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- W2391921941 abstract "Reproductive characteristics of two Reaumuria soongorica populations was investigated at Alashan Region, Inner Mongolia. For the population A R. soongorica is the predominant species in the grassland vegetation. While for the population B R.soongorica is a secondary invader of the vegetation. The results showed that R.soongorica expands its population mainly by seed germination and by root splitting. However, its individual number could also be increased by producing adventitious roots and then separated from the mother plant under certain conditions. The ways of reproduction varied with the population. In the population A, vegetative reproduction is the major type. About 72.4% of the examined individual within the population was propagated asexually. No seedling developed from seeds was found in the population A. In the population B only seed germination and root splitting were found. About 53.5% of individuals within the population was reproduced sexually. About 3.9% of plants was developed from seeds. No plant was propagated by producing adventitious roots. For both populations A and B a significantly positive correlation ( n =30, P 0.01) was found between the number of individuals produced by root splitting and the canopy diameter of the shrubs. But no significant correlation was found between the number of individuals produced by producing adventitious roots and the canopy diameter of the shrubs. The adventitious roots production depended on two factors.i.e. one is the depth of branches buried by sand, and another is sufficient rainfall to keep the soil moisten. The first year after closing about 48% of shrubs within the population A produced seed. The average seed yield was 0.89 g/shrub with the range of 0.04~3.63 g/shrub. The relationship between reproductive characteristics and ecological environments were discussed." @default.
- W2391921941 created "2016-06-24" @default.
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- W2391921941 date "2002-01-01" @default.
- W2391921941 modified "2023-09-25" @default.
- W2391921941 title "Reproductive characteristics of Reaumuria soongorica populations" @default.
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