芝麻叶菜采摘时期对主要经济产量性状的影响及综合效益分析OA

Using Wanzhi 21 sesame as the experimental material,four harvesting periods of sesame leaf vegetable were set as follows:starting from the 40th day(P40),the 50th day(P50),the 60th day(P60),and the 70th day(P70)after the emergence of sesame,with the without harvesting sesame leaf vegetable as control(PCK).Through the two year continuous experiment,the effects of different harvesting periods on the main economic traits and yield of sesame leaf vegetable were studied,and a comprehensive benefit analysis was conducted.The results showed that the effects of the harvesting period of sesame leaf vegetable on the plant height,capsule axis length,effective node number,number of capsules per plant,number of seeds per capsule,and 1000-seed weight reached a significant level.The later the harvesting period of leaf vegetable,the slower the decline in the economic traits,which was specifically reflected as PCK>P70>P60>P50>P40.The later the harvesting period of leaf vegetable,the higher the yield of sesame seeds,and the lower the reduction rate of seed yield.On the contrary,the earlier the sesame leaf vegetable harvesting,the higher the yield and net benefit of sesame leaf vegetables,but the lower the dry-fresh ratio of leaf vegetable.Specifically,the dry-fresh ratio showed an order of P40<P50<P60<P70.The benefit from sesame seeds was just the opposite,and the later the sesame leaf vegetable harvesting,the higher the benefit from sesame seeds.The comprehensive benefit of harvesting leaf vegetable was the highest at P70 treatment,which increased by 39.06%-58.22%compared with PCK treatment.Therefore,the 70th day is the best harvesting period for sesame leaf vegetable,which can achieve the greatest comprehensive benefit of sesame cultivation.