Perceived Impact of Light Quality on Seed Germination and Photosynthetic Pigments in Rice (Oryza sativa L.)
Journal Title: Indian Journal of Biology - Year 2018, Vol 5, Issue 1
Abstract
The present investigations attempted to study the effects of different colour of light on seed germination, hypocotyl growth, mobilization efficiency (ME), vigor index (VI), biomass production and content of photosynthetic pigments (Chl a, Chl b and Carotenoids) in Rice (Oryza sativa L.) cv. Sugandha 5, an important staple food crop of the world. Germination rate was found maximum in red light (98%), followed by blue (94%) and natural light (93%) at 84 hours while, almost no germination was shown in green light even after 96 hours. Yellow light caused significant reduction in % germination (85). The seedlings obtained under different lights revealed variation in biomass production (fresh weight of root and shoot). Root and shoot growth were observed highest in red light and the order of biomass production was red > natural > yellow > blue > green. ME and VI of rice seedlings recorded maximum (128.22 and 43.26 respectively) in red and minimum in yellow light (116.09 and 1.20 respectively). Both, ME and VI could not be estimated under green light due to absence of wellmarked hypocotyl. The contents of photosynthetic pigments in seedlings indicate synthesis of photosynthetic pigments highly dependent on light quality. Chlorophyll b and carotenoids were recorded highest in natural light whereas total chlorophyll and chlorophyll a were highest in red light in comparison to other light treatments. These findings indicate possibility for exploring light quality for manipulation of germination and seedling health of crop plants in general and O. sativa in particular.
Authors and Affiliations
Nand Lal
Keywords
Related Articles
- EP ID EP563073
- DOI 10.21088/ijb.2394.1391.5118.9
- Views 89
- Downloads 0
Effect of Variable Concentration of Dissolved Oxygen (DO) on Population Growth Rate and Food Conversion Ratio in Fish: Model "Molly" [Poecilia sphenops (Valenciennes, 1846)]
Commercial aquaculture is growing worldwide. With fisheries reaching a stagnating phase, India will have to look to aquaculture in different way, in the future to provide fish products that will likely be needed. In view...
Birds Around Mula River Right Bank Canal in Ahmednagar District of Maharashtra (India)
Ornithology is a Greek word: ornitha means chicken and logos mean a science. It is a branch of Zoology or Biology concerned with the scientific study of birds, creatures belonging to class Aves. (1) Aristotle was perhaps...
Haematological Analysis of Leschenault’s Leaf Toad Gecko, Hemidactylus Leschenaultii Dumeril and Bibron 1836
Haematology is useful in understanding the physiological features of lizards. The study was held to investigate the haemo profile of leschenault’s leaf toad gecko in Odisha. The haematological parameters like Haemoglobin...
Clinico-Pathological analysis of Hb S/β+ Th Patients in Odisha: A Tertiary Care Hospital Based Study
India is ethnically a diverse country with marked regional variation. Due to migration, there is constant mixing of people from different regions. These migrations not only helped in creating variations leading to positi...
A Comprehensive Review on the Socio Economic and Technological Profile of River Side Fishermen Community in India
Pollution is, undoubtedly, the most frightening issue of concern among all recent environmental hazards. It has been established that aquatic ecosystem is mostly harmedby the impacts of pollution among all the types of e...