Vol. 10, Issue 10 (2021)

Author(s):
Naveen Kumar Das, Karanjeev Kumar, Samik Sengupta, Sanjay Sahay and Kumari Madhumala

Abstract:
Mango (Mangifera indica L.) is one of the most important fruit crop belongs to the family Anacardiaceae. Bihar has the wider adaptability of mango cultivars rich in bioactive compounds such as ascorbic acid, polyphenols, carotenoids and receives increased attention because of their potential antioxidant activity. Therefore, the present investigation entitled Effect of pollen viability and germination on phenological character of different mango cultivars was carried out during 2017-18 in the Department of Horticulture (Fruit and Fruit Technology), BAC, Sabour. For this experiment seven released mango cultivars viz., Alfazli, Hybrid 60-1 (Sabour Mango-1), Jawahar, Menaka, Prabhashankar, Sabri and Sunder Langra were chosen for the present study. On the basis of data recorded on date of panicle emergence it can be concluded that Jawahar was the earliest and Menaka was the last among all the cultivars evaluated at Sabour condition. Hybrid 60-1(Sabour Mango-1) took the minimum (21 days) and Prabhashankar took the maximum (30 days) period of full bloom. The maximum number of male flower was recorded in Prabhashankar (354.25) While, the cultivar Alfazli (189.75) had the minimum number of male flower in a panicle. Physiological parameters like pollen viability, germination, equatorial length and pollen diameter were recorded in the cultivars. Pollen grain viability were observed under an optical microscope (light microscope at 40X magnification) and subsequently classified as fertile or non-fertile ones. In vitro germination test was assessed in an agar solidifying medium as per the medium proposed by Spiegel-Roy (1980). The maximum pollen viability and germination percentage was recorded in Prabhashankar (86.5%, 76.5%) While, the cultivar Hybride 60-1 (Sabour mango-1) (76.25%, 52.5%), had the minimum pollen viability and germination percentage.