Ratooning Potential of Interspecific NERICA Rice Varieties (Oryza glaberrimaxOryza sativa)

Sanni, Kayode; Ojo, D. K.; Adebisi, M. A.; Somado, Eklou A.; Ariyo, O. J.; Sié, Moussa; Akintayo, Inoussa; Tia, Ding; Ogunbayo, S. A.; Cissé, Boubakary; Sikirou, Mouritala; Adekoya, Modinat A.

doi:10.3923/ijb.2009.112.115

Cited by 15 publications

(10 citation statements)

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“…벼의 경우도 움벼 재배는 미국 (Beachell & Evatt, 1960), 스위스 (Evans, 1957), 인도 (Gupta & Mitra, 1948), 태국 (Iso, 1954), 필리핀 (Parago, 1963)과 중국 (Yang et al, 1958)에서 예전부터 행해져온 농법이며, 인도 (Reddy et al, 1979)와 에 티오피아 (Prashar, 1970) 등 열대지역 (Chauhan et al, 1985 (Dustin et al, 1937). 움현상(ratooning)을 이용한 작물 재배법은 포장준비 나 이식 작업이 필요하지 않고, 물관리 등에 대한 노력이 본 포재배의 50~60% 만으로 재배가 가능하다 (Elias, 1969) (Sanni et al, 2009) 본포작물의 물, 해충, 병관리 등이 움벼생장을 좌우한다 (Rehman et al, 2007 (Bahar & Datta, 1977). 상대적으로 불임 이삭을 많이 생산 (Quddus, 1981;Samson, 1980)…”

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The Ratooning Potential of Several Early-Ripening Rice Cultivar in Korea

Shin¹,

Kim²,

Park³

2015

Korean J. Crop Sci.

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Rice ratooning is the production of a second rice crop from the stubble left behind after the main-crop harvest. The main advantage of rice ratooning is that in areas where rice is the main crop, double crop of rice can be grown for additional returns. Eight cultivars of rice were tested for estimation their ratooning ability. The main crop was harvested at mass maturity, after which the tillers were mowed to stubbles of about 10 cm tall. And then left without any further input, until the ratooned plant were ready for harvest. Highly significant variations were detected in the ratoon performance among cultivars, with ratoon ability ranging from 0% ('Unkwang', 'Jopeyong', 'Odae', 'Nokyang') to 33% ('Jinbuol') in their grain yield. The maximum grain yield from ratoon rice was 202 and 203 kg/10a for 'Jinbuol' and 'Joun' followed by 'Junamjoseng' 174kg/10a. Protein and amylose contents of ratoon rice were more increased than those of main rice. The platability value of cooked rice of ratoon was lower than that of main crop. Germination rate of the previous year's harvest of rice was not significantly different between ratoon and main crop. This rice ratooning system requires short duration, creating possibility for growing another crop in the same cropping year and offers an opportunity to increase cropping intensity per unit of cultivated areas.

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The Ratooning Potential of Several Early-Ripening Rice Cultivar in Korea

Shin¹,

Kim²,

Park³

2015

Korean J. Crop Sci.

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“…81% of our polymorphic sites were on genic regions, and 43% were on promoter regions. In the NU varieties, divergence was observed in quantitative agronomic traits and apparent phenotypes (Ikeda et al 2009 ; Sanni et al 2009 ; Fukuta et al 2012 ; Saito et al 2012 ; Rodenburg et al 2015 ). Studies over the past years have also accumulated data that captures the physiological behavior of the NUs and their divergence in a biotic stress responses (Yamamoto et al 2011 ; Atayese et al, 2016 ; Sikuku et al 2012 ; Sakariyawo et al 2015 ).…”

Section: Discussionmentioning

confidence: 99%

Comparative whole genome re-sequencing analysis in upland New Rice for Africa: insights into the breeding history and respective genome compositions

Yamamoto

Garcia

Suzuki

et al. 2018

Rice

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BackgroundIncreasing rice demand is one of the consequences of the steadily improving socio-economic status of the African countries. New Rice for Africa (NERICA), which are interspecific hybrids between Asian and African rice varieties, are one of successful breeding products utilizing biodiversity across the two different rice crop species. Upland NERICA varieties (NU) exhibit agronomic traits of value for the harsh eco-geography, including shorter duration, higher yield and stress tolerance, compared to local African varieties. However, the molecular basis of the traits in NU varieties is largely unknown.ResultsWhole genome re-sequencing was performed of four NU lines (3, 4, 5, and 7) and for the parental Oryza sativa WAB56–104 and Oryza glaberrima CG14. The k-mer analysis predicted large genomes for the four NU lines, most likely inherited from WAB56–104. Approximately 3.1, 0.10, and 0.40 million single nucleotide polymorphisms, multi nucleotide polymorphisms, and short insertions/deletions were mined between the parental lines, respectively. Integrated analysis with another four NU lines (1, 2, 8, and 9) showed that the ratios of the donor CG14 allelic sites in the NU lines ranged from 1.3 to 9.8%. High resolution graphical genotype indicated genome-level similarities and common genetic events during the breeding process: five xyloglucan fucosyltransferase from O. glaberrima were introgressed in common. Segregation of genic segments revealed potential causal genes for some agronomic traits including grain shattering, awnness, susceptibility to bacterial leaf bright, and salt tolerance. Analysis of unmapped sequences against the reference cultivar Nipponbare indicated existence of unique genes for pathogen and abiotic stress resistance in the NU varieties.ConclusionsThe results provide understanding of NU genomes for rice improvement for Africa reinforcing local capacity for food security and insights into molecular events in breeding of interspecific hybrid crops.Electronic supplementary materialThe online version of this article (10.1186/s12284-018-0224-3) contains supplementary material, which is available to authorized users.

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“…Genotipe yang berbeda memiliki perbedaan kemampuan meratun pada padi (Balasubramanian et al, 1992) dan tebu (Shah et al, 2008), juga perbedaan hasil ratun pada padi (Akhgari et al, 2013;Sinaga et al, 2015) dan sorgum (Hassan et al, 2015). Produksi ratun ditentukan oleh keragaan tanaman utama (Harrel et al, 2009;Sanni et al, 2009) dan teknik panen (Susilawati et al, 2012). Hasil tanaman utama juga memiliki korelasi nyata dan positif dengan hasil tanaman ratun (Liu et al, 2015).…”

Section: Pendahuluanunclassified