HETEROTIC POTENTIAL OF UPLAND COTTON HYBRIDS FOR EARLINESS AND YIELD RELATED ATTRIBUTES

Cotton is a long duration crop which effects the timely sowing of wheat in Pakistan. Information various earliness and yield related traits are pre-requisite to develop early maturing high yielding cotton cultivars. Therefore, present research was conducted determine heterotic potential for six related. For this purpose, 10 F1 hybrids were developed through crossing between nine upland These along with their parental lines sown field conditions Faisalabad, All showed significant differences observed traits. The maximum recorded values heterosis index seed 66.05% 70.39%, respectively. Hybrid VH-289 × AGC-501 (66.05%), heterobeltiosis (50.43%) standard (32.52%) due negative days flowering, first boll opening, node number fruiting branch height branch. ARK-3 (70.39%), (28.52%) (72.01%) positive by its contributing This study can be used breeding program varieties.