دورية أكاديمية
Influence of tapping on vitality, production and morphometric indicators of Scots Pine seeds in Small Polissya ; Вплив підсочування на життєвість, насіннєношення та морфометричні показники насіння сосни звичайної на Малому Поліссі
| العنوان: | Influence of tapping on vitality, production and morphometric indicators of Scots Pine seeds in Small Polissya ; Вплив підсочування на життєвість, насіннєношення та морфометричні показники насіння сосни звичайної на Малому Поліссі |
|---|---|
| المؤلفون: | Зварич, Ю. В., Зварич, О. Д. |
| المصدر: | Науковий вісник НЛТУ України; Том 31 № 2 (2021): Науковий вісник НЛТУ України; 35-39 ; Научный вестник НЛТУ Украины; Том 31 № 2 (2021): Науковий вісник НЛТУ України; 35-39 ; Scientific Bulletin of UNFU; Vol 31 No 2 (2021): Scientific Bulletin of UNFU; 35-39 ; 2519-2477 ; 1994-7836 ; 10.36930/403102 |
| بيانات النشر: | Ukrainian National Forestry University |
| سنة النشر: | 2021 |
| المجموعة: | Scientific Bulletin of UNFU (Ukrainian National Forestry University) |
| مصطلحات موضوعية: | production of gum, impedance, polarization capacity, cones, seed, смолопродуктивність, імпеданс, поляризаційна ємність, шишки, насіння |
| الوصف: | Studies conducted by various scientists do not provide an unambiguous conclusion about the impact of pine tree tapping on their vitality and morphometric parameters of seeds. A study of resin yield on the experimental plot for two-year term has been conducted. The results of the research have shown that average load on one pine tree with an average diameter of 37.5cm was estimated to be 1.6. The average annual yield of resin per tree during the first year of tapping was determined to be almost 2.5kg, and during the second year of tapping it was almost 2.3kg. The annual dynamics of dielectric parameters at the experimental and control plots during the two years of tapping was studied. The indicator of the impedance and polarization capacity of pine trees on the experimental and control plots is found to be almost the same before tapping. At the beginning of tapping, the indicator of vitality of tapped trees is found to decrease comparing to control plots. In the second half of the seasonal tapping, the indicators of vitality begin to level off and after its completion they become almost the same on both plots. Furthermore, according to Kapper's method, the seed yield of model trees on the experimental plot was determined as medium, and on the control plot– medium-strong. The length of the cones of the samples from the experimental plots is revealed to exceed the control by 1.5-2.5mm. The diameter of the cones is also larger on the experimental plots by 0.9-1.2mm. Accordingly, the mass of cones on the experimental plots exceeds the control by 0.6-0.8g.The dominant shape of the cones on all experimental plots is conical. The largest indicator of seed length is observed on the experimental plot VM-9RP (4.37mm), and the smallest– on the experimental plot VM-2 (4.12mm). The width of the seeds is the same. Seed weight is the lowest on the experimental plot VM-2 (5.7mg), and the largest– on the experimental plot VM-9RP (6.8mg). In general, studies indicate a decrease in pine trees vitality at the beginning of the ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | Ukrainian |
| العلاقة: | https://nv.nltu.edu.ua/index.php/journal/article/view/2273/2310Test; https://nv.nltu.edu.ua/index.php/journal/article/view/2273Test |
| DOI: | 10.36930/40310205 |
| الإتاحة: | https://doi.org/10.36930/40310205Test https://doi.org/10.36930/403102Test https://nv.nltu.edu.ua/index.php/journal/article/view/2273Test |
| حقوق: | Авторське право (c) 2018 http://creativecommons.org/licenses/by/4.0Test ; http://creativecommons.org/licenses/by/4.0Test |
| رقم الانضمام: | edsbas.B4E6222E |
| قاعدة البيانات: | BASE |
| DOI: | 10.36930/40310205 |
|---|