APPLICATION OF A BIPHASIC PATTERN FOR DESCRIBING DRY MATTER PARTITIONING BETWEEN LEAF AND STEM IN SOYBEAN (GLYCINE MAX L.) CULTIVARS

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NEHBANDANI A.R.; SOLTANI A.; ZEINALI E.; RAEISI S.; NAJAFI R.

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Journal: Iranian Journal of Crop Sciences Year:2016 | Volume:18 | Issue:1 Page(s): 76-87

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Title

APPLICATION OF A BIPHASIC PATTERN FOR DESCRIBING DRY MATTER PARTITIONING BETWEEN LEAF AND STEM IN SOYBEAN (GLYCINE MAX L.) CULTIVARS

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PARTITIONING OF DRY MATTERQ3

PLANT DENSITYQ2

SIMULATION MODEL AND SOYBEANQ1

Abstract

Recent studies have shown that dry matter partitioning between leaf and stem in vegetative growth satges of crops follows a biphasic pattern. The purpose of this experiment was to calculate biphasic pattern coefficients that describe the PARTITIONING OF DRY MATTER between leaves and stems of soybean cultivars under irrigation conditions and assessment of the stability of these coefficients for different cultivars and and PLANT DENSITY. Two field experiments were conducted in the Research Field of Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran in 2006 and 2012 cropping seasons. In the first experiment, seed of cultivar Sahar was deteriorated in different times then sown. In the second experiment, two soybean cultivars (Sahar and Katool were sown in four densities (15, 30, 45 and 60 plant.m-2). Stem and leaf dry weights were measured every 10 days. From emergence to first-seed stage (R5), a biphasic pattern for allocation of dry matter between leaves and stems was observed. In the lower amount of total dry matter, 59% and 41% of dry matter produced was allocated to leaves and stems, respectively. Also, the mean value of 132 g.m-2 of dry matter in turning point between these two phases was determined. There were not significant differences between soybean cultivars for biphasic pattern of dry matter partitioning, and this pattern described the observed variations. Thus, it can be concluded that dry matter partitioning between leaves and stems in the termination of leaf production stage on main stem of soybean followed a biphasic pattern.

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APA: Copy

NEHBANDANI, A.R., SOLTANI, A., ZEINALI, E., RAEISI, S., & NAJAFI, R.. (2016). APPLICATION OF A BIPHASIC PATTERN FOR DESCRIBING DRY MATTER PARTITIONING BETWEEN LEAF AND STEM IN SOYBEAN (GLYCINE MAX L.) CULTIVARS. IRANIAN JOURNAL OF CROP SCIENCES, 18(1), 76-87. SID. https://sid.ir/paper/57276/en

Vancouver: Copy

NEHBANDANI A.R., SOLTANI A., ZEINALI E., RAEISI S., NAJAFI R.. APPLICATION OF A BIPHASIC PATTERN FOR DESCRIBING DRY MATTER PARTITIONING BETWEEN LEAF AND STEM IN SOYBEAN (GLYCINE MAX L.) CULTIVARS. IRANIAN JOURNAL OF CROP SCIENCES[Internet]. 2016;18(1):76-87. Available from: https://sid.ir/paper/57276/en

IEEE: Copy

A.R. NEHBANDANI, A. SOLTANI, E. ZEINALI, S. RAEISI, and R. NAJAFI, “APPLICATION OF A BIPHASIC PATTERN FOR DESCRIBING DRY MATTER PARTITIONING BETWEEN LEAF AND STEM IN SOYBEAN (GLYCINE MAX L.) CULTIVARS,” IRANIAN JOURNAL OF CROP SCIENCES, vol. 18, no. 1, pp. 76–87, 2016, [Online]. Available: https://sid.ir/paper/57276/en

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