Next Article in Journal
Effects of Biostimulant and Organic Amendment on Soil Properties and Nutrient Status of Lactuca Sativa in a Calcareous Saline-Sodic Soil
Previous Article in Journal
Phenotypic Variation and Selection for Cold-Tolerant Rice (Oryza sativa L.) at Germination and Seedling Stages
Open AccessCommunication

Assessment of Natural Ageing Related Physio-Biochemical Changes in Onion Seed

Department of Vegetable Science, Punjab Agricultural University, Ferozepur Road, Ludhiana 141027, India
Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Camino de Vera 14, 46022 Valencia, Spain
Department of Vegetable Science, CCS Haryana Agricultural University, Main Road, Hisar 125004, India
Author to whom correspondence should be addressed.
Agriculture 2019, 9(8), 163;
Received: 24 June 2019 / Revised: 21 July 2019 / Accepted: 24 July 2019 / Published: 25 July 2019
This research was performed for a period of three years to determine the effect of natural seed ageing on different physiological and biochemical changes in three extensively cultivated onion cultivars in Northern India. Seed storage studies showed that germination percent, seed viability and other seed quality parameters decreased significantly with increasing storage time. The onion seed can be stored for a maximum period of one year under ambient conditions to maintain required germination percentage (>70%). Overall, Hisar Onion-4 stored better when compared to Hisar Onion-3 and Hisar-2. As the ageing progressed the seed antioxidants, namely superoxide dismutase (SOD), catalase (CAT), dehydrogenase (DHA) and peroxidase (POD) decreased significantly (p < 0.05) in all cultivars whereas, the electrical conductivity (EC) of seed leachates increased significantly. Under the field conditions, seedling establishment percent (SE) onion seed was positively correlated (R2 = 0.98; p < 0.05) with germination percent (GP). Overall, more than one year period of seed storage was associated with poor germination and seedling establishment potential in onion. View Full-Text
Keywords: ageing; antioxidants; germination; onion; seed storage ageing; antioxidants; germination; onion; seed storage
Show Figures

Figure 1

MDPI and ACS Style

Brar, N.S.; Kaushik, P.; Dudi, B.S. Assessment of Natural Ageing Related Physio-Biochemical Changes in Onion Seed. Agriculture 2019, 9, 163.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop