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Genetic variability and diversity of mutant rice revealed by quantitative traits and molecular markers Agrociencia
Oladosu,Yusuff; Rafii,Mohd Y.; Abdullah,Norhani; Malek,Mohammad Abdul; Rahim,Harun A.; Hussin,Ghazali; Ismail,Mohd Razi; Latif,Mohammad Abdul; Kareem,Isiaka.
Genetic variability with mutagenic agents has been employed in plant breeding due to its significant contribution to the improvement of the existing rice genotypes by using genetically diverse parents. This study evaluated the genetic variability and diversity of mutant rice using quantitative traits and inter-simple sequence repeats (ISSR) molecular markers. A field experiment was carried out on M5 generation of 31 developed mutant lines and their parent (control). Morphological traits and 25 ISSR molecular markers were used as tools for determining cultivar identities and genetic diversity. The selected primers generated 443 clear polymorphic bands with an average number of 18 per primer. The bands were 85.10 % polymorphic. Un-weighted Pair Group of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant breeding; Genetic diversity; Molecular marker; Mutagenicity; Polymerase chain reaction (PCR).
Ano: 2015 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952015000300002
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Inheritance patterns and identification of microsatellite markers linked to the rice blast resistance in BC2F1 population of rice breeding Bragantia
Miah,Gous; Rafii,Mohd Y.; Ismail,Mohd Razi; Puteh,Adam Bin; Rahim,Harun Abdul; Ashkani,Sadegh; Latif,Abdul.
The BC2F1 population was derived from a cross between rice variety, MR219 (susceptible to blast) and Pongsu Seribu 1 (resistant to blast). The objectives of this research were to know the inheritance pattern of blast resistance and to identify the linked markers associated with blast resistance in BC2F1 population. Sixteen microsatellite markers were found as polymorphic between the parents related to blast resistant genes (Pi-genes). Among the selected blast resistant linked markers, two markers RM6836 and RM8225 showed expected testcross ratio (1:1) for single-gene model in the BC2F1 population with the association between resistant and susceptible progeny. A total of 333-BC2F1 plants were challenged with the most virulent pathotype P7.2 of Magnaporthe...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Blast inheritance; Microsatellite markers; BC2F1 population; Rice variety.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000100033
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Effect of plastic mulch on growth and yield of chilli (Capsicum annuum L.) BABT
Ashrafuzzaman,M; Halim,M. Abdul; Ismail,Mohd Razi; Shahidullah,S.M; Hossain,M. Alamgir.
In this work a field study was conducted to evaluate the effect of coloured plastic mulch on growth and yield of chilli from October 2005 to April 2006. The plastic mulches were transparent, blue, and black and bare soil was the control. Different mulches generated higher soil temperature and soil moisture under mulch over the control. Transparent and blue plastic mulches encouraged weed population which were suppressed under black plastic. Plant height, number of primary branches, stem base diameter, number of leaves and yield were better for the plants on plastic. At the mature green stage, fruits had the highest vitamin-C content on the black plastic. Mulching produced the fruits with the highest chlorophyll-a, chlorophyll-b and total chlorophyll...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Capsicum annum; Chilli; Growth; Plastic mulch; Yield; Yield attributes.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000200014
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Impact of cyclic water stress on growth, physiological responses and yield of rice (Oryza sativa L.) grown in tropical environment Ciência Rural
Zain,Nurul Amalina Mohd; Ismail,Mohd Razi; Puteh,Adam; Mahmood,Maziah; Islam,M Robiul.
A series of water stress cycles [5, 10, 15, 20, 25 and 30 days of irrigation intervel including control flooded (CF), control saturated (CS)] were exposed to investigate the impact of cyclic water stress on growth, physiological responses and yield of a famous Malaysian rice variety, MR220. The study also aimed to determine optimum irrigation schedule for better production of rice. It was observed that grain yield, total biomass, filled spikelet, 1000 grain weight, total panicle, tillers mortality, plant height and number of tillers per plant reduces with increased duration of water stress cycles. Grain yield was higher both in CF and CS condition and those are statistically identical to 5 days of stress cycle or irrigation intervel. The present experiment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Water stress; Prolein accumulation; Antioxidant enzyme; Rice variety MR220.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014001202136
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PERFORMANCE OF YIELD AND YIELD CONTRIBUTING CHARACTERISTICS OF BC2F3 POPULATION WITH ADDITION OF BLAST RESISTANT GENE Ciência e Agrotecnologia
Hasan,Muhammad Mahmudul; Yusop,Mohd Rafii; Ismail,Mohd Razi; Mahmood,Maziah; Rahim,Harun Abdul; Latif,Mohammad Abdul.
ABSTRACTThe study was carried out in the University Putra Malaysia (UPM) Rice Research Centre to evaluate the yield performance of newly developed selected blast resistant plants of BC2F3 generations derived from a cross between MR263, a high yielding rice variety but blast susceptible and Pongsu Seribu 1, donor with blast resistant (Pi-7(t)and Pi-d (t)1, Pir2-3(t)genes and qLN2 QTL), Malaysian local variety. On the basis of assessed traits, the plants 12, 6, 7, 5, 21, 22, 5, 26, 11, 8, 10, 13 and 15 had the higher yield, blast resistant and good morphological traits. More than 70% heritability was found in days to maturity, plant height, tiller numbers per hill, and panicle per hill, 80% heritability was found in filled grain and yield per hill and more...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Yield; Rice; Fungi resistance.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000500463
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