Component analysis of plant dry matter production: a basis for selection of breeding parents as illustrated in carnation

Sparnaaij, L. D.; Putten, H.J.J. Koehorst-van; Bos, I.

doi:10.1007/bf00023857

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…This result suggests that FW, TW and DW share common genetic determinants. In fact, FW, TW and DW all are parameters of growth, whereas FW expresses biomass accumulation and is directly associated with water content, which reflects the water status of the plant [73], TW is related to water storage capacity, and DW is an indicator of dry matter production and relative growth rate [74].…”

Section: Discussionmentioning

confidence: 99%

Genome-wide association mapping of leaf mass traits in a Vietnamese rice landrace panel

et al. 2019

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Leaf traits are often strongly correlated with yield, which poses a major challenge in rice breeding. In the present study, using a panel of Vietnamese rice landraces genotyped with 21,623 single-nucleotide polymorphism markers, a genome-wide association study (GWAS) was conducted for several leaf traits during the vegetative stage. Vietnamese landraces are often poorly represented in panels used for GWAS, even though they are adapted to contrasting agrosystems and can contain original, valuable genetic determinants. A panel of 180 rice varieties was grown in pots for four weeks with three replicates under nethouse conditions. Different leaf traits were measured on the second fully expanded leaf of the main tiller, which often plays a major role in determining the photosynthetic capacity of the plant. The leaf fresh weight, turgid weight and dry weight were measured; then, from these measurements, the relative tissue weight and leaf dry matter percentage were computed. The leaf dry matter percentage can be considered a proxy for the photosynthetic efficiency per unit leaf area, which contributes to yield. By a GWAS, thirteen QTLs associated with these leaf traits were identified. Eleven QTLs were identified for fresh weight, eleven for turgid weight, one for dry weight, one for relative tissue weight and one for leaf dry matter percentage. Eleven QTLs presented associations with several traits, suggesting that these traits share common genetic determinants, while one QTL was specific to leaf dry matter percentage and one QTL was specific to relative tissue weight. Interestingly, some of these QTLs colocalize with leaf- or yield-related QTLs previously identified using other material. Several genes within these QTLs with a known function in leaf development or physiology are reviewed.

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Section: Discussionmentioning

confidence: 99%

Genome-wide association mapping of leaf mass traits in a Vietnamese rice landrace panel

et al. 2019

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“…Similarly, the database was limited to the EC of the SSE (>1.8 and <2.5 dS m -1 ), in this case obtaining a reduction in the value of R 2 (from 0.57 to 0.55; Fig 4 ), which indicates that the effect of EC is already contemplated in the CND diagnosis. CND method can provide unbiased indices of nutrient balance in soils and plant tissues discarding random information and retains only significant factors [ 22 , 56 , 58 ].…”

Section: Resultsmentioning

confidence: 99%

Determination of diagnostic standards on saturated soil extracts for cut roses grown in greenhouses

Franco-Hermida¹,

Quintero

Cabrera

et al. 2017

PLoS ONE

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This work comprises the theoretical determination and validation of diagnostic standards for the analysis of saturated soil extracts for cut rose flower crops (Rosa spp.) growing in the Bogota Plateau, Colombia. The data included 684 plant tissue analyses and 684 corresponding analyses of saturated soil extracts, all collected between January 2009 and June 2013. The tissue and soil samples were selected from 13 rose farms, and from cultivars grafted on the 'Natal Briar' rootstock. These concurrent samples of soil and plant tissues represented 251 production units (locations) of approximately 10,000 m2 distributed across the study area. The standards were conceived as a tool to improve the nutritional balance in the leaf tissue of rose plants and thereby define the norms for expressing optimum productive potential relative to nutritional conditions in the soil. To this end, previously determined diagnostic standard for rose leaf tissues were employed to obtain rates of foliar nutritional balance at each analyzed location and as criteria for determining the diagnostic norms for saturated soil extracts. Implementing this methodology to foliar analysis, showed a higher significant correlation for diagnostic indices. A similar behavior was observed in saturated soil extracts analysis, becoming a powerful tool for integrated nutritional diagnosis. Leaf analyses determine the most limiting nutrients for high yield and analyses of saturated soil extracts facilitate the possibility of correcting the fertigation formulations applied to soils or substrates. Recommendations are proposed to improve the balance in soil-plant system with which the possibility of yield increase becomes more probable. The main recommendations to increase and improve rose crop flower yields would be: continuously check pH values of SSE, reduce the amounts of P, Fe, Zn and Cu in fertigation solutions and carefully analyze the situation of Mn in the soil-plant system.

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Genetic variation in dry weight of carnation cuttings: its causes and consequences

Sparnaaij¹,

Bos²

1996

Euphytica

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Carnation cultivars vary considerably in the average weight of their cuttings . Cutting weight shows a high negative correlation with mean relative growth rate . This was initially attributed to differences in `age' of the cuttings when taken from the stock plants, `age' being defined as time elapsed since start of visible shoot growth . Shoots on a stock plant are removed as cuttings when they have reached an adequate size and number of leaf pairs . Cuttings from cultivars with a lower rate of growth are removed later, usually resulting in a higher dry weight . This could explain why a high cutting weight is associated with a low relative growth rate .The validity of this tentative explanation is tested in 13 carnation cultivars grown under controlled conditions in two trials, one with plants grown from pinched cuttings and one with plants grown from unpinched cuttings for early flowering (forcing) . An analysis of the data for plant weight and leaf pair number at successive stages of development suggests that the primary cause of the negative correlation between cutting weight and mean relative growth rate is not genetic variation in age of the cuttings, but variation in the size of the fully developed axillary bud on the stock plant . Larger buds produce thicker shoots that grow more slowly . Their later harvesting as cuttings only enhances their initial weight advantage, and also the negative correlation with mean relative growth rate .When plants are pinched 20 days after planting, as is normal in a summer-grown crop, the newly developing shoots still show variation in age. This is attributed to variation in the developmental stage of the dormant axillary buds at the time of pinching, causing variation in the time interval between pinching and the start of visible shoot growth .

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Component analysis of plant dry matter production: a basis for selection of breeding parents as illustrated in carnation

Cited by 4 publications

References 15 publications

Genome-wide association mapping of leaf mass traits in a Vietnamese rice landrace panel

Genome-wide association mapping of leaf mass traits in a Vietnamese rice landrace panel

Determination of diagnostic standards on saturated soil extracts for cut roses grown in greenhouses

Genetic variation in dry weight of carnation cuttings: its causes and consequences

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