Developing functional relationships between temperature and cover crop species vegetative growth and development

Munyon, Jay; Bheemanahalli, Raju; Walne, Charles Hunt; Reddy, K. Raja

doi:10.1002/agj2.20537

Cited by 10 publications

(13 citation statements)

References 74 publications

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“…However, there was not much difference among the genotypes growing at optimum and high temperatures. Similar to the root observations in this study, reduction or increase in temperature depressed root growth, such as root tips (Figure 3A) [47,48].…”

Section: Root Growth and Developmentsupporting

confidence: 88%

“…These are useful characteristics for nutrient uptake efficiency and performance under various stress conditions, including temperature [46]. The roots are the most sensitive part of the plant to temperature [47]. Therefore, we evaluated the root phenotypic responses of the 64 rice genotypes, intending to identify those with synergistic or antagonistic responses to low and high temperatures.…”

Section: Root Growth and Developmentmentioning

confidence: 99%

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Morpho-Physiological Characterization of Diverse Rice Genotypes for Seedling Stage High- and Low-Temperature Tolerance

et al. 2021

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Extreme temperatures are considered one of the main constraints that limit the growth and development of rice. We elucidated the root and shoot developmental plasticity of 64 rice genotypes during early seedling establishment, using the sunlit plant growth chambers at 22/14 (low), 30/22 (optimum), and 38/30 °C (high) day/night temperatures. Low temperature severely inhibited 23 traits, such as shoot (68%), root (57%), and physiological (35%) attributes. On the contrary, the high temperature positively affected most of the shoot (48%) and root (31%) traits, except root diameter and root/shoot ratio, compared with the optimum. Alternatively, leaf chlorophyll fluorescence-associated parameters declined under low (34%) and high (8%) temperatures. A weak correlation between cumulative high-temperature response index (CHTRI) and cumulative low-temperature response index (CLTRI) indicates the operation of different low- and high-temperature tolerance mechanisms at the early seedling stage. Groups of distinct rice genotypes associated with low or high-temperature tolerance were selected based on CHTRI and CLTRI. The genotypes that commonly performed well under low and high temperatures (IR65600-81-5-2-3, CT18593-1-7-2-2-5, RU1504114, RU1504122, Bowman, and INIA Tacuari) will be valuable genetic resources for breeders in developing early-season high- and low-temperature-tolerant genotypes for a broad range of both tropical and temperate rice-growing environments.

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Section: Root Growth and Developmentsupporting

confidence: 88%

Section: Root Growth and Developmentmentioning

confidence: 99%

Morpho-Physiological Characterization of Diverse Rice Genotypes for Seedling Stage High- and Low-Temperature Tolerance

et al. 2021

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“…The high temperature had no significant influence on the shoot biomass (leaf and stem weight, Table 2 ), but low-temperature treatment reduced the shoot weight by 55%. Likewise, studies of the same phenomena were noted in response to high temperatures in different crops ( Wijewardana et al, 2015 ; Munyon et al, 2021 ; Reddy et al, 2021 ). The percentage of total dry matter reduction under high temperature was less than 5%, which was 50% lesser than the percentage reduction under low temperature ( Table 2 ).…”

Section: Resultssupporting

confidence: 53%

“…A reduction in plant root development under low temperatures may be due to its limited ability to access or uptake moisture and nutrient ( Miedema, 1982 ). Suboptimal temperatures had similar damaging effects on root development in rice ( Reddy et al, 2021 ) and cover crops ( Munyon et al, 2021 ).…”

Section: Resultsmentioning

confidence: 99%

“…Temperature is an important abiotic stress factor that plays a dominant role in controlling plant growth and developmental processes. Plant species, and genotypes within species, vary in their sensitivity to temperature ( Munyon et al, 2021 ; Reddy et al, 2021 ). Several studies used variations in morpho-physiological and yield responses to evaluate stress tolerance in oilseed crops: canola ( Elferjani and Soolanayakanahally, 2018 ), peanut ( Arachis hypogaea L.) ( Kakani et al, 2002 ), and cotton ( Gossypium hirsutum ) ( Reddy et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

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Low- and High-Temperature Phenotypic Diversity of Brassica carinata Genotypes for Early-Season Growth and Development

et al. 2022

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Temperature is a major abiotic stress factor limiting plant growth and development during the early developmental stage. Information on carinata (Brassica carinata A. Braun) traits response to low and high temperatures is necessary for breeding or selecting genotypes suited for specific ecoregions, which is limited. In the present study, 12 carinata genotypes were evaluated under low (17/09°C), optimum (22/14°C), and high (27/19°C) day/night temperatures at the early developmental stage. This study quantified temperature effects on several physiological and morphological characteristics of 12-advanced carinata lines. High-temperature plants decreased (15%) the accumulation of flavonoids and increased the nitrogen balance index by 25%. Low-temperature treatment significantly inhibited the aboveground (plant height, leaf area, number, and shoot weight) and root (length, surface area, and weight) traits. Across all genotypes, the shoot weight decreased by 55% and the root weight by 49% under low temperature. On the other hand, the maximum proportion of biomass was partitioned to roots under low temperature than at the high temperature. A poor relationship (r2 = 0.09) was found between low- and high-temperature indices, indicating differences in trait responses and tolerance mechanisms. AX17004 and AX17009 with higher root to shoot ratios might be suitable for late planting windows or regions with low-temperature spells. The two genotypes (AX17015 and AX17005) accumulated higher biomass under low- and high-temperature treatments can be used for planting in later summer or early winter. The identified low- and high-temperature stress-tolerant carinata genotypes could be a valuable resource for increasing stress tolerance during the early developmental stage.

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Cover crop impacts on nitrogen losses and environmental damage cost

Johnson,

Roth,

Ruffatti

et al. 2024

Agriculture, Ecosystems & Environment

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Developing functional relationships between temperature and cover crop species vegetative growth and development

Cited by 10 publications

References 74 publications

Morpho-Physiological Characterization of Diverse Rice Genotypes for Seedling Stage High- and Low-Temperature Tolerance

Morpho-Physiological Characterization of Diverse Rice Genotypes for Seedling Stage High- and Low-Temperature Tolerance

Low- and High-Temperature Phenotypic Diversity of Brassica carinata Genotypes for Early-Season Growth and Development

Cover crop impacts on nitrogen losses and environmental damage cost

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