دراسات فصلية لبعض الجوانب الكيميوحيوية لخمسة أصناف من نخيل التمر الذكري : الأحماض الدهنية و الأمينية

الملخص EN

The present study deals with the seasonal variations of fatty acids and amino acids concentrations in leaves and grain pollen of five date palm cultivars (Ghannami Akhder, Ghannami Ahmar, Kakkri Adi, Dekel C and Dekel G) collected from Abu-Alkhaseab, Southern of Basrah during the period between Nov.

2007 (Autumn season) and Aug.

2008 (Summer season).

In Autumn season, the highest value of SAFA (Saturated Fatty Acids) was recorded in DeKel C (55.20 - 55.52) g/100g, and the highest value of MUFA (Monounsaturated Fatty Acids) was recorded in Ghannami Ahmar (45.16 – 45.38) g/100g, while the highest value of PUFA (Polyunsaturated Fatty Acids) was recorded in Kakkri Adi (27.01 – 27.56) g/100g.

In Winter season, the highest value of SAFA (Saturated Fatty Acids) was recorded in Ghannami Ahmar (47.00 - 47.12) g/100g, and the highest value of MUFA (Monounsaturated Fatty Acids) was recorded (44.34 – 45.00) g/100g and the highest value of PUFA (Polyunsaturated Fatty Acids) was recorded (19.03 – 19.69) g/100g in Kakkri Adi, respectively.

In Spring season, the highest value of SAFA (Saturated Fatty Acids) was recorded in DeKel C (69.37 - 70.15) g/100g, and the highest value of MUFA (Monounsaturated Fatty Acids) was recorded in Ghannami Akhder (27.75 – 27.89) g/100g, while the highest value of PUFA (Polyunsaturated Fatty Acids) was recorded in Ghannami Ahmar (30.85 – 30.90) g/100g.

In Summer season, the highest value of SAFA (Saturated Fatty Acids) was recorded in DeKel G (56.50 - 56.81) g/100g, and the highest value of MUFA (Monounsaturated Fatty Acids) was recorded in DeKel C (39.04 – 39.06) g/100g, while the highest value of PUFA (Polyunsaturated Fatty Acids) was recorded in Ghannami Akhder (16.48 – 16.59) g/100g.

The high content of SAFA, MUFA and PUFA in grain pollen were recorded in Dekel G, Ghannami Ahmar and Kakkri Adi, respectively.

Also, the high content of amino acids (especially; Aspartic acid, Glutamic acid, Proline, Phenyalanine and Leucine) was recorded in Dekel G, While, the content of (Glycine, Valine and Isoleucine) were not recorded any significant differences.