Effects of Different Bandwidth Configurations on the Agronomic Traits,Quality,and Water Use Efficiency of Ridge Planting Winter Wheat
In order to select lodging-resistant ridge bed planting models with high efficiency that is suitable for the strong gluten winter wheat,the effects of different planting treatments with different structural configurations such as conventional border sowing(TCK),2 bands wide ridge bed sowing(T2),3 bands(T3)conventional ridge bed strip sowing and 4 bands(T4)conventional ridge bed strip sowing on the population tillers,stem feature,agronomic traits,photosynthetic characteristics,quality,and water use efficiency of winter wheat are investigated under the field experimental environment.The results indicate that the number of tillers under the T4 planting treatment was significantly lower than that of other planting models throughout the entire growth period of the winter wheat,and the population size under the T2 planting treatment was significantly higher than that of other treatments during the maturity period of the winter wheat.The leaf area index under the four planting treatments fluctuates in an unimodal curve that increase at first and then decrease with the progress of the growth,and peaked at the booting stage.At the 7d,the 14d,and the 21d after flowering,the photosynthetic parameters under the TCK planting treatment were significantly lower than those of the T2 and T3 planting treatments,but significantly higher than those of the T4 planting treatment.Ridge bed planting can help reduce the plant height,the center height of gravity,and the length between nodes of the winter wheat.The values of all these indicators of the three planting treatments were significantly lower than those of the TCK planting treatment.As the spaces among the rows of the winter wheat on the ridge decreases,the stem height,the center height of gravity,and the length between nodes of the winter wheat gradually increase.A sequence of T2<T3<T4 can be observed.Compared with TCK,T3,and T4 planting treatments,the T2 planting treatment has an increased grain yield of 3.0%,1.5% and 14.0%,respectively,and an increased water use efficiency of 4.2%,0.6% and 10.1%,respectively.To sum up,the T2 planting treatment and the T3 planting treatment are the optimal planting methods to ensure the stable yield,good quality,high water-use efficiency and lodging resisiof the strong gluten winter wheat.
winter wheatwide-width sowingridge plantingagronomic characteristicphotosynthetic characteristicwater use efficiency
国家科技期刊平台
NSTL
万方数据
