Results 11 to 20 of about 22,919,819 (258)

Hormonal changes during salinity-induced leaf senescence in tomato (Solanum lycopersicum L.) [PDF]

open access: yes, 2008
Leaf senescence is one of the most limiting factors to plant productivity under salinity. Both the accumulation of specific toxic ions (e.g. Na+) and changes in leaf hormone relations are involved in the regulation of this process. Tomato plants (Solanum
Lutts, S.   +10 more
core   +5 more sources

Leaf-to-leaf distances and their moments in finite and infinite m-ary tree graphs [PDF]

open access: yes, 2015
We study the leaf-to-leaf distances on full and complete m-ary graphs using a recursive approach. In our formulation, leaves are ordered along a line. We find explicit analytical formulae for the sum of all paths for arbitrary leaf-to-leaf distance r as
Römer, Rudolf A.   +2 more
core   +1 more source

Leaf Nutrient Status of Commercially Grown Strawberries in Latvia, 2014–2022: A Possible Yield-Limiting Factor

open access: yesPlants, 2023
The present study was carried out to evaluate the leaf nutrient status of commercially grown strawberries in Latvia during 2014–2022. The results of N, P, K, Ca, Mg, S, Fe, Mn, Zn, Cu, Mo and B in 200 strawberry leaf samples from different strawberry ...
Anita Osvalde   +3 more
doaj   +1 more source

Analysis of leaf appearance, leaf death and phoma leaf spot, caused by Leptosphaeria maculans, on oilseed rape (Brassica napus) cultivars [PDF]

open access: yes, 2010
Development of phoma leaf spot (caused by Leptosphaeria maculans) on winter oilseed rape (canola, Brassica napus) was assessed in two experiments at Rothamsted in successive years (2003-04 and 2004-05 growing seasons).
Fitt, B. D. L.   +4 more
core   +1 more source

Sufficiency ranges (sr) and deviation from optimum percentage (dop) references for leaf blade and petiole analysis in ‘Red Grenache’ grapevines

open access: yesOENO One, 2015
Aim: To obtain specific references for the nutritional diagnosis of ten essential nutrients for leaf blade and petiole of ‘red Grenache’ (Vitis vinifera L.).
Ana Benito   +4 more
doaj   +1 more source

Leaf nutrient contents of rangpur lime rootstock as afected by N, P, K, Ca and S fertilization Concentrações foliares do porta-enxerto limoeiro 'cravo' em função da adubação N, P, K, Ca e S

open access: yesScientia Agricola, 2004
Analysis of leaf nutrient contents can demonstrate plant nutritional status, identify symptoms of deficiency and toxicity, and evaluate the need to adjust fertilization programs.
Jonas Ruschel   +4 more
doaj   +1 more source

Optical instruments for measuring leaf area index in low vegetation : application in Arctic ecosystems [PDF]

open access: yes, 2005
Author Posting. © Ecological Society of America, 2005. This article is posted here by permission of Ecological Society of America for personal use, not for redistribution.
Williams, Mathew   +5 more
core   +1 more source

Nutritional standards through Integrated Differential Diagnosis (IDD) in pomegranate (Punica granatum L.)

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2023
The foliar analysis is a useful tool to detect the nutritional status of plants, predict future problems in the reproductive cycles of fruit production and implement preventive and corrective measures to achieve a mineral balance in fruit trees ...
Nubia G. TORRES-BELTRÁN   +3 more
doaj   +1 more source

A scholarly catalogue raisonné: George Wilson and the engraved fan leaf design 1795-1801 [PDF]

open access: yes, 2012
This research thesis offers a small but comprehensive scholarly catalogue raisonné of the surviving unmounted fan leaves designed and printed by the late eighteenth-century English fan leaf engraver, George Wilson (active before 1795-after 1801). Wilson’
Harrison, Rosanna
core   +6 more sources

The relationship of leaf photosynthetic traits – Vcmax and Jmax – to leaf nitrogen, leaf phosphorus, and specific leaf area: a meta-analysis and modeling study [PDF]

open access: yes, 2014
Great uncertainty exists in the global exchange of carbon between the atmosphere and the terrestrial biosphere. An important source of this uncertainty lies in the dependency of photosynthesis on the maximum rate of carboxylation (Vcmax) and the maximum ...
Wullschleger, S.   +43 more
core   +1 more source

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