Difference in the results of the two samples.

The efficiency of the cycle.

The seeds can recover the degree of germinative power, lost over time, thanks to the cumulative-dissipative cycle. This depends mainly on the amount of processes that take place during the cumulative phase.

These processes depend on the duration of the episodes of interaction at a given value of angular velocity, and on the exchanges of heat. The higher the temperature, during the cumulative phase, the more numerous the processes, per unit of time.

When the episodes of interaction are short, the heat exchange supplement becomes necessary in order not to compromise the efficiency of the cycle, and thus the quantity of crops.

The duration of the episodes.

The duration of the episodes of interaction can be deduced from the curves of the calendar. The greater the variation of the angular velocity per unit of time, the shorter the episodes.

The episodes tend to be as short as the range of the declination of the Moon, with respect to the Equator, is greater. In each month of the calendar, the values of this declination are given.

Seven years of lean times.

Within a period of 18.6 years, for the duration of seven years, the variation of the declination of the Moon, with respect to the equator, exceeds 26 degrees (see also page 1.6).

It is then that there is the larger difference in the results of the “experiment E”. It is then that the supplement of heat exchanges, during the cumulative phase, finds greater utility.

Then the difference of productivity between the seeds of the two specimen can easily exceed 50%.

Low difference in productivity.

By contrast, the difference in productivity, of the plants grown from the two samples, tend to be contained, when the excursion of the declination of the Moon, with respect to the equator, is reduced, and the cumulative phases tend to be long.

Then, there is also a reduced variation of the angular velocity of the Moon; moreover with numerous useful cumulative episodes, of long duration.

In such circumstances, the cumulative phase tends to be properly carried out, even at mid temperatures. Where there are these conditions, the seed viability is satisfactory, as well the trend of the crop production, ceteris paribus. Heat supplements during the cumulative phase is less necessary.