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Table 1.
The relationship between yield and yield increase with the main hydrothermal indicators in the period from the 3rd decade of May to the second decade of June. The significant correlation coefficient is r>0.577
| Option | The correlation coefficient of productivity and | The correlation coefficient of the increase in yield and | ||||
|---|---|---|---|---|---|---|
| air temperature | precipitation | hydrothermal coefficient | air temperature | precipitation | hydrothermal coefficient | |
| 1 | –0.621 | 0.462 | 0.609 | – | – | – |
| 2 | –0.620 | 0.469 | 0.608 | –0.319 | 0.259 | 0.311 |
| 3 | –0.704 | 0.560 | 0.690 | –0.696 | 0.618 | 0.681 |
| 4 | –0.738 | 0.673 | 0.767 | –0.682 | 0.768 | 0.759 |
| 5 | –0.680 | 0.677 | 0.739 | –0.508 | 0.685 | 0.628 |
| 6 | –0.659 | 0.648 | 0.706 | –0.419 | 0.595 | 0.518 |
| 7 | –0.631 | 0.620 | 0.689 | –0.364 | 0.593 | 0.507 |
| 8 | –0.580 | 0.587 | 0.651 | –0.312 | 0.540 | 0.470 |
| 9 | –0.607 | 0.620 | 0.684 | –0.407 | 0.603 | 0.559 |
| 10 | –0.695 | 0.654 | 0.743 | –0.580 | 0.732 | 0.704 |
| 11 | –0.687 | 0.634 | 0.721 | –0.575 | 0.661 | 0.654 |
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