Effect of Different Techniques (Staggered Sowing, Planting Ratio and Supplementary Pollination) on Seed yield of Hybrid Rice (PRH-10) in Bihar Condition

Author: Sushmita* and Mukesh Kumar

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Abstract

The experiments were conducted during Kharif 2017 and 2018 for seed production of hybrid rice PRH-10 at Sabour, Bhagalpur (Bihar) condition. The seed production of hybrid rice is very much dependent on local environmental conditions besides the flowering natures of its parental lines. Based on 50% flowering, the parental line, which includes seed parent Pusa 6A and pollen parent PRR78, had a considerable difference in growth duration and flowering time. The accomplishment of synchronization of seed parent and pollen parent flowering is one of the most important milestones in this process. It was accomplished in the current experiment using the growth duration difference method. Other major variables for increased seed setting percent and hybrid seed output were days to 50% blooming, panicle exertion, and flag leaf angle. Several methods of supplementary pollination under various staggered sowing and planting ratio, had been practiced to find out maximum seed setting percent and hybrid

Keywords

Pollen parent, Seed parent, Supplementary Pollination & Hybrid.

Conclusion

According to the findings of the preceding investigations, successful production of hybrid rice PRH 10 in Sabour (Bihar) conditions is required. GA3 application at the 5% flowering stage increased panicle effort dramatically and positively, either alone or in combination with flag leaf cutting. Seed setting percentage was increased by 5.04 percent (9.25; 554.04 kg/ha) over control (4.21; 226.74 kg/ha) with supplemental pollination by rope pulling alone. GA3 was determined to be the optimum treatment for hybrid seed yield and its contributing features such as panicle length, panicle exertion %, and spikelet opening when combined with flag leaf cutting and rope pulling.The effect of planting ratio was also found significant. Seed setting percent were significantly higher in planting ratio 2:6, while increasing the planting ratio, percentage seed setting decreases. However, total seed yield per ha were recorded highest in planting ratio 2:8.

References

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How to cite this article

Sushmita and Kumar, M. (2021). Effect of Different Techniques (Staggered Sowing, Planting Ratio and Supplementary Pollination) on Seed yield of Hybrid Rice (PRH-10) in Bihar Condition. Biological Forum – An International Journal, 13(3a): 364-369.