synopsis presentation on genotypic environmental interaction in rice genotypes

1. Welco

2. PRADYUM MAURYA
Synopsis Seminar
DEPARTMENT OF GENETICS
AND PLANT BREEDING
दीनदयाल
उपाध्याय
गोरखपुर
विश्वविद्यालय
DDU GORAKHPUR
UNIVERSITY

3. Title of Thesis
Genotype × Environment interaction studies
in rice genotypes

4. Introduction
Rice [Oryza sativa (L.) 2n = 2x = 24] belongs to
genus Oryza and family Poaceae. The genus Oryza is
composed of 24 species, out of which two are
cultivated.
 It is the staple food for a large proportion of the
world’s population. Asia is considered as rice bowl of
the world where, nearly 90% of world’s rice is
produced.
 China is largest rice growing country in the world.

5.  At the end of fiscal year 2022, India had over 46
million hectares of land area for cultivation of rice.
 India’s total rice production during 2021-22 crop
year is estimated at a record 130.29 million
tonnes.
 West Bengal is first rank in production but in
productivity Punjab is first rank in India.
 Rice is an extremely important food crop in India.

6. Objectives
Objectives
1) Assessment of genetic variability, heritability
(broad sense) and genetic advance in rice
genotype for grain yield and its attributing
traits.
2) To investigate the genetic divergence
between different rice accessions.
3) To study of Genotype × Environment
interaction studies in rice genotypes.

7. Review of Literature
Author Year Conclusion
Vijay Kumar et al. 2001 Analysed the pattern of genotype ×
interaction for grain yield by Additive Main
Effects and Multiplicative Interaction
(AMMI) model using 16 hybrids and two
inbred check varieties over eleven locations
in India. Results indicated a significant
genotype×environment interaction
influenced the relative ranking of the
hybrids across the locations. It was evident
from AMMI analysis that genotype,
environment and the first principal
component of interaction effect accounted
for 86.96% of treatment sum of squares and
that the first five principal components of
the interaction effect were found to be
significant.

8. Author Year Conclusion
Belhekar et al. 2004 Evaluated eleven elite
genotypes and three released
varieties of the fine and coarse
group of early maturing rice
over three locations for grain
yield and yield components.
Genotype x environment
interaction and environment +
(G × E) were significant for all
the characters studied.

9. Author Year Conclustion
Anandan et al. 2009 Studied the influence of G × E
interaction for grain quality in
hybrid rice by using AMMI model.
The grain quality was highly
influenced by environmental factors.
Suitability of specific genotype to
specific location/season was
declared through the biplot. On the
other hand, external environmental
variables could be regressed on the
environmental scores leading to a
useful biological interpretation of
the interaction effects, which was
not possible in additive effect
models. The implications of the
results for rice hybrids on grain
quality in varied environmental
location were discussed.

10. Materials and Methods
S.N. Variety Collection
location
Season Spacing (cm)
1 Sambha Masuri Gorakhpur Kharif 20×15
3 Damini Varanasi Kharif 20×15
4 Dhanrekha Varanasi Kharif 20×15
5 VP-360 Moti Varanasi Kharif 20×15
6 Kaveri Supreme
Sona
Gorakhpur Kharif 20×15
7 Moti Gold Mau Kharif 20×15
8 Manshoor
MTU-7029
Gorakhpur Kharif 20×15

11. Methods
Observations recorded
Phenological traits
Days to 50% flowering
Days to 75% maturity
Yield and yield contributing traits
Plant height
Number of tillers per plant
Number of spikelets per panicle
Percent filled spikelets
Test grain weight
Grain yield per plant
Harvest index

12. Grain quality traits
Kernel length
Kernel breadth
Kernel length-breadth ratio