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Vol. 9, Issue 4 (2020)

Effect of weed control method on gladiolus (Gladiolus grandiflorus L.) cv. American Beauty on weed growth

Author(s):
Manisha Bhaskar, Samir Kumar and Madan Kumar Jha
Abstract:
The present investigation “Effect of weed control methods on gladiolus (Gladiolus grandiflorus L.) cv. American Beauty” was conducted in the Department of Floriculture and Landscape Architecture, College of Agriculture, Indira Gandhi Agricultural University, Raipur, Chhattisgarh during the rabiseason of year 2017-18. The experiment consisted of 11 treatment combinations of different weed control treatments viz. Pendimethalin 30% EC @ 1.0 kg a.i. ha-1 (PE) + hand weeding at 30 DAP (T1), Pendimethalin 30% EC @ 2.0 kg a.i. ha-1 (PE) + hand weeding at 30 DAP (T2), Oxyfluorfen 23.5% EC @ 0.25 kg a.i. ha-1 (PE) + hand weeding at 30 DAP (T3), Oxyfluorfen 23.5% EC @ 0.50 kg a.i. ha-1 (PE) + hand weeding at 30 DAP(T4), Pendimethalin 30% EC @ 1.0 kg a.i. ha-1 (PE) + Fenoxaprop-p-ethyl 9.3% EC @ 0.10 kg a.i. ha-1 at 30 DAP (PoE) (T5), Pendimethalin 30% EC @ 2.0 kg a.i. ha-1 (PE) + Fenoxaprop-p-ethyl 9.3% EC @ 0.10 kg a.i. ha-1 at 30 DAP (PoE) (T6),Oxyfluorfen 23.5% EC @ 0.25 kg a.i. ha-1 (PE) + Fenoxaprop-p-ethyl 9.3% EC @ 0.10 kg a.i. ha-1 at 30 DAP (PoE) (T7), Oxyfluorfen 23.5% EC @ 0.50 kg a.i. ha-1 (PE) + Fenoxaprop-p-ethyl 9.3% EC @ 0.10 kg a.i. ha-1 at 30 DAP (PoE) (T8), One Hand Weeding at 30 DAP (T9), Two Hand Weeding at 30 and 650 DAP (T10) and Un weeded (Control) (T11). The plots treated with pre-emergence herbicides i.e. pendimethaline and oxyfluorfen significantly reduced the weed population at early stage of crop growth as compared to plots where other treatments were applied like hand weeding and unweeded (control). The least weed density (3.67 and 5.00 at 30 and 60 DAP, respectively) and dry weight (0.04 g at 30 DAP and 0.09 g at 60 DAP) was recorded under Pendimethalin 30% EC @ 1.0 kg a.i. ha-1 (PE) + Hand Weeding at 30 DAT i.e. T1. At later stage of crop growth i.e. 90 DAP, minimum weed density (11.89) and dry weight (0.49 g) was observed in treatment Two Hand Weeding at 30 and 60 DAP. The maximum values for these parameters were recorded in un weeded treatment. Significantly maximum weed control efficiency (95.8% at 30 DAP and 98.4% at 60 DAP) was observed in Pendimethalin 30% EC @ 1.0 kg a.i. ha-1 (PE) + Hand Weeding at 30 DAT. However, it was maximum (94.2%) in treatment Two Hand Weeding at 30 and 60 after transplanting of gladiolus crop. Minimum (00%) was noted in un weeded treatment at all stages of crop growth.
Pages: 165-169  |  242 Views  2 Downloads
How to cite this article:
Manisha Bhaskar, Samir Kumar, Madan Kumar Jha. Effect of weed control method on gladiolus (Gladiolus grandiflorus L.) cv. American Beauty on weed growth. Pharma Innovation 2020;9(4):165-169.
The Pharma Innovation Journal