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1992~1994年对5088s/R187、7001s/1514和3130ls/1514等两系晚粳杂交新组合的生育特性及其高产栽培技术进行了研究。结果表明这些组合具有分蘖力较强,光合势大,稳粒数多,生物产量高等优点;但由于结实率较低,使其潜在产量优势发挥不理想。生产上应用这些组合时应以保证足够稳数,提高结实率为重点,切实抓好早播、壮秧、苗足、前促、中控、后健等措施。
The growth characteristics and high yielding cultivation techniques of new combinations of two lines of late japonica rice such as 5088s / R187, 7001s / 1514 and 3130ls / 1514 from 1992 to 1994 were studied. The results showed that these combinations had many advantages such as strong tillering ability, photosynthetic potential, stable grain number and high biological yield. However, the potential yield advantage was not ideal because of low seed setting rate. Production should be applied to ensure that these combinations are stable enough, improve the seed rate as the focus, earnestly grasp the early sowing, strong seedling, seedling, before the promotion, control, health care and other measures.