## 3 Results
### Jerusalem Artichoke Green Mass and Tuber Yield Recording  
The total productivity of the JA herbage and tuber yield produced in sod-podzolic sandy loam soils under the Korenevo experimental base conditions, in Lyubertsy District, Moscow Region, per 1 ha, is shown in Table 2. The measurements were carried out in two periods: (1) the flowering phase of cultivars with early leaf wilting (early September) and (2) the budding-flowering phase of cultivars with late leaf wilting (the third ten-day period of October).  
Figure 7: Thickness (diameter) of the main stem of different JA cultivars, mm.  
Figure 8 clearly shows the general structure of Jerusalem artichoke yield (commercial tubers--more than 30 mm, small tubers--less than 30 mm and green mass), depending on herbage wilting time over a period of three years.  
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{3}{*}{**Sl. No. Time**} & \multirow{3}{*}{**Leaf**} & \multirow{3}{*}{**Cultivar**} & \multicolumn{3}{c}{**Green Mass**} & \multicolumn{3}{c}{**Tubers**} \\ \cline{3-8}  & & & **September,** & **October, 3 rd** & **Increase in** & **September,** & **October, 3 rd** & **Ten-Day** & **October, 3 rd** & **Increase in** \\  & & & **Period** & **Period** & **Ten-Day** & **Yield** & **Period** & **Period** & **Period** \\ \hline
1 & & Vylgortskiy & 24.9 & 18.8 & \(-6.1\) & 13.4 & 37.5 & 24.1 \\ \hline
2 & & Diyeticheskiy & 23.6 & 18.1 & \(-5.5\) & 43.5 & 46.1 & 2.6 \\ \hline
3 & & Nadezhda & 42.3 & 25.4 & \(-16.9\) & 40.8 & 46.0 & 5.2 \\ \hline
4 & & Nakhodka & 13.5 & 13.0 & \(-0.5\) & 23.3 & 51.1 & 27.8 \\ \hline
5 & & wilting & Podmoskovniy & 28.4 & 19.0 & \(-9.4\) & 26.5 & 44.4 & 17.9 \\ \hline
6 & & & Sireniki & 32.5 & 19.4 & \(-13.1\) & 23.1 & 46.9 & 23.8 \\ \hline
7 & & Skorospelka & 37.6 & 18.7 & \(-18.9\) & 19.4 & 50.7 & 31.3 \\ \hline
8 & & Blank & 34.8 & 14.1 & \(-20.7\) & 30.8 & 33.1 & 2.3 \\ \hline \multicolumn{8}{c}{Group average} & 29.7 & 18.3 & - & 27.6 & 44.5 & - \\ \hline \multirow{3}{*}{\(\mathrm{LSD}_{05}\)} & 2014 & 7.98 & 1.77 & - & 7.75 & 4.03 & - \\ \cline{2-8}  & 2015 & 9.02 & 5,27 & - & 11.53 & 7.65 & - \\ \cline{2-8}  & 2016 & 8.52 & 3.50 & - & 9.70 & 5.81 & - \\ \hline
9 & & Interes & 53.8 & 53.9 & +0.1 & 15.8 & 27.1 & 11.3 \\ \hline
10 & & Interes 21 & 25.3 & 29.2 & +3.9 & 13.6 & 35.5 & 21.9 \\ \hline
11 & & Kaluzhskiy & 31.0 & 31.4 & +0.4 & 10.1 & 19.4 & 9.3 \\ \cline{2-8}  & & Korenevskiy & 38.4 & 57.3 & +18.9 & 35.9 & 42.9 & 7.0 \\ \hline
13 & & wilting & Novost & 86.0 & 86.9 & +0.9 & 12.1 & 25.2 & 13.1 \\ \cline{2-8}  & (”late cultivars”) & & Tadzhikskiy & 56.5 & 79.3 & +22.8 & 9.3 & 23.4 & 14.1 \\ \hline
15 & & Violet de & & & & & & & \\ \cline{2-8}  & & Rense & 23.6 & 28.2 & +4.6 & 6.0 & 14.4 & 8.4 \\ \hline
16 & & Spindle & 65.4 & 80.0 & +14.6 & 8.5 & 43.9 & 35.4 \\ \hline \multicolumn{8}{c}{Group average} & 47.5 & 55.8 & - & 13.9 & 29.0 & - \\ \hline \multirow{3}{*}{\(\mathrm{LSD}_{05}\)} & 2014 & 16.87 & 15.69 & - & 4.88 & 7.23 & - \\ \cline{2-8}  & 2015 & 23.99 & 30.03 & - & 12.68 & 12.9 & - \\ \cline{2-8}  & 2016 & 20.45 & 22.83 & - & 8.81 & 10.11 & - \\ \hline \multicolumn{8}{c}{Total average} & 38.6 & 37.0 & - & 20.8 & 36.7 & - \\ \hline \multirow{3}{*}{\(\mathrm{LSD}_{05}\)} & 2014 & 14.56 & 19.66 & - & 6.97 & 7.34 & - \\ \cline{2-8}  & 2015 & 21.44 & 30.08 & - & 16.03 & 15.27 & - \\ \cline{2-8}  & 2016 & 18.03 & 24.84 & - & 11.47 & 11.29 & - \\ \hline \end{tabular}
\end{table}
Table 2: Total yield of Jerusalem artichoke green mass and tubers, t/ha.