دراسة تصنيفية مقارنة للصفات التشريحية لأنواع جنس الصنوبر Pinus L. النامية في شمال العراق

Other Title(s)

Comparative identification anatomical characteristics study of Pinups species (Pinaceae)‎ growing in northern Iraq

Joint Authors

الجواري، هايس صايل جرجيس
الملاح، عبد الرزاق رؤوف سليمان
الألوسي، يونس محمد قاسم

Source

مجلة جامعة كركوك للعلوم الزراعية

Publisher

Kirkuk University College of Agriculture

Publication Date

2019-12-31

Country of Publication

Iraq

No. of Pages

16

Main Subjects

Agriculture

English Abstract

This study included Comparative Identification Anatomical characteristics for ( 6 ) species belonging to the genus Pinus L.

( Pinaceae ) which are growing in northern Iraq in ( 11 ) Sites which were distributed in Ninavah , Dohuk , and Erbil Provinces , five of them were cultivated ( Pinus halepensis Mill.

, P.

eldarica Medw., P.

pinea L.

, P.

canariensis Sm., P.

radiata Son.) and one species grown naturally ( P.

brutia Ten.).

Anatomical study : included tow aspects : 1- Anatomy Wood mechanically (mechanically separated cells) : the Pinus species studied showed clear variation in wood characters for the three sections (transverse, tangential longitudinal, radial longitudinal ) which showed clear different between the species in number of type of ray high / mm2, ray height in tangential section, ray height in radial section , height of fusiform ray, dimeter of fusiform resin canal , wall of ray tracheids , and identified three type of pits in the cross- fields which are consider characteristics taxonomic importance in the identified of pine species, and found three type of pits in the cross- fields : Pinoid, Taxodioid and Fenestriform therefore it considered very important characteristic of identified of pine species .

2 - separation of cells wood chemically: The results study of anatomical wood showed variation of the species studied in the dimensions of the tracheids (length and diameter of the tracheids and wall thickness) , the ratio of Runkel , dimensions of bordered pits .

And contributed to the study of the anatomical wood to separated and identified species of pine studied.

According to Runkel ratio , Pinus.

radiata is the most suitable for the pulp and paper industry with the lowest rate (0,255).

And so the rest of the species.

It is clear from these results that some of the anatomical characteristics of the leaves and the anatomy of wood are of taxonomic significance in the identified of the pine species studied because of its proven identity and support for the studied phenotypes.The type P.

canariensis Sm.

In most of the traits of growth and morphology, it was separation and identified from other studied species.

Pinus brutia was isolated from P.

halepensis as separate and independent species.

In the light of the studies referred to in this study, the current researchers tend to consider that Pinus eldarica is subspecies of Pinus brutia (Pinus brutia subsp.

eldarica ).

For the first time in the Iraqi country, an anatomical diagnostic key has been developed for Pinus species growing in northern Iraq ,evidence for their identification of the timber of these studied species.

Data Type

Conference Papers

Record ID

BIM-1249960

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