Abstract
The cold regions are located in high latitudes and cold climates. The local excellent ornamental plant resources are relatively scarce. The plant species that are suitable for both ornamental and productive benefits of landscape of flower sea construction are also even fewer. Therefore, it is imperative to introduce and screen the plant resources suitable for cold regions to create the landscape of flower sea. The rape, an oilseed crop, was used as a research object in order to create a productive flower landscape with both ornamental and economic values in cold regions. Four rape flower varieties, Qingza No. 5, 7, 9, and 11, were introduced from Qinghai Hufeng Agricultural Science and Technology Group Co., Ltd. They were planted in the experimental practice base of Northeast Agricultural University in three batches. Development characteristics and seed yield of rape flowers on different sowing dates were studied. The fuzzy probability method was used to comprehensively evaluate the varieties. The results showed that the rape flowers grew well in Harbin City during the experimental sowing period, which could form a good landscape of flower sea and had a considerable rapeseed yield. It could be widely used in cold urban and rural areas, such as Harbin City. In view of the experimental results, the strategies of creating a productive landscape of rape flower sea were proposed and the economic benefits were analyzed. It could change the status quo of a uniform landscape of flower sea in cold regions, help the development of rural tourism, and promote local economic income.
维普
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