ISSN 0513-4676
BULLETIN
OF
YAMAGATA UNIVERSITY
（AGRICULTURAL SCIENCE）
Vol. 18, No. 1.
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Published by
THE YAMAGATA UNIVERSITY, YAMAGATA JAPAN
FEBRUARY 2018
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CONTENTS
Original Articles
Sanshiro Ogawaand Ryota Nozawa :
JAS Standardization of Lumber Production and Actual Management Condition of Lumber
Producers : Case Study of Lumber Producers Trend in Yamagata Prefecture ･････････ 1（ 1 ）
Takanori Yamamoto : Effects of Canopy Shapes and Their Partial Deformations on Photosynthesis in
Orchards : Analytical Results Using Model Methods and Formulas to Estimate Net
