresh (dry) weight, shoot fresh weight (dry)agronomic traits indicators are greater than the other matrix processing.3. Different coverage treatments on the Notopterygium incisum seedling growth have agreater impact, compared to the uncovered planting, shed cover, plastic film mulching, sand cover and wheat straw cover have improved agronomic traits indicators, the growthpotential of the various coverage vary. Shed cover have the best effect in early spring stage,removed shed cover in high temperatures, plastic film mulching have the best effect,observed the agronomic traits indicators, plastic film mulching is the best, second is shedcover, sand cover and wheat straw cover are less effective4. Collected30seeds from the main producing areas Minxian, Zhang County, Tanchang,Weiyuan and Hezhen County, characters and quality indexse are based on the seedinspection procedures for all samples. Cluster analysis the single root fresh weight, rootdiameter, root length, number of latera and seedlings are divided into three categories,research the relationship of seedling level, growth and yield. Formulate quality standard withseedlings dmand, seedling production and application status. Through field experimentverification, the first seedling is higher than other treatments in yield and indexes, the secondseedling also is better than the third seedling.The first seedling standards: Fresh weight per plant≥5.13g, Root length≥24.11cm;The second seedling standards: Fresh weight per plant≥2.43g, Root length≥20.63cm; Thethird seedling standards: Fresh weight per plant≥1.44g, Root length≥16.62cm,... |
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