Document Details

Document Type : Article In Journal 
Document Title :
Karyological Study of "Khudari" Date Palm (Phoenix dactylifera L.) Seedlings Chromosomes
دراسات على الهيئة الكروموسومية لبادرات نخيل البلح صنف الخضري
 
Document Language : English 
Abstract : Using the present technique, clear prometaphase figures have been obtained from the primary root tips of "Khudari" date palm (Phoenix dactyli/era L.) seedlings. The diploid number of chromosomes confirmed the previously reported 2n = 36. Colchicine treatment for only one hour showed more accurate measurements of tot at chromosome length and arm ratio than three hours. Karyologocal analysis of the largest nine pairs of chromosomes revealed that pairs 1, 2 and 4 are submetacentric, pair 3 is metacentric, pairs 6 and 7 are subtelocentric, while pairs, 5, 8 and 9 are acrocentric. The discrepency between these results and those previously reported was attributed to the duration of colchicine treatment. Because of the consistency of results in all preparations, none of the largest nine chromosome pairs was considered to have a role in sex determination in "Khudari" date palm. 
ISSN : 1319-1039 
Journal Name : Meteorology, Environment and Arid Land Agriculture Sciences Journal 
Volume : 1 
Issue Number : 1 
Publishing Year : 1410 AH
1990 AD 
Article Type : Article 
Added Date : Wednesday, March 21, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
محمد عبد الرحيم شاهينSHAHEEN, Mohamed . ABDUL-RAHIMInvestigatorDoctoratemshaheen@kaau.edu.sa

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