Effect of supplementary pollination along with GA3 combination on yield attributing characters and hybrid seed yield in hybrid rice (PRH-10)

Abstract

The present experiments were conducted during Kharif 2017 & 2018 for rice hybrid seed production of PRH-10 at Sabour condition. The successful development and use of hybrid rice production technology is prerequisite to exploit its benefit across the rice growing agro climatic regions. It was reported that the production technology of hybrid seed is very much influenced by the provenance. The parental line i.e. seed parent Pusa 6A and pollen parent PRR78 significantly differ in growth duration difference based on 50 percent flowering. Application of GA3 was having significantly and positive effect on enhancing the panicle exertion alone or in combination with flag leaf clipping. For achieving maximum hybrid seed yield application of GA3 in combination with flag leaf clipping and supplementary pollination (rope pulling) is best in sabour (Bihar) condition.