Effects of supplemental irrigation on the accumulation, partitioning, and remobilization of nitrogen, yield and water use efficiency of wheat cultivars

Moradi, L Ali; Siosemardeh, Adel; Sohrabi, Yousef; Bahramnejad, Bahman; Hosseinpanahi, Farzad

doi:10.1080/01904167.2022.2068434

Cited by 2 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Water deficiency during grain filling causes early senescence, reduces photosynthesis, and shortens the grain filling stage (Farooq et al, 2014;Zhang et al, 2019). Supplemented irrigation may be required during the bolting and seed-filling stages (Oweis and Hachum, 2009;Moradi et al, 2022). Insufficient and irregular rainfall in terms of optimum plant growth in regions located in arid and semi-arid climatic zones poses a great risk to wheat farming (Langridge and Reynolds, 2021).…”

Section: Introductionmentioning

confidence: 99%

QUALITY PERFORMANCE OF DURUM WHEAT (Triticum durum L.) GERMPLASM UNDER RAINFED AND IRRIGATED FIELD CONDITIONS

KÖKEN

Demirel

Çalışkan

et al. 2023

Turkish Journal of Field Crops

View full text Add to dashboard Cite

Wheat is usually grown as a rainfed crop, and no irrigation is applied in most production fields. This study was undertaken to evaluate to quality characteristics of durum wheat germplasm in three different environments under rainfed and irrigated field conditions during 2019-2020, 2020-2021 and 2021-2022 growing seasons. Supplemental irrigations (SI) were applied during critical vegetative stages (spiking and grain filling) in irrigated treatments while plants only received water from natural rainfall in rainfed treatments. Field experiments were performed in a 12x12 Alpha Lattice design with two replications. Grain protein content (GPC), starch content, wet gluten content and test weight were examined for one hundred and twenty-five durum wheat genotypes which consist of fifty-one local cultivars, twenty-one foreign cultivars, forty-four gene bank landraces (ex situ) and fifteen landraces (in situ). SI resulted in decrease in GPC and wet gluten content but increase in starch content. Ex situ landraces (17.48%) and in situ landraces (16.62%) had higher GPC mean values under both rainfed and irrigated conditions in 2019/2020 and 2020/2021 growing seasons. Correlation coefficient was 0.90 between GPC-wet gluten content while it was -0.82 and -073 between starch content-GPC and starch content-wet gluten content, respectively. The effect of SI was more evident in local and foreign cultivars in all three environments compared to landraces. Our results indicated that ex situ landraces has a great potential in terms of grain quality characteristics. The high genotypic diversity and improved quality characteristics in landraces provided extensive insights for future studies to improve crop quality in areas with limited irrigation opportunities.

show abstract

Section: Introductionmentioning

confidence: 99%

QUALITY PERFORMANCE OF DURUM WHEAT (Triticum durum L.) GERMPLASM UNDER RAINFED AND IRRIGATED FIELD CONDITIONS

KÖKEN

Demirel

Çalışkan

et al. 2023

Turkish Journal of Field Crops

View full text Add to dashboard Cite

show abstract

Effect of Delayed Irrigation at the Jointing Stage on Nitrogen, Silicon Nutrition and Grain Yield of Winter Wheat in the North China Plain

Zheng,

Sun,

Liang

et al. 2024

Plants

View full text Add to dashboard Cite

Water scarcity is a key limitation to winter wheat production in the North China Plain, and it is essential to explore the optimal timing of spring irrigation to optimize N and Si uptake as well as to safeguard yields. The aim of this study was to systematically study the effect mechanism of nitrogen and silicon absorption of winter wheat on yield under spring irrigation and to provide a scientific basis for optimizing irrigation strategy during the growth period of winter wheat. In this experiment, the winter wheat ‘Heng 4399’ was used. Five irrigation periods, i.e., 0 d (CK), 5 d (AJ5), 10 d (AJ10), 15 d (AJ15), and 20 d (AJ20) after the jointing stage, were set up to evaluate the nitrogen (N) and silicon (Si) absorption and grain yield (GY). The results showed that delayed irrigation for 5–10 days at the jointing stage had increased the GY. With the delay of irrigation time, the N/Si content of the entire plant at the maturity period increased first and then decreased; among that, the maximum N contents appeared in AJ15 and AJ5 in 2015 and 2020, respectively, while the Si concentrations appeared in AJ5 and AJ10 in sequence. Compared with AJ15 and AJ20, the N accumulation of vegetative organs in AJ5 increased by 3.05~23.13% at the flowering stage, 14.12~40.12% after the flowering stage, and a 1.76~6.45% increase in the N distribution rate at maturity stage. A correlation analysis revealed that the GY was significantly and positively correlated with the N/Si accumulation at the anthesis and N translocation after the anthesis stage. In conclusion, under limited irrigation conditions, delaying watering for 5 to 10 days at the jointing stage can improve the nitrogen and silicon absorption and nutrient status of wheat plants and increase wheat yield.

show abstract

Effects of supplemental irrigation on the accumulation, partitioning, and remobilization of nitrogen, yield and water use efficiency of wheat cultivars

Cited by 2 publications

References 34 publications

QUALITY PERFORMANCE OF DURUM WHEAT (Triticum durum L.) GERMPLASM UNDER RAINFED AND IRRIGATED FIELD CONDITIONS

QUALITY PERFORMANCE OF DURUM WHEAT (Triticum durum L.) GERMPLASM UNDER RAINFED AND IRRIGATED FIELD CONDITIONS

Effect of Delayed Irrigation at the Jointing Stage on Nitrogen, Silicon Nutrition and Grain Yield of Winter Wheat in the North China Plain

Contact Info

Product

Resources

About