Effects of the Nitrogen Source and Concentration on N Fractions in Olive Seedlings

Fernández, José Luis García; Solís, Rafael Sarmiento; Arce, Antonio Troncoso de; Vela, Carmen Mazuelos

doi:10.17660/actahortic.1994.356.41

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…Between two olive cultivars, significantly more leaf area (5.90 cm 2 ) was observed in Leccino and the treatment cultivar interaction was found to be non-significant. These results are in accordance to those of Garcia et al (1994). Yet, in the present studies, the foliar applications of H 3 BO 3 and ZnSO 4 were observed to have less effect on various growth parameters.…”

Section: Resultssupporting

confidence: 93%

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: 93%

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

Kumar¹,

Sharma²

2017

IJBSM

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“…By means of in vitro olive zygotic embryo germination with an appropriate nitrogen supply, a reduction of the germination time, a germination percentage close to 100% and an increase of the growth rate of seedlings has been achieved (García et al, 1994;Sarmiento et al, 1994;Acebedo et al, 1997). Nevertheless, olive germinated in vitro still shows a limited proliferation rate due mainly to a lack of secondary shoot production; this technique needs further improvement.…”

Section: Introductionmentioning

confidence: 99%

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García

Troncoso

Sarmiento

et al. 2002

Plant Cell, Tissue and Organ Culture

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“…By in vitro culture of isolated mature olive embryos very high germination percentages have been obtained (Troncoso et al, 1991;Voyiatzis and Pritsa, 1994;Voyiatzis, 1995) in few days, even reaching 100% (Acebedo et al, 1997) and by using appropriate nitrogen forms and concentrations (García et al, 1994;Sarmiento et al, 1994) and sugar (García et al, 2002) a high in vitro growth of the seedlings was obtained. The use of a suitable substratum (Rugini, 1984), nutritive solutions (García et al, 1999) and photoperiod (Alvarado, 1994) during the hardening phase also increases the plant development.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Mycorrhizal Glomus Intraradices on the Development of in Vitro Raised Olive Seedlings During Acclimation Phase

Arce¹,

Benjumea²,

Montero³

et al. 2008

Acta Hortic.

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For olive genetic improvement work it is very important to obtain a high rate of seed germination and a shortening of the juvenile period of the plants raised. By in vitro embryo culture, a 100% of germination is attained in a few days and the supply of adequate nutritive solutions and photoperiod speeds up seedling development during hardening, thus shortening juvenility. Mycorrhizal is another resource to improve plant development. This work attempts to know the effect of the vesicular-arbuscular mycorrhizal Glomus intraradices on the survival and development of olive seedlings obtained by in vitro embryo germination, during greenhouse hardening phase.Olive seedlings obtained by in vitro embryo germination were transplanted to pots with sterile sandy soil. Half of the pots were inoculated with 5g of Glomus intraradices. Afterwards, the pots were transferred to a greenhouse and watered at field capacity. After 180 days in this conditions, the number of dead plants, stem and shoot length of the surviving plants, and leaves, stems, shoots, roots and whole plant fresh and dry weight were recorded. Also, the nutritive status of the above indicated organs was analysed.

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Effects of the Nitrogen Source and Concentration on N Fractions in Olive Seedlings

Cited by 7 publications

References 8 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.)

Untitled

Influence of the Mycorrhizal Glomus Intraradices on the Development of in Vitro Raised Olive Seedlings During Acclimation Phase

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