Primary Growth Parameters of Three Alfalfa Cultivars Adapted to Highland Climatic Conditions

Şeker, Hayati; Yolcu, Halil; Acikgoz, Esvet

doi:10.1111/jac.12105

Cited by 3 publications

(3 citation statements)

References 27 publications

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“…This trend is a result of the possible allocation of photoassimilates to reproductive structures in R plants at the beginning of plant development. The higher values of LAR in R plants at the end of the analyzed period indicated an adaptation for light interception compared to the S. The higher specific leaf area maximizes the light interception in R biotypes in the late stages of plant growth, when weeds should be competing with crops for light in the canopy closing (Bell 2005, Seker et al, 2015. Similar to the dry matter accumulation by plants, the NAR and LAR could be related to the competitive ability of weeds.…”

Section: Detection Of Resistance and Biotypes Developmentmentioning

confidence: 92%

“…This allocation could be explained by the need for more photosynthetic structures in R plants. The higher NAR that was observed in resistant plants indicates that the R biotype is more adapted to higher irradiance levels during the initial stages of growth because of its more efficient photosynthetic machinery (Shipley 2002, Shipley 2006, Seker et al, 2015.…”

Section: Detection Of Resistance and Biotypes Developmentmentioning

confidence: 98%

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Plant growth and genetic polymorphism in glyphosate-resistant sourgrass (Digitaria insularis L. Fedde)

Martins¹,

Barroso²,

Carvalho³

et al. 2016

Aust J Crop Sci

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Weed herbicide resistance has been a challenge in agriculture. The objective of this study was to detect sourgrass (Digitaria insularis (L.) Fedde) glyphosate-resistant plants and to evaluate the growth and polymorphism rate between the resistant and susceptible biotypes, as a subsidy for the integrated management of species. An experiment was conducted primarily for the detection of weed resistance using increasing doses of glyphosate to generate a dose-response curve. Then, an experiment consisting of eight treatments (destructives analysis of growth) and five replications was conducted to characterize and compare the phenological stages of each biotype. In addition to visual assessments, the dry weight and leaf area, absolute and relative growth rates, net assimilation rate and leaf area ratio of plants were determined. Finally, polymorphism among biotypes was determined using inter simple sequence repeat molecular markers. A resistant factor of 3.12 was found among the biotypes. The resistant biotype grew faster and was more robust than the susceptible biotype, arriving first to flowering. The resistant biotype was better adapted to light interception. The 25 inter simple sequence repeat molecular markers analysis showed a polymorphism rate of 56.6% among the analyzed biotypes.

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Section: Detection Of Resistance and Biotypes Developmentmentioning

confidence: 92%

Section: Detection Of Resistance and Biotypes Developmentmentioning

confidence: 98%

Plant growth and genetic polymorphism in glyphosate-resistant sourgrass (Digitaria insularis L. Fedde)

Martins¹,

Barroso²,

Carvalho³

et al. 2016

Aust J Crop Sci

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show abstract

“…As a whole, although they were recorded under different experimental conditions, these data are not far from the RGR performances of some alfalfa cultivars, which showed RGR between 20 and 30 mg/g/day [58]. Importantly, the RGR of A. portulacoides was also high in the absence of NaCl, thus resulting in its being adaptable to conventional agricultural lands.…”

Section: Productivity and Cultivabilitymentioning

confidence: 76%

Functional Food from Endangered Ecosystems: Atriplex portulacoides as a Case Study

Zanella

Vianello

2020

Foods

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Biodiversity is a reservoir of potential sources of novel food and feed ingredients with suitable compositions for the improvement of the diet and well-being of humans and farmed animals. The halophyte Atriplex portulacoides occurs in habitats that are exposed to seawater inundations, and shows biochemical adaptations to saline and oxidative stresses. Its composition includes long chain lipids, sterols, phenolic compounds, glutathione and carotenoids. These organic compounds and micronutrients, such as Fe, Zn, Co and Cu, make this plant suitable as an optimal functional food that is potentially able to reduce oxidative stress and inflammatory processes in humans and animals. Indeed, many of these compounds have a protective activity in humans against cardiovascular pathologies, cancer, and degenerative processes related to aging. The analysis of its history as food and forage, which dates back thousands of years, attests that it can be safely consumed. Here, the limits of its chemical and microbiological contamination are suggested in order to comply with the European regulations. The productivity of A. portulacoides in natural environments, and its adaptability to non-saline soils, make it a potential crop of high economic interest.

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Autumn dormancy regulates the expression of cas18, vsp and corF genes during cold acclimation of lucerne (Medicago sativa L.)

Liu

Yang

et al. 2016

Crop Pasture Sci.

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As a global forage legume, lucerne (alfalfa, Medicago sativa L.) is valuable for studying the evolutionary and ecological mechanisms of plant adaptation to freezing, owing to the characteristic of contrasting winter hardiness induced by autumn dormancy. Autumn-dormant lucerne plants often exhibit greater cold tolerance than non-dormant plants under natural field conditions. The study examined the autumn shoot growth of four diverse lucerne cultivars, and the influence of two sampling dates in late autumn, three sampling positions and four autumn-dormancy categories on cas18, vsp and corF gene transcripts during the first year of lucerne establishment. Results showed that in field-grown lucerne, non-dormant and highly non-dormant cultivars had greater shoot growth than a dormant cultivar in autumn. The level of transcripts of cas18 (which encodes a dehydrin-like protein) was highest in dormant cultivars and lowest in semi-dormant cultivars in both November and December; in particular, the cas18 transcripts in the crown remained highest in both November and December. The level of transcripts of vsp (which encodes vegetative storage protein) in all dormant cultivar tissues was highest in both November and December. In semi-dormant cultivars, the expression of vsp in the taproot increased compared with the lateral root and crown in November. The corF transcript in the dormant cultivar was markedly higher than in the semi-dormant cultivar and almost zero in the non-dormant and highly non-dormant cultivars. These results indicate that the significant impact of autumn dormancy and plant position on gene expression of cas18, vsp and corF occurring during autumn hardening, and continuing low temperatures, are likely to have significant consequences on lucerne productivity and its long-term persistence.

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Primary Growth Parameters of Three Alfalfa Cultivars Adapted to Highland Climatic Conditions

Cited by 3 publications

References 27 publications

Plant growth and genetic polymorphism in glyphosate-resistant sourgrass (Digitaria insularis L. Fedde)

Plant growth and genetic polymorphism in glyphosate-resistant sourgrass (Digitaria insularis L. Fedde)

Functional Food from Endangered Ecosystems: Atriplex portulacoides as a Case Study

Autumn dormancy regulates the expression of cas18, vsp and corF genes during cold acclimation of lucerne (Medicago sativa L.)

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