Flushing time and growth rate of Pinus sylvestris seedlings
Identification of phenological stages is the first step to study the plant response to environmental changes, such as climate, temperature, precipitation, fertilization, irrigation and biological control. In order to identify the phenological stages, 100 seedlings were studied at 5-10 days intervals...
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| Format: | Article |
| Language: | fas |
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Research Institute of Forests and Rangelands of Iran
2009-12-01
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| Series: | تحقیقات جنگل و صنوبر ایران |
| Subjects: | |
| Online Access: | http://ijfpr.areeo.ac.ir/article_107748_7686da410eaa66d43a3d7996d2219743.pdf |
| _version_ | 1811302217792094208 |
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| author | Alireza Zare Vladimir Albertovich Bryntsev |
| author_facet | Alireza Zare Vladimir Albertovich Bryntsev |
| author_sort | Alireza Zare |
| collection | DOAJ |
| description | Identification of phenological stages is the first step to study the plant response to environmental changes, such as climate, temperature, precipitation, fertilization, irrigation and biological control. In order to identify the phenological stages, 100 seedlings were studied at 5-10 days intervals. Stem and leaf length growth were measured by ruler and caliper to draw growth rate curve. Results showed that annual, biennial and 3- years old and older up to productive age of Pinus sylvestris were classified into 10, 10, 9 and 8 groups, respectively. Time of phenological stages was slightly different between biennial and older seedlings. Sigmoidal growth curve of biennial seedlings revealed that the effect of middle part of last year stem on increased seedling height was more than upper part (apical meristem). Hence any parameter that increases middle part of annual seedling will consequently increase the length growth of biennial seedlings. Stem elongation was affected by phenological stage of lammas shoot at the late growth season. Appearance of leaf buds coincides maximum length growth of seedling stem and young trees. |
| first_indexed | 2024-04-13T07:24:08Z |
| format | Article |
| id | doaj.art-d4a53e0339f0421d90b0fd3e997775cb |
| institution | Directory Open Access Journal |
| issn | 1735-0883 2383-1146 |
| language | fas |
| last_indexed | 2024-04-13T07:24:08Z |
| publishDate | 2009-12-01 |
| publisher | Research Institute of Forests and Rangelands of Iran |
| record_format | Article |
| series | تحقیقات جنگل و صنوبر ایران |
| spelling | doaj.art-d4a53e0339f0421d90b0fd3e997775cb2022-12-22T02:56:32ZfasResearch Institute of Forests and Rangelands of Iranتحقیقات جنگل و صنوبر ایران1735-08832383-11462009-12-01174511500107748Flushing time and growth rate of Pinus sylvestris seedlingsAlireza Zare0Vladimir Albertovich Bryntsev1Assistant Prof., Research Center of Agricultural and Natural Resources of Khorasan Razavi provinceProfessor, Forest Faculty of Moscow State UniversityIdentification of phenological stages is the first step to study the plant response to environmental changes, such as climate, temperature, precipitation, fertilization, irrigation and biological control. In order to identify the phenological stages, 100 seedlings were studied at 5-10 days intervals. Stem and leaf length growth were measured by ruler and caliper to draw growth rate curve. Results showed that annual, biennial and 3- years old and older up to productive age of Pinus sylvestris were classified into 10, 10, 9 and 8 groups, respectively. Time of phenological stages was slightly different between biennial and older seedlings. Sigmoidal growth curve of biennial seedlings revealed that the effect of middle part of last year stem on increased seedling height was more than upper part (apical meristem). Hence any parameter that increases middle part of annual seedling will consequently increase the length growth of biennial seedlings. Stem elongation was affected by phenological stage of lammas shoot at the late growth season. Appearance of leaf buds coincides maximum length growth of seedling stem and young trees.http://ijfpr.areeo.ac.ir/article_107748_7686da410eaa66d43a3d7996d2219743.pdfPhenological stagesflushing timePinus sylvestrisgrowth rate curvelammas shootseedling age |
| spellingShingle | Alireza Zare Vladimir Albertovich Bryntsev Flushing time and growth rate of Pinus sylvestris seedlings تحقیقات جنگل و صنوبر ایران Phenological stages flushing time Pinus sylvestris growth rate curve lammas shoot seedling age |
| title | Flushing time and growth rate of Pinus sylvestris seedlings |
| title_full | Flushing time and growth rate of Pinus sylvestris seedlings |
| title_fullStr | Flushing time and growth rate of Pinus sylvestris seedlings |
| title_full_unstemmed | Flushing time and growth rate of Pinus sylvestris seedlings |
| title_short | Flushing time and growth rate of Pinus sylvestris seedlings |
| title_sort | flushing time and growth rate of pinus sylvestris seedlings |
| topic | Phenological stages flushing time Pinus sylvestris growth rate curve lammas shoot seedling age |
| url | http://ijfpr.areeo.ac.ir/article_107748_7686da410eaa66d43a3d7996d2219743.pdf |
| work_keys_str_mv | AT alirezazare flushingtimeandgrowthrateofpinussylvestrisseedlings AT vladimiralbertovichbryntsev flushingtimeandgrowthrateofpinussylvestrisseedlings |