A field experiment was carried out at Department of Horticulture, Vasantrao Naik Marathwada Krishi Vidyapeeth Parbhani. (Maharashtra) during kharif season of the year 2017-2018. The experiment was laid out in Factorial Randomised Block Design with thirty treatment combinations. The treatments comprised of two factors i.e. factor A and factor B. Factor A consist of 3 varieties (V1-Raja Pandharpuri,V2-Brown and V3-Shinaton) and factor B consist of 10 levels of chemical mutagen (colchicine T1 -0.01%, T2 -0.02%, T3 -0.03%, T4 -Ethylmethanesulphonate (EMS) 0.01%, T5 -0.05%, T6 -0.1%, T7 -0.5%, T8 -1.0%, T9 -1.5%,T10 -Control) in Chrysanthemum. The different treatments to rooted cuttings of chrysanthemum varieties with colchcine and EMS had significantly influenced the vegetative and flowering characters and also create the variability. Significant reduction occurs in both colchicine and EMS treated seedlings of chrysanthemum varieties in terms of plant height, branches plant -1 , plant spread, Diameter of main stem and Number of leaves plant -1 Whereas leaf area and Petiole length was increased due to the colchicines and decreased due to EMS treated population of chrysanthemum varieties over control. The higher dose of colchicine and EMS delayed the flower bud initiation, flower opening and 50% flowering.

The investigation entitled "Effect of different horticultural techniques on quality flower production of Gladiolus grandiflorus cv. PDKV Gold" was carried out during kharif season of the year 2017-18 and 2018-19 at Floriculture unit, Department of Horticulture, Dr. PDKV., Akola. Vegetative and flowering parameter of gladiolus as affected by different horticultural techniques such as corm sizes viz. jumbo size corm (> 5.1 cm), large sized corm (3.8 to 5.0 cm), medium (3.2 to 3.7 cm) small size corm (3.1 to 2.5 cm) mechanical removal of apical bud (3.8 to 3.2 cm), half corm division (3.2 to 3.7 cm), soaking of corms in 200 ppm GA3 solution for 24 hr (3.2 -3.7 cm) and clipping of leaves (3.2 to 3.7 cm) were evaluated under natural agro-climatic conditions of Akola. The experiment was laid out in accordance with Complete Randomized Design with eight treatments replicated three times. Regarding growth parameters it was observed that days required for sprouting of corm, number of shoots per corm, plant height, number of leaves per plant, (at 30, 60, 90 and 120 DAP) length and breadth of leaves, jumbo size corm perform the best as compared to medium, small corms and other treatments with maximum values (3.93 days), (2.03), (49.10, 91.63, 111.27 and 113.10 cm), (3.33, 6.13, 8.87 and 9.33 cm), (85.55 and 2.82 cm). Similar results were observed with flowering parameters. In flowering parameter such as minimum days for spike emergence, days to 1 st floret opening, days to 50% flowering (77.78, 82.08, 87.13 days respectively) and maximum number of spikes plant -1 (1.67) and ha -1 (1.48 lakh) was recorded in jumbo size corm than large and small size corm. In case of quality parameter maximum length of spike (103.47 cm), diameter of spike (1.44 cm), length of rachis (55.80 cm), number of florets spike -1 (17.88), diameter of open floret (9.32 cm) and vase life of spike (10.95 days) was observed by plants raised from jumbo sized corm.

An experiment entitled "Yield and quality of chrysanthemum varieties as influenced by chemical mutagens in VM1 generation" was carried out at Department of Horticulture, Vasantrao Naik Marathwada Krishi Vidyapeeth Parbhani. (Maharashtra) during kharif season of the year 2017-2018. The experiment was laid out in Factorial Randomised Block Design with thirty treatment combinations. The treatments comprised of two factors i.e. factor A and factor B. Factor A consist of 3 varieties (V1-Raja Pandharpuri, V2-Brown and V3-Shinaton) and factor B consist of 10 levels of chemical mutagen (colchicine T1 -0.01%, T2 -0.02%, T3 -0.03%, T4 -Ethylmethanesulphonate (EMS) 0.01%, T5 -0.05%, T6 -0.1%, T7 -0.5%, T8 -1.0%, T9 -1.5%, T10 -Control) in Chrysanthemum. The different treatments to rooted cuttings of chrysanthemum varieties with colchcine and EMS had significantly influenced the yield and quality characters and also create the variability. Significant reduction occurs in both colchicine and EMS treated seedlings of chrysanthemum varieties in terms of number of flowers plant -1 , yield of flowers plant -1 , number of ray florets flower -1 , peduncle length, peduncle diameter, vase life of cut flowers, Whereas weight of single flower and diameter of flower was increased due to the colchicines and decreased due to EMS treated population of chrysanthemum varieties over control.