Dudi, O.P.Satyawan Singh2016-11-302016-11-302006http://krishikosh.egranth.ac.in/handle/1/88327The present study was carried out during the year 2004-2005 with a view to standardize the effect of spacing and nitrogen in French marigold (Tagetes patula L.) on growth, flowering, flower yield, seed quality and seed yield under agro climatic conditions of Haryana. To achieve these objectives an experiment was conducted with three levels of spacing (30 cm x 30 cm, 30 cm x 45 cm and 30 cm x 60 cm) and four levels of nitrogen (0, 10, 20 and 30 g m-2). The experiment on spacing and nitrogen requirement of French marigold revealed that maximum plant spread, number of branches per plant, days to bud initiation, number of buds per plant, duration of flowering, number of flowers per plant, flower yield per plant and seed yield per plant were found maximum at the spacing level of 30 cm x 60 cm in combination with a nitrogen dose of 20 g m-2 whereas, flower size, flower weight, 1000 seed weight, standard germination, vigour index-I and vigour index-II was found maximum at a spacing of 30 cm x 45 cm in combination with a nitrogen dose of 20 g m-2.enThesis