Dr. Ashutosh MishraKAMAL KISHOR NAGAR2017-07-242017-07-242017-07-24http://krishikosh.egranth.ac.in/handle/1/5810025979A field experiment was conducted during Rabi season of 2015-16 to study. The“Effect of Planting Dates and Varieties on Growth, Yield and Quality on Gladiolus (Gladiolus hybridusHort.) under sub-humid zone of Rajasthan”at the Instructional Farm, Department of Floriculture & Landscaping, College of Horticulture & Forestry, Jhalarapatan, Jhalawar. The experiment consisted of 05 varieties ‘African Star’ ‘Hunting Song’, ‘Legend’,‘PusaSrijana’,‘ ‘Snow Princess’ and 3date of planting10th October, 25thOctober and 9th November laid out in split plot design with three replications. The results of the present investigation depicted that ‘Hunting Song’ recorded the maximum plant height (112.81 cm), number of leaves per plant (8.51), main stem diameter (1.47 cm), minimum number of days for spike emergence (63.51 days), number of days to 1st floret opening from spike emergence (14.07 days), maximum number of spike per plant (2.73), number of spike per hectare (3.07 lakh), number of florets per spike (14.97),spike length (85.13 cm), rachis length (54.77 cm), vase life of spikes (13.00 days), number of corms per plant (3.40), number of corms per plot (28.55), number of cormels per plant (44.96) and maximum number of cormels per plot (304.44). Similarly, 10th October planting recorded the maximum plant height (106.79 cm), number of leaves per plant (8.04), main stem diameter (1.38 cm), minimum number of days for spike emergence (63.57 days), number of days to 1st floret opening from spike emergence (13.84 days), maximum number of spike per plant (2.66), number of spike per hectare (2.69 lakh), number of florets per spike (14.12), highest spike length (80.28 cm), rachis length (46.62 cm), vase life of spikes (9.93 days), number of corms per plant (3.35), number of corms per plot (27.59), number of cormels per plant (34.04) and maximum number of cormels per plot (227.26). Overall the variety Hunting Song (V2) planted on 10th October planting (D1) was found better treatment combination. The treatment V2D1recorded the maximum plant height (116.10 cm), number of leaves per plant (8.77), main stem diameter (1.5 cm),minimum number of days for spike emergence (59.66 days), maximum number of spike per plant (3.21), number of spike per hectare (3.61 lakh), number of florets per spike (15.8), highest spike length (91.8 cm), rachis length (57.9 cm), vase life of spikes (13.0 days), floret diameter (10.04 cm), number of corms per plant (3.66), number of corms per plot (31.66), number of cormels per plant (57.66), number of cormels per plot (350.66), diameter of corm (7.13 cm) and maximum weight of corms (86.03 g). Correlation with regression studies showed that between dates of planting with vegetative, flower yield, quality and corm yield characters has been depicted. Plant height had positive correlation with number of leaves per plant, leaf length, leaf width, main stem diameter, number of spikes per plant, number of spikes per hectare, number of floret per spike, spike length, rachis length, floret diameter, number of corm per plant, number of cormels per plant, diameter of corm and weight of corm.ennullThesis