The effect of plant spacing on growth and development in linseed

Leitch, M. H.; Sahi, F.

doi:10.1111/j.1744-7348.1999.tb00884.x

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…The smaller reduction at the intermediate density of 500 seeds m –2 might be due to higher survival of basal branches. A better survival percentage of basal branches at lower densities was recorded by Leitch and Sahi (1999). However, a similar pattern was not observed during 1994, which was comparatively dry and hot.…”

Section: Discussionsupporting

confidence: 56%

“…Below a minimum stand density of 400 seeds m –2 , compensation by means of apical and basal branches was considered ineffective to reach the equilibrium level of production (Diepenbrock and Porksen 1993). Leitch and Sahi (1999) found a significant linear relationship between number of shoots produced and available space per plant (y=0.05(±0.012)x+1.01; P<0.05). Moisture stress discouraged primary branching, reduced leaf activity and shortened the crop life cycle, while high temperatures increased the depletion of assimilates in the process of respiration in the second year of the experiment.…”

Section: Discussionmentioning

confidence: 93%

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Dry Matter Accumulation in Linseed (Linum usitatissimum L.)*

Hassan

Leitch

2001

J Agronomy Crop Science

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Field experiments were conducted at the Marfa Mawr field station of the University of Wales, Aberystwyth, over 2 years to study the effects of seeding density and row spacing on dry matter accumulation in linseed (Linum usitatissimum L.). Dry matter accumulation increased progressively in all the densities and row spacings with the age of the plants during both the years. However, during 1993 a reduction in dry matter was observed between 106 days after sowing (DAS) and maturity (138 DAS), but this did not happen during 1994. This reduction was considered to be the effect of lodging of the crop and leaf senescence. The lodging took place due to heavy showers of rain and high winds near maturity, and plants were not able to support the weight of capsules. The greater amount of total dry matter accumulated during 1993 compared to 1994 was related to climatic conditions (moist and relatively cool in 1993) on one hand and the total length of the crop life cycle on the other. A total of 391 mm of rain was received during the crop life cycle during 1993 while 229 mm of rain was recorded during 1994. A difference of 2 °C in mean temperature between 1993 and 1994 was also recorded.

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Section: Discussionsupporting

confidence: 56%

Section: Discussionmentioning

confidence: 93%

Dry Matter Accumulation in Linseed (Linum usitatissimum L.)*

Hassan

Leitch

2001

J Agronomy Crop Science

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“…Several yield reports for linseed, grown in various environments, demonstrated that a low number of plants is balanced by increased capsules/plant due to branching [21,22,23,24,25]. Accordingly, in our experiment, seed yield was not significantly different between the two varieties, being capsules/plant and 1000 seed weight higher in Solal than Bethune.…”

Section: Resultscontrasting

confidence: 48%

Evaluation of Chemical Composition of Two Linseed Varieties as Sources of Health-Beneficial Substances

et al. 2019

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Linseed (Linum usitatissimum L.) is becoming more and more important in the health food market as a functional food, since its seeds and oil represent a rich source of bioactive compounds. Its chemical composition is strongly correlated with, and dependent on, genetic characteristics. The aim of this study was to evaluate the variation in seed yield, oil content, fatty acid composition and secondary metabolite profiles between a low-linolenic linseed variety, belonging to the Solin-type group (Solal), and a high-linolenic traditional one (Bethune), cultivated, both as spring crops, in open field conditions of Central Italy. The achieved results pointed out the different behavior of the two varieties in terms of growth cycle, oil content, and some important yield components, such as capsule number per plant and thousand seed weight. There were also significant differences in seed composition regarding total phenols, total flavonoids, antioxidant activities as well as in carotenoid, tocopherol, and tocotrienol profiles between the two varieties. In particular, Solal was characterized by the greatest contents of oil, phenols, flavonoids, α- and δ- tocotrienol, together with the highest antioxidant activity. Bethune, on the contrary, showed the highest amounts of carotenoids (lutein and β-carotene). These results indicate a clear effect of the genetic characteristics on the biosynthesis of these secondary metabolites and, consequently, on the related antioxidant activity. Our findings suggest that the mutation process, responsible for the selection of the low-linolenic cultivar, is able to modify the biosynthetic pathways of carotenoids and phenolics.

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“…The effects of intraspecific plant spacing and density have often been examined in the context of agricultural production and forestry (reviewed in Harper 1977). Increased planting density is associated with decreased survival, biomass, and reproduction (Gubbels & Dedio 1990; Jefferson & Kielly 1998; Leitch & Sahi 1999; Otsamo 2002). Manipulating plant density in natural populations also affects individual success (e.g., Maron 2001; Rao et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Spacing and Competition Between Planted Grass Plugs and Preexisting Perennial Grasses in a Restoration Site in Oregon

Huddleston

Young

2004

Restoration Ecology

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Planting native species into restoration settings where other natives already occur is a common practice. However, the competitive consequences of such plantings are rarely studied. Planting density also affects restoration costs. Here we examined the effects of established individuals of Lemmon's needlegrass (Achnatherum lemmonii) on plugs of bluebunch wheatgrass (Pseudoroegneria spicata) and Idaho fescue (Festuca idahoensis) in a restoration site in Oregon. All three of these grasses are local native perennials. Plugs were planted at 6, 12, and 18 cm from established A. lemmonii bunchgrasses and also in plots without A. lemmonii neighbors. Plug survival was uniformly high, averaging more than 98%. Plugs planted at 6 cm from established grasses showed significantly lower growth and reproduction than plugs planted at 18 cm, which had similar values to plugs not planted in the vicinity of A. lemmonii. These results suggest that interplanting distances of as little as 18 cm were sufficient to greatly reduce competitive effects on newly planted plugs, at least in early establishment at this site.

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The effect of plant spacing on growth and development in linseed

Cited by 7 publications

References 8 publications

Dry Matter Accumulation in Linseed (Linum usitatissimum L.)*

Dry Matter Accumulation in Linseed (Linum usitatissimum L.)*

Evaluation of Chemical Composition of Two Linseed Varieties as Sources of Health-Beneficial Substances

Spacing and Competition Between Planted Grass Plugs and Preexisting Perennial Grasses in a Restoration Site in Oregon

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