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Table 2 Combined AMMI model analysis of variance for grain yield of vegetable pigeonpea genotypes evaluated at six locations in Kenya (2016–2017)

From: Evaluation of vegetable pigeonpea [Cajanus cajan (L.) Millsp] genotypes for yield stability

Source

df

TSS

TSS%

G × E explained

Cumulative (%)

MS

Genotypes

4

33,06,164

9.1

–

–

8,26,541***

Environments

5

18,103,375

49.6

–

–

36,20,675***

Block (within environ)

12

10,21,597

2.8

–

–

85,133 NS

GIE interactions

20

71,62,881

19.6

–

–

3,58,144**

IPCA1

8

55,16,967

–

77.0

77.0

6,89,621***

IPCA2

6

13,96,489

–

19.5

96.5

2,32,748 NS

Residuals

6

2,49,426

–

–

–

41,571 NS

Error

48

69,34,666

410.4

–

–

1,44,472

Total

89

36,538,683

35

–

–

–

  1. NS non-significant; SS sum of square; df degree of freedom; TSS total sum of square; MS mean square; IPCA interaction principal component analysis; GIE genotype  ×  environment interaction
  2. *P < 0.05
  3. **P < 0.01
  4. ***P < 0.001