Vol. 11, Issue 3 (2022)

Author(s):
Sahana TV, Shakuntala NM, Suma TC, Doddagoudar SR, Sangeeta IM and Kisan B

Abstract:
The laboratory experiment was conducted during 2020-21 having 7 treatments with 3 replication planned with CRD design. Four varieties of pigeonpea namely GRG 811, TS-3R, GRG 152 and Maruti were exposed to desiccation and rehydration treatments in laboratory. For desiccation treatments seeds were exposed to different days of desiccation for 3, 5 and 7 days respectively. For rehydration treatments seeds were exposed to desiccation for 3, 5, 7 days and rehydrated for one day in petriplate respectively. Results revealed that treatment control i.e., no desiccation treatment (T₁) showed significantly highest Seed germination at first count (34.77%), seed germination at final count (87.08%) shoot length (17.35 cm), seedling vigour index -I (3032), whereas (T₅) desiccation treatment for 3 days + rehydration treatment for one day in petriplate showed significantly highest root length (17.84 cm), seedling dry weight (12.22 mg) and speed of germination (18.98) in the variety TS-3R, followed by GRG 811. lowest was observed in T₄ (desiccation treatment for 7 days) pertaining to Maruti variety. Highest plant height (76.5 cm) was recorded in T₁ in GRG152 variety (69.25 cm) however, there was no plant growth in T₇ treatment of Maruti and first flowering initiation occurred in TS-3R variety.