The photosynthetic productivity of sugar beet depending on the density of plants

It was founded that area of leaf surface depended on the plant density. The highest area of leaf surface received in the variant with a given final density of 101-110 thousand/ha. It is caused by the optimal area of plant nutrition and the best formation of assimilation system of leaf surface. The lowest area of leaf surface was obtained by the density 136-145 thousand/ha - 39.8 thousand m²/ha, that is caused by the smaller area of plants nutrition and their competition in the using of solar energy, air and nutrients. The highest photosynthetic potential was received in the variant with optimum planting density 101-110 thousand plants/ha - 1.50 million m² days / ha. With the increase of planting density from 111 to 145 thousand/ha the rate of photosynthetic potential of the sowing decreased. It is caused by the weak development and functioning of the leaf surface which reduces the sugar beet productivity. It was founded the optimal density planting of the sugar beet plants in the conditions of unstable humidifying zone of the central forest-steppes – 100-110 thousand/ha.

Key words: sugar beet, plant density, photosynthetic productivity, field germination, yield, sugar content.

Karpuk L.

https://orcid.org/0000-0002-5860-5286

Reference:

1. Chastnaja fyzyologyja polevyh kul'tur / pod red. E.Y. Koshkyna. – M.: Kolos, 2002. – 344 s.

2. Nychyporovych A.A. Fotosyntez y teoryja poluchenyja vysokyh urozhaev / A.A. Nychyporovych. – M.: Yzd-vo Akademyy nauk SSSR, 1956. – 94 s.

3. Glevas'kyj I.V. Burjakivnyctvo / I.V. Glevas'kyj. – K.: Vyshha shkola, 1991. – 320 s.

4. Roi'k M.V. Burjaky / M.V. Roi'k. – K.: RIA «Trud-Kyi'v», 2001. – 320 s.

5. Tymyrjazev K.A. Zhyzn' rastenyj / K.A. Tymyrjazev. – M., 1878. – 245 s.

6. Metodyka yssledovanyj po saharnoj svekle. – K., 1986. –292 s.

7. Grodzynskyj A.M. Kratkyj spravochnyk po fyzyologyy rastenyj / A.M. Grodzynskyj, D.M. Grodzynskyj. – K.: Naukova dumka, 1973. – S. 459.

8. Orlovskyj N.Y. Osnovy byologyy saharnoj svekly / N.Y. Orlovskyj. – K.: Gosyzdat s.-h. lyteratury, 1961. – 364 s.

9. Mazlumov A.L. Selekcyja saharnoj svekly / A.L. Mazlumov. – M.: Kolos, 1997. – 207 s.

10. Nychyporovych A.A. Fotosyntetycheskaja dejatel'nost' rastenyj v posevah (Metody y zadacha ucheta v svjazy s formyrovanyem urozhaev) / A.A. Nychyporovych, L.E. Strogonova, S.N. Chmora. – M.: Yzd-vo Akademyy nauk SSSR, 1961. – 133 s.

Download this article:

Attachment	Size
karpuk_10_2013.pdf	384.18 KB

YEAR:

2013

AGROBIOLOGY №10 2013

You are here

The photosynthetic productivity of sugar beet depending on the density of plants