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ryegrass造句
1. I wade chest-high in bleached ryegrass murmuring in the wind, and spy down the rugged coast of California. 2. Perennial ryegrass throws a lot of autumn growth. 3. Tiller populations were higher for yorkshire fog than ryegrass. 4. An alternative is genuine old pasture Kentish indigenous ryegrass. 5. Four species, including kentucky bluegrass , perennial ryegrass, tall rescue and zoysia grass were selected in the experiment. 6. At one time , S 22 Italian ryegrass was the most used of Italian. 7. Ryegrass - rice cropping system is rapidly developed in middle - and - lower reaches of Yangtze River in recent years. 8. The seed productivity of 6 turf type ryegrass (Lolium perenne) varieties were studied firstly in the irrigation area of Ningxia. 9. The turnover of lamina tissue of perennial ryegrass was systematically studied through cutting experiment by the application of the theory and methods of the tissue turnover. 10. This paper has studied the growth of ryegrass in mixed soil of copper mine tailing and garden soil as affected by some amendments including montmorillonite, rice straw and chicken manure. 11. The annual ryegrass is one of Gramineae forages with high production and rich nutrition. 12. A method Agrobacterium tumefaciens transformation for perennial ryegrass was developed using the calli derived from mature embryos, and the transgenic plants were successfully obtained. 13. Drought resistance of Lolium Perenne (Perennial Ryegrass)which treated by plant growth retardants and mowing was studied. 14. There is an intermediate type of ryegrass first produced by a New Zealand plant breeder. 15. Ryegrass (Lolium L. ), a graminaceous crop, is one of the most important grasses for forage and turf, and widely distributes in temperate regions. 16. The growth speed of ryegrass regeneration shoots in intercropping with Chinese milk vetch faster than in single cropping by more than 50%. 17. Perennial ryegrass is a pasture and turfgrass species holding strong adaptability. The applications of transgenic technology had already been an important approach on its breeding. 18. Quite distinct phenotypic modifications were elicited from the clone by the different ryegrass strains. 19. Lower lever of lactic acid and propionic acid had little effect on the ensilage fermentation of Italian ryegrass. 20. A research project of the authors on the effect of endophyte infection on drought resistance of perennial ryegrass is briefly introduced. 21. On laboratory, five Bacillus have been developed into vaccine liquid products. Soaked with vaccine liquid , the seeds of perennial ryegrass have been planted in sterilized soil. 22. Growth of young plant of tall fescue and Italian ryegrass were inhibited under sea-salt stress of different concentrations. 23. The somaclonal variation of regeneration plant derived from mature embryo of perennial ryegrass (Lolium perenne L. were analyzed with RAPD makers. 24. The effects of fertilization and sowing rate on the seed productivity of turf type perennial ryegrass (Lolium perenne) were studied using the split plot experiment design. 24.try its best to gather and build good sentences. 25. Ammonia volatilization was estimated in the field from perennial ryegrass turf after application of five kinds of N fertilizer. 26. The results are as follows:1. Establishment of plant regeneration system of perennial ryegrass. 27. The selectivity of carfentrazone-ethyl, Metostrey and tribenuron-methyl were higher with less influence on other species, and safe to gramineous vegetable such as ryegrass. 28. Seeing from the whole evaluation period, the average green degree of kentucky bluegrass is higher than that of tall fescue and perennial ryegrass. 29. Growth regulators and their concentration supplemented had great effect on callus induction and regeneration of perennial ryegrass. 30. The chromosome karyotypes and the chromosome variation of regenerated plants of perennial ryegrass(Lolium perenne L.