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Investigation Of Pea Germplasm Resistance To Callosobruchus Chinensis. L

Posted on:2015-05-10Degree:MasterType:Thesis
Country:ChinaCandidate:W W ZhongFull Text:PDF
GTID:2283330452460634Subject:Botany
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Pea (Pisum sativum L.), also known as wheat peas, beans, wheat, beans, and othercold, which is also called soft pea pod peas; English name Pea, Garden Pea,chromosomes2n=14. Peas, vetch family (Viceae), leguminous (Leguminosae),Papilionoideae (Papilionoideae), pea genus (Pisum). In higher plants, science, pea beansFabaceae genus is a genus in the family. Pea is an annual (spring) or more years old(autumn) herbaceous climbing of long-day plants, likes the cold and humid climate,cold and not heat.Peas like (Bruchus pisorum L.) as a single feeding pests, only harm peas, andgeneration only occur annually; while Mungbean bruchid is polyphagous pest infestationin addition to green beans (Vigna radiata L. Wilczek), it can also damage adzuki bean(Vigna angularis Willd. Ohwi&Ohashi), cowpea (Vigna unguiculata L. Walp.), peas,beans (Phaseolus vulgaris L.), lentil (Lens culinaris Medik) and faba bean (Vicia faba L.)and other legumes, and in our country the central region can occur year5-7generations ayear, moisture and high temperatures occur in Guangdong and other regions10to11generations. In China, the Mungbean bruchid is one of the serious pest infestation of peas.The study of256randomly selected domestic and peas resources through indoorinfestation trials found that peas and beans resources resistance sources and their colorslike green beans have a great relationship.The results showed that the tested256copies peas resources, the resistance level of48immunization materials, accounting for18.75%; highly resistant material56,accounting for21.88%; moderately resistant47, accounting for18.36%; resistancematerial23, accounting for8.98%; emotional material19, accounting for7.42%, in thesense of material16, accounting for6.25%; highly susceptible material47, accountingfor18.36%. Grain color is light-colored (yellow, light pink, yellow), green, dark(brown, brown hemp, etc.) resources peas, green beans, as the eggs hatch and theformation of the number of beans Zhukong were8.19±7.40,13.23±7.18,2.66±4.31units/treatment, the difference was significant (P <0.05). Source for foreign and domesticsowing area, peas autumn area of domestic resources, Mungbean bruchid eggs hatch andthe number of beans to form Zhukong were10.26±6.64,6.96±7.82,4.21±5.48units/treatment, a significant difference (P <0.05). Domestic sowing area, comes from theInner Mongolia Autonomous Region, Shaanxi Autonomous Region, Shaanxi, TibetAutonomous Region, peas resources Mungbean bruchid showed a higher resistance;while domestic autumn area, from Sichuan Province, peas resources are on Mungbeanbruchid showed a higher resistance; while abroad at the time of the introduction of peavarieties for the production of the major considerations, economic agronomic traits suchas grain size varieties, and with the introduction of ground Mungbean bruchid infestationhas occurred about, so the Mungbean bruchid resistance no obvious pattern.Use part of the group of anti-SSR markers Bruchid of correlation analysis, due to time reasons, a small number of selected markers meet the criteria, no obvious pattern.Analysis of different varieties of peas resources Mungbean bruchid resistance,suggesting that differences in its own resistance phytohemagglutinin (PHA) or amylaseinhibitor The content of the differences caused by the inhibition of the growth of theMungbean bruchid. Resources from different sources pea Mungbean bruchid resistance,suggesting that the difference is mainly due to the autumn and winter warm and humidclimate zones, more than the active insect, for autumn sowing peas could easily lead tosustained damage, thus forming a strong selection pressure, fitness survival of naturallaw created a resource in the region has a strong pea insect resistance, so that the peascome from domestic resources and the overall anti-autumn area bruchid strong. DifferentColor peas resources Mungbean bruchid resistance, suggesting that the difference ismainly due to the tannin content germplasm differences caused.
Keywords/Search Tags:pea (Pisum sativum L.), Pea weevil (Bruchus pisorum L.), Mungbean bruchid(Callosobruchus chinensis. L), seed color, origin, situation of seed damage
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