Saline-alkaline tolerant germplasm screening and high-yield cultivating method of barley

Abstract

The invention discloses a saline-alkaline tolerant germplasm screening and high-yield cultivating method of barley. Laboratory experiments and outdoor experiments are combined for performing saline-alkaline tolerant germplasm screening; the laboratory experiments include germinating experiment and sand culture physiological experiment in a seedling stage, the outdoor experiments include outdoor saline-alkaline tolerance identification experiment of a salt pond and coastal field identification experiment; the cultivating method comprises the steps of film coverage, fresh water salt pressing and moisture making, and carrying out experiments under different sowing times, fertilizers and densities. The method can comprehensively identify and screen saline-alkaline tolerant characteristics of barley in a barley germination period, in a seedling stage and in an adult-plant stage by use of filter paper, sand, the salt pond and seaside heavy saline-alkali soil, and can stably and comprehensively detect the saline-alkaline tolerance of the barley in a high-efficiency manner, and can formulate the relevant high-yield culture technique for the saline-alkali soil.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to the screening identification and high-yield cultivation method of saline-alkali-tolerant barley. Background technique [0002] Barley is one of the oldest crops in the world. It has the advantages of early maturity, short growth period, wide adaptability, and high yield. It is planted all over my country. The sown area and total output are second only to rice, wheat, and corn, ranking first among cereal crops. four. Jiangsu Province has a long history of growing barley and is one of the main malting barley production areas in my country. The planting area is mainly concentrated in Yancheng, accounting for more than 80% of the province's area. [0003] Salinized soil accounts for about 10% of the world's arable land, which can reduce crop yields by more than 20%, and in severe cases, agricultural production activities cannot be carried out. With the global water resource c...

AI Technical Summary

Problems solved by technology

[0005] At present, the screening of barley saline-alkali-tolerant germplasm is mainly through the cultivation of nutrient solution, and only screening and identification at the seedling stage is carried out. Although it is simple and easy to implement, there are large errors because there is no production test in the natural environment of the field.

Images