Refine your search
Co-Authors
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Maragatham, N.
- Effect of Elevated Temperature on Rice Phenology and Yield
Abstract Views :434 |
PDF Views:0
Authors
Affiliations
1 Agro Climate Research Centre, Tamil Nadu Agricultural University, Coimbatore-3, IN
2 Agro Climate Research Centre, Tamil Nadu Agricultural University, Coimbatore-3, IN
1 Agro Climate Research Centre, Tamil Nadu Agricultural University, Coimbatore-3, IN
2 Agro Climate Research Centre, Tamil Nadu Agricultural University, Coimbatore-3, IN
Source
Indian Journal of Science and Technology, Vol 6, No 8 (2013), Pagination: 5095-5097Abstract
At present in the context of climate change, temperature is one of the most important environmental factors influencing the rice crop growth, development, and yield. The duration of each phenological stage is influenced by temperature which has direct impact on yield. The objective of this study is to provide an overview of the influence of elevated temperature on rice phenology and accumulated growing degree days. The experiment was conducted during Kharif 2012 under temperature control chamber, in which temperature is elevated from the ambient level (2°C and 4°C) for the entire crop growth period. The results showed that the days taken to attain maturity was less under elevated temperature of 4°C (96 days) and 2°C (102 days) when compared to the ambient temperature (108 days). The accumulated growing degree days were higher under elevated temperature of 4°C and nearer value for 2°C viz., 1641 and 1583 respectively from that of ambient. Under elevated temperature of 4°C and 2°C, the grain yield was 23 and 13.3 percent less from the ambient. The highest grain yield is from the treatment under ambient temperature with 6.2 t/ha followed by 5.3t/ha under 2oC level and 4.7 t/ha at 4oC level. The yield loss under elevated temperature is due to the sterile florets and lesser crop duration.Keywords
Rice, Elevated Temperature, Phenology, Accumulated Degree Days and YieldFull Text
References
- Gao L, Jin Z et al. (1992). Rice clock model: a computer model to simulate rice development, Agricultural and Forest Meteorology, vol 60(1–2), 1–16.
- IPCC (Intergovernmental Panel on Climate Change) (2007). Climate change and its impacts in the near and long term under different scenarios, Climate Change 2007: Synthesis Report, The Core Writing Team, R K Pachauri, A Reisinger Eds., Geneva, Switzerland: IPCC, 43–54.
- Iwata F (1984). Heat unit concept of crop maturity, Physiologi-cal aspects of dry land farming, Gupta U.S. Eds, Oxford and IBH publishers, New Delhi, 351–370.
- Khush G S (1997). Origin, dispersal, cultivation, and variation of rice, Plant molecular biology, vol 35(1–2):25–34.
- Lalitha K, Reddy D R et al. (1999). Influence of temperature and sunshine hours on tiller production in lowland rice varieties, Journal of Agrometeorology, vol 1, 187–190.
- Peng S, Huang J et al. (2004). Rice yields decline with higher night temperature from global warming, Proceedings of the National Academy Sciences, USA, vol 101, No. 27, 9971–9975.
- Ramaraj A P, Jagannathan R et al. (2013). Climate change and rice crop duration, Journal of Agrometeorology, vol 15 (Special Issue-I), 189–191.
- Sheehy J E, Elmido A et al. (2005). Searching for new plant for climate change, Journal of Agricultural Meteorology, vol 60, 463–468.
- Singh S (2001). Growth, yield and biochemical response of rice genotype to low light and high temperature-humidity stress, Oryza, vol 37(1), 35–38.
- Sinha A K and Swaminathan M S (1991). Long-term climate variability and changes, Journal of Indian Geographical Union, vol 7(3), 125–134.
- Venkatramanan V and Singh S D (2009). Differential effects of day and night temperature on the growth of rice crop, Pusa AgriScience, vol 32, 57–62.
- Weerakoon W M W, Maruyama A et al. (2008). Impact of humidity on temperature-induced grain sterility in rice (Oryza sativa L), Journal of Agronomy and Crop Science, vol 194(2), 135–140.
- Yoshida S (1981). Fundamentals of rice crop science, Climate and rice, Los Banos (Philippines): International Rice Research Institute, 87–88.
- Ziska E, Fraser D et al. (1997). Assessing risks of climate variability and climate change for rice, Science, vol 240, 996–1002.
- Pre and Probiotic Intervention Package for Better Gut Health and Improved Immunopotency among Expectant Mothers
Abstract Views :435 |
PDF Views:302
Authors
Affiliations
1 Vellalar College for Women, Erode – 638012, Tamil Nadu,, IN
1 Vellalar College for Women, Erode – 638012, Tamil Nadu,, IN
Source
FoodSci: Indian Journal of Research in Food Science and Nutrition, Vol 3, No 2 (2016), Pagination: 48-53Abstract
Diet rich in probiotics and prebiotics are essential for the maintenance of normal health of individuals in all stages of life. The present study aimed to provide counseling to the pregnant women in order to improve the intake of functional foods. Deworming of the selected pregnant women was done in two stages and they were supplemented with probiotic multiguard capsules. Avoidance of junk food and regular intake of curd based recipes showed beneficial effects.Keywords
Probiotics, Prebiotics, Deworming, Junk Foods, Functional Foods, Expectant Mothers.Full Text
References
- Lipstein HB. Acurrent concept of eclampsia. Americian Journal of Emergency Medicine. 2010; 2(13):223–6.
- James TR, Reid HL, Mullings AM. Are published standards for haematological indices in pregnancy applicable across populations: An evaluation in healthy pregnant Jamaican women. Biological Medical Central Pregnancy and Childbirth. 2008.
- Osonuga IO, Osonuga OA, Onadeko AA, Osonuga AA. Hematological profile of pregnant women in southwest of Nigeria. Asian Pacific Journal of Tropical Disease. 2011; 232–4.
- Bacq Y. The liver in normal pregnancy. Madame curle bioscience database, NCBI bookshelf ID:NBK 6005,2000.
- Jamjute P, Hmad A, Ghosh T, Banfield P. Liver function test and pregnancy. Journal of Maternal-Fetal and Neonatal Medicine. 2009 Mar; 22(3):274–83.
- Joshi D, James A, Quaglia A, Westbrook RH, Heneghan MA. Liver disease in pregnancy. Durham, NC, USA: Duke University Medical Centre; 2010 Feb. p. 594–605.
- Loganathan G, George R, Eapen CE, Mathai M, Jasper P, Seshadri L, Shankar V, Paul S, Joseph G, Balasubramanian KA, Chandy GM. Liver function tests in normal pregnancy a study from Southern India. Indian Journal of Gastroenterology. 2005; 24.
- Green D, Stephen M. Fetal maternal metabolism relationship. Journal Obstetricians and Gynecologists. 2002; 33:11–8.
- Iqbal SA, Akhtar MS, Ansari AK. Assessment of renal function during various stages of pregnancy in women. proc. Pakistan Academic Science. 2003; 40(20):165–71.
- Williams D, Davison J. Chronic kidney disease in pregnancy. British Medical Journal. 2008; 336:211–5.
- Ritchie LD, King JC. Dietary calcium and pregnancy-induced hypertension: Is there a relation? The American Journal of Clinical Nutrition. 2000; 71(suppl):1371S–4S.
- Hanna B. The role of calcium correction during normal pregnancy at 35. Third Trimester in Mosul Oman Medical Journal. 2009; 24(3):188–94.
- Indumati V, Kodliwadmath MV, Sheela MK. The role of serum electrolyte in pregnancy induced hypertension. Journal of Clinical and Diagnostic Research. 2009; 5(1):66–9.
- WHO. The prenatal and immediate pool pattern periods. Bulletin OMS Supplementary. 2003; 67:9–18.
- Volatile Profiles as Affected by Rice Brown Plant Hopper and Yellow Stem Borer in Rice Landraces
Abstract Views :115 |
PDF Views:61
Authors
S. J. Reuolin
1,
N. Muthukrishnan
2,
M. Paramasivam
1,
R. P. Soundararajan
3,
K. S. Subramanian
1,
N. Maragatham
1
Affiliations
1 Tamil Nadu Agricultural University, Coimbatore, 641003, IN
2 Agricultural College and Research Institute, Vazhavachanur, Thiruvannamalai 606753, IN
3 Horticultural College and Research Institute for Women, Navalur Kuttapattu, Trichy 620027, IN
1 Tamil Nadu Agricultural University, Coimbatore, 641003, IN
2 Agricultural College and Research Institute, Vazhavachanur, Thiruvannamalai 606753, IN
3 Horticultural College and Research Institute for Women, Navalur Kuttapattu, Trichy 620027, IN
Source
Indian Journal of Entomology, Vol 84, No 3 (2022), Pagination: 573-581Abstract
Rice (Oryza sativa L.,) plants release a complex profile of volatile organic compounds. Present study investigates the differences in volatile compounds from four rice landraces viz., Karuthakar, Norungan, Thavala Kanan and Varappu Kudaichan each under four conditions like healthy, mechanically damaged, and the ones infested by the brown plant hopper Nilaparvata lugens Stal and yellow stem borer Scirpophaga incertulas (Wlk.). The volatiles were collected using air entrainment method and characterized by the GCMS. Statistical analysis tools like clustering, principal component analysis and partial least square discriminant analysis were applied. Clear differences among the treatments were observed and certain volatile compound groups like terpenoids (squalene), unsaturated fatty acids (n-hexadecanoic, tetradecanoic and pentadecanoic acids), alkanes (heptacosane, tetracosane) were found. The statistical test of Partial Least Square Discriminant Analysis was found to be satisfactory in determining the compounds responsible for variations in treatments.Keywords
Rice landraces, Nilaparvata lugens, Scirpophaga incertulas, secondary metabolites, herbivore induced plant volatiles, terpenoids, fatty acids, esters, GCMS, Clustering analysis, multivariate analysisFull Text
References
- Chen J N, Gao Q, Liu C J, Li D J, Liu C Q, Xue Y L. 2020. Comparison of volatile components in 11 Chinese yam (Dioscorea spp.) varieties. Food Bioscience doi: https://doi.org/10.1016/j.fbio.2020.100531.
- Dutton A, Mattiacci L, Amadò R, Dorn S. 2002. A novel function of the triterpene squalene in a tritrophic system. Journal of Chemical Ecology 28(1): 103-116.
- Hoballah M E F, Tamo C, Turlings T C. 2002. Differential attractiveness of induced odors emitted by eight maize varieties for the parasitoid Cotesia marginiventris: is quality or quantity important? Journal of Chemical Ecology 28(5): 951-968.
- Jones V P, Steffan S A, Wiman N G, Horton D R, Miliczky E, Zhang Q H, Baker C C. 2011. Evaluation of herbivore-induced plant volatiles for monitoring green lacewings in Washington apple orchards. Biological Control 56(1): 98-105.
- Krips O E, Willems P E L, Gols R, Posthumus M A, Gort G, Dicke M. 2001. Comparison of cultivars of ornamental crop Gerbera jamesonii on production of spider mite-induced volatiles, and their attractiveness to the predator, Phytoseiulus persimilis. Journal of Chemical Ecology 27(7): 1355-1372.
- Murungi L K, Kirwa H, Salifu D, Torto B., 2016. Opposing roles of foliar and glandular trichome volatile components in cultivated nightshade interaction with a specialist herbivore. PloS One 11(8): 1-20.
- Nakashima Y, Birkett M A, Pye B J, Powell W. 2006. Chemically mediated intraguild predator avoidance by aphid parasitoids: interspecific variability in sensitivity to semiochemical trails of ladybird predators. Journal of Chemical Ecology 32(9): 1989-1998.
- Pare P W, Tumlinson J H. 1999. Plant volatiles as a defense against insect herbivores. Plant Physiology 121(2): 325-332.