Evaluation of Bt. cotton varieties for yield and related traits under agro-ecological environment of Dera Ismail Khan

Abstract

An investigation to find out performance of various cotton cultivars under local agro-ecological environment of Dera Ismail Khan was carried out at Cotton Research Station, D.I.Khan during the crop season 2020. Trial was laid out in RCB fashion having 3 repetitions. Data were collected on various yield and related attributes like plant height (cm), plant population (ha^-1), No. of bolls plant^-1, boll weight (g), seed cotton yield (kg ha^-1) and ginning out turn (%). Statistical analysis revealed that different varieties depicted significant differences regarding yield and related attributes. Cotton cultivars differed significantly for lint production due to differences in number of bolls per plant, boll weight and height of plant. Based on these results it is concluded that FH-Lalazar was the most promising genotype producing yield (3444 kg ha^-1), bolls plant^-1 (35.33) and boll weight (2.58 g). The cultivar CIM-622 also depicted reasonable yield and its related parameters. It is thus recommended that cotton cultivars FH-Lalazar and CIM-622 should be cultivated to harvest good yield under the agro-ecological environment of Dera Ismail Khan