EVALUATION OF SUGAR BEET RESPONSE TO PLANT POPULATION DYNAMICS DURING GROWTH SEASON

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AMINZADEH B.; TOHIDLOO GH.; FATHOLAH TALEGHANI D.

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Paper Information

Journal: JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES) Year:2012 | Volume:4 | Issue:1 Page(s): 33-43

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Title

EVALUATION OF SUGAR BEET RESPONSE TO PLANT POPULATION DYNAMICS DURING GROWTH SEASON

Author(s)

AMINZADEH B. | TOHIDLOO GH. | FATHOLAH TALEGHANI D. | Issue Writer Certificate

Keywords

DECREASE IN PLANT NUMBERQ3

PLANT DENSITYQ3

SUGAR BEETQ2

THINNING TIMEQ2

Abstract

In order to study the changes in time and extent of the decrease in PLANT DENSITY impact quantitative and qualitative yield of SUGAR BEET, this study was carried out in Agricultural Research Station of Kamalabad at Karaj region, Iran in 2011 as a factorial study on the basis of a Randomized Complete Blocks Design with four replications. The time of the thinning included four levels of 30, 60, 90 and 120 days after planting (DAP) and the factor of the extent of the thinning included six levels of control (no variation) and the removal of 25, 33, 50, 67 and 75% of the plants. The quantitative and qualitative traits of the crop were measured at the end of growing season. It was found that the time and extent of plants removal significantly influenced root yield and white sugar yield at 1% probability level. In terms the effect of the THINNING TIME, the delay in it resulted in gradual loss of root and sugar yield although no significant difference was observed in root yield between the levels of plants removal 90 and 120 DAP. However, the root yield 77.32 t.ha-1 was obtained from the treatment of plants removal 30 DAP, whereas white sugar yield was higher at the levels of plants removal 30 and 60 DAP than at the levels of plants removal 90 and 120 DAP with no significant differences among them. The highest white sugar yield (7.4-7.9 t.ha-1) was obtained from the treatments of plants removal 30 to 60 DAP and the delay in plants removal up to 90-120 DAP, on average, resulted in the significant loss of white sugar yield by 1.375 and 1.082 t.ha-1, respectively. In terms the effect of the extent of thinning too, its increase brought about the loss of root and white sugar yield of SUGAR BEETs. In total, the loss of root yield rate was not proportional with the extent of thinning. In fact, as 19.91, 25.84, 36.84, 58.60 and 68.48% of the plants were removed from the plants, root yield was decreased by 14.39, 12.13, 19.81, 28.67 and 42.44%, respectively showing that SUGAR BEETs had 5.51-29.93% compensating capability of the vacant spaces resulted from the plants removal.

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APA: Copy

AMINZADEH, B., TOHIDLOO, GH., & FATHOLAH TALEGHANI, D.. (2012). EVALUATION OF SUGAR BEET RESPONSE TO PLANT POPULATION DYNAMICS DURING GROWTH SEASON. JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES), 4(1), 33-43. SID. https://sid.ir/paper/182280/en

Vancouver: Copy

AMINZADEH B., TOHIDLOO GH., FATHOLAH TALEGHANI D.. EVALUATION OF SUGAR BEET RESPONSE TO PLANT POPULATION DYNAMICS DURING GROWTH SEASON. JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES)[Internet]. 2012;4(1):33-43. Available from: https://sid.ir/paper/182280/en

IEEE: Copy

B. AMINZADEH, GH. TOHIDLOO, and D. FATHOLAH TALEGHANI, “EVALUATION OF SUGAR BEET RESPONSE TO PLANT POPULATION DYNAMICS DURING GROWTH SEASON,” JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES), vol. 4, no. 1, pp. 33–43, 2012, [Online]. Available: https://sid.ir/paper/182280/en

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