Effect of Planting Date and Planting Density on Yield, Yield Components and Rust Disease Severity in Ramhormoz Selected Garlic in Behbahan Region

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Abstract

To study effect of planting date and planting density on yield, yield components and rust disease severity in Ramhormoz selected garlic an experiment was conducted at Behbahan Agriculture Research Station in two years (2002-2004). A split split plot arrangement in RBCD with four replications was used. Main plots consisted of four planting dates from Sep. 05 to Nov. 04 with 15 days intervals. Sub-plots consisted of three row spacing 20, 30 and 40 cm and sub-sub plot consisted of three plant spacings 7, 10 and 13 cm. Bulb were harvested in late April. Results showed that planting date of Sep. 0 5 prouduced the highest yield (19.52 tha-1). By increasing the distance between rows and plants, bulb yield decearesd but the mean weight of bulb and clove increased. Therefore, the highest bulb yield and the lowest mean weight of bulb and clove were produced by 714 plants m-2 (spacing of 20 × 7 cm). Effects of planting date and planting density on mean clove number and clove dry matter were not significant.The lowest disease severity was observed in planting date of Sep. 05 and planting density of 714 plants m-2. It is concluded that Ramhomoz selected garlic can be planted in Sep. 05 with 714 plants m-2 in Behbehan region.

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Seed and Plant Production Journal
Volume 26, Issue 1
July 2010
Pages 43-55

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