Effect of Nitrogen and Magnesium Application on Yield and Leaf-N and Mg Concentrations of Olive Trees Cv. Picual

Marcelo, M.E.; Jordao, Pedro V.; Soveral-Dias, J. C.; Matias, H.; Rogado, B.

doi:10.17660/actahortic.2002.586.64

Cited by 8 publications

(3 citation statements)

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“…This increase in leaf N content might have occurred by faster translocation of nitrogen to the shoot apices of growing points of the tree and consequently, its accumulation took place in the floral buds. The present findings are in line with the findings of Perica et al (1994); Marcelo et al (2002). The maximum value of leaf P content (0.179%) was observed in trees where 0.5% N+0.5% ZnSO 4 +0.5% H 3 BO 3 and 0.5% H 3 BO 3 alone was applied, which was significantly higher than remaining treatments.…”

Section: Resultssupporting

confidence: 92%

Influence of Nutrients on Growth, Fruitfulness and Leaf Nutrient Status of Olive (Olea europaea L.)

Kumar¹,

Sharma²

2017

IJBSM

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The anomalous and clogged uptake of nutrients and scrimpy soil fertility status were the main factors, which accounts for poor growth and yield of olive trees. Accordingly, olive trees of these areas exhibit a sublime response to foliar application of nutrients like Nitrogen, Potassium, Boron and Zinc in emboldening flowering and fruit set of olive. Keeping this in view, a field experiment was carried out during 2004-6 to infer the influence of nutrients on growth, fruitfulness and N, P, K, status in olive. The experiment consists of different treatments i.e. 0.5% Nitrogen (N), 0.5% Boric Acid (H 3 BO 3 ), 0.5% Zinc Sulphate (ZnSO 4 ) and their amalgamations were given. Significantly higher shoot extension growth (6.09 cm) and leaf area (6.23 cm 2 ) in olive, were observed in 0.5% N. Bloom intensity (0.58%) and fruit set (6.69%) were found significantly higher under 0.5% H 3 BO 3 ,+0.05% ZnSO 4 . Foliar application of 0.5%N has also culminated in a higher stomatal size (17.95×11.35 µm 2 ), whereas a transcendent increase in stomatal density was recorded with control (79.84). Nitrogen content was perceived maximum under 0.5% N (1.72%), P (0.179%) and K (1.68%) content was found utmost under H 3 BO 3 0.5%. The present investigation has evinced that application of 0.5%N was most efficacious in inducing optimum vegetative growth whereas, application of 0.5% H 3 BO 3 +0.5%ZnSO 4 was most effectual in enhancing bloom intensity, perfect flowers and fruit set in olive. Foliar application of Boron and Zinc can aid in escalating foliar Zinc and Boron level in olive trees, which in turn plays their role in pollination, fertilisation and increased fruit set of olive trees. AbstractArticle History

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Section: Resultssupporting

confidence: 92%

Influence of Nutrients on Growth, Fruitfulness and Leaf Nutrient Status of Olive (Olea europaea L.)

Kumar¹,

Sharma²

2017

IJBSM

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“…Another study revealed that the application of magnesium−potassium based fertilizer decreased Mg and Ca level in leaves, and increased it in Fuji apple fruits [41], although no significant effect was observed of Mg application on the leaf Mg content of olive trees cv. Picual [42].…”

Section: Discussionmentioning

confidence: 99%

Exogenous Application of Mg, Zn and B Influences Phyto-Nutritional Composition of Leaves and Fruits of Loquat (Eriobotrya japonica Lindl.)

et al. 2021

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This study was conducted to analyze the effect of magnesium (Mg), zinc (Zn) and boron (B) on the level of macronutrients (Na, Mg, K, Ca), micronutrients (Zn, B, Mo, Mn, Fe, Co, Ni, Cu), and heavy metals (Cd, As, Hg, Pb) in loquat leaves and fruit tissues (peel, pulp, and seed) using inductively coupled plasma-mass spectrometry (ICP-MS). Fruits were obtained from a loquat orchard located in Fujian (Yun Xiao/Zhangzhou). The results revealed that the foliar application of Mg increased the concentrations of Mg, K, Ca, Zn, B, Mn, Ni, and Cu in leaves; Mg, Ca, Zn, B, Mo, and Mn in fruit pulp; and Na, K, B, Mo, Co, Ni, and Cu in seeds. Zinc increased Mg, K, Ca, Zn, B, Ni, and Cu in leaves; Fe, Co and Ni in fruit peel; K, B, Mn, Fe, and Co in fruit pulp; and Na and K in seeds. Similarly, B application increased the concentrations of Na, Mg, K, Ca, and B in leaves; Ca and Ni in fruit peel; Na, Mg, Ca, Zn, B, Mn, Fe, and Co in fruit pulp; and Na, K, Ca, Zn, B, Mo, Mn, Co, and Ni in loquat seeds. Overall, mineral concentrations detected in the leaves and fruit tissues of loquats were greatly influenced by the application of Mg, Zn and B. Although heavy metal concentrations in fruit pulp were increased by the foliar application of B, the fruits were under safe limits for human consumption.

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“…The comparison between the leaf nutrient concentration in summer and winter also has high practical importance, since many researchers consider the resting period of winter a reliable period for diagnosing the nutritional status of olive trees (Perica 2001;Marcelo et al 2002;Soyergin and Katkat 2002;Pekcan et al 2008).…”

Section: Leaf Nutrient Concentrations In Winter and Summermentioning

confidence: 99%

Effect of Soil Management on Olive Yield and Nutritional Status of Trees in Rainfed Orchards

Rodrigues

Lopes²,

Pavão³

et al. 2011

Communications in Soil Science and Plant Analysis

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Effect of Nitrogen and Magnesium Application on Yield and Leaf-N and Mg Concentrations of Olive Trees Cv. Picual

Cited by 8 publications

References 0 publications

Influence of Nutrients on Growth, Fruitfulness and Leaf Nutrient Status of Olive (Olea europaea L.)

Influence of Nutrients on Growth, Fruitfulness and Leaf Nutrient Status of Olive (Olea europaea L.)

Exogenous Application of Mg, Zn and B Influences Phyto-Nutritional Composition of Leaves and Fruits of Loquat (Eriobotrya japonica Lindl.)

Effect of Soil Management on Olive Yield and Nutritional Status of Trees in Rainfed Orchards

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