EFFECTS OF B TOXICITY ON VEGETATIVE GROWTH, PHYSIOLOGICAL CHARACTERISTICS AND BORON DISTRIBUTION IN TWO SCION-ROOTSTOCK COMBINATIONS OF ALMOND (PRUNUS DULCIS MILL.) TREE

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ORAEI M.; TABATABAEI S.J.; FALLAHI E.; IMANI A.; SEYEDLAR FATEMI L.

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Journal: Journal of Horticultural Science Year:2013 | Volume:26 | Issue:4 Page(s): 440-447

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Title

EFFECTS OF B TOXICITY ON VEGETATIVE GROWTH, PHYSIOLOGICAL CHARACTERISTICS AND BORON DISTRIBUTION IN TWO SCION-ROOTSTOCK COMBINATIONS OF ALMOND (PRUNUS DULCIS MILL.) TREE

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Keywords

ALMONDQ2

B DISTRIBUTIONQ2

B TOXICITYQ2

GROWTHQ2

SCION-ROOTSTOCK COMBINATIONSQ2

Abstract

Boron (B) toxicity is an important disorder that can limit plant GROWTH in arid and semi-arid environments. It has been proven that use of tolerant rootstocks impede B uptake or transport to the aerial portions of plants. This may alleviate B TOXICITY in the scion, consequently improves the tolerance to excess B in the root zone. An experiment was conducted to find the effects of B TOXICITY on vegetative GROWTH, physiological characteristics and B DISTRIBUTION of ALMOND tree (Prunus dulcis Mill.) cv. “Ferragnes” grown in the controlled environment.Three levels of B (0.25, 10, 20 mg/L) from H3BO3 and two ALMOND rootstocks (GF677, Tuono) were factorially combined in a completely randomized design with four replications. The results showed that B TOXICITY had significant effects on vegetative GROWTH, physiological characteristics and B DISTRIBUTION in ALMOND tree. With increasing B levels in nutrient solution, vegetative characteristics including leaf production percentage and main shoot elongation was decreased significantly. However, Fr/Tuono was affected less than Fr/GF677. Also, physiological characteristics such as electrolyte leakage percentage, proline content and leaf necrosis percentage were increased significantly in two SCION-ROOTSTOCK COMBINATIONS. On the basis of these results, GF677 because of an inability to restrict uptake and/ or transport of excess B from root system to aerial parts of scion, have a higher sensitivity to B TOXICITY. Instead, Tuono via mechanism of preferential distribution of B in roots inhibited the accumulation of high concentration of B either in young leaves or meristematic tissues partially and protected these susceptible organs against injury caused by B TOXICITY. In conclusion, it seem that under excess B conditions Tuono rootstock have higher tolerance than GF677.

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APA: Copy

ORAEI, M., TABATABAEI, S.J., FALLAHI, E., IMANI, A., & SEYEDLAR FATEMI, L.. (2013). EFFECTS OF B TOXICITY ON VEGETATIVE GROWTH, PHYSIOLOGICAL CHARACTERISTICS AND BORON DISTRIBUTION IN TWO SCION-ROOTSTOCK COMBINATIONS OF ALMOND (PRUNUS DULCIS MILL.) TREE. JOURNAL OF HORTICULTURE SCIENCE (AGRICULTURAL SCIENCES AND TECHNOLOGY), 26(4), 440-447. SID. https://sid.ir/paper/142455/en

Vancouver: Copy

ORAEI M., TABATABAEI S.J., FALLAHI E., IMANI A., SEYEDLAR FATEMI L.. EFFECTS OF B TOXICITY ON VEGETATIVE GROWTH, PHYSIOLOGICAL CHARACTERISTICS AND BORON DISTRIBUTION IN TWO SCION-ROOTSTOCK COMBINATIONS OF ALMOND (PRUNUS DULCIS MILL.) TREE. JOURNAL OF HORTICULTURE SCIENCE (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2013;26(4):440-447. Available from: https://sid.ir/paper/142455/en

IEEE: Copy

M. ORAEI, S.J. TABATABAEI, E. FALLAHI, A. IMANI, and L. SEYEDLAR FATEMI, “EFFECTS OF B TOXICITY ON VEGETATIVE GROWTH, PHYSIOLOGICAL CHARACTERISTICS AND BORON DISTRIBUTION IN TWO SCION-ROOTSTOCK COMBINATIONS OF ALMOND (PRUNUS DULCIS MILL.) TREE,” JOURNAL OF HORTICULTURE SCIENCE (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 26, no. 4, pp. 440–447, 2013, [Online]. Available: https://sid.ir/paper/142455/en

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