33results about How to "Fast breeding" patented technology

The invention provides a breeding method for a purple Chinese cabbage. The breeding method for the purple Chinese cabbage comprises the steps that a, a purple selfing line variety is breeded, i.e., a purple Chinese cabbage flower stalk selfing line serves as a female parent, a green Chinese cabbage selfing line serves as a male parent, and crossbreeding is conducted to obtain a purple cross breed; and the purple cross breed serves as a female parent, a green Chinese cabbage selfing line serves as a backcross male parent, back cross breeding is continuously conducted, and a plant with the first target trait stable is selected as the purple selfing line variety I; b, a purple non-heading pakchoi selfing line variety is breeded, i.e., a purple cabbage selfing line serves as a female parent, a non-heading pakchoi selfing line serves as a male parent, back cross breeding is continuously conducted, and a plant with the second target trait stable is selected as the purple selfing line variety II; and c, a purple Chinese cabbage variety is breeded, i.e., the purple selfing line variety I serves as a female parent, the purple selfing line variety II serves as a male parent, and crossbreeding is conducted to obtain the purple selfing line variety. The purple Chinese cabbage is short in growth period, long in shelf life, high in heat resistance, good in quality and high in yield.

The invention relates to a method for largely and rapidly reproducing lactic acid bacteria, which comprises the following steps: (1) mixing wormwood or tea-leaf, molasses with common salt in the proportion of 16:8:2 in percentage by weight; (2) filling the mixed wormwood or tea-leaf, molasses and common salt into a plastic film bag, tightening the mouth of the plastic film bag, and spontaneously fermenting at normal temperature; (3) fetching 60kg of molasses and 1kg of common salt and adding 300L of water to stir and dissolve the molasses and the common salt, and then, adding the water into a plastic tank of which the capacity is 3000L to 3000L to prepare a nutrient solution for reproducing the lactic acid bacteria through the suction of a pump; and (4) after 7 days of spontaneous fermentation, taking out a fermentation solution, i.e. a lactic acid bacteria strain stock solution, adding 100L of lactic acid bacteria strain stock solution into the plastic tank, and then adding the nutrient solution of the lactic acid bacteria to 3000L. The invention has the advantages as follows: the technology and the method for largely and rapidly reproducing the lactic acid bacteria by fermenting the wormwood or the tea-leaf are at least 100 times higher than a traditional lactic acid bacteria production technology in speed, and the cost price is only 1 / 100 the cost price of the traditional lactic acid bacteria production technology.

The invention provides a watermelon hybridization rapid seed selection method, and relates to the technical field of watermelon breeding. The fast seed selection method for watermelon hybridization includes first-generation selection, second-generation selection and third-generation selection. The fast watermelon hybrid seed selection method provided by the invention can effectively shorten the cycle of watermelon seed selection, and the selection generation is short and the selection The progress is fast, the workload is small, and the breeding efficiency is high.