EFFECT OF DIFFERENT NITROGEN LEVELS AND SOURCES ON YIELD, FRUIT QUALITY AND DATE BUNCH FADING DISORDER SEVERITY IN DATE PALM CV.MOZAFATI IN JIROFT REGION

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GHAFFARI NEJAD S.A.; SABBAH A.

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Journal: IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY Year:2009 | Volume:10 | Issue:3 Page(s): 211-222

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Title

EFFECT OF DIFFERENT NITROGEN LEVELS AND SOURCES ON YIELD, FRUIT QUALITY AND DATE BUNCH FADING DISORDER SEVERITY IN DATE PALM CV.MOZAFATI IN JIROFT REGION

Author(s)

GHAFFARI NEJAD S.A. | SABBAH A. | Issue Writer Certificate

Keywords

BUNCH FADING DISORDERQ2

DATE PALMQ3

NITROGENQ2

YIELDQ2

Abstract

In order to determine the best level and source of NITROGEN fertilizers on YIELD, quality and reduction of DATE PALM BUNCH FADING DISORDER, an experiment was conducted in Jiroft region for two years from September 2004. Experiment was a randomized block design with 3 NITROGEN levels (700, 900 and 1100 g NITROGEN per tree), 3 fertilizer sources (urea, ammonium sulfate and ammonium nitrate) in 5 replications. Every plot contained a tree. Number of bunches thinned to 4 uniform bunches per tree. Before occuring disorder, 10 strands (bunchlets) werr selected randomly on each tree and thenafter to ripening disorder injury measured every 5-day intervals. Sampling of leaf (middle row leaves and leaflets) and bunch was done in Khalal to Rutab conversion stage. YIELD measured as kg per tree. Fruit characteristics such as Khalal diameter and length, mean Khalal and Rutab weight and NITROGEN concentration in leaf and bunch measured. The two-year combined data analysis showed that the effect of levels and sources of NITROGEN were significant on YIELD. The highest YIELD obtained from second level of NITROGEN (900 g N per tree) from ammonium nitrate source. The effect of N sources on disorder percentage was significant. Ammonium nitrate decreased disorder intensity significantly compared to other sources. The effect of N level and source on YIELD and disorder intensity were uniform in experimental years. Increasing N level from 700 to 900 g per tree significantly decreased Khalal diameter, length and weight but increased mean Rutab weight. It was concluded that for the highest YIELD and the least damage from this disorder use of 900 g net N from ammonium nitrate source is recommendable under experimental condition.

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APA: Copy

GHAFFARI NEJAD, S.A., & SABBAH, A.. (2009). EFFECT OF DIFFERENT NITROGEN LEVELS AND SOURCES ON YIELD, FRUIT QUALITY AND DATE BUNCH FADING DISORDER SEVERITY IN DATE PALM CV.MOZAFATI IN JIROFT REGION. IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY, 10(3), 211-222. SID. https://sid.ir/paper/80926/en

Vancouver: Copy

GHAFFARI NEJAD S.A., SABBAH A.. EFFECT OF DIFFERENT NITROGEN LEVELS AND SOURCES ON YIELD, FRUIT QUALITY AND DATE BUNCH FADING DISORDER SEVERITY IN DATE PALM CV.MOZAFATI IN JIROFT REGION. IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY[Internet]. 2009;10(3):211-222. Available from: https://sid.ir/paper/80926/en

IEEE: Copy

S.A. GHAFFARI NEJAD, and A. SABBAH, “EFFECT OF DIFFERENT NITROGEN LEVELS AND SOURCES ON YIELD, FRUIT QUALITY AND DATE BUNCH FADING DISORDER SEVERITY IN DATE PALM CV.MOZAFATI IN JIROFT REGION,” IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY, vol. 10, no. 3, pp. 211–222, 2009, [Online]. Available: https://sid.ir/paper/80926/en

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