Influence of NPK nutrients on yield and quality in rose under polyhouse conditions

The experiment was conducted at N ARP, Ganeshkhind, Pune, to study the effect of various nutritional levels on yield and quality of rose cv. First Red with nine treatments and three replications. The results of the study indicate that higher levels of nitrogen and phosphorus (400 ppm/plant/week and 200 ppm/plant/week, respectively) produced more number of flowers/plant (29.42 and 27.46, respectively) with maximum stalk length (72.86 cm and 62.53 cm, respectively). The interaction treatment of 400:200:200 ppm NPK/plant/week produced more number of flowers/plant (33.46), flowers with longer stalk length (75.60 cm), more number of flowering shoots/plant (4.40) and larger flower hud size (2.40 cm).