A kind of subtropical region promotes cassava flowering hybrid breeding method
A subtropical area, hybrid breeding technology, applied in the field of crop cultivation, can solve problems such as difficult and accurate control, achieve strong cold resistance, strong adaptability, and promote the growth of roots
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Embodiment 1
[0027] First, the inventor carried out the implementation of the invention technology in February 2012 in Wuming Lijian, Nanning, Guangxi, as follows:
[0028] (1) Land plot selection: choose a wasteland around Lijian Town, Wuming County, Nanning, Guangxi to implement this technology. The soil in this land is relatively poor, and no crops have been planted for many years. NPK levels were also lower.
[0029] At the same time, the land is surrounded by open land, without tall shelters, good lighting conditions, good ventilation, and flat terrain.
[0030] (2) Planting management:
[0031] ① Soil preparation: shallow plowing will be carried out on the selected land, and a small amount of compound fertilizer will be applied as the base fertilizer at the same time. Use 20 kg of 45% compound fertilizer per mu. After spreading evenly, turn the land and level it, and open ditches.
[0032] ②Plant when the average temperature of the day is 16°C, and choose perennial cassava as paren...
Embodiment 2
[0045] With the technology of the present invention, the inventor has also carried out cassava hybridization selection and breeding in Hepu, Fangchenggang, Beihai, Guangxi, and has achieved good results.
[0046] Table of results of flowering-promoting cross breeding of Hepu cassava in Beihai
[0047]
[0048] Results of flowering-promoting crossbreeding of cassava in Fangchenggang
[0049]
[0050] It can be seen from the above data that the technology of the present invention has excellent flowering-promoting effects in Nanning, Hepu and Hepu, Beihai, indicating that the technology has better adaptability in Guangxi.
[0051] At the same time, the inventor also found that the offspring bred by this technology have the following excellent traits through years of observation in many places: strong cold resistance, resistance to red spiders and high yield.
[0052] The following are the statistical results of the three trials:
[0053] Test results in three places in 20...
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