Designing high-yielding wheat crops under late sowing: a case study in southern China

Liu, Ke; Harrison, Matthew T.; Wang, Bin; Yang, Rui; Yan, Haoliang; Zou, Juan; Liu, De Li; Meinke, Holger; Tian, Xiaohai; Ma, Shangyu; Zhang, Yunbo; Man, Jianguo; Wang, Xiaoyan; Zhou, Meixue

doi:10.1007/s13593-022-00764-w

Cited by 21 publications

(9 citation statements)

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“…We found that low Se concentration increased the SPAD value of sweet potato seedling leaves, consistent with this study, low Se concentration increased the chlorophyll content of lettuce ( Xue et al, 2001 ; Liu et al, 2022 ). Hawrylak-Nowak (2009) reported that the increase in chlorophyll content due to the effective scavenging of reactive oxygen species (ROS) caused by the addition of Se.…”

Section: Discussionsupporting

confidence: 91%

Effects of Selenium on Growth and Selenium Content Distribution of Virus-Free Sweet Potato Seedlings in Water Culture

et al. 2022

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Understanding the selenium tolerance of different sweet potato [Dioscorea esculenta (Lour.) Burkill] is essential for simultaneously for breeding of new selenium-tolerant varieties and improving the selenium content in sweet potato. Therefore, a greenhouse experiment was conducted from February to April 2022 to evaluate the effect of sweet potato cultivars and selenium (Na2SeO3) concentrations (0–40 mg/L) on plant growth, physiological activities and plant selenium content distribution. The results showed that when the selenium concentration was more than 3 mg/L, the plant growth was significantly affected and the plant height and root length were significantly different compared to the control. While the selenium concentration was 20 and 40 mg/L had the greatest effect on plant growth when the number of internodes and leaves of the plant decreased, the root system stopped growing and the number of internodes of the plant, the number of leaves and the dry-to-fresh weight ratio of the plant a very significant level compared to reached control. The relative amount of chlorophyll in leaves under treatment with a selenium concentration of 1 mg/L was increased, and the relative amount of chlorophyll in 3 mg/L leaves gradually increased with the increase in the selenium concentration. The values of the maximum photochemical efficiency PSII (fv/fm) and the potential activity of PSII (fv/fo) compared to the control under treatment with 40 mg/L selenium concentration and photosynthesis of plants was inhibited. The selenium content in root, stem and leaf increased with the increase in selenium concentration, and the distribution of selenium content in the plant was leaf <stem <root, and the selenium content in root was significantly higher than that in stem and leaf. In summary, the appropriate concentration of selenium tolerance has been determined to be 3 mg/L. The aquatic culture identification method of selenium tolerance of sweet potatoes and growth indices of various selenium tolerant varieties (lines) established in this study will provide a technical basis for selenium tolerant cultivation and mechanism research.

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Section: Discussionsupporting

confidence: 91%

Effects of Selenium on Growth and Selenium Content Distribution of Virus-Free Sweet Potato Seedlings in Water Culture

et al. 2022

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“…First, while tiller number determines canopy densities during early development, not all tillers survive to maturation ( Davidson and Chevalier, 1990 ). The rate of the productive tiller development is regulated by manifold environmental factors, including soil temperature ( Thorne and Wood, 1987 ; Liu et al, 2022 ), soil water ( Tao et al, 2007 ), soil nutrient supply ( Longnecker et al, 1993 ; Scharf and Alley, 1993 ), and defoliation ( Harrison et al, 2012 ). For instance, Shang et al (2020) reported that adequate water supply at jointing stage can effectively reduce the tiller mortality and thus increase wheat yield.…”

Section: Introductionmentioning

confidence: 99%

Soybean Crops Penalize Subsequent Wheat Yield During Drought in the North China Plain

et al. 2022

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Contemporary wisdom suggests that inclusion of legumes into crop rotations benefit subsequent cereal crop yields. To investigate whether this maxim was generically scalable, we contrast summer soybean–winter wheat (SW) with summer maize–winter wheat (MW) rotation systems in an extensive field campaign in the North China Plain (NCP). We identify heretofore unseen interactions between crop rotation, synthetic N fertilizer application, and stored soil water. In the year with typical rainfall, inclusion of soybean within rotation had no effect on wheat ear number and yield, while N fertilization penalized wheat yields by 6–8%, mainly due to lower dry matter accumulation after anthesis. In contrast, in dry years prior crops of soybean reduced the rate and number of effective ears in wheat by 5–27 and 14–17%, respectively, leading to 7–23% reduction in wheat yield. Although N fertilization increased the stem number before anthesis in dry years, there was no corresponding increase in ear number and yield of wheat in such years, indicating compensating reduction in yield components. We also showed that N fertilization increased wheat yield in MW rather than SW as the former better facilitated higher dry matter accumulation after flowering in dry years. Taken together, our results suggest that soybean inclusion reduced soil available water for subsequent wheat growth, causing yield penalty of subsequent wheat under drought conditions. We call for more research into factors influencing crop soil water, including initial state, crop water requirement, and seasonal climate forecasts, when considering legumes into rotation systems. Graphical AbstractResponse of wheat population and yield to soybean inclusion under limited-irrigation.

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“…A better understanding of GEI is helpful to evaluate genotype stability and adaptability across environments, recommend certain genotypes for specific growing environments, and assess the ability of test environments to discriminate the tested genotypes (Yan and Tinker, 2006;Dias et al, 2018). Several models of stability analysis are provided to elucidate the complex nature of GEI phenomena under stressed environments (Mafouasson et al, 2018;Liu et al, 2022) and to utilize the obtained information for varietal selection (Kang, 1998;Liu et al, 2020a). These models include joint regression analysis (Finlay and Wilkinson, 1963;Eberhart and Russell, 1966), the additive main effects and multiplicative interaction (AMMI) (Gauch, 1992), and the genotype main effects and genotype × environment interaction (GGE) biplot analysis (Yan et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Genotype by Environment Interaction on Tropical Maize Hybrids Under Normal Irrigation and Waterlogging Conditions

Azrai

Efendi

Muliadi

et al. 2022

Front. Sustain. Food Syst.

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Unpredictable rainfall in the tropics often increases the risk of waterlogging or even flooding in agricultural lands, hindering the efforts to fulfill maize demands. Breeding maize for waterlogging tolerance is necessary yet challenging since performing varietal testing on a set of hybrids might be biased toward the presence of genotype and environment interaction (GEI). This study aimed to elucidate the GEI effects on yield and related agronomic traits of tropical maize hybrids under normal irrigation and waterlogging conditions and to assess the adaptability of these hybrids in such conditions using several stability models. Ten hybrids including two commercial checks were evaluated across 14 environments under normal and waterlogging conditions in Indonesia from 2018 to 2020. Waterlogging imposed at the V6 stage for ten consecutive days significantly hampered the plant height and ear height, slightly delayed flowering dates, and reduced yield and yield components. The genotype, location, and genotype by location effects were significant on yield, but the genotype by waterlogging effect was not. Stress tolerance index is highly significantly correlated (p < 0.01) with yield in both normal (r = 0.90) and waterlogging (r = 0.96) conditions. The GGE biplot analysis on yield revealed five sectors, two mega-environments, and five vertex genotypes. This study indicated the possibility of breeding maize hybrids tolerant to waterlogging (G05), as well as high-yielding hybrids under both conditions (G07).

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Designing high-yielding wheat crops under late sowing: a case study in southern China

Cited by 21 publications

References 50 publications

Effects of Selenium on Growth and Selenium Content Distribution of Virus-Free Sweet Potato Seedlings in Water Culture

Effects of Selenium on Growth and Selenium Content Distribution of Virus-Free Sweet Potato Seedlings in Water Culture

Soybean Crops Penalize Subsequent Wheat Yield During Drought in the North China Plain

Genotype by Environment Interaction on Tropical Maize Hybrids Under Normal Irrigation and Waterlogging Conditions

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