DIGITALNA ARHIVA ŠUMARSKOG LISTA
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| ŠUMARSKI LIST 11-12/2023 str. 16 <-- 16 --> PDF |
was 10.75 %. In the first seven days, not a single acorn germinated, so the germination energy was 0.00 %. In the first 14 days, laboratory germination was 30.50 %, after the 21st day 76.50 %, after the 28th day 83.75 % and after the 35th day 88.50 %. The difference between the assessment of acorn vitality and total laboratory germination was only 1.75 %. The vitality assessment method is faster and cheaper than the germination test. We get the results of the vitality assessment in 18 hours, while we test the germination after 28 or 35 days. Practical procedures can be based on the results of these studies suggest testing the vitality of the holm oak and not the laboratory germination as recommended by the ISTA rules. The average germination time (MGT) was 19.91 days. There were 74.25 % of regular seedlings and 14.25 % of irregular ones. At the end of the test, 8.50 % of the visually healthy acorns did not germinate, while 3.00 % of the rotten acorns were found. The most common irregularity in the amount of 56.14 % was determined for the category of two joined seedlings, followed by necrosis of primary leaves (12.28 %) and stunted primary root (10.53 %). Other irregularities appear in less than 10,00 % of cases. Key words: island of Rab, tetrazole method, ISTA rules, normal seedlings, abnormal seedlings |