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Indore, India

Rawal R.,Khandwa Road | Kumar V.,Khandwa Road | Rani A.,Khandwa Road | Gokhale S.M.,Khandwa Road | And 2 more authors.
Indian Journal of Agricultural Sciences | Year: 2014

Lipoxygenase-2 is the prime contributor to the off-flavour associated with the soy products. With the aim to introgress null allele of lipoxygenase-2 into popular soybean variety JS 97-52 through marker assisted backcross selection (MABC), parental polymorphism was surveyed for JS 97-52 (recipient parent) and PI 596540 (the donor of null allele of lipoxygenase-2). A total of 264 SSR markers dispersed across 20 linkage groups were screened. Of these, 130 SSR markers showed polymorphism. SSR markers Satt522 and Satt656 reported to be in the vicinity of Lox2 locus were found to be polymorphic for JS 97-52 and PI 596540 and were used for confirming true F1 and BC1F1 plants. The polymorphic SSR markers identified in the study would be utilized for retrieving the genetic background of JS 97-52 in the backcross generations. Source

Ramteke R.,Khandwa Road | Gupta G.K.,Khandwa Road | Murlidharan P.,Khandwa Road | Sharma S.K.,Khandwa Road
Indian Journal of Genetics and Plant Breeding | Year: 2011

The study undertaken to assess the genetic changes on yield, agronomic traits and foliar diseases during the last 39 years (1969 to 2008), revealed 103.5 % yield improvement over the years @ 2.6 % per year. The annual genetic gain in seed yield of soybean varieties released in India during this period was approximately 23 kg ha -1. This yield increase was assigned to increase in number of pods and seeds per plant. Seeds per plant increased by 1.56 % per year. Foliar diseases decreased consistently over the period. Varieties namely Kalitur, Bragg, Punjab 1, PK 308, PK 471, JS 71-05, NRC 2, PS 1042, JS 93-05 and PS 1347 were stable over the seasons for the yield. Varieties namely Kalitur, Bragg, Punjab 1 and PS 1042 were found suitable in unfavorable seasons while varieties viz., PK 308, PK 471, JS 71-05, NRC 2, JS 93-05 and PS 1347 were found suitable in favorable seasons. None of the varieties was found consistently superior for all the characters in all the seasons. Source

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