Risk assessment of freezing injury during overwintering of wheat in the northern boundary of the Winter Wheat Region in China

Freezing injury is one of the main restriction factors for winter wheat production, especially in the northern part of the Winter Wheat Region in China. It is very important to assess the risk of winter wheat-freezing injury. However, most of the existing climate models are complex and cannot be widely used. In this study, Zunhua which is located in the northern boundary of Winter Wheat Region in China is selected as research region, based on the winter meteorological data of Zunhua from 1956 to 2016, seven freezing disaster-causing factors related to freezing injury were extracted to formulated the freezing injury index (FII) of wheat. Referring to the historical wheat-freezing injury in Zunhua and combining with the cold resistance identification data of the National Winter Wheat Variety Regional Test (NWWVRT), consistency between the FII and the actual freezing injury situation was tested. Furthermore, the occurrence law of freezing injury in Zunhua during the past 60 years was analyzed by Morlet wavelet analyze, and the risk of freezing injury in the short term was evaluated. Results showed that the FII can reflect the occurrence of winter wheat-freezing injury in Zunhua to a certain extent and had a significant linear correlation with the dead tiller rate of wheat (P = 0.014). The interannual variation of the FII in Zunhua also showed a significant downward trend (R2 = 0.7412). There are two cycles of freezing injury in 60 years, and it showed that there’s still exist a high risk in the short term. This study provides reference information for the rational use of meteorological data for winter wheat-freezing injury risk assessment.

Download Full-text

Winter Wheat Variety Test

10.31274/farmprogressreports-180814-1163 ◽

2007 ◽

Author(s):

Ronald Skrdla ◽

Jean-Luc Jannink

Keyword(s):

Winter Wheat ◽

Wheat Variety ◽

Winter Wheat Variety

Download Full-text

Faculty Opinions recommendation of Multimarker strategy for short-term risk assessment in patients with dyspnea in the emergency department: the MARKED (Multi mARKer Emergency Dyspnea)-risk score.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.717961622.793464393 ◽

2012 ◽

Author(s):

Gad Cotter ◽

Olga Milo

Keyword(s):

Risk Assessment ◽

Emergency Department ◽

Risk Score ◽

Short Term

Download Full-text

Spatiotemporal characteristics and risk assessment of agricultural drought disasters during the winter wheat-growing season on the Huang-Huai-Hai Plain, China

Theoretical and Applied Climatology ◽

10.1007/s00704-020-03506-8 ◽

2021 ◽

Author(s):

Zhenghua Hu ◽

Zhurong Wu ◽

A. R. M. Towfiqul Islam ◽

Xinyuan You ◽

Chao Liu ◽

...

Keyword(s):

Risk Assessment ◽

Winter Wheat ◽

Growing Season ◽

Agricultural Drought ◽

Spatiotemporal Characteristics

Download Full-text

The value of meteorological data in marine risk assessment

Reliability Engineering & System Safety ◽

10.1016/j.ress.2021.107480 ◽

2021 ◽

Vol 209 ◽

pp. 107480

Author(s):

Roar Adland ◽

Haiying Jia ◽

Tønnes Lode ◽

Jørgen Skontorp

Keyword(s):

Risk Assessment ◽

Meteorological Data

Download Full-text

Can Long-Term Experiments Predict Real Field N and P Balance and System Sustainability? Results from Maize, Winter Wheat, and Soybean Trials Using Mineral and Organic Fertilisers

Agronomy ◽

10.3390/agronomy11081472 ◽

2021 ◽

Vol 11 (8) ◽

pp. 1472

Author(s):

Ilaria Piccoli ◽

Felice Sartori ◽

Riccardo Polese ◽

Maurizio Borin ◽

Antonio Berti

Keyword(s):

Winter Wheat ◽

Nutrient Balance ◽

Environmental Indicators ◽

Nutrient Loss ◽

Real Field ◽

Short Term ◽

Organic Fertiliser ◽

Long Term Experiments ◽

P Balance

Agri-environmental indicators such as nutrient balance may play a key role in soil and water quality monitoring, although short-term experiments might be unable to capture the sustainability of cropping systems. Therefore, the objectives of this study are: (i) to evaluate the reliability of long-term experimental N and P balance estimates to predict real field (RF) (i.e., short-term transitory) conditions; and (ii) to compare the sustainability of short- and long-term experiments. The LTE-based predictions showed that crops are generally over-fertilised in RF conditions, particularly maize. Nutrient balance predictions based on the LTE data tended to be more optimistic than those observed under RF conditions, which are often characterised by lower outputs; in particular, 13, 44, and 47% lower yields were observed for winter wheat, maize, and soybean, respectively, under organic management. The graphical evaluation of N and P use efficiency demonstrated the benefit of adopting crop rotation practices and the risk of nutrient loss when liquid organic fertiliser was applied on a long-term basis. In conclusion, LTE predictions may depend upon specific RF conditions, representing potential N and P use efficiencies that, in RF, may be reduced by crop yield-limiting factors and the specific implemented crop sequence.

Download Full-text

Knee Injury Risk Assessment in Female High School Athletes Using Vibromyography

Medicine & Science in Sports & Exercise ◽

10.1249/01.mss.0000401848.33235.cd ◽

2011 ◽

Vol 43 (Suppl 1) ◽

pp. 667

Author(s):

Kenneth J. McLeod ◽

Rian Shams ◽

Josh Gannon

Keyword(s):

High School ◽

Risk Assessment ◽

Injury Risk ◽

Knee Injury ◽

High School Athletes ◽

Female High School

Download Full-text

Immediate and short-term impact of a brief motivational smoking intervention using a biomedical risk assessment: The Get PHIT trial

Nicotine & Tobacco Research ◽

10.1093/ntr/ntp004 ◽

2009 ◽

Vol 11 (4) ◽

pp. 394-403 ◽

Cited By ~ 11

Author(s):

Jennifer B. McClure ◽

Evette Ludman ◽

Lou Grothaus ◽

Chester Pabiniak ◽

Julie Richards ◽

...

Keyword(s):

Risk Assessment ◽

Short Term ◽

Smoking Intervention

Download Full-text

Injury risk assessment based on pre-crash variables: The role of closing velocity and impact eccentricity

Accident Analysis & Prevention ◽

10.1016/j.aap.2020.105864 ◽

2021 ◽

Vol 150 ◽

pp. 105864

Author(s):

Michelangelo-Santo Gulino ◽

Leonardo Di Gangi ◽

Alessio Sortino ◽

Dario Vangi

Keyword(s):

Risk Assessment ◽

Injury Risk

Download Full-text

Non-Invasive Monitoring of the Light-Induced Cyclic Photosynthetic Electron Flow during Cold Hardening in Wheat Leaves

Zeitschrift für Naturforschung C ◽

10.1515/znc-2006-9-1021 ◽

2006 ◽

Vol 61 (9-10) ◽

pp. 734-740 ◽

Cited By ~ 15

Author(s):

Simona Apostol ◽

Gabriella Szalai ◽

László Sujbert ◽

Losanka P. Popova ◽

Tibor Janda

Keyword(s):

Winter Wheat ◽

Electron Flow ◽

Wheat Variety ◽

Fluorescence Induction ◽

Chlorophyll Fluorescence Induction ◽

Light Conditions ◽

Non Invasive ◽

Photosynthetic Electron Flow ◽

Temperature Hardening ◽

Wheat Leaves

AbstractThe effect of irradiance during low temperature hardening was studied in a winter wheat variety. Ten-day-old winter wheat plants were cold-hardened at 5 °C for 11 days under light (250 μmol m-2 s-1) or dark (20 μmol m-2 s-1) conditions. The effectiveness of hardening was significantly lower in the dark, in spite of a slight decrease in the Fv/Fm chlorophyll fluorescence induction parameter, indicating the occurrence of photoinhibition during the hardening period in the light. Hardening in the light caused a downshift in the far-red induced AG (afterglow) thermoluminescence band. The faster dark re-reduction of P700+, monitored by 820-nm absorbance, could also be observed in these plants. These results suggest that the induction of cyclic photosynthetic electron flow may also contribute to the advantage of frost hardening under light conditions in wheat plants.

Download Full-text