Ledu Long Pepper Purification And Rejuvenation And Resistance To Disease Root Stock Screening Study

There are two big problems: varieties of degradation and disease in ledu long pepper cultivation production.This research method of purification and rejuvenation through a single plant selection,to solve the cultivated varieties of degradation in production;Through statistical survival rate,growth potential and the root resistance,grafting,and the field of plant morphological index of resistance to blight resistance increase yield of the stock selection study, to solve the cultivation in the production of disease.The results of the study as follows:1.Graft survival rate. Graft survival rate is shown as: y1 > y11 > y22 > F2 > y5; Symbiotic affinity is shown as: F2 > y22 > y11 > y5 > y1, accounting for that graft survival rate of high and low, does not represent the grafting affinity of symbiosis, grafting operation proficiency, management will affect the grafting survival rate after grafting method, grafting, so more should consider late symbiotic affinity.2.The scion growth potential and disease resistance. Looks like the root stock F2 is better than the stock and comparison, root stock y1, y5 death rates were 33%, 27%, just below comparison, comparing the root stock y11, y22, F2 have good disease resistance.3.Grafting plant morphological index determination. Each deal with no significant differences in seedling stage, but growing up with the propulsion, F2, y11 of grafted plants growing in the stock are stronger than the other, through the determination of plant height, stem diameter, leaf number, show that become short by grafting plant type, leaf number, branched, adversity resistance improved.4.Grafting capsicum engraftment to preceding pepper cultivation in the greenhouse, disease occurrence in hot pepper growing survey. 5 root stock grafting plague outbreak is lighter, contrast ledu long pepper heavy disease, with pepper growth period to carry on the incidence of a disease is on the rise. Rate within 10% of each stock and the controlled ledu long pepper incidence of 55.5%, with root stock y22, F2, y11 grafting disease control effect is best, the incidence of the pepper blight control below 5%, fully embodies the stock y22, F2, y11 have ability to resist disease.5.The grafted plant early production. Through grafting area determination of average yield of pepper, from high to low in turn is F2 > y11 > y22 > since the root > y5 > y1, among them with F2, y11, y22 grafting area average of pepper production was significantly higher than that of the seedling, respectively, 41.2%, 34.6%, 24.2% higher than the root.6.Integrated all factors, the stock of F2, y11 can be used as ledu long pepper the varieties of the root.7.Through an individual choice method screen 30 superior individual, then respectively stallion, completed a priority for the purification and rejuvenation, to prepare for the next year between the strain identification.