Impact of some herbicides, herbicide combinations and herbicide tank mixture on sowing characteristics of chickpea (Cicer arietinum L.)

Grozi Delchev, Milena Delcheva

Abstract: The research was conducted during 2016 – 2018 on pellic vertisol soil type. Under investigation was chickpea cultivar Kabule (Cicer arietinum L.). Factor A included untreated control and 4 soil-applied herbicides – Dual gold 960 EC (S-metolachlor) – 1.5 l.ha-1, Stomp aqua (pendimethalin) – 3 l.ha-1, Merlin fl ex 480 SC (isoxafl utole) – 420 g.ha-1 and Pelican 50 SC (diflufenikan) – 250 ml.ha-1. Factor B included untreated control, 3 foliar-aplied herbicides – Pulsar 40 (imazamox) – 1.2 l.ha-1, Challenge 600 SC (aclonifen) – 4 l.ha-1 and Shadow 3 ЕC (clethodim) – 1.6 l.ha-1 and 1 herbicide tank mixture – Challenge 600 SC (aclonifen) – 4 l.ha-1 + Shadow 3 ЕC (clethodim) – 1.6 l.ha-1. Soil herbicides were applied during the period after sowing before emergence. Foliar herbicides were applied during 6 – 8 real leaf stage of the chickpea. Alone use of foliar-applied herbicide Pulsar and its combinations with soil-applied herbicides Dual gold, Stomp aqua, Merlin fl ex and Pelican proven decrease germination energy of the chickpea seeds. Laboratory seed germination proves decreasing by herbicide combination Pelican + Pulsar only. Length of primary germ is decreased by alone use of foliar-applied herbicide Pulsar and its combinations with soil-aplied herbicides Dual gold, Stomp aqua, Merlin fl ex and Pelican. Length of primary root is decreased by herbicide combination Pelican + Pulsar only. Herbicide combination Pelican + Pulsar proven increases waste grain quantities. Alone uses of herbicides Pelican and Pulsar do not proven decreases waste grain quantities. The highest yields of chickpea seeds are obtained by foliar treatment with herbicide tank-mixture Challenge + Shadow after soil-applied herbicides Pelican and Merlin flex. High yields are obtained also by foliar treatment with herbicide tank-mixture Challenge + Shadow after soil-applied herbicides Stomp aqua and Dual gold.

Keywords: chickpea; herbicide combinations; herbicides; seed yield; sowing characteristics

Date published: 2019-12-29