Diversity analysis of rice bean (Vigna umbellata (Thunb.) Ohwi and Ohashi) collections from North Eastern India using morpho-agronomic traits

Rice bean: a lesser known pulse with well-recognized potential

“…gracilis from which rice bean is believed to have originated is conspecific with the cultivated V. umbellata and widespread in distribution in South and Southeast Asia (Bisht et al 2005;Seehalak et al 2006;Tomooka et al 1991Tomooka et al , 2002a. It is mainly grown in Bhutan, India, Myanmar, Northern Thailand, Southern China, Laos, Vietnam, Indonesia and East Timor (Tian et al 2013;Iangrai et al 2017;Pattanayak et al 2018). The crop was introduced as a garden and cover crop in Fiji, Sri Lanka, Ghana, Jamaica, Mexico and Haiti.…”

“…There is no specific report on pre-breeding. Iangrai et al (2017) reported a core collection developed from north east Indian genotypes which was later grouped into some qualitative classes (Pattanayak et al 2018). Higher productivity and other economically important traits such as pod number and seed weight have been introgressed from rice bean to black gram (Singh et al 2013).…”

“…(Tomooka et al 2000;Kashiwaba et al 2003) although resistance to yellow mosaic virus, Cercospora and bacterial leaf spot (Arora et al 1980) and mung bean yellow mosaic virus (Pandiyan et al 2008) has been reported in this crop. In the recent years, some reports on genetic diversity (Tian et al 2013;Iangrai et al 2017;Pattanayak et al 2018), genomics (Somta et al 2006;Isemura et al 2010) and nutritional quality (Katoch 2013;Bepary et al 2017) have been published.…”

Phenotypic diversity of rice bean collection [<i>Vigna umbellata</i> (Thunb.) Ohwi et Ohashi] in Burkina Faso based on quantitative traits

“…Results on plant height show that the height of rice bean plants varied between accessions, ranging from the lowest R5 (34.81 cm) to the highest R28 (134.19 cm). For Katoch (2020), plant height generally ranged from less than 1 m to more than 2.5 m, and many variations in height have also been reported (Singh et al, 2006;Katoch, 2011;Pattanayak et al, 2018). The height of the plant is very important, as it comes into play during cultivation operations, giving an idea of the operation to be carried out.…”