EFFECTS OF IRRIGATION REGIME AND INSECTICIDE APPLICATION ON ONION THRIPS (THRIPS TABACI LIND.), BULB YIELD AND YIELD COMPONENTS

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HATAMI B.; KHAJEHALI J.; MOBLI M.; SABZALIAN M.R.

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY Year:2006 | Volume:7 | Issue:2 Page(s): 67-76

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Title

EFFECTS OF IRRIGATION REGIME AND INSECTICIDE APPLICATION ON ONION THRIPS (THRIPS TABACI LIND.), BULB YIELD AND YIELD COMPONENTS

Author(s)

HATAMI B. | KHAJEHALI J. | MOBLI M. | SABZALIAN M.R. | Issue Writer Certificate

Keywords

BULB YIELDQ2

IRRIGATION REGIMEQ3

ONIONQ3

ONION THRIPSQ3

YIELD COMPONENTSQ2

Abstract

Onion (Allium cepa L.) is one of the most important vegetables in Iran and the world. Since Iran is located in dry areas of the world, drought occurrence can affect ONION yield, prevalence and outbreaks of ONION pests, especially ONION thrips. In order to study the effects of different IRRIGATION REGIMEs and insecticide application on ONION thrips and BULB YIELD, four IRRIGATION REGIMEs (irrigation after 40, 50, 60 and 70 mm cumulative evaporation from class A pan) with and without insecticide application were used in a 2´4 factorial experiment in a complete randomized block design with 4 replications in 2004. Each experimental plot was consisted of 4 photometers with 50 and 90 cm diameter and depth, respectively, and was planted with 12 ONION seedlings. The population density of ONION thrips was determined weekly by testing two plants. Mean number of leaves, plant height, fresh and dry weights and bulbing ratio were measured in mid and late August and mid September. Results showed that the longer irrigation interval reduced population of the ONION thrips and fresh and dry weights, but did not significantly affect number of leaves and plant height. Bulbing ratio was higher in longer irrigation interval sprayed plots than shorter irrigation interval unsprayed plots. Maximum and minimum BULB YIELD was obtained in 50 and 70 mm irrigation treatments, respectively. Spraying reduced thrips density and consequently increased fresh and dry weights, plant height, bulbing ratio and BULB YIELD. There were significant interactions between IRRIGATION REGIMEs and spraying for most agronomic traits and thrips populations.

Cites

EFFECT OF IRRIGATION REGIME AND PLANT DENSITY ON QUANTITATIVE AND QUALITATIVE TRAITS OF ONION (ALLIUM CEPA L.) IN ISFAHAN

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APA: Copy

HATAMI, B., KHAJEHALI, J., MOBLI, M., & SABZALIAN, M.R.. (2006). EFFECTS OF IRRIGATION REGIME AND INSECTICIDE APPLICATION ON ONION THRIPS (THRIPS TABACI LIND.), BULB YIELD AND YIELD COMPONENTS. IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY, 7(2), 67-76. SID. https://sid.ir/paper/80907/en

Vancouver: Copy

HATAMI B., KHAJEHALI J., MOBLI M., SABZALIAN M.R.. EFFECTS OF IRRIGATION REGIME AND INSECTICIDE APPLICATION ON ONION THRIPS (THRIPS TABACI LIND.), BULB YIELD AND YIELD COMPONENTS. IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY[Internet]. 2006;7(2):67-76. Available from: https://sid.ir/paper/80907/en

IEEE: Copy

B. HATAMI, J. KHAJEHALI, M. MOBLI, and M.R. SABZALIAN, “EFFECTS OF IRRIGATION REGIME AND INSECTICIDE APPLICATION ON ONION THRIPS (THRIPS TABACI LIND.), BULB YIELD AND YIELD COMPONENTS,” IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY, vol. 7, no. 2, pp. 67–76, 2006, [Online]. Available: https://sid.ir/paper/80907/en

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