Study on Correlation Between the Main Agronomic Traits and Yield of Shangzhi 189
Shangzhi 189 is a new sesame variety with high yield,wide adaptability,high quality and disease resistance.In order to explore its high yield cultivation rules under the summer sowing conditions in the eastern Henan Plain and to provide scientific basis for industrialization, we studied the correlation between the main agronomic characters and the yield of Shangzhi 189 using the data obtained from the high-yield demonstration of Shangzhi 189 conducted at five experimental sites in Shangqiu City,Henan Province in 2021.The results showed that the num-ber of capsules per plant and the number of seeds per capsule were significantly or extremely significantly positively correlated with the yield, and the length of fruit axis was significantly positively correlated with the yield at three test points.Path analysis showed that the total and direct effects of the number of capsules per plant on the yield are large,and the total effects of the length of fruit axis on the yield were the largest, and the indirect effects of the number of capsules per plant on the yield were also significant positive.The length of fruit axis and the number of capsules per plant were highly significant positive correlation,and the two had complementary effects on the increase of yield.To sum up,it was an effective way to obtain high yield by adopting reasonable promotion and control cultivation techniques and increasing the length of fruit axis and the number of effective capsules per plant.