The present study was taken up to know the morphological and germination physiognomies of karonda (Carissa carandas) seeds influenced by seed storage period at ambient conditions (26 â°C temperature and 55 % RH). Seeds were subjected to store at 10, 20, 30, 40, 50 and 60 days at room temperature (26â°C). Germination percentage and various morphological characteristics viz., vigour index, fresh weight of shoot and root, dry weight of shoot and root, root to shoot ratio were recorded. Among stored seeds 10 days old seeds recorded highest germina-tion percentage (57 %) and 60 days old seeds recorded lowest germination (20.33 %). At the end (90 days after sowing) 10 days old seeds again possessed higher fresh weight of root (0.300 g) and shoot (1.240 g), dry weight of root (0.103 g) and shoot (0.487 g), root to shoot ratio (0.212) and vigour index (1772.70 cm) among stored seeds. These physiological observations were quite similar with the freshly harvested seed which found maximum values for all the parameters owing to higher moisture content. Karonda seeds showed good viability upto10 days thereafter its value declined and it reached minimum after 60 days of storage.
Germination, Stored Seed, Root to Shoot Ratio, Vigour Index, Karonda
A.O.A.C. (1965). â€œOfficial methods for oil analysis for association of Official Agricultural Chemistsâ€ 10th Ed. Washington, D.C.
Amiruzzaman, M., Islam M.A., Hasan, L., Kadir M. and Rohman M.M. (2013). Heterosis and combining ability in a diallel among elite inbred lines of maize (Zea mays L.). Emir. J. Food Agric. 25 (2): 132-137.
Avinashe, H.A., Jaiwar, S.S., Girase, V.K., Rawool, S.A. and Khanorkar, S.M. (2013). Assessment of heterosis and combining ability for biochemical components in crosses among high quality protein maize (Zea mays L.). J. Crop Sci. 23 (1): 176-184.
Bisen, P., Dadheech, A., Namrata, Nagar, O. and Meena, R.K. (2017). Exploitation of Heterosis in Single Cross Hybrids of Quality Protein Maize (Zea maize L.) for Yield and Quality Traits. Int. J. Bio-res. Stress Manag. 8 (1): 12-19.
Devi, S., Parimala, K., Sravanthi K. (2016). Gene action and combining ability analysis for yield and its component traits in maize and its component traits in maize (Zea mays L.). Bioscan. 11 (2): 1043â€“1047.
El-Badawy, M.E.M. (2013). Heterosis and combining ability in maize using diallel crosses among seven new inbred lines. Asian J. Crop Sci. 5 (1): 1-13.
Elmyhum, M. (2013). Estimation of combining ability and heterosis of quality protein maize inbred lines. Afr. J. Agric. Res. 8 (48): 6309-6317.
Estakhr, A., and Heidari, B. (2012). Combining ability and gene action for maturity and agronomic traits in different heterotic groups of maize inbred lines and their diallel crosses. J. Crop Sci. Biotechnol. 15 (3): 219-229.
Fonseca, S. and Patterson, F.L. (1968). Hybrid vigour in a seven parent diallel cross in common winter wheat (Triticum aestivum L.). Crop Sci. 8: 85-88.
Griffing, B. (1956). Concept of general and specific combining ability in relation to diallel crossing systems. Aust. J. Biol. Sci. 9: 463-493.
Hernandez, H. and Bates, L.S. (1969). A modified method for rapid tryptophan analysis of maize. Research Bulletin No.13, CIMMYT.
Hosana, C., Alamerew, S., Tadesse, B. and Menamo, T. (2015). Test Cross Performance and Combining Ability of Maize (Zea Mays L.) Inbred Lines at Bako, Western Ethiopia. Glob. J. Sci. Front. Res. 15 (4): 1-24
Hussain, M., Kiani, T.T., Shah, K.N., Ghafoor, A., Rabbani, A. (2015). Gene action studies for protein quality traits in (Zea mays L.) under normal and drought conditions. Pak. J. of Bot. 47 (1): 57â€“61.
Ignjatovic-Micic, D., Vancetovic, J., Trbovic, D., Dumanovic, Z., Kostadinovic, M., and Bozinovic, S. (2015). Grain nutrient composition of maize (Zea mays L.) drought-tolerant populations. J. Agric. Food Chem. 63 (4): 1251-1260.
Izhar, T. and Chakraborty, M. (2013). Combining ability and heterosis for grain yield and its components in maize (Zea mays L.) inbreds over environments. Afr. J. Agric. Res. 8 (25): 3276-3280.
Lindner, R.C. (1944). Rapid analytical method for some of the more common inorganic constituents of plant tissues. Plant Physiol. 19: 76-89.
Mbuya, K., Nkongolo, K.K., Kalonji-Mbuyi, A. (2011). Nutritional analysis of quality protein maize varieties selected for agronomic characteristics in a breeding program. Int. J. Plant Breed Genet. 5: 317â€“327.
Mural, R.V. (2012). Combining ability analysis in quality protein maize (Zea mays L.) for grain yield and its component traits. Elec. J. Plant Breed. 3 (2): 747-752.
Ofori, A.P., Ofori, K., Obeng-Antwi, K., Tengan, K.M.L., and Badu-Apraku, B. (2015). Combining ability and heterosis estimate of extra-early quality protein maize (QPM) single cross hybrids. J. Plant breed. crop sci. 7 (4): 87-93.
Panse, V.G. and Sukhatme, P.V. (1985). Statistical Methods for Agriculture Workers. ICAR, New Delhi, 14-33.
Premlatha, M., Kalamani, A., and Nirmalakumari, A. (2011). Heterosis and combining ability for grain yield and quality in maize (Zea mays L.). Adv. Environ. Biol. 5 (6): 1264-1266.
Rajitha, A., Babu, D.R., Ahamed, M.L., and Rao, V.S. (2014). Heterosis and combining ability for grain yield and yield component traits in maize (Zea mays L.). Elec. J. Plant Breed. 5 (3): 378-384.
Singh, P.K., Singh, A.K., Shahi, J.P. and Ranjan, R. (2012). Combining ability and heterosis in quality protein maize. BioScan. 7 (2): 337-340.
Sundararajan, R. and Kumar, P.S. (2011). Studies on heterosis in maize (Zea mays L.). Plant Archives. 11: 55-57.
Villegas, E. and Mertz, E.T. (1971). Chemical screening methods for quality protein maize. Research Bulletin No. 20, CIMMYT.
This work is licensed under Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) © Author (s)