Growth, nutrition, photosynthesis and transpiration responses of longleaf pine seedlings to light, water and nitrogen

Jose, Shibu; Merritt, Sara; Ramsey, Craig

doi:10.1016/s0378-1127(02)00583-2

Cited by 99 publications

(67 citation statements)

References 31 publications

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“…seedlings grown under high (> 800 µmol m -2 s -1 ) light than under low light (190 µmol m -2 s -1 ). On longleaf pine, Jose et al [29] observed under high light a 48.6 and 56% increase of stem and root biomass, respectively. On four deciduous and pioneer species, Rincon and Huante [47] reported larger relative growth rates (RGR) and biomass production under high light (400 µmol m -2 s -1 ) as compared with low light (80 µmol m -2 s -1 ).…”

Section: Introductionmentioning

confidence: 97%

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Interactive effects of phosphorus and light availability on early growth of maritime pine seedlings

Cheaib¹,

Mollier²,

Thunot³

et al. 2005

Ann. For. Sci.

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-We examined the response of early growth of maritime pine seedlings to combined levels of light and phosphorus. Seedlings were grown under three levels of phosphorous availability, i.e., two relative addition rates (RAR = 2 and 4 g P (100 g -1 )P d -1 ) and a free-access to P, crossed with two light levels (photosynthetic photon flux densities of 150 and 450 µmol m -2 s -1 , respectively). Relative growth rate (RGR) and relative uptake rate of phosphorus (RUR) were computed, as well as the amount of light absorbed per seedling. We found that phosphorus and light acted as limiting factors with a complex interaction. Under low light and at the lowest P level, P and light were co-limiting, i.e., growth was enhanced only when P and light were increased together. Light was the limiting factor for growth under low light conditions at all other levels of P availability. P was the limiting factor at a RAR of 2% under high light. Enhancing P from 4% to free access did not significantly improve growth under high light. RUR was controlled systematically by P availability at 2 and 4% RAR. RGR values were close to RUR values except under free access to P. Therefore, growth-independent accumulation of P was observed under high P conditions. The differences in biomass production among P treatments were explained primarily by the reduced amount of radiation intercepted by the seedlings as a consequence of their reduced leaf area. No effect of P treatments were observed on the calculated radiation-use efficiency (RUE), which was found to be larger under low light. This confirms that pine seedlings adjust to moderate phosphorus deficiency mainly by changing their morphology (leaf area, dry-mass partitioning) while biochemical and photochemical limitations of photosynthesis play only a very secondary role.phosphorus nutrition / shade / growth / Pinus pinaster Aït.Résumé -Interaction des effets de la disponibilité en phosphore et en lumière sur la croissance de jeunes plants de pin maritime. La croissance de jeunes plants de pin maritime a été suivie en chambre de culture à deux niveaux d'éclairement et trois de disponibilité en phosphore. Deux taux d'addition relatifs en P (RAR = 2 et 4 g P (100 g -1 P j -1 ) et un libre accès au P ont été appliqués en combinaison avec deux niveaux d'éclairement (150 et 450 µmol m -2 s -1 ). Le taux de croissance relatif (RGR) et le taux d'absorption relatif de P (RUR) ont été calculés. La surface foliaire, la quantité de rayonnement absorbé et l'efficience d'utilisation du rayonnement (RUE) ont aussi été estimés. Les disponibilités en phosphore et en lumière ont limité la croissance suivant un schéma d'interaction complexe. Au plus faible niveau d'éclairement et d'ajout en phosphore, les deux facteurs étaient co-limitants et la croissance n'était augmentée que lorsque les deux facteurs augmentaient simultanément. La lumière était le facteur limitant pour les traitements sous faible éclairement à tous les autres niveaux de disponibilité en P. Le phosphore était limitant pour des RAR de 2...

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Section: Introductionmentioning

confidence: 97%

“…Predicting their response to changes in the availability of a given resource or to combined changes in several resources is of critical importance in the context of global environmental changes. Many studies have been devoted to interactions between light and nitrogen in forest species [1,7,9,16,29]. These studies 576 A.…”

Section: Introductionmentioning

confidence: 99%

Interactive effects of phosphorus and light availability on early growth of maritime pine seedlings

Cheaib¹,

Mollier²,

Thunot³

et al. 2005

Ann. For. Sci.

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“…Until now, many researchers clarified numerous effects on plant growth (Ismail et al, 1994;Wang et al, 2009b), dry matter allocation (Yin et al, 2005;Mandal et al, 2006;Wu et al, 2008;Li et al, 2009;Sun et al, 2009;Gerardeaux et al, 2010), photosynthesis (Syros et al, 2004), nutrient concentration and status (Wang et al, 1998;Jose et al, 2003;Slamaa et al, 2008;Keutgen and Pawelzik, 2009). The oil palm (Elaeis guineensis Jacq.)…”

Section: Introductionmentioning

confidence: 99%

Growth and physiological responses to water and nutrient stress in oil palm

Sun¹,

Cao²,

Shao³

et al. 2011

Afr. J. Biotechnol.

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The research was conducted to detect changes in growth, physiology and nutrient concentration in response to two watering regimes (well-watered and water-stress conditions) and to two nutrient regimes (with or without fertilization) of oil palm. Under stress conditions, changes in plant growth, dry matter allocation, relative water content, leaf relative conductivity, leaf N, P and K concentration are usually observed. These characteristics and related parameters were determined and the experiment results are listed as follows: (1) fertilization promoted the growth of oil palm under well-watered conditions, while under water stress conditions its effects on growth was negative. The ratio of root/shoot was increased under water stress condition; (2) relative water content and chlorophyll a/b content were gradually decreased while leaf relative conductivity was increased quickly under water and nutrient stress conditions during the experiment. It is obvious that water stress had a greater influence than nutrient stress on these parameters; (3) water and nutrient stress decreased leaf nitrogen and phosphorus concentration but increased potassium concentration; the combination of water and nutrient stress made significant effects on nitrogen and phosphorus concentration, but no significant effects on potassium concentration. Moreover, deficiency of both water and nutrients in combination had the greatest impact on changes in these traits of oil palm.

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“…This may be due to high growth of herbaceous species and their competitive effect causing shorter growth and higher mortality for Cupressus seedlings. Numerous studies have addressed how the performance of planted or naturally established woody seedlings are affected by herb competition (Morris et al, 1993;Caldwell, et al, 1995;Rey Benayas et al, 2002, Jose et al, 2003 and other limiting factors. However, their interactive effects on the performance may have complex interactions receiving little attention.…”

Section: Influence Of Irrigation Soil and Weeding On Performance Of mentioning

confidence: 99%

Influence of Irrigation, Soil and Weeding on Performance of Mediterranean Cypress Seedling in Nursery

Tabari¹

2012

Water Quality, Soil and Managing Irrigation of Crops

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Growth, nutrition, photosynthesis and transpiration responses of longleaf pine seedlings to light, water and nitrogen

Cited by 99 publications

References 31 publications

Interactive effects of phosphorus and light availability on early growth of maritime pine seedlings

Interactive effects of phosphorus and light availability on early growth of maritime pine seedlings

Growth and physiological responses to water and nutrient stress in oil palm

Influence of Irrigation, Soil and Weeding on Performance of Mediterranean Cypress Seedling in Nursery

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