EFFECT OF PLANT DENSITY ON MORPHOLOGICAL TRAIT AND YIELD IN THREE SUNFLOWER HYBRIDS AS SECOND CROP

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GHALANDARI R.; RAHIMZADEHKHOEI F.; TOORCHI M.; BEHTARI B.

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Journal: JOURNAL OF RESEARCH IN CROP SCIENCES Year:2011 | Volume:2 | Issue:7 Page(s): 37-48

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Title

EFFECT OF PLANT DENSITY ON MORPHOLOGICAL TRAIT AND YIELD IN THREE SUNFLOWER HYBRIDS AS SECOND CROP

Author(s)

GHALANDARI R. | RAHIMZADEHKHOEI F. | TOORCHI M. | BEHTARI B. | Issue Writer Certificate

Keywords

HYBRIDS VARIETYQ2

MORPHOLOGICAL TRAITSQ2

PHYSIOLOGICAL TRAITSQ2

PLANT DENSITYQ3

SUNFLOWER AND YIELDQ3

Abstract

To study the effects of PLANT DENSITY on morphological, PHYSIOLOGICAL TRAITS and yield of three sunflower hybrids (Azargol, Alistar and Eroflor) an experiment was conducted at Agriculture Research Station of Miandoab, in 2004. These hybrids were sown at four densities of 6, 8, 10 and 12 seeds m-2. Experimental design was factorial based on randomized complete block design with three replications. The results showed that all traits were significantly affected by PLANT DENSITY. Density and hybrid interaction was significant for days to maturity, head diameter, number of total seeds per head, number of filled seeds per head, percentage of hollowness, 1000 seeds weight and oil percentage. Stem length, percentage of hollowness, dry matter and yield per unit area, oil percentage and oil yield per unit area were increased with increasing PLANT DENSITY. However, by increased PLANT DENSITY, days to flowering and maturity, head diameter, number of filled seeds per head, 1000 seed weight and percentage of crust were decreased. Although seed yield per plant at low densities was greater than high densities, this increase was not much enough for competing the reduction of yield due to low density. The relationship between PLANT DENSITY by equation 1/w=a+bp and y=p/a+bp. Application of these equation showed that by increasing PLANT DENSITY, seed yield per unit area in all three cultivars was increased. Therefore, we can conclude that the economic optimum density for these cultivars could be higher than the maximum density tested in this experiment (12 plants per m2).

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APA: Copy

GHALANDARI, R., RAHIMZADEHKHOEI, F., TOORCHI, M., & BEHTARI, B.. (2011). EFFECT OF PLANT DENSITY ON MORPHOLOGICAL TRAIT AND YIELD IN THREE SUNFLOWER HYBRIDS AS SECOND CROP. JOURNAL OF RESEARCH IN CROP SCIENCES, 2(7), 37-48. SID. https://sid.ir/paper/167945/en

Vancouver: Copy

GHALANDARI R., RAHIMZADEHKHOEI F., TOORCHI M., BEHTARI B.. EFFECT OF PLANT DENSITY ON MORPHOLOGICAL TRAIT AND YIELD IN THREE SUNFLOWER HYBRIDS AS SECOND CROP. JOURNAL OF RESEARCH IN CROP SCIENCES[Internet]. 2011;2(7):37-48. Available from: https://sid.ir/paper/167945/en

IEEE: Copy

R. GHALANDARI, F. RAHIMZADEHKHOEI, M. TOORCHI, and B. BEHTARI, “EFFECT OF PLANT DENSITY ON MORPHOLOGICAL TRAIT AND YIELD IN THREE SUNFLOWER HYBRIDS AS SECOND CROP,” JOURNAL OF RESEARCH IN CROP SCIENCES, vol. 2, no. 7, pp. 37–48, 2011, [Online]. Available: https://sid.ir/paper/167945/en

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