杂交水稻新组合粒两优8022百亩片单产18.77 t/hm^(2)超高产栽培技术

Super High-yielding Cultural Techniques of New Hybrid Rice Combination Liliangyou 8022 Yielded 18.77 t/hm^(2) on a 100-mu Scale

粒两优8022是湖南杂交水稻研究中心用小粒不育系粒68S(千粒重13.8 g)与恢复系R8022选配而成的强优势杂交水稻新组合。该组合穗大粒多,结实率高,稻米品质好,株叶形态好,冠层较高而穗层相对较低,根系发达,具有优异的抗倒伏能力和较大的高产潜力。2023年,粒两优8022参加四川省德昌县百亩片超高产攻关示范,平均单产达18.77 t/hm^(2)。详细阐述了其超高产栽培技术。

Liliangyou 8022,derived from the small-grain male sterile line Li 68S(1000-grain weight at 13.8 g)and the restorer line R8022,is a new heterotic hybrid rice combination developed by Hunan Hybrid Rice Research Center.It has the advantages of large panicles,high seed-setting rate,fine grain quality,good plant type,high canopy but relatively low panicle layer,vigorous root system,excellent lodging resistance and high yield potential.In 2023,Liliangyou 8022 participated in the super high-yielding demonstration on a 100-mu scale in Dechang County,Sichuan Province,and yielded an average of 18.77 t/hm^(2).In this paper,the super high-yielding cultural techniques of Liliangyou 8022 were described in detail.