NISHA, S. S. JAKHAR, AXAY BHUKAR AND SATPAL*
Department of Seed Science & Technology
Forage Section, Department of Genetics & Plant Breeding
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail : satpal.fpj@gmail.com)
(Received : 29 January 2020; Accepted : 2 March 2020)
SUMMARY
The present study was undertaken to find out the performance of different single cut forage sorghum genotypes under different fertility levels. The field experiment was conducted at Research Farm, Department of Seed Science & Technology, CCS Haryana Agricultural University, Hisar (Haryana), India during kharif season, 2018. The single-cut forage sorghum genotypes used in the experiment were HC 136 and HJ 541. Among varieties highest (7.560) speed of emergence was recorded in variety HJ 541 while, lowest in HC 136. The maximum (4.264) reduction in speed of emergence was observed in variety HC 136 while, minimum (3.597) decrease was observed in variety HJ 541 from freshly harvested seed lot to two year old seed lot. Among seed lots, highest (7.560) mean emergence time was recorded in two year olds seed lot, while lowest in freshly harvested seed. The maximum reduction in mean emergence time (1.963) was observed in variety HJ 541 while it was minimum (1.917) in variety HC 136 from freshly harvested seed lot to two year old seed lot. In natural aged seed lots, only HJ 541 variety of sorghum sustained their germination up to one year showed that sorghum seed can be stored at ambient condition up to one year without loosening its viability. Based on the results, HJ 541 was concluded as superior variety on majority of the viability and vigour constraints results whereas HC 136 was recorded inferior.
Key words:Forage sorghum, emergence time, emergence index, Seedling establishment