This document summarizes a study on genetic variability for quality traits in rice varieties from Northeast India. It presents results from 26 local rice varieties analyzed for protein content, amylose content, gel consistency, and alkali spreading value. Considerable genetic variability was observed among varieties for all traits. The study identified several promising varieties for each quality trait, such as Langphou chakhao, Chakhao Amubi and Red Udeibe for high protein content. The results indicate substantial genetic diversity exists in Northeast Indian rice germplasm for important grain quality traits.

1. “STUDIES ON GENETIC VARIABILITY FOR
QUALTY TRAITS IN NORTH-EAST INDIAN RICE
(Oryza sativa L.).”
Presented by
Mr. Balaji Shivaji Thorat
Ph.D. (Ag.) Scholar
Dept. of Agricultural Botany
(Genetics and Plant Breeding)
Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth,
Dapoli
NATIONAL SEMINAR ON

2. F
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F
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Introduction
Materials and Methods
Experimental Results
Conclusion

3.  Rice is one of the leading cereal food crop.
 North east Indian rice germplasm which are resistance to biotic,
abiotic stress and rich in quality traits.
 Also they have wide genetic variability, diversity and stability.
Introduction
Area Production Productivity
World 160.77 M ha 486.73 MMT 3.02 MT/ha
India 44.1 M ha 107.4 MT 2.43 tons/ha
Maharashtra 1.55 M ha 3.65 MT 2.35 tons/ha
Konkan 3.69 Lakh ha 10.83 Lakh tons 2.93 tons/ha
Foreign Agril. Service/ USDA office of Global Analysis
http;//apps.fas.usda.gov.in
Directorate of Economics & Statistics 2016
MH State Annual Rice Workshop Progress report 2016

4. Table 1. List of collected genotypes from North-East India
Materials & Methods
Sr. No. Name of Genotypes Sr. No. Name of Genotypes
1. CR 2829-PLN-36 14. Phungreila
2. MTU-1159 15. Tungou Phou
3. Ratkark Chakhoo 16. Govind bhog
4. Kholino 17. Chakhao Amubi
5. Chedo Local 18. Kahara
6. Heimang Phou 19. Kabok Phou
7. Phouren Amubi 20. Picharo
8. Sukha Panghi 21. Langphou chakhao
9. Disha Phou 22. Taroi Basmati
10. Chakhao Phou 23. Kobra
11. Red Udeibe 24. Naphang Phou
12. Napheang Phou 25. Botvel (CH)
13. Tampa Phou 26. Phule Samrudhi (CH)

5. Methodology
 Statistical Analysis
 Quality Traits Analysis
 Variability by Panse and Sukhatme (1985),
 PCV and GCV formula given by Burton and De Vane (1953),
 Broad sense heritability (h2b) by Lush (1949) and
 Genetic advance formula given by Johnson et. al. (1955).
 Protein Content (%) -N calculated by Modified Micro
Kjeldhal’s Method procedure given by Tondon (1993)
 Protein Content (%) = N. content x 6.25 (A.O.A.C., 1975).
 Amylose Content (%) -Calculated by Juliano (1971) involving
Spectrometer. (21-25%)
 Gel Consistency (mm) -Gel Consistency Test given by
Cagampang et. al. (1973). (61-100%)
 Alkaline Spreading Value -1 to 7 Scale developed by DRR,
Hydrabad. (4 & 5 scale)

6. Experimental Results
Sr.
No.
Name of
Genotypes
Protein
content (%)
Amylose
content (%)
Gel consistency
(mm)
Alkali spreading
value
1. CR 2829-PLN-36 9.32 5.28 69.67 3.64
2. MTU-1159 8.38 24.09 75.67 3.27
3. Ratkark Chakhoo 8.92 22.54 81.33 4.03
4. Kholino 7.15 17.85 77.33 3.02
5. Chedo Local 8.05 28.25 57.00 3.13
6. Heimang Phou 8.30 15.02 50.33 3.33
7. Phouren Amubi 9.15 7.06 80.67 5.06
8. Sukha Panghi 7.33 27.89 85.33 5.84
9. Disha Phou 7.19 26.34 83.67 4.05
10. Chakhao Phou 9.01 18.48 76.67 5.30
11. Red Udeibe 9.33 12.05 93.67 4.02
12. Napheang Phou 9.25 28.88 89.67 2.54
13. Tampa Phou 7.25 12.54 89.00 4.05
Table 2. Mean values for quality characters in rice
Contd…

7. Sr. No. Name of Genotypes Protein content
(%)
Amylose content
(%)
Gel consistency
(mm)
Alkali spreading
value
14. Phungreila 8.76 10.20 78.33 5.51
15. Tungou Phou 8.02 27.36 84.00 3.03
16. Govind bhog 4.52 29.83 95.33 6.02
17. Chakhao Amubi 9.83 10.66 79.33 4.05
18. Kahara 8.23 8.28 74.33 4.03
19. Kabok Phou 8.29 3.00 90.00 3.86
20. Picharo 4.29 24.59 86.33 3.66
21. Langphou chakhao 10.33 10.46 56.00 3.00
22. Taroi Basmati 8.67 20.26 80.33 3.52
23. Kobra 4.19 9.24 40.33 6.81
24. Naphang Phou 4.97 20.89 68.67 2.52
25. Botvel (CH) 8.43 20.66 49.33 3.03
26. Phule Samrudhi (CH) 9.28 17.63 65.67 3.02
General mean 7.94 17.67 75.31 3.97
Range 4.19 to 10.33 3.00 to 29.83 40.33 to 95.33 2.52 to 6.81
S.E.+ 0.16 1.11 3.74 0.04
C.D. @ 5 per cent 0.46 3.15 10.62 0.13

8. Sr.
No.
Characters
Phenotypic
variance
Genotypic
Variance
Environmental
variance
1. Protein content (%)
2.94 2.86 0.08
2. Amylose content (%)
68.89 65.19 3.70
3. Gel consistency (mm) 237.44 195.45 41.98
4. Alkali spreading value
1.28 1.27 0.006
Sr.
No.
Characters
PCV
(%)
GCV
(%)
h2b (%) GA
GAM
(%)
1. Protein content (%)
21.59 21.30 97.30 3.44 43.28
2. Amylose content (%)
46.98 45.70 94.63 16.18 91.58
3. Gel consistency (mm)
20.46 18.56 82.32 26.13 34.70
4. Alkali spreading value
28.45 28.38 99.50 2.32 58.31
Table 3. Components of variation for quality characters in rice
Table 4. Estimates of genetic parameters for quality characters in rice

9. CONCLUSION
Sr. No. Characters Promising Genotypes
1 Protein content (%) Langphou chakhao, Chakhao Amubi & Red
Udeibe
2 Amylose content (%) Ratkark Chakhoo, MTU-1159 & Picharo
3 Gel consistency (mm) Govind bhog, Red Udeibe & Kabok Phou
4 Alkali spreading value Red Udeibe, Ratkark Chakhoo, Kahara,
Disha Phou, Tampa Phou & Chakhao Amubi