宁夏枸杞（LyciumbarbarumL.）花器官形态多样性与品系间识别研究

Subjects: Agriculture, Forestry,Livestock & Aquatic Products Science >> Plant Protection submitted time 2018-07-18 Cooperative journals: 《广西植物》

张益芝 戴国礼 秦垦 马海军

Abstract： In this study, 42 species of Lycium barbarum L. were used as experimental materials. Based on the evaluation of the morphological indexes of the 16 traits of their floral organs, The polymorphisms of morphological differences of Lycium barbarum L. were studied usingone-wayANOVA, principalcomponentanalysisand clusteranalysis.The results of the study showed that the morphological indicators of the same flower organ of Lycium barbarumL. werenot significantlydifferent(P<0.05)atdifferenttimes.(Thespecifictime is July, August and September of 2017.) The principal component analysis suggested that 6 traits are crucial to the identification of L. barbarum cultivars, including Petal edge color, coloroffrontandback ofthepetal,petalshape, colorof backofpetal,colorofFlowerthroat, Pistil and stamen location, The cumulative contribution rate of these floral traits reached 84.791%,That is the difference in Lycium barbarum L. flower department is mainly reflected in these 6 traits. The results of cluster analysis showed that 42 strains of Lycium barbarum L.could be divided into 6 categories at an Euclidean distance of 7.5, classification results are consistent with the observed floral traits. Through this study, it was clarified that the flower organ morphology of The same strain Lycium barbarum L. exhibits certain stability at different times, which could be used as one of the distinguishing indicators for distinguish different seed quality in Lycium barbarum L.; At the same time, six main components were selected to reflect the differences in flower organ morphology of Lycium barbarum L. and divided 42 species of Lycium barbarum L. into six categories.. Initially established morphological identification methods within and between Lycium barbarum L. seed strains, which provides the basic information for the floral Morphological research and Varijiety Identification of about the cultivars of L. barbarum, it also has certain reference value for practicalproduction.

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