GUPTA, Y.C.SHARMA, SHWETA2017-05-082017-05-082014http://krishikosh.egranth.ac.in/handle/1/5810010766ABSTRACT The present Studies entitled “Effect of plant spacing on flower and seed production in gomphrena (Gomphrena globosa L.)” was carried out at the experimental farm of Department of Floriculture and Landscaping, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan. The experiment was laid out in a Randomized Block Design (Factorial) with four levels of spacings viz., (20 x 15 cm, 20 x 20 cm, 20 x 25 cm, 20 x 30 cm) and three strains i.e. GGW (Gomphrena globosa ‘White’), GGM (Gomphrena globosa‘Magenta’) and GGP (Gomphrena globosa‘Pink’). Among different plant spacings, closest spacing of 20 x 15 cm gave best results forplant height (59.10 cm), earlier arrival of visible flower bud stage (52.00 days), flower yieldper square meter (1,253.13 g) and seed yield per square meter (83.34 g). However, plant spread (44.88 cm), number of flowers per plant (72.11), flower diameter (2.31 cm), duration of flowering (96.55days), weight of flower per plant (65.79 g) and seed yield per plant (83.34g) were recorded maximum with 20 x 30 cm spacing. Among strains, GGM gave best results for plant height (54.65 cm), weight of flowers per plant (57.00 g), seed yield per plant (3.57 g), 1000 seed weight (3.49 cm), flower yield per square meter (1,253.13 g) and seed yield per square meter (75.14 g). Based upon the overall performance of different strains, a closest spacing of 20 x 15 cm have been recommended.ennullThesis