EFFECTS OF SOWING DATE, IRRIGATION AND CA ON YIELD AND INCIDENCE OF BRACT NECROSIS ON SUNFLOWER IN GONBAD

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FARAJI A.; ESLAMI K.; AGHAJANI M.A.; SADEGHI S.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2006 | Volume:12 | Issue:Supplement (Special Issue Agronomy) Page(s): 66-73

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Title

EFFECTS OF SOWING DATE, IRRIGATION AND CA ON YIELD AND INCIDENCE OF BRACT NECROSIS ON SUNFLOWER IN GONBAD

Author(s)

FARAJI A. | ESLAMI K. | AGHAJANI M.A. | SADEGHI S. | Issue Writer Certificate

Keywords

SUNFLOWERQ3

SOWING DATEQ3

IRRIGATIONQ2

CAQ3

BRACT NECROSISQ4

Abstract

In order to study the effects of SOWING DATE, IRRIGATION and fertilizer levels on vegetative characters: yield, yield components and BRACT NECROSIS of SUNFLOWER (Golshid variety) an experiment was conducted at agricultural research station of Gonbad in 2001. The experiment was a factorial split plot Arranged in a RCBD with 3 replications. Two IRRIGATION regime (without IRRIGATION and IRRIGATION at three stages head visible, flowering and grain filling) and two SOWING DATE (Mar. 1st and 30th) were as main plots in a factorial arrangement and four fertilizer levels (without fertilizer, applying of 100 kg CAcl2/ha in soil and spraying of CAcl2 and complete fertilizer (at the dose of %5 before head visible and flowering stages) were subplots. Plant height, head diameter and the number of days from emergence to physiological maturity decreased significantly with a delay in SOWING DATE. SOWING DATE did not have any significant effect on 1000-grain weight, whereas incidence of BRACT NECROSIS increased with a delay in SOWING DATE. IRRIGATION increased head diameter, plant height, the number of days from emergence to physiological maturity and 1000-grain weight, but it decreased incidence of BRACT NECROSIS. Fertilizer did not have any significant effect on plant height, head diameter, the number 0 days from emergence to physiological maturity, 1000-grainweight, grain yield and incidence of BRACT NECROSIS. The effect of IRRIGATION and SOWING DATE significant on grain yield at 1% level. The grain yield of IRRIGATION treatment (1862 kg/ha) was more than that of without IRRIGATION treatment (968kg/ha). The grain yield of first and second SOWING DATE was 1669 and 1161 kg/ha, respectively.

Cites

INVESTIGATION IN TO DIFFERENT SOWING DATES AND FERTILIZATION METHODS (CHEMICAL AND ORGANIC) ON YIELD AND YIELD COMPONENTS OF MILK THISTLE (SILYBUM MARIANUM L.)

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APA: Copy

FARAJI, A., ESLAMI, K., AGHAJANI, M.A., & SADEGHI, S.. (2006). EFFECTS OF SOWING DATE, IRRIGATION AND CA ON YIELD AND INCIDENCE OF BRACT NECROSIS ON SUNFLOWER IN GONBAD. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 12(Supplement (Special Issue Agronomy)), 66-73. SID. https://sid.ir/paper/9045/en

Vancouver: Copy

FARAJI A., ESLAMI K., AGHAJANI M.A., SADEGHI S.. EFFECTS OF SOWING DATE, IRRIGATION AND CA ON YIELD AND INCIDENCE OF BRACT NECROSIS ON SUNFLOWER IN GONBAD. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2006;12(Supplement (Special Issue Agronomy)):66-73. Available from: https://sid.ir/paper/9045/en

IEEE: Copy

A. FARAJI, K. ESLAMI, M.A. AGHAJANI, and S. SADEGHI, “EFFECTS OF SOWING DATE, IRRIGATION AND CA ON YIELD AND INCIDENCE OF BRACT NECROSIS ON SUNFLOWER IN GONBAD,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 12, no. Supplement (Special Issue Agronomy), pp. 66–73, 2006, [Online]. Available: https://sid.ir/paper/9045/en

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