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Table 3 Physiological characteristics of Bt and non-Bt cotton cultivars grown with different levels and methods of B application

From: Growth, yield and fiber quality characteristics of Bt and non-Bt cotton cultivars in response to boron nutrition

Treatments

Chlorophyll-a /(mg·g−1 FW)

Chlorophyll-b / (mg·g−1 FW)

MSI /%

RWC /%

Bt

Non-Bt

Bt

Non-Bt

Bt

Non-Bt

Bt

Non-Bt

CK

0.52e

0.40f

0.42f

0.34fg

68.7e

64.8d

75.2f

68.6g

SB1

0.70c

0.75cd

0.53e

0.61c

74.8cd

69.7c

83.4c

78.7c

SB2

0.71c

1.11a

0.72c

1.00a

83.9a

76.2ab

84.4bc

84.1a

SB3

0.83b

0.83c

0.54e

0.62c

64.8f

57.4f

78.6de

78.4c

FB1

0.82b

0.62de

0.65d

0.60c

76.5c

73.1bc

77.8e

71.7ef

FB2

0.90a

0.60de

0.74c

0.63c

71.8d

65.9d

86.1b

73.8c

SB1 + FB1

0.93a

0.74cd

0.83bc

0.54d

77.5bc

74.4b

78.8de

72.4ef

SB1 + FB2

0.85b

0.63de

0.90ab

0.85b

74.8cd

75.3b

85.7b

71.5f

SB2 + FB1

0.84b

0.61de

1.01a

0.55d

84.6a

80.5a

88.5a

74.6de

SB2 + FB2

0.91a

0.96b

0.72c

0.72bc

83.2a

71.8bc

78.2de

78.7c

SB3 + FB1

0.80b

0.62de

0.70c

0.52d

67.9e

64.3de

77.6e

71.6ef

SB3 + FB2

0.95a

0.46f

0.63d

0.44de

62.4fg

57.8f

89.3a

73.5e

  1. Values are means of three replicates with two plants per replicate (n = 3). Values with the same letter in a column do not differ significantly at P ≤ 0.05. CK: Control; SB1: 1 mg·kg−1 B through soil application; SB2: 2 mg·kg−1 B; SB3: 3 mg·kg−1 B; FB1: 0.2% B foliar spray; FB2: 0.4% B foliar spray; SB1 + FB1: 1 mg·kg−1 B + 0.2% B foliar spray; SB1 + FB2: 1 mg·kg−1 B + 0.4% B foliar spray; SB2 + FB1: 2 mg·kg−1 B + 0.2% B foliar spray; SB2 + FB2: 2 mg·kg−1 B + 0.4% B foliar spray; SB3 + FB1: 3 mg·kg−1 B + 0.2% B foliar spray; SB3 + FB2: 3 mg·kg−1 B + 0.4% B foliar spray