RESPONSE OF ROSE VARIETIES TO PRUNING SEVERITY UNDER OPEN CONDITIONSChitla N.R. Santhoshini and D.M. PanchbhaiAbstract A field experiment was conducted at Farm of Horticulture Section, College of Agriculture, Nagpur, India on âResponse of Rose varieties to pruning severity under open conditionsâ during winter season. The research was carried out to study the response of Rose varieties to pruning severity for growth, flowering and yield and to find out the suitable pruning severity for better flower yield of different rose varieties. The experiment was laid in Factorial Randomized Block Design with three replications and twelve treatment combinations. The treatments comprised of three varieties viz. Toro, Double Delight and Gladiator as factor âAâ and four pruning severity levels viz. control, light, medium, heavy as factor âBâ. The results of experiment revealed that minimum days to sprouting after pruning, blind shoots per plant was seen in Gladiator and light pruning; sprouts plant-1, lateral shoots plant-1 were maximum in Gladiator and medium pruning; leaves per flowering shoot, shoot length and intermodal length of shoot were maximum in Gladiator and heavy pruning. In floral characters, earliness in flower bud emergence, days to harvest from bud opening, maximum duration of flowering were noted with Gladiator and light pruning; flower quality parameters like length of flower stalk, diameter of flower stalk, length of flower bud, diameter of flower bud, diameter of fully opened flower, number of petals plant-1, vase life of cut flowers were superior in Gladiator and heavy pruning. In yield parameters, maximum number of flowers plant-1, plot-1 and ha-1 were found maximum in Gladiator and medium pruning. |