Planting models and deficit irrigation strategies to improve radiation use efficiency, dry matter translocation and winter wheat productivity under semi-arid regions

Yujun Han; Yuechao Wang; Dongmei Zhang; Hong Gao; Ying Sun; Bo Tao; Fengyi Zhang; Hong Ma; Xiaomin Liu; Honglei Ren

doi:10.1016/j.jplph.2022.153864

Planting models and deficit irrigation strategies to improve radiation use efficiency, dry matter translocation and winter wheat productivity under semi-arid regions

J Plant Physiol. 2023 Jan:280:153864. doi: 10.1016/j.jplph.2022.153864. Epub 2022 Nov 17.

Authors

Yujun Han¹, Yuechao Wang², Dongmei Zhang³, Hong Gao², Ying Sun², Bo Tao², Fengyi Zhang⁴, Hong Ma⁵, Xiaomin Liu⁶, Honglei Ren⁷

Affiliations

¹ College of Agronomy, Northeast Agricultural University, Harbin, 150030, China. Electronic address: hanyj920@163.com.
² College of Agronomy, Northeast Agricultural University, Harbin, 150030, China.
³ Grass and Science Institute, Heilongjiang Academy of Agricultural Science, Harbin, 150086, China.
⁴ Soybean Research Institute, Heilongjiang Academy of Agriculture Sciences, Harbin, 150086, China.
⁵ College of Agronomy, Northeast Agricultural University, Harbin, 150030, China. Electronic address: 157492795@qq.com.
⁶ Key Laboratory of Crop Cultivation Physiology and Green Production of Hebei Province, Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, 050035, China. Electronic address: liuxiaominsjz@gmail.com.
⁷ Soybean Research Institute, Heilongjiang Academy of Agriculture Sciences, Harbin, 150086, China. Electronic address: HongleiRen@126.com.

PMID: 36423449
DOI: 10.1016/j.jplph.2022.153864

Abstract

The dry-land farming system of China relies on plastic film mulching and natural rainfall to mitigate damage caused by drought. However, the applications of deficit irrigation modes combined with the planting models can significantly increase production of wheat, dry matter translocation and radiation use efficiency (RUE) remains unidentified. Thus, in 2016-2018, we conducted field trials that implemented four deficit irrigation modes (IJF: irrigation at jointing and flowering stages; IF: irrigation at flowering stage; IJ: irrigation at jointing stage; NI: no irrigation) under two cultivation patterns (ridge furrow rainfall harvesting system (RF); traditional flat cultivation (TF)). The results indicated that the effects of RF system with deficit irrigation (IJF: 250 mm) could significantly increase the soil moisture, and thus enhanced LAI, I_n value, IPAR, RUE, and PAR capture ratio than that of TF-NI planting. This is due to decreased canopy light transmittance (LT), reflection and penetration ratio of PAR, as a result considerable improve the biomass translocation and grain yield. Owing to the very low soil water content after the seed-filling, the LAI, IPAR, and I_n value decreased during the seed-filling under water stress, ultimately affecting the dry matter translocation efficiency. While the IJF and IF treatments provided water for reproductive growth stage, therefore, the production of wheat and RUE were significantly maximum compared with IJ and NI irrigation mode. Under the RF system with IJF, IF, and IJ treatments the grain yield increased by 81.2%, 56.8%, 45.6% and 17.2%, then that of TF-NI treatment, respectively. The highest RUE (1.93 g MJ^-1), dry-matter translocation (154.2%) and seed yield (81.2%) were obtained in the RF-IJF treatment compared with TF-NI. Therefore, the RF-IJF treatment significantly improved the earlier development and rapid plant growth, which is a suitable planting model for increasing soil moisture, LAI, RUE, DMT, and winter wheat production.

Keywords: Deficit irrigation mode; Dry matter; Photosynthetically active radiation; Radiation use efficiency; Ridge furrow rainfall harvesting; Wheat productivity.

MeSH terms

Agricultural Irrigation* / methods
Agriculture / methods
Biomass
China
Edible Grain
Soil
Triticum*

Substances

Soil