Vol. 8, Issue 1 (2020)
Dry matter production and accumulation in different plant parts of rice cultivars as influenced by irrigation regimes and systems of cultivation
Author(s): Venkataravana Nayaka GV, Prabhakara Reddy G and Mahendra Kumar R
Abstract: Alternate wetting and drying (AWD) irrigation has been widely adopted to replace continuous flooding (CF) irrigation for saving water and increasing water productivity in irrigated rice systems. There is limited information on the performance of different rice cultivars under different establishment methods. A field experiment was conducted on a clay loam soil at Indian Institute of Rice Research (IIRR) formerly Directorate of Rice Research (DRR), Rajendranagar, Hyderabad, Telangana during the kharif seasons of 2017 and 2018. to study the “productivity and water use efficiency of rice cultivars under different irrigation regimes and systems of cultivation” The treatments consisted of two irrigation regimes Alternate wetting and drying and Saturation as main plot treatments, three establishment methods System of Rice Intensification (SRI), Drum Seeding (DS) and Normal transplanting (NTP) as sub plot treatments and four Cultivars namely DRR Dhan 42, DRR Dhan 43, MTU-1010 and NLR-34449 as sub-sub plot treatments summing up to 24 treatment combinations laid out in split-split plot design with three replications. Among the cultivars, DRR Dhan 43 registered higher dry matter production at 90 DAS/DAT and harvest as compared to other cultivars. Whereas MTU-1010 and NLR-34449 recorded on par dry matter production values at all the crop growth stages during both the years of study. However DRR Dhan 42 produced the lowest dry matter production compared to other genotypes. DRR Dhan 43 recorded higher dry matter accumulation (g m-2) in root, stem and leaves at all the crop growth stages, during both the years of the study over other cultivars.
DOI: 10.22271/chemi.2020.v8.i1x.8498
Pages: 1641-1645 | 457 Views 66 Downloads
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How to cite this article:
Venkataravana Nayaka GV, Prabhakara Reddy G, Mahendra Kumar R. Dry matter production and accumulation in different plant parts of rice cultivars as influenced by irrigation regimes and systems of cultivation. Int J Chem Stud 2020;8(1):1641-1645. DOI: 10.22271/chemi.2020.v8.i1x.8498
