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Biochemical composition of plant roots

Autor Vijayakumari Guttikonda, Srinivas Karlapudi
en Limba Engleză Paperback – 31 aug 2012
The large amount of plant carbon allocated to roots and the biochemical recalcitrance of roots makes them preeminently suited for climate change mitigation through long term carbon sequestration in soil. Studies were conducted to quantify root and shoot biomass of two varieties each of sorghum and green gram grown under rainfed conditions, and to determine the biochemical composition of shoots and roots. While varieties of both the crops produced several times higher shoot biomass than root biomass, the quantities of root biomass were considerable. Roots were found to have considerably higher lignin content than shoots. The lignin:N ratio, which integrates the effects of lignin and nitrogen, the two most important residue characteristics influencing decomposition, was considerably higher for roots than shoots in both the crops, indicating the higher recalcitrance and lower decomposability of roots compared to shoots. Thus roots may play a significant role in reducing atmospheric carbon dioxide levels by sequestering carbon into stable soil organic matter pools with long turnover times.
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Specificații

ISBN-13: 9783659221002
ISBN-10: 3659221007
Pagini: 80
Dimensiuni: 152 x 229 x 5 mm
Greutate: 0.13 kg
Editura: LAP LAMBERT ACADEMIC PUBLISHING AG & CO KG
Colecția LAP Lambert Academic Publishing

Notă biografică

Vijayakumari Guttikonda is a graduate student. She did her B. Sc. in Biotechnology from Osmania University, Hyderabad, India and her M. Sc. in Environmental Biotechnology from Jawaharlal Nehru Technological University, Hyderabad. Srinivas Karlapudi is a Senior Scientist in Central Research Institute for Dryland Agriculture, Hyderabad, India.