Studies on seed germination and seedling evaluation of tuberose (Polianthes tuberosa L.) hybrids

Abstract

The experiment was conducted in the Division of Floriculture and Medicinal crops, Indian Institute of Horticultural Research, Bengaluru, to study seed germination and evaluate the seedling performance. Among the different cross combinations, the seeds obtained from the cross IIHR-6 x Mexican Single recorded highest seed germination (72.00%) and the maximum number of days for germination was observed in the seeds obtained from Arka Nirantara x IIHR-6 (46.50 days) whereas the seeds of IIHR-6 x Arka Nirantara germinate the earliest (32.00 days). Arka Sugandhi x IIHR-6 seeds gave the maximum shoot length (16.40 cm) whereas IIHR-6 x Arka Nirantara seeds gave maximum root length (4.89 cm). Vigour index was the highest in the seeds obtained from the cross IIHR-6 x Mexican single (1242.14).