Plant development controls leaf area expansion in alfalfa plants competing for light

Baldissera, T. C.; Frak, Ela; Carvalho, Paulo César de Faccio; Louarn, Gaëtan

doi:10.1093/aob/mct251

Cited by 53 publications

(33 citation statements)

References 68 publications

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“…Increase in leaf area with the application of N, P and K in alone or in combinations have been reported in tomato by researchers viz. N (Varia et al, 1998), P (Basirat et al, 2011), N and P (Regina and Robert, 1991), N, P and K (Baldissera, 2004;Adekiya and Agbede, 2009). In potato, low P supply reduced total leaf area per plant (Balemi, 2009).…”

Section: Resuls and Discussionmentioning

confidence: 99%

Effect of plant spacing and fertility level on leaf area variation at different phenological stages of cape gooseberry (Physalisperuviana L.) grown in sodic soil

Ali

Singh

2017

JANS

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Vegetative and reproductive growth in cape gooseberry (Physalis peruviana L.) proceed concomitantly during the greater part of the life cycle thereby foliar traits (e.g. leaf area) become important in photosynthetic action of the plant. In present study, the leaf area variation in cape gooseberry was studied at five phenological stages i.e. , respectively) at 75 × 90 cm + NPK @ 100:80:80 kg ha -1 . These findings can be further helpful in leaf sclerophylly studies in cape gooseberry.

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Section: Resuls and Discussionmentioning

confidence: 99%

Effect of plant spacing and fertility level on leaf area variation at different phenological stages of cape gooseberry (Physalisperuviana L.) grown in sodic soil

Ali

Singh

2017

JANS

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“…Moreover, it is possible that single plant leaf measurements are more reliable than leaf measurements conducted in dense stands (i.e., canopy or plot situation) [39]. For example, LA components in alfalfa plants significantly differ as a direct result from stand density and light competition [40]. Similar factors may be in play for barley plants grown under light competition in a field-plot situation, thus, creating variable environmental factors (light competition and shading) that cause shoot and leaf growth variation.…”

Section: Genetic Background and Variance Analysismentioning

confidence: 99%

Barley Leaf Area and Leaf Growth Rates Are Maximized during the Pre-Anthesis Phase

Alqudah

Schnurbusch

2015

Agronomy

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Leaf developmental traits are an important component of crop breeding in small-grain cereals. Surprisingly, little is known about the genetic basis for the differences in barley (Hordeum vulgare L.) leaf development. The two barley row-type classes, i.e., two-and six-rowed, show clear-cut differences in leaf development. To quantify these differences and to measure the genetic component of the phenotypic variance for the leaf developmental differences in both row-type classes we investigated 32 representative spring barley accessions (14 two-and 18 six-rowed accessions) under three independent growth conditions. Leaf mass area is lower in plants grown under greenhouse (GH) conditions due to fewer, smaller, and lighter leaf blades per main culm compared to pot-and soil-grown field plants. Larger and heavier leaf blades of six-rowed barley correlate with higher main culm spike grain yield, spike dry weight, and harvest index; however, smaller leaf area (LA) in two-rowed barley can be attributed to more spikes, tillers, and biological yield (aboveground parts). In general, leaf growth rate was significantly higher between awn primordium and tipping stages. Moderate to very high broad-sense heritabilities (0.67-0.90) were found under all growth conditions, indicating that these traits are predominantly genetically controlled. In addition, our data suggests that GH conditions are suitable for studying leaf developmental traits. Our results also demonstrated that LA impacts single plant yield and can be reconsidered in future breeding programs. Six-rowed spike 1 (Vrs1) is the major determinate of barley row-types, the differences in leaf development between OPEN ACCESSAgronomy 2015, 5 108 two-and six-rowed barleys may be attributed to the regulation of Vrs1 in these two classes, which needs further testing.

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“…Resultados parecidos foram encontrado por Baldissera et al (2014), porém com Medicago sativa, em que a ramificação e área foliar foram afetadas pela competição por luz, que promove menor capacidade de captação de luz.…”

Section: Resultados E Discussõesunclassified

Competitive ability with weeds during the establishment of aries grass: morphological characteristics

Szymczak¹,

Schuster²,

Lustosa³

et al. 2016

Revista Ciência Agronômica

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-The aim of this research was to evaluate interspecific competition in Panicum maximum cv. Aries during the establishment period, studying the factors of shading and nitrogen levels. The levels of shading caused by the weeds ranged from 0% and 40% to 70% and 60% with no nitrogen and in the presence of nitrogen. Analyses were made of plant height, tiller dynamics, leaf area index (IAF), dry matter, senescent leaf material and relative competition intensity (ICR) in P. maximum cv. Aries when with weeds. The data were submitted to tests for homogeneity of variance and residual normality; analysis of variance (ANOVA), Tukey's mean difference test at 5% probability, and regression analysis were then carried out. The morphological and yield characteristics of P. maximum cv. Aries responded better where there was no interference from the weeds. Nitrogen contributed to greater development in P. maximum cv. Aries, but when coexisting with the uncut weeds, the weeds dominated the P. maximum cv. Aries. Cutting the weeds caused a reduction in the intensity of interspecific competition. The variable conditions of shade over time express different morphological responses in comparison to a homogeneous situation, mainly interfering in the speed of establishment of P. maximum cv. Aries.

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Plant development controls leaf area expansion in alfalfa plants competing for light

Abstract: Plant leaf area components differed with regard to their sensitivity to light competition. The potential shoot development model presented in this study could serve as a framework to integrate light responses in alfalfa crop models.

Cited by 53 publications

References 68 publications

Effect of plant spacing and fertility level on leaf area variation at different phenological stages of cape gooseberry (Physalisperuviana L.) grown in sodic soil

Effect of plant spacing and fertility level on leaf area variation at different phenological stages of cape gooseberry (Physalisperuviana L.) grown in sodic soil

Barley Leaf Area and Leaf Growth Rates Are Maximized during the Pre-Anthesis Phase

Competitive ability with weeds during the establishment of aries grass: morphological characteristics

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