Table 5 Daily transpiration during flowering to boll opening stage in cotton under different row configurations, plant density, and topping treatments in 2020 and 2021

2020

Equal row spacing

18

Manual topping

2.98±0.06 b

2.48±0.04 b

2.53±0.10 a

Chemical topping

3.83±0.11 a

3.34±0.07 a

2.33±0.31 a

10

Manual topping

2.54±0.09 b

2.17±0.04 b

1.81±0.09 b

Chemical topping

3.26±0.08 a

2.98±0.05 a

2.36±0.12 a

Narrow-wide row spacing

25

Manual topping

3.98±0.14 b

3.43±0.07 b

2.39±0.11 b

Chemical topping

5.41±0.13 a

4.67±0.08 a

4.11±0.20 a

15

Manual topping

3.12±0.09 b

2.73±0.04 b

2.41±0.12 b

Chemical topping

3.62±0.13 a

3.20±0.06 a

2.89±0.13 a

2021

Equal row spacing

18

Manual topping

5.74±0.30 a

5.36±0.17 a

5.86±0.22 a

Chemical topping

5.91±0.34 a

5.52±0.15 a

5.49±0.14 a

Narrow-wide row spacing

15

Manual topping

7.3±0.36 b

6.88±0.41 b

Chemical topping

8.54±0.43 a

8.38±0.51 a