Genetic differences in root mass of Lolium perenne varieties under field conditions

Deru, J.G.C.; Schilder, Henk; Schoot, J.R. van der; Eekeren, N.J.M. van

doi:10.1007/s10681-014-1129-x

Cited by 22 publications

(16 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This may indicate that species with higher SRL are better accustomed to retrieving P in a P‐limiting environment. Many studies have reported differences in rooting depth, SRL and other root morphological traits among grass species and cultivars ( e.g ., Crush et al, ; Deru et al, ). These characteristics may change with the presence or absence of P fertilization ( Hill et al, ).…”

Section: Introductionmentioning

confidence: 99%

What root traits determine grass resistance to phosphorus deficiency in production grassland?

Ros

Deyn

Koopmans

et al. 2018

J. Plant Nutr. Soil Sci.

View full text Add to dashboard Cite

Grasslands are a major form of agricultural land use worldwide. Current and future declines of phosphorus (P) inputs into production grasslands necessitate a shift towards selecting grass species based on high efficiency under suboptimal, rather than optimal P conditions. It is therefore imperative to identify key root traits that determine P acquisition of grasses in soils with a low P status. In a 9‐month greenhouse experiment, we grew eight common grass species and cultivars on a soil with a low P status and related root morphological traits to their performance under P‐limiting conditions. We applied (P1) or withheld (P0) P fertilization while providing adequate amounts of all other nutrients. Omitting P fertilization greatly reduced yield and nutrient acquisition for the various grass species. Biomass production differed significantly (P < 0.1%) among species and P fertilization treatments, varying from 17.1 to 72.1 g pot−1 in the P0 treatment and from 33.4 to 85.8 g pot−1 in the P1 treatment. Root traits were species‐specific and unresponsive to P fertilization, but overall we observed a trade‐off between root biomass and specific root length. Structural equation modeling identified total root length as key factor with respect to resistance to P deficiency, especially when roots explored the subsoil. Optimizing root length and subsoil exploration could be the key to maintaining high productivity of production grasslands with decreasing P availability. This is relevant for both plant breeding programs and for composing seed mixtures.

show abstract

Section: Introductionmentioning

confidence: 99%

What root traits determine grass resistance to phosphorus deficiency in production grassland?

Ros

Deyn

Koopmans

et al. 2018

J. Plant Nutr. Soil Sci.

View full text Add to dashboard Cite

show abstract

“…Tetraploid cultivar Calibra had higher values upon storage at all temperatures except at the room temperature (p<0.01). Deru et al (2014), in two field trials, identified different effect of ploidy level to the perennial ryegrass root dry matter mass and length. The greatest differences in root weight between cultivars were observed upon the storage at -20 C (4.28 g) and least upon 10 C (0.64 g).…”

Section: Resultsmentioning

confidence: 96%

Seed quality and plantlet traits of perennial ryegrass after 5 years of seed storage at various temperatures

et al. 2018

View full text Add to dashboard Cite

Original scientific paperIzvorni znanstveni članak seed quality and plantlets development. The highest average values for germination and seedling root and shoot lengths were obtained after the storage at -80°C, and the lowest after storage at room temperature. The highest average values for emergence, plantlet height and roots and shoots fresh weights were obtained after the storage at -20°C, while the root length was greatest after the storage at -80°C. Tetraploid cultivar Calibra had significantly greater average values than diploid Bartwingo for all the investigated traits except for germination and primary shoot length. SUMMARY The aim of this research was to investigate the seed quality of perennial ryegrass after 5-year storage treatments at various temperatures. The seeds of two cultivars of perennial ryegrass (diploid Bartwingo and tetraploid Calibra) were used, and the storage treatment temperatures were: room temperature (about 21°C), 10°C, -20°C and -80°C. Seed quality traits (germination and seedlings' root and shoot lengths) were determined before and after the storage treatments. Additionally, early development traits in mini-pots during the first two months of development (emergence, plantlet height, plantlet root length, fresh weight of roots and shoots) were tested. The research has shown significant effects of storage temperatures to all the investigated traits of

show abstract

“…For RDW, genotypes showed similar behavior up to 60 DAE, while in the other evaluation times, tetraploid ryegrass showed higher accumulation; at 120 DAE, the value was 45% higher than that of diploid ryegrass, with 39.78 g per plant ( Figure 2D). Tetraploid ryegrass plants have a more developed root system, contributing to efficient use of water and assimilation of limited nutrients in the environment, reducing soil erosion and improving soil biological characteristics due to the increased carbon and other nutrients source (Deru et al, 2014).…”

Section: Fitness Costmentioning

confidence: 99%

Fitness Cost and Competitive Ability to Different Ploidy Levels in Ryegrass Genotypes

et al. 2019

View full text Add to dashboard Cite

The intergenotypic competition of tetraploid ryegrass with natural diploid population may be a tool to reduce the frequency of resistant individuals in an area. This study aimed to identify and compare the phenological development, fitness cost, and competitive ability between diploid and tetraploid ryegrass genotypes. Genotypes were grown in pots, and the morphological variables of genotype growth were assessed every 15 days up to 120 days after emergence to evaluate the fitness cost. Phenological development and seed yield components were measured in a single time together with the fitness cost. Competitive ability was determined in a replacement-series experiment with proportions of tetraploid and diploid ryegrass, in which the number of tillers, plant height, leaf area, and shoot dry weight were assessed at 50 days after emergence. The results of fitness cost showed that the number of tillers, leaf area, root dry weight, and the number of seeds were higher for tetraploid ryegrass, which presented a higher competitive ability than the diploid genotype regardless of the tested proportions. Tetraploid ryegrass may be useful for reducing the frequency of herbicide-resistant diploid ryegrass because of its higher competitive potential.

show abstract

Genetic differences in root mass of Lolium perenne varieties under field conditions

Cited by 22 publications

References 33 publications

What root traits determine grass resistance to phosphorus deficiency in production grassland?

What root traits determine grass resistance to phosphorus deficiency in production grassland?

Seed quality and plantlet traits of perennial ryegrass after 5 years of seed storage at various temperatures

Fitness Cost and Competitive Ability to Different Ploidy Levels in Ryegrass Genotypes

Contact Info

Product

Resources

About