为了杂交水稻新品种‘泸优692’高产潜力与高产途径，利用2019~20

For the high yield potential and high-yield approach of the new hybrid rice variety'Luyou 692', the relevant data from the 20-point regional test from 2019 to 2020 was used to determine the full growth period, effective ear, plant height, and ear length of'Luyou 692'. The variability, correlation and general analysis of variability, correlation and general analysis were carried out on the number of grains per ear, the number of real grains, the seed setting rate, thousand-grain weight and yield. The results of correlation analysis showed that the yield was positively correlated with the whole growth period, effective ears, total number of grains, number of real grains and seed setting rate; the results of path analysis showed that the total number of grains and seed setting rate contributed the most to yield. Therefore, after the new variety'Luyou 692' was transplanted, the nitrogen fertilizer should be adjusted moderately, and the grain fertilizer should be added during the young ear differentiation period to ensure the combination of water and fertilizer to increase the seed setting rate and lay the foundation for the increase in yield.

In order to study the high yield potential and approach of the New Hybrid Rice Variety 'Luyou 692', the variability, correlation and general analysis of the whole growth period, effective panicle, plant height, panicle length, grain number per panicle, grain number per panicle, seed setting rate, 1000 grain weight and yield of 'Luyou 692' were carried out by using the relevant data of 20 regional trials from 2019 to 2020. The results of correlation analysis showed that the yield was positively correlated with the whole growth period, effective panicle, total grain number, full grain number and seed setting rate; The results of path analysis showed that the total grain number and seed setting rate contributed the most to the yield. Therefore, after transplanting the new variety 'Luyou 692', appropriately adjust the backward shift of nitrogen fertilizer, and increase the application of grain fertilizer at the young panicle differentiation stage to ensure the combination of water and fertilizer, so as to improve the seed setting rate and lay a foundation for the increase of yield.<br>

In order to improve the high-yield potential and ways of hybrid rice variety' Luyou 692', the variability, correlation and warp analysis of the whole growth period, effective panicle, plant height, panicle length, grains per panicle, filled grains, seed setting rate, 1000-grain weight and yield of' Luyou 692' were carried out by using the relevant data from 20 regional trials from 2019 to 2020. The correlation results showed that the yield was positively correlated with the whole growth period, effective panicle, total grains, filled grains and seed setting rate. Path analysis showed that total grain number and seed setting rate contributed the most to yield. Therefore, after the new variety' Luyou 692' is transplanted, the nitrogen fertilizer should be adjusted to move backward moderately, and grain fertilizer should be added during the young spike differentiation period to ensure the combination of water and fertilizer, so as to improve the seed setting rate and lay a foundation for the increase of yield.