Effects of Sowing Mode on Lodging Resistance and Grain Yield in Winter Wheat

Abstract

For improving lodging resistance and increasing grain yield in wheat in the Yellow-Huai River Basin in China, different sowing modes have been investigated. Conventionally, the small-flat-plot sowing mode has been adopted in wheat cultivation. However, this sowing mode leads to heavy lodging and low land use efficiency. In this study, a new sowing mode, high-low-plot sowing mode with two more rows sowed on the high plot, was investigated. Two cultivars, Hengguan 35 and Jimai 44 were used for two seasonal field experiments from 2018 to 2020. The results showed that grain yield improved with the high-low sowing mode by as much as 25% since more spikes per unit area were observed concomitant with reduced stem lodging. The grain yield increase was mainly due to the enhanced spike number per m2, while the lodging resistance was improved through the lowered plant height and the center of gravity height. This research proves that the high-low-plot sowing mode is an improved sowing mode for producing greater grain yield with better lodging resistance in the wheat production area in northern China.

Effects of Environmental Stresses (Heat, Salt, Waterlogging) on Grain Yield and Associated Traits of Wheat under Application of Sulfur-Coated Urea

“…Similarly, our results of reduced photosynthetic rate, leaf area, dry biomass, and yield were consistent with previous research conducted on wheat [7] and soya bean [8]. Waterlogging is undoubtedly reported to negatively impact a plant's physiological and biochemical response [16][17][18]. However, few studies also reported the innate adaptability of a plant against waterlogging stress [35].…”

“…On the other hand, waterlogging is also a significant factor influencing the yield and quality of wheat. Waterlogging stress reduces yield, number of ears per square meter, grain weight, protein content, and levels of chlorophyll a and b while increasing proline levels [16]. Similarly, waterlogging induced a stress-activated antioxidant response system in Phalaris arundinacea [17].…”

A Review on Regulation of Irrigation Management on Wheat Physiology, Grain Yield, and Quality

“…The High-Low Seedbeds Cultivation (HLSC) pattern was developed by the Binzhou Academy of Agricultural Sciences, Shandong Province, China, aiming to solve the problems of low land utilization rate and light loss in the TI pattern [ 65 ]. In the HLSC, the land is integrated into a plane alternating between high and low beds, and wheat is planted on both beds.…”

“…Furthermore, the WP of HLSC was 7.69% and 6.8% higher than that of TI and RC respectively [ 66 ]. In the study of Wu et al [ 65 ], two cultivars were used to investigate how HLSC mode increased grain yield and lodging resistance compared with TI. The results showed that the grain yield increase was mainly due to the enhanced spike number per area, while the lodging resistance was improved through the lowered plant height and the center of gravity height in the HLSC model.…”

Winter wheat lodging resistance characteristics as affected by nitrogen application time and the underlying mechanism

“…Lodging resistance was positively correlated with the wall thickness, the stem diameter, and the dry weight per centimetre, but the basal internode length was inversely correlated with lodging resistance (Tripathi et al, 2003). In addition, to characterise the lodging resistance of wheat plants, the lodging resistance index (LRI) is often used, and the relationships between LRI and other traits are well established (Wu et al, 2021).…”