Hybrids and cultivars of single type tuberose was evaluated to fulfill the need to develop new hybrids as demanded by commercial growers. Evaluation of fifteen genotypes showed significant variation in growth, floral and bulb characters. Cultivar Arka Prajwal was significantly superior over all genotypes, which recorded least number of days for opening of 1st floret (78.55 days) with maximum diameter of spike (1.18 cm), length of floret (6.05 cm), weight of individual floret (3.12 g) and weight of spike (121.43 g).The hybrid genotype L1P4 (Variegated X Phule Rajani) was observed to be superior in terms of rachis length (39.78 cm), inter-nodal length (7.25 cm), length of bulb (8.09 cm), diameter of bulb (3.76 cm) and diameter of bulb-lets (1.85 cm). Among the hybrid genotypes L1P4 also recorded maximum plant height (116.39 cm), spike length (109.58 cm), weight of cut spike (105.08 g) and vase life (11.00 days). However, it was foundto be at par for number of florets per spike (57.25), length of floret (5.92 cm) and number of spikes per clump (10.14) with all other cultivars and hybrids tested. From the overall performance, it was found that the cultivar Arka Prajwal was the best. Genotype L1P4 found promising for loose as well as cut flower production because of its number of florets, inter-nodal length and spikes per clump which are important characters considering loose flower for taking maximum number of pickings. However, characters such as rachis length, spike length, vase life and weight of spike which are imperative for cut flowers are also noted superior in genotype L1P4.
The present investigation was carried out during the year 2015-2016 at Modibaug garden of Horticulture Section, College of Agriculture, Pune. The experiment was laid out in Randomized Block Design with two replications and forty genotypes. The genotype MG-10-2 recorded significantly highest plant height (80.52 cm), (99.50 cm) and (102.86 cm) at 90, 120 and 150 days after transplanting respectively. The genotype MG-9-1 (90.28 cm) recorded significantly maximum plant spread at (E-W) direction and the genotype MG-3-2 (80.34 cm) at (N-S) direction at 90 DAP. Significantly maximum number of primary and secondary branches per plant was recorded in the genotypes MG-7-2 (21.48) and MG-10-2 (58.50) respectively. The genotype MG-9-1 showed significantly early initiation of flowering (41.23 days) after transplanting. The genotype MG-9-1 showed early 50 percent flowering (64.38 days) but the treatment differences were not significant. The genotype MG-7-2 recorded significantly maximum flower diameter (6.93 cm) followed by the genotype MG-9-1 (6.82 cm) and both genotypes are on par with each other. Significantly more number of ray florets per flower was noticed in the genotypes MG-5-1 (148.40), MG-5-2 (148.20) and MG-9-1 (148.05). The genotype MG-2-2 recorded significantly maximum flower stalk length (17.62 cm). The flower stalk thickness of different genotypes of gaillardia ranged from 2.8 to 3.1 mm but the treatment differences were nonsignificant for this character. Significantly more number of flowers per plant was recorded in the genotype MG-2-2 (288.35) followed by the genotypes MG-7-1 (263.23) and MG-9-1 (242.43). The genotypes MG-9-1 and MG-7-2 recorded significantly maximum weight of 100 flowers (333 g). The weight of flowers per plant, yield of flowers per plot and yield of flowers per hectare were recorded significantly highest in MG-9-1 (631.00 g, 12.02 kg and 33.30 tonne) respectively. The Aureolin flower colour, Lemon Yellow flower colour, Buttercup Yellow flower colour and Indian Yellow flower colour were observed in two, twelve, twelve, fourteen genotypes of gaillardia respectively The shape of petals of genotype MG-4-2, MG-5-3, MG-6-2, MG-7-2, MG-10-1 and MG-10-5 of gaillardia had narrow with blunt tip and remaining genotypes had shown narrow with pointed tip. The genotype MG-6-1 and MG-14-1 had dense pubescence. The genotypes MG-2-1, MG-3-1, MG-5-4, MG-7-1 and MG-10-2 had medium pubescence. The remaining 33 genotypes had comparatively low pubescence. K e y w o r d sGaillardia (Gaillardia pulchella L.) genotypes, Quantitative and qualitative characters
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