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Guar (Cluster Bean)KharifOpen-pollinatedUpdated 2 September 2026

RGC-1055 (Guar Uday)

Centrally notified in 2007 as "Guar Uday" — an unbranched, early-maturing type bred for high gum content and drought tolerance, and officially recommended for the entire guar-growing area of the country.

SeasonKharif
Maturity periodEarly maturing (exact day count not separately documented)
Expected yieldNot separately quantified; bred and centrally notified for high yield across India's entire guar-growing area
Suitable soilLight, well-drained arid and semi-arid soils

Quick facts

Crop
Guar (Cluster Bean)
Type
Open-pollinated
Season
Kharif
Maturity period
Early maturing (exact day count not separately documented)
Seed rate
10–12 kg/ha given its unbranched, early type suited to closer, inter-cropped stands
Expected yield
Not separately quantified; bred and centrally notified for high yield across India's entire guar-growing area
Suitable soil
Light, well-drained arid and semi-arid soils
Release
Notified 5 October 2007 (S.O. 1703(E)) · Agricultural Research Station, Durgapura, SKN Agriculture University

About this variety

RGC-1055, given the popular name "Guar Uday", was developed at the Agricultural Research Station, Durgapura (part of SKN Agriculture University, Jobner/Bikaner) through selection from the cross RGC 936 × RGC 197 — making it a direct descendant improvement over the long-standing check variety RGC-936. It was officially notified on 5 October 2007 (S.O. 1703(E)) and, unusually for a guar variety, is recommended for the entire guar-growing area of the country rather than a specific state or zone. It is an unbranched, early-maturing type, which makes it well suited to inter-cropping and mixed-cropping systems where guar is grown alongside another crop rather than as a sole stand. Its documented strengths are high gum content — the trait that decides guar's real commercial value — combined with photo-insensitivity (reliable performance regardless of day length) and drought tolerance.

Key characteristics

    Plant typeOpen-pollinated
    MaturityEarly maturing (exact day count not separately documented)
    Yield potentialNot separately quantified; bred and centrally notified for high yield across India's entire guar-growing area
    Disease resistanceNot separately documented; bred mainly for high gum content and drought tolerance
    SoilLight, well-drained arid and semi-arid soils
    SeasonKharif

Sowing & cultivation

  • Sowing timeLate June to July, with the monsoon
  • Seed rate10–12 kg/ha given its unbranched, early type suited to closer, inter-cropped stands
  • Spacing30–40 cm between rows for its unbranched habit, which suits closer spacing and inter-cropping better than a heavily branched type

Yield & maturity

Maturity period

Early maturing (exact day count not separately documented)

Expected yield

Not separately quantified; bred and centrally notified for high yield across India's entire guar-growing area

Actual yield depends on sowing time, soil, irrigation, weather, seed quality and crop management.

Pest & disease considerations

Major diseases

  • Not separately documented; bred mainly for high gum content and drought tolerance

Advantages & considerations

Why farmers may choose it

  • An improvement bred directly from RGC-936, the long-standing check variety, so it starts from proven parentage rather than an unrelated line.
  • Officially recommended for the entire guar-growing area of the country — a wider official endorsement than most single-zone releases carry.
  • Its unbranched, early habit specifically suits inter- and mixed-cropping systems, giving flexibility a heavily branched variety cannot.
  • High gum content is bred in directly, which is what decides a guar crop's real commercial value beyond raw seed weight.

Things to consider

  • Specific yield and disease-reaction figures were not independently quantified in available sources beyond its general "high yielding" description — confirm current local trial data with your KVK.

Suitable regions

States this variety is recommended for — check locally, since a state can have more than one recommended zone.

  • Rajasthan
  • Gujarat
  • Haryana
  • Punjab

Frequently asked questions

What does the "Uday" in Guar Uday mean, and where can this variety be grown?

"Guar Uday" is simply the popular/marketing name given to RGC-1055 on notification. Unusually for a guar variety, it was officially recommended for the entire guar-growing area of the country in its 2007 notification, rather than being restricted to one state or agro-climatic zone.