Comprehensive and quantitative analysis of growth characteristics of winter wheat in China based on growing degree days

Liu, Yunhe; Su, Lijun; Wang, Quanjiu; Zhang, Jihong; Shan, Yongkui; Deng, Mingjiang

doi:10.1016/bs.agron.2019.07.007

Cited by 33 publications

(24 citation statements)

References 55 publications

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“…GDDs represent the sum of degrees over a temperature threshold in a defined period of time [ 27 ]. According to studies performed on crops such as wheat and corn, GDDs represent the amount of heat required by the crops in order to develop [ 28 , 29 ]. Therefore, GDDs could be perceived as a means to describe the duration of the biological cycle of the crop.…”

Section: Introductionmentioning

confidence: 99%

Reintroducing Flax (Linum usitatissimum L.) to the Mediterranean Basin: The Importance of Nitrogen Fertilization

Kakabouki

Mavroeidis

Tataridas

et al. 2021

Plants

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An increasing interest has been reported regarding the reintroduction of flax in the Mediterranean region. The aim of this present study was to evaluate the effects of nitrogen (N) fertilization on the performance of flax cv. Everest, under Mediterranean climate conditions. A two-year study was carried out in 2018–2019, in Western Greece. The experiment was set-up in a randomized complete block design with four replications and six treatments of different N fertilization rates (0, 20, 30, 40, 50, and 60 kg N ha−1). Measurements included plant biomass, the leaf area index (LAI), the yield, and the Growth Degree Days (GDDs) required for full seed maturity. The N uptake of flax was also evaluated utilizing the Nitrogen Harvesting (NHI) and Nitrogen Utilization Efficiency (NUtE) indices. Although the highest fertilization rate (60N) increased the yield by 35.4% (2018) and 23.1% (2019), a GDDs and N indices assessment revealed that it noted the lowest efficiency and may lead to significant yield losses, as it significantly prolonged the crop cycle. On the contrary, even though fertilization rates of 20 and 30 kg N ha−1 increased the yield only by 7% and 15% (on average), they were more efficient, and prolonged the crop cycle less (compared to 60N).

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Section: Introductionmentioning

confidence: 99%

Reintroducing Flax (Linum usitatissimum L.) to the Mediterranean Basin: The Importance of Nitrogen Fertilization

Kakabouki

Mavroeidis

Tataridas

et al. 2021

Plants

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“…GDDs index play a key role in predicting the phenophasic duration for each crop, and therefore crop productivity [21]. According to Liu et al (2012), GDDs represent the amount of heat that is required by the crops in order to develop [22]. In addition, GDDs index is used to quantify the effects of temperature as well as to describe the duration of biological processes [23].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, GDDs are used for determining the o sown date, growth period, and the crops' physiological characteristics [19,24,25]. In several studies, GDDs have been used to also define crop development models for local areas [22]. Regarding the relationship between head appearance and temperature in cereal cultivation, flowering has a critical threshold.…”

Section: Introductionmentioning

confidence: 99%

Performance of Six Genotypes of Tritordeum Compare to Bread Wheat under East Mediterranean Condition

Kakabouki

Beslemes²,

Tigka

et al. 2020

Sustainability

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Four advanced tritordeum lines were studied and compared to two commercial varieties of tritordeum and wheat cultivars in yield and quality features, in Greece. For this purpose, a two-year experiment was established in the Greek territory. The field experiment was set up in Randomized Complete Block Design (RCBD) with blocks, with different lines and varieties. Head emergence was calculated based on Growing Degree Days (GDDs), which was significantly affected by the year. The significance of differences between treatments was estimated by using Fisher’s least significant difference (LSD) test with significance level p = 0.05. The weight of 1000 seeds of the two commercial varieties differed from the equivalent weight of 1000 seeds of tritordeum lines, approximately 1 g. Yield was significantly affected by lines/varieties and year. Compared to tritordeum yield, wheat yield marked the highest values. This difference was almost 2 kg ha−1. Gluten content was significantly affected by lines/varieties. The highest gluten content was firstly noticed at wheat GENESIS (34.2%) variety and secondly at tritordeum Aucan (33.2%) variety. Protein was higher in tritordeum lines HT-1704 (15.5%), HT-1707 (15.1%) and Aucan variety (15.2%) during the first experimental year. Tritordeum seems to have significant adaptability to dry conditions in Greece and significant yields compared to the existing commercial varieties and bread wheat.

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“…However, each crop has minimum and maximum threshold temperatures within which the crop continues to develop; in the case of oat, the minimum and maximum temperatures are 5 and 30 °C, respectively (Servin et al, 2018). The GDDs were calculated as the difference between the average daily temperature and the minimum threshold temperature -the base temperature required by the crop (Liu et al, 2020).…”

Section: Variablesmentioning

confidence: 99%

“…In addition, daytime temperatures are related to the duration of the crop cycle, since the thermal sum during this period (unit of measure: Growing Degree Days or GDD) determines the period from sowing to ripening. This period can differ from one year to another, while the thermal sum remains relatively stable within the same region (Liu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Thermal sum in the determination of the phenological stages of Chihuahua and Cuauhtémoc oats in Güémez Tamaulipas

Lucio-Ruiz

Joaquín-Cancino²,

Garay-Martínez³

et al. 2022

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Objective: To determine the thermal sum requirements in degrees days of development (GDD) of the varieties of Avena sativa, Cuauhtémoc and Chihuahua by phenological stage and its effect on the accumulation of total forage and by morphological component in Güémez, Tamaulipas. Design/methodology/approach: The sowing was carried out in plots of 6×6 m and four repetitions of the Cuauhtémoc and Chihuahua varieties through the mechanized preparation of the land, with doses of 120 kg ha-1 of seed and, subsequently, irrigation and fertilization work was carried out. The treatments were made up of the two varieties and six phenological stages (Zadoks scale: Z2, Z3, Z4, Z7, Z8, Z9) in a random complete block design. Results: It was found that, the months of November to March allow to obtain 1923.5 and 1831.5 GDD as a requirement of the crop to complete the biological cycle of the Chihuahua and Cuauhtémoc varieties. Yields by morphological component depended on the observed phenological stage and the highest leaf yield was obtained with 2.7 and 3.6 t ha-1 in Cuauhtémoc and Chihuahua, respectively (P<0.05) in stage Z3, with an accumulation of 1032 and 980 GDD in the stem elongation stage. Limitations on study/implications: These results are applicable only for the evaluation area, because they are physiological responses where the environment intervenes. Findings/conclusions: In Güémez, Tamaulipas, the Chihuahua oat variety requires 1923.5 GDD to complete the biological cycle, while Cuauhtémoc 1831.5 GDD. The difference between the thermal accumulation of the varieties and the phenological stages has an impact on the total forage yield and by morphological component.

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Comprehensive and quantitative analysis of growth characteristics of winter wheat in China based on growing degree days

Cited by 33 publications

References 55 publications

Reintroducing Flax (Linum usitatissimum L.) to the Mediterranean Basin: The Importance of Nitrogen Fertilization

Reintroducing Flax (Linum usitatissimum L.) to the Mediterranean Basin: The Importance of Nitrogen Fertilization

Performance of Six Genotypes of Tritordeum Compare to Bread Wheat under East Mediterranean Condition

Thermal sum in the determination of the phenological stages of Chihuahua and Cuauhtémoc oats in Güémez Tamaulipas

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