Tag Archives: rootstock

1519-1540 F.E. Omari, L. Beniken, A. Zouahri, R. Mrabet, H. Benaouda, R. Benkirane and H. Benyahia
Optimization of NPK levels of Clementine Sidi Aissa (Citrus reticulata Blanco) trees grafted on different citrus rootstocks
Abstract |
Full text PDF (790 KB)

Optimization of NPK levels of Clementine Sidi Aissa (Citrus reticulata Blanco) trees grafted on different citrus rootstocks

F.E. Omari¹, L. Beniken¹, A. Zouahri², R. Mrabet³, H. Benaouda¹, R. Benkirane⁴ and H. Benyahia¹

¹Regional Center of Agricultural Research of Kenitra, National Institute of Agricultural Research (INRA), N°14, Ave. Abou Temmam mailbox: 257. Kenitra, Morocco
²Regional Center of Agricultural Research of Rabat, National Institute of Agricultural Research (INRA), Ave. Mohamed Belarbi Alaoui mailbox: 6356 – Institutes, Rabat Morocco
³National Institute of Agricultural Research (INRA), Rabat- Morocco. Ave. Ennasr mailbox: 415 RP Rabat Morocco
⁴Plant Productions, Animal and Agro-Industry Laboratory, Ibn Tofail University, Faculty of Science of Kenitra, University Campus, mailbox 133 Kenitra, Morocoo
*Correspondence: fatimaezahra.omari@inra.ma

Abstract:

The present study aims to investigate the impact of various nitrogen concentrations on young Clementine Sidi Aissa citrus trees (Citrus reticulata Blanco), grafted on five citrus rootstocks namely Moroccan Carrizo citrange, French Carrizo citrange, Troyer citrange, Citrus macrophylla, and sour orange (Citrus aurantium L.). The experiment took place in greenhouses at the Experimental station of El Menzeh INRA-Morocco, with the young trees grown in containers. We applied five different nitrogen treatments (expressed as mg L-1 of N-P2O5-K2O): (0–0–0), (0–25–50), (25–25–50), (50–25–50), and (100–25–50). The split-plot experimental design was used with three replications.

The findings demonstrate that the nitrogen enrichment resulted in enhanced plant growth, marked by increased plant height, rootstock and scion stem diameters, diameter and shoot length, relative water content (RWC), as well as leaf chlorophyll and proline content. Optimal growth of the Clementine Sidi Aissa trees was observed under the 100–25–50 (mg L-1 of N-P2O5-K2O) treatment.

The study also found that leaf nitrogen concentration increased in line with the quantity of nitrogen added, whereas the percentages of phosphorous and potassium in the leaves decreased. The most significant growth increase across the majority of the studied parameters was noted in Clementine Sidi Aissa trees grafted on Moroccan Carrizo citrange and Troyer citrange rootstocks.

Key words:

, , , ,




100–110 R. Imeri, E. Kullaj, E. Duhani and L. Millaku
Impact of rootstock on heavy metal bioaccumulation in apple plant grown near an industrial source in Obiliq, Kosovo
Abstract |

Impact of rootstock on heavy metal bioaccumulation in apple plant grown near an industrial source in Obiliq, Kosovo

R. Imeri¹, E. Kullaj¹, E. Duhani² and L. Millaku³*

¹Agricultural University of Tirana, Faculty of Agriculture and Environment, Department of Horticulture and Landscape Architecture, Koder-Kamez, AL1029 Tirana, Republic of Albania
²University of Prishtina, Faculty of Agriculture and Veterinary, Department of Agriculture, George Bush, nr. 31, XK10000 Prishtine, Republic of Kosovo
³University of Prishtina, Faculty of Mathematics and Natural Sciences, Department of Biology, George Bush, nr. 31, XK10000 Prishtine, Republic of Kosovo
*Correspondence: lulzimmillaku@hotmail.com

Abstract:

Food exposure to heavy metals such as Pb, Cd, Cr, Ni, As, Zn, Cu and Fe is considered a risk to human health. This study analyzes the level of heavy metals in soil and delicious apple tissues (fruit, leaf, shoot) in three different rootstocks: mm106, m26 and m9 grown in the Obiliq region (considered as a polluted region). The data obtained from the Obiliq areas are compared with those grown in reference clear area. Individual soil samples were collected from each plant to assess metal content in the immediate plant environment. Samples of soil, fruit, leaf and shoot have been analyzed for heavy metals (Pb, Cd, Ni, As, Zn, Cu, Cr and Fe) using atomic absorption spectrophotometry (AAS).
The results indicated that the average concentrations of Pb, Cd, Ni, As, Zn, Cu, Cr and Fe in soil of Obiliq areas were 2.03, 0.15, 6.99, 12.4, nd, 12.3, 4.68, 5.32 mg kg-1 d.w. respectively. The concentration of metals in the apple tissue increased with the increase of heavy metals in soil from polluted area. The accumulation ratios of heavy metals were calculated to assess the potential health risks. The mean concentrations of the heavy metals in the soil were in order of magnitude Ni > Zn > Cr > Cu > Fe > Pb > Cd > As while that in the fruits of apple were in order of magnitude Cr > Fe > Cu > Ni > Pb > Zn > Cd > As; in the leaves were Fe > Zn > Cu > Cr > Pb > Ni > Cd > As; in shoots were Zn > Fe > Cu > Pb > Ni > Cr > Cd > As.
Mobility of heavy metals and potentially hazardous in studied lands threatens the quality of apple fruit consumption, with a real risk that these elements (Cd, Pb, Ni and Cr) can enter the food chain.

Key words:

, , , ,




511-516 D. Kviklys, J. Lanauskas, J. Sakalauskaitė, N. Kviklienė and N. Uselis
Soil exhaustion and rootstock effect on the growth of apple planting material
Abstract |
Full text PDF (149 KB)

Soil exhaustion and rootstock effect on the growth of apple planting material

D. Kviklys, J. Lanauskas, J. Sakalauskaitė, N. Kviklienė and N. Uselis

Lithuanian Institute of Horticulture, Kauno 30, LT–54333 Babtai, Kaunas distr., Lithuania,e-mail: d.kviklys@lsdi.lt

Abstract:

Apple rootstocks P 59, P 22, P 2, P 60, M.9, M.26, MM.106, B.118 (54–118), B.396 (62–396) and ‘Antonowka‘ seedlings were tested at the Lithuanian Institute of Horticulture in fresh soil and in soil previously used for an apple nursery. Replanting had a negative effect on the development of apple tree propagation material in the nursery. Bud survival of cv. ‘Sampion’ decreased by 24% compared to those in fresh soil. Other tree growth parameters were suppressed as well: tree height by 29%, trunk diameter by 24%, average leaf area by 28%, and absolutely dry leaf weight by 33%. Combining all parameters it could be concluded that apple trees of cv. ‘Sampion’ on P 59 and P 60 rootstocks are the most sensitive to soil exhaustion, whereas trees on P 2 and B.396 rootstocks show tolerance to replanting.

Key words:

, , , ,