SML 668
From PAU Ludhiana — short enough to fit as a catch crop between wheat and the next kharif sowing.
Quick facts
- Crop
- Moong (Green Gram)
- Type
- Open-pollinated
- Season
- Zaid / summer
- Maturity period
- 60–65 days
- Expected yield
- 8–10 q/ha
- Suitable soil
- Loam
- Release
- Widely reported release around 2008 by PAU, Ludhiana — not independently confirmed via a directly-fetched primary document in this pass
About this variety
SML 668 is an early-duration, dwarf mungbean (green gram) variety bred by Punjab Agricultural University (PAU), Ludhiana. Multiple independent seed-trade and extension listings consistently describe it maturing in about 60–65 days on a compact plant with long pods carrying 10–11 seeds each, resistant to yellow mosaic virus and tolerant of powdery mildew and sucking pests (jassid, whitefly, thrips) — matching this record's own duration and disease-resistance fields closely. Its widely-reported release year (around 2008) could not be confirmed via a directly-fetched PAU or ICAR primary document in this research pass — PAU's own site and the ICAR variety-notification PDF were both unreachable when checked — so that date, and its parentage cross, are stated here cautiously rather than with false precision.
Key characteristics
Yield & maturity
Maturity period
60–65 days
Expected yield
8–10 q/ha
Actual yield depends on sowing time, soil, irrigation, weather, seed quality and crop management.
Pest & disease considerations
Major diseases
Advantages & considerations
Why farmers may choose it
- Short 60–65 day duration and a dwarf, compact plant habit make it a reliable catch crop between wheat harvest and the next kharif sowing, without delaying either.
- Yellow mosaic virus resistance plus tolerance to powdery mildew, jassid and whitefly reduces spray needs relative to older, more disease-prone moong lines.
Things to consider
- No directly-fetched PAU or ICAR primary source could confirm an exact release/notification year or parentage cross in this pass — every fetch attempt at PAU's own domain and the ICAR DPD variety-notification PDF failed (connection refused or expired certificate), so the ~2008 release date rests on repeated but not independently corroborated seed-trade listings.
Suitable regions
States this variety is recommended for — check locally, since a state can have more than one recommended zone.
- Punjab
- Haryana
- Uttar Pradesh
Frequently asked questions
Is SML 668's release year officially confirmed?
Not from a primary source in this research pass — seed-trade and extension listings consistently cite around 2008, but PAU's own variety-release records and the ICAR DPD notification PDF were both unreachable when checked, so treat the year as indicative rather than official.
What makes SML 668 useful in a wheat-based rotation?
Its 60–65 day duration lets it be sown as a short-window catch crop between the wheat harvest and the next kharif sowing — too short to delay either main crop, which is why PAU markets it specifically for that gap.