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Article
Purification of the Popular Rice Variety (Oryza sativa) IR841 in the Municipality of Cove (Benin)
Author(s)
Michel Batamoussi Hermann, Dieudonné Issoham Yocola and Sabi Bira Joseph Tokore Orou Mere
Full-Text PDF XML 2746 Views
DOI:10.17265/2159-5828/2021.01.001
Affiliation(s)
Department of Plant Production, Faculty of Agronomy, University of Parakou, Benin, BP 123 Parakou, Benin
ABSTRACT
The study of the purification of the popular IR841 rice variety was carried out at the
SPRR/CRA-Sud/INRAB experimentation site in the commune of Cove. The objective
of this research is to identify the
pure strains of the IR841 variety for seed multiplication. To achieve this goal, 10 strains from INRAB, Toulou1,
Toulou2, AfricaRice, Ouesse, Dangbo, Malanville, Glazoue, Togo and Banterice variety IR841 were collected. The
experimental setup is a total randomization. This device has three repetitions. Each repetition includes ten (10) treatments. The results reveal
that the strain Toulou1 groups together all the characteristics of the variety
IR841, namely: height (Toulou l: 98.63 ± 7.47 cm, IR841: 100 cm), duration of
the seed-heading cycle (Toulou1: 83 days, IR841: 84 days), length and width of
the panicle leaf (Toulou1: 31.56 cm ± 2.58 cm, IR841: 33.72 cm) and (Toulou1:
1.46 cm ± 0.04 cm, IR841: 1.50 cm), number of tillers per
tuft (Toulou1: 12.73 ± 1.85, IR841: 12). The strain of Toulou2 includes only a
part of the characteristics of the variety IR841 (semis-épiaison cycle (83 jrs), height of the
plants (101.63 cm), length of the
panicle leaf (29.92 cm)). Then the strain
Toulou1 is characterized by extra-vigorous seedlings, an intermediate
pubescence of the leaves, a bifid ligule, an erect port and an erect panicle
leaf, the absence of the anthocyanin colouration and especially its homogeneity
(absence of off-types) which make it a more or less pure strain which can serve
as a multiplication of seed.
KEYWORDS
Rice, purification, strain, seed, Cove.
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