EFFECTS OF SPACING ON YIELD OF VARIOUS CLONES OF POPULUS NIGRA L.

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HEMATI AHMAD; MODIR RAHMATI A.R.

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Journal: Iranian Journal of Forest and Poplar Research Year:2005 | Volume:13 | Issue:3 (21) Page(s): 343-352

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Title

EFFECTS OF SPACING ON YIELD OF VARIOUS CLONES OF POPULUS NIGRA L.

Author(s)

HEMATI AHMAD | MODIR RAHMATI A.R. | Issue Writer Certificate

Keywords

POPLARQ2

CLONEQ3

SPACINGQ3

DIAMETERQ3

HEIGHTQ3

VOLUMEQ3

Abstract

In order to determine the optimal SPACING in respect to maximum wood production in unit area, an experiment was conducted in 1993 at West Paper Industries Co. site (West Iran), using a number of high yield exotic POPLARsunder statistical design of factorial with three replicates. The factors consisted of SPACING at four levels (1x2, 2x2, 2x3 and 2x4 m.) and Populus nigra with four CLONEs (exotics: 62/172, 62/154 and 63/135 and native (control): 42/78). Every plot contained 25 seedlings of one year old root and stem. The growth parameters consisted of HEIGHT, breast HEIGHT DIAMETER and VOLUME which were measured and recorded annually, up to eight years. The best POPLAR CLONEs in respect to maximum wood VOLUME production at each SPACING treatment were as follows:1x2 m. SPACING: P. nigra 63/135 with 54 m3/ha/y and 11.3 cm DBH2x2 m. SPACING: P. nigra 63/135 with 34.3 m3/ha/y and 13 cm DBH.2x3 m. SPACING: P. nigra 62/154 with 29 m3/ha/y 13.9cm DBH.2x4 m. SPACING: P. nigra 63/135 with 25 m3/ha/y and 15.2cm DBH.

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APA: Copy

HEMATI, AHMAD, & MODIR RAHMATI, A.R.. (2005). EFFECTS OF SPACING ON YIELD OF VARIOUS CLONES OF POPULUS NIGRA L.. IRANIAN JOURNAL OF FOREST AND POPLAR RESEARCH, 13(3 (21)), 343-352. SID. https://sid.ir/paper/111256/en

Vancouver: Copy

HEMATI AHMAD, MODIR RAHMATI A.R.. EFFECTS OF SPACING ON YIELD OF VARIOUS CLONES OF POPULUS NIGRA L.. IRANIAN JOURNAL OF FOREST AND POPLAR RESEARCH[Internet]. 2005;13(3 (21)):343-352. Available from: https://sid.ir/paper/111256/en

IEEE: Copy

AHMAD HEMATI, and A.R. MODIR RAHMATI, “EFFECTS OF SPACING ON YIELD OF VARIOUS CLONES OF POPULUS NIGRA L.,” IRANIAN JOURNAL OF FOREST AND POPLAR RESEARCH, vol. 13, no. 3 (21), pp. 343–352, 2005, [Online]. Available: https://sid.ir/paper/111256/en

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