Скорость роста листьев деревьев и кустарников
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Lilac: Astrakhan, Arcadak, Moscow
Compare the Moscow lilac for two years was very difficult. Suffice it to say that last year my lilac grew in 20 days , and in 2017 it took all 30 days . Both years the end of growth of leaves has come at the time of flowering. In the past year, flowering has just begun, and in this - is nearing the end. In this case, the leaves that this year seem to me small, have an average area of 33.34 square centimeters, and last year, it turns out, my lilac only up to 16.96 square centimeters has grown. This result is closer to the result of Daniil Pronchenkov , which surprised me so much , in which the average area of lilac leaves this year is 12.3 square centimeters.
In warm Astrakhan, the lilac grew large , the average leaf area - 38.85 cm. And it reached this size in 24 days, in Arcadak the development went faster - 18 days.
Look at what an interesting lilac development chart we get. From left to right Astrakhan, Arcadak, Moscow (results of two years). The spread is quite large. Between Astrakhan and Arcadak 6 days. If to compare with my last spring, then Arkadak passed us 2 days, and Astrakhan, surprisingly, fell behind for 4 days. But last spring we had a warm and friendly.
Now if you look at the average speed, which means how many square centimeters the sheet added in one day. In Arkadak this is 0.33, in Astrakhan - 1.47, and in Moscow - 1.04. I would say that the results in Moscow and Astrakhan are quite comparable. But the lilac in the Arcadak grew slowly.
What do you think?