Effect of deficit irrigation scheduling and planting pattern on leaf water status and radiation use efficiency of winter wheat

2020 ◽  
Author(s):  
Xun Bo Zhou ◽  
Li Yang ◽  
Guo Yun Wang ◽  
Yun Xiong Zhao ◽  
Hai Yan Wu
Keyword(s):  
Winter Wheat ◽  
Deficit Irrigation ◽  
Water Status ◽  
Irrigation Scheduling ◽  
Leaf Water ◽  
Radiation Use Efficiency ◽  
Leaf Water Status ◽  
Planting Pattern ◽  
Use Efficiency ◽  
Radiation Use

scholarly journals Biomass accumulation and radiation use efficiency of winter wheat under deficit irrigation regimes

2009 ◽  
Vol 55 (No. 2) ◽  
pp. 85-91 ◽  
Author(s):  
Q. Li ◽  
M. Liu ◽  
J. Zhang ◽  
B. Dong ◽  
Q. Bai
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Deficit Irrigation ◽  
Biomass Accumulation ◽  
Growing Season ◽  
Radiation Use Efficiency ◽  
Area Index ◽  
Irrigation Regimes ◽  
Use Efficiency ◽  
Radiation Use

To better understand the potential for improving biomass accumulation and radiation use efficiency (RUE) of winter wheat under deficit irrigation regimes, in 2006–2007 and 2007–2008, an experiment was conducted at the Luancheng Experimental Station of Chinese Academy of Science to study the effects of deficit irrigation regimes on the photosynthetic active radiation (PAR), biomass accumulation, grain yield, and RUE of winter wheat. In this experiment, field experiment involving winter wheat with 1, 2 and 3 irrigation applications at sowing, jointing, or heading stages was conducted, and total irrigation water was all controlled at 120 mm. The results indicate that irrigation 2 or 3 times could help to increase the PAR capture ratio in the later growing season of winter wheat; this result was mainly due to the changes in the vertical distributions of leaf area index (LAI) and a significant increase of the LAI at 0–20 cm above the ground surface (LSD, <i>P</i> < 0.05). Compared with irrigation only once during the growing season of winter wheat, irrigation 2 times significantly (LSD, <i>P</i> < 0.05) increased aboveground dry matter at maturity; irrigation at sowing and heading or jointing and heading stages significantly (LSD, <i>P</i> < 0.05) improved the grain yield, and irrigation at jointing and heading stages provided the highest RUE (0.56 g/mol). Combining the grain yield and RUE, it can be concluded that irrigation at jointing and heading stages has higher grain yield and RUE, which will offer a sound measurement for developing deficit irrigation regimes in North China.

scholarly journals Radiation use efficiency and yield of winter wheat under deficit irrigation in North Chin

2008 ◽  
Vol 54 (No. 7) ◽  
pp. 313-319 ◽  
Author(s):  
H. Han ◽  
Z. Li ◽  
T. Ning ◽  
X. Zhang ◽  
Y. Shan ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Deficit Irrigation ◽  
North China ◽  
Radiation Use Efficiency ◽  
Area Index ◽  
Significant Difference ◽  
Use Efficiency ◽  
Jointing Stage ◽  
Radiation Use

Water stress is a frequent and critical limit to wheat (<I>Triticum aestivum</I> L.) production in North China. It has been shown that photosynthetic active radiation (PAR) is closely related to crop production. An experiment was conducted to investigate the effects of deficit irrigation and winter wheat varieties on the PAR capture ration, PAR utilization and grain yield. Field experiments involved Jimai 20 (J; high yield variety) and Lainong 0153 (L; dryland variety) with non-irrigation and irrigated at jointing stage. The results showed that whether irrigated at jointing stage or not, there was no significant difference between J and L with respect to the amount of PAR intercepted by the winter wheat canopies. However, significant differences were observed between the varieties with respect to the amount of PAR intercepted by plants that were 60–80 cm above the ground surface. This result was mainly caused by the changes in the vertical distributions of leaf area index (LAI). As a result, the effects of the varieties and deficit irrigation on the radiation use efficiency (RUE) and grain yield of winter wheat were due to the vertical distribution of PAR in the winter wheat canopies. During the late growing season of winter wheat, irrespective of the irrigation regime, the RUE and grain yield of J were significantly (LSD, <I>P</I> < 0.05) higher than those of L. These results suggest that a combination of deficit irrigation and a suitable winter wheat variety should be applied in North China.

Radiation Use Efficiency and Yield Response of Winter Wheat to Planting Patterns and Irrigation in Northern China

2014 ◽  
Vol 106 (1) ◽  
pp. 168-174 ◽  
Author(s):  
Y. Y. Han ◽  
G. Y. Wang ◽  
X. B. Zhou ◽  
Y. H. Chen ◽  
P. Liu
Keyword(s):  
Winter Wheat ◽  
Northern China ◽  
Radiation Use Efficiency ◽  
Yield Response ◽  
Use Efficiency ◽  
Radiation Use

scholarly journals Double-Double Row Planting Mode at Deficit Irrigation Regime Increases Winter Wheat Yield and Water Use Efficiency in North China Plain

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1315
Author(s):  
Xun Bo Zhou ◽  
Guo Yun Wang ◽  
Li Yang ◽  
Hai Yan Wu
Keyword(s):  
Winter Wheat ◽  
Soil Water ◽  
Water Use ◽  
Deficit Irrigation ◽  
Water Status ◽  
Row Spacing ◽  
Soil Water Depletion ◽  
Double Row ◽  
Water Depletion ◽  
Use Efficiency

Low water availability coupled with poor planting method has posed a great challenge to winter wheat (Triticum aestivum L.) productivity. To improve productivity and water use efficiency (WUE) under deficit irrigation, an effective water-saving technology that is characterized by three planting modes has been developed (uniform with 30-cm row spacing (U), double-double row spacing of 5 cm (DD), and furrow-ridge row spacing of alternated 20 cm and 40 cm (F)) combined with three irrigation regimes (50 mm water each at growth stage 34 (GS34) and GS48 (W1), and 100 mm water at GS48 (W2), or 100 mm each water at GS34 and GS48 (W3)). Results showed that DD increased yield by 9.7% and WUE by 12.6% due to higher soil water status and less soil water depletion and evapotranspiration compared with U. Although the soil water status, soil water depletion, evapotranspiration, and yield increased with increasing irrigation amount, more soil water depletion and evapotranspiration resulted in low WUE. The deficit irrigation was beneficial for improving WUE as W1 had significantly increased yield by 5.4% and WUE by 7.1% compared with W2. Yield and evapotranspiration showed a quadratic dynamic equation indicating that yield increased with increasing evapotranspiration. Considering WUE and relatively higher yield under deficit water, W1 combined with DD is suggested to be a good management strategy to be applied in winter wheat of water-scarce regions.

Effect of delayed irrigation at jointing stage on canopy temperature and leaf Water use efficiency of winter wheat in wide-precision planting pattern

2015 ◽  
Vol 35 (15) ◽  
Author(s):  
朗坤 LANG Kun ◽  
刘泉汝 LIU Quanru ◽  
卞城月 BIAN Chengyue ◽  
刘馨惠 LIU Xinhui ◽  
李全起 LI Quanqi
Keyword(s):  
Winter Wheat ◽  
Water Use Efficiency ◽  
Water Use ◽  
Canopy Temperature ◽  
Leaf Water ◽  
Planting Pattern ◽  
Use Efficiency ◽  
Jointing Stage ◽  
Precision Planting

scholarly journals Scheduling Regulated Deficit Irrigation with Leaf Water Potential of Cherry Tomato in Greenhouse and its Effect on Fruit Quality

Agriculture ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 669
Author(s):  
Leontina Lipan ◽  
Hanán Issa-Issa ◽  
Alfonso Moriana ◽  
Noemí Medina Zurita ◽  
Alejandro Galindo ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Deficit Irrigation ◽  
Water Status ◽  
Irrigation Scheduling ◽  
Leaf Water ◽  
Soluble Solids ◽  
Regulated Deficit Irrigation ◽  
Randomized Design ◽  
Water Scarce

The tomato cultivated surface is one of the most important surfaces in the world. This crop needs a sufficient and continuous supply of water during vegetative growth. Therefore, production may be at risk in warm and water-scarce areas. Therefore, the implementation of irrigation alternatives such as regulated deficit irrigation (RDI) is of great importance to reduce the use of water and improve the production of the quality of tomatoes. The objective of this work was to evaluate the deficit irrigation scheduling using plant water status as a tool in deficit irrigation. Experimental design was a randomized design with four replications per treatment. Two irrigation treatments were applied: Control (125% of crop evapotranspiration (ETc)) and Regulated Deficit Irrigation (RDI). This latter treatment considered different threshold values of midday leaf water depending on crop phenological stage. No differences were observed in yield, with RDI treatment being more efficient in the use of irrigation water than the control. Besides, RDI tomatoes presented, in general, greater weight, size, Total soluble solids (TSS), sugars, antioxidant activity, lycopene, β-Carotene, and redder color with more intense tomatoes flavor. Finally, it might be said that RDI strategy helped to reduce 53% of irrigation water and to improve the nutritional, functional, and sensory quality of tomatoes.

scholarly journals Light interception and radiation use efficiency response to tridimensional uniform sowing in winter wheat

2018 ◽  
Vol 17 (3) ◽  
pp. 566-578 ◽  
Author(s):  
Zhi-qiang TAO ◽  
De-mei WANG ◽  
Shao-kang MA ◽  
Yu-shuang YANG ◽  
Guang-cai ZHAO ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Light Interception ◽  
Radiation Use Efficiency ◽  
Use Efficiency ◽  
Radiation Use
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