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Journal of Environmental BiologypISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP |
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Abstract - Issue May 2010, 31 (3) BackInfluence of acorn size and
storage duration on moisture content, germination
and survival of Quercus petraea (Mattuschka) (Received: Abstract: This study was conducted to evaluate
how acorn size (small, medium and large) and acorn storage duration (0, 5 and
17 months) influenced Quercus petraea
(Mattuschka) moisture content and germination. Acorn
size and storage duration did not significantly affect acorn moisture content,
but they significantly affected acorn germination performance. When averaged
for three acorn sizes, loss of germination performance occurred after 17 months
of storage even when the moisture content did not reduce significantly and
remain at the initial level (32.6%). Maximum germination percentage was
observed in large and medium size classes before storage (93 and 95%,
respectively) and after 5-month storage (94 and 93%, respectively), but after
17-month storage medium acorn size class exhibited the highest germination
(68%).? Small seed size class exhibited
the lowest germination percentage and rate in each acorn
storage duration. Acorn size also significantly affected seedling
emergence and survival in the nursery, and seedling emergence and survival was the lowest in small seed size class (85
and 80%, respectively). Although seedling survival of one-year seedlings in the
nursery increased up to large seed size class, maximum survival in nursery
conditions was observed in large and medium size classes (89 and 91%,
respectively). Thus, acorn size grading in Q. petraea
may result in higher germination performance within in a seedbed.? Key words: ?Acorn
weight, Germination performance, Seedling emergence, Seedling survival ?????? ??????????????????PDF of full length paper is available online Copyright
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