RARS possesses world's largest germplasm collection in Rice,various spices.Germplasm collection conserved in germplasm conservatory are:
1.Rice Germplasm
| Sl No | Variety | Sl No | Variety |
| 1 | Masoori | 25 | Chenthadi |
| 2 | Kunjukunju | 26 | Vaalicha |
| 3 | Thondi 1 | 27 | Paalveliyan |
| 4 | Thondi 2 | 28 | Chettuveliyan |
| 5 | Thondi 3 | 29 | Mallikuruva |
| 6 | Kothandan | 30 | Velumpala |
| 7 | EM (Edavaka) | 31 | Njavarablack |
| 8 | Mullankuruva | 32 | Japan violet |
| 9 | Deepthi | 33 | Rajameni |
| 10 | Ayiramkana | 34 | Chomala |
| 11 | Kanali | 35 | Kuttiveliyan |
| 12 | Puttabetta | 36 | Chennellu |
| 13 | Adukkan | 37 | Peruvaaya |
| 14 | Uralankayama | 38 | Thonnooramthondi |
| 15 | Ambalavayal 1 | 39 | Addy |
| 16 | Ambalavayal 2 | 40 | Chenthondi |
| 17 | Punnadanthondi | 41 | Valichoori |
| 18 | Valiyathondi | 42 | Kalladiaryan |
| 19 | Keervana | 43 | Onaattan |
| 20 | Intan | 44 | Mangalapuram puncha |
| 21 | Mannuveliyan | 45 | Kannikaima, Kuruva |
| 22 | Paalthondi | 46 | Kodakveliyan |
| 23 | Veliyan | 47 | Mullanpuncha |
| 24 | Njavara | 48 | Kuruva |
- The following are the scented rice varieties conserved:
Sl No Variety 1 Basmati 370 2 Basmati 385 3 Jeerakasala 4 Gandhakasala dwarf 5 Kasthuri 6 Gandhakasala 1 7 Pusa Basmati 8 Hariyana Basmati 9 Pusa Sugandhi 4 10 Rasagadam 11 Pusa Sugandhi 2 12 Sugandhamati 13 Pakistan basmati 14 IET 7191 15 Gandhakasala
2.Pepper ( Total 30 Varities )
| Sl No | Accession |
| 1 | Panniyur 1 |
| 2 | Panniyur 2 |
| 3 | Panniyur 3 |
| 4 | OP Karimunda |
| 5 | Panniyur 4 |
| 6 | Panniyur 5 |
| 7 | Panniyur 6 |
| 8 | Panniyur 7 |
| 9 | Panniyur 8 |
| 10 | Sreekara |
| 11 | Subhakara, |
| 12 | Panchami |
| 13 | Pournami |
| 14 | IISR Shakthi |
| 15 | IISR Thevam |
| 16 | Girimunda |
| 17 | Malabar Excel |
| 18 | Chumala |
| 19 | Vijay |
| 20 | PRS 17 |
| 21 | PRS 21 |
| 22 | PRS 22 |
| 23 | Cul 5308 |
| 24 | Cul 5489 |
| 25 | HP 34 |
| 26 | HP 105 |
| 27 | HP 813 |
| 28 | HP 1411 |
| 29 | HP 1411 |
| 30 | Karimunda |
3.Ginger (Total Varieties-35)
| Sl No | Variety |
| 1 | SG 551 |
| 2 | RARS-II |
| 3 | SG 649 |
| 4 | B3 |
| 5 | Awacho |
| 6 | PGS-667 |
| 7 | V2E52 |
| 8 | SG-541 |
| 9 | Mahima |
| 10 | Rejatha |
| 11 | Varada |
| 12 | Himachal |
| 13 | Wayanad Kunnamangalam |
| 14 | Wayanad- Mananathavady |
| 15 | RARS-I |
| 16 | Eranad |
| 17 | Maran |
| 18 | Missoram |
| 19 | SG-601 |
| 20 | R-29 |
| 21 | M-IV |
| 22 | 970 M |
| 23 | Dharaja |
| 24 | SG- 547 |
| 25 | Athira |
| 26 | R-292 |
| 27 | Karthika |
| 28 | Aswathy |
| 29 | 364-R |
| 30 | PGS-9 |
| 31 | SE 8640 |
| 32 | SE 8681 |
| 33 | SE 8681 |
| 34 | SE HP-9 |
| 35 | Rio- de- Janeiro |
4.Turmeric (Total Number - 30)
| Sl No | Variety |
| 1 | Chayapasupa |
| 2 | VK-13 |
| 3 | VK-121 |
| 4 | K-82 |
| 5 | VK-6 |
| 6 | VK-2 |
| 7 | VK-63 |
| 8 | VK-16 |
| 9 | VK-35 |
| 10 | VK-56 |
| 11 | VK-77 |
| 12 | VK-31 |
| 13 | VK-29 |
| 14 | Armoor |
| 15 | Amalapuram |
| 16 | Sona |
| 17 | Roma |
| 18 | Vandimetta |
| 19 | Prathiba |
| 20 | Sobha |
| 21 | PCT-13 |
| 22 | Co-1 |
| 23 | Wayanad local |
| 24 | RH-50 |
| 25 | RH-80 |
| 26 | PTS-9 |
| 27 | Sugantha |
| 28 | RH9/90 |
| 29 | TCP129 |
| 30 | TCP 70 |
