S.No
 Entry Name
Developed Research Station
Salient futures

1

NDLR-7

Regional Agricultural Research Station, Nandyal

High yielding, BPH Blast tolerant, Fine grain (short slender, medium duration) like that of BPT 5204, Fertilizer responsive, Non lodging, Non shuttering, suitable to late planting & Suitable to both seasons.
2
NDLR-8
High yielding, BPH Blast tolerant, short bold grain (medium slender, medium duration) like that of BPT 5204, Fertilizer responsive, Suitable to both seasons.

3

BPT 2613

Rice Research Unit, Bapatla

4

BPT 2676

5

BPT 2571

6

BPT 2678

7

BPT 2618

8

NLR 3353
Agricultural Research Station, Nellore

9

NLR 3302

10

NLR 3349

11

NLR 3350

12

NLR 3357

13

WGL 674
Regional Agricultural Research Station, Warangal

14

WGL667

15

JGL 17653
Regional Agricultural Research Station, Jagityal

16

JGL 18799

17

MTU 1001

Andhra Pradesh Rice Research Institute and Regional Agricultural Research Station, Maruteru
High yielding BPH Blast tolerant, Medium duration with strong dormancy suitable for both seasons

18

MTU RM 39-52-1-1

19

MTU 2152-5-1-1-5

20

MTU 2051-3-2-3

21

MTU 126-1-6-1

22

MTU 11 365-62-1-1

23

KPS 3018
Agricultural Research Station, Kunaraml

24

KPS 2874

25

RNR 17470
Rice Research Unit, Rajendranagar.

26

RNR 10269

Table 1: Rice varieties developed from different research station of Andhra Pradesh
Source of variance
Degrees of freedom
Days to 50% flowering
Plant height
Effective tillers for Plant
Panicle length
No.of seed/Panicle
1000 SW
Seed yield/ha
Replication

2

2.09

4.13

3.96

2.61

8.42

3.77**

866576.81
Varieties

25

60.46**

129.85**

10.81**

4.94**

9307.31**

26.94**

1698480.99**
Error

50

3.08

10.70

3.11

1.67

131.89

0.53

404894.03

**Significant at P=0.05 and P=0.01 levels respectively
Table 2: ANOVA table for yield and yield attributing characters of medium duration rice varieties
Characters
Mean
Range
Coefficient variation

Heritability In broad sense
Genetic advance as percent mean
Min.
Max.
Genotypic (GCV)

Phenotypic(PCV)

Days to 50% flowering

108.53

96.00

114.33

4.03

4.14

0.95

8.09

Plant height

108.81

97.10

118.30

5.79

6.05

0.92

11.43

Effective tillers/plant

15.35

12.00

18.67

10.44

12.37

0.71

18.16

Panicle length

23.06

20.63

25.70

4.53

5.57

0.66

7.59

No.of seed/Panicle

246.81

176.33

367.33

22.41

22.57

0.99

45.83

1000 SW (g)

18.10

13.52

24.03

16.39

16.56

0.98

33.44

Seed yield/ha

6266.23

4622

7822

10.48

12.01

0.76

18.84

Table 3: Estimates the variability and genetic parameters for yield and yield attributing characters in medium duration rice
Character
Effective tillers for Plant
Days to 50% flowering

1000 SW
Panicle length
Plant height

No. of
 seed/Panicle

Seed
yield/ha
Effective tillers for Plant

1.000(1.000)

-0.0504(-0.0795)

-0.5582(-0.6580)

-0.3163**(-0.5765)

-0.0211(-0.0103)

-0.0122(-0.0179)

-0.1434(-0.1566)

Days to 50% flowering

 

1.000 (1.000)

0.0916 (0.0946)

-0.0658 (-0.1139)

0.2880* (0.3131)

-0.1835 (-0.1927)

-0.1311 (-0.1550)

1000 SW

 

 

1.000 (1.000)

0.0752 (0.1069)

0.0082 (0.0022)

-0.4107 (-0.4168)

0.3261** (0.3926)

Panicle length

 

 

 

1.000 (1.000)

0.2529 (0.2791)

0.1737 (0.2200)

0.2382 (0.3395)

Plant height

 

 

 

 

1.000 (1.000)

0.2933** (0.3025)

0.2355* (0.2901)

No. of seed/Panicle

 

 

 

 

 

1.000 (1.000)

0.1810 (0.2060)

Seed yield/ha

 

 

 

 

 

 

1.000 (1.000)

**Significant at 1 percent level * Significant at 5 percent level
Figures in parenthesis are genotypic correlation coefficients
Table 4: Estimates of phenotypic and genotypic correlation coefficient between yield and yield component characters of medium duration rice varieties

Character

Effective tillers for Plant

Days to 50% flowering

1000 SW

Panicle length

Plant height

No.of seed/Panicle

Effective tillers for Plant

0.2445 (1.3051)

-0.0123
(-0.1038)

-0.1365
(-0.8587)

-0.0773
(-0.7524)

-0.0052
(-0.0135)

-0.0030
(-0.0234)

Days to 50% flowering

0.0070
(-0.0084)

-0.1399
(0.1058)

-0.0128
(0.0100)

0.0092
(-0.0120)

-0.0403
(0.0331)

0.0257
(-0.0204)

1000 SW

-0.3346
(-0.9576)

0.0549
(0.1376)

0.5994
(1.4554)

0.0451
(0.1555)

0.0049
(0.0032)

0.2462
(-0.6065)

Panicle length

-0.0534
(-0.4845)

-0.0111
(-0.0957)

0.0127
(0.0898)

0.1688
(0.8405)

0.0427
(0.2346)

0.0293
(0.1850)

Plant height

-0.0029
(0.0019)

0.0389
(-0.0587)

0.0011
(-0.0004)

0.0341
(-0.0523)

0.1353
(-0.1875)

0.0396
(-0.0567)

No. of seed/Panicle

-0.0041
(-0.0131)

-0.0616
(-0.1403)

-0.1378
(-0.3034)

0.0583
(0.1602)

0.0984
(0.2203)

0.3356
(0.7281)

Seed yield/ha

-0.1434
(-0.1566)

-0.1311
(-0.1550)

0.3261
(0.3926)

0.2382
(0.3395)

0.2355
(0.2901)

0.1810
(0.2060)

Partial R2

-0.0351
(-0.2044)

0.0183
(-0.0164)

0.1955
(0.5714)

0.0402
(0.2853)

0.0318
(-0.0544)

0.0607
(0.1500)

Residual Effect (Phenotypic) = 0.8298
Residual Effect (Genotypic) = 0.5181
Figures in parenthesis are genotypic effects
Table 5: Estimates direct and indirect effects between yield and yield components