PRODUCTIVITY AND LODGING RESISTANCE OF RICE VARIETY

Original title

ПРОДУКТИВНОСТЬ И УСТОЙЧИВОСТЬ К ПОЛЕГАНИЮ СОРТОВ РИСА

Authors

M.A. Skazhennik, N.V. Vorobyov, V.S. Kovalyov, S.V. Garkusha, T.S. Pshenitsyna, I.V. Balyasny

Contact information

All-Russian Rice Research Institute, Russia, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

Pages

712-715

DOI

10.31255/978-5-94797-319-8-712-715

Abstract

The material of investigations were 5 rice varieties, close by duration of vegetation period; three of them were Rapan, Vizit, Gamma of intensive type, two of them were Sonata and Atlant of extensive type. The work was carried out in vegetative-microfield tests in ferro-concrete micro-check plots, filled with soil from rice check plots, in which rice irrigation mode was used under field conditions. The fertilizers as ammonium sulphate, superphosphate and potassium chlor were applied in two dosages: N₂₄P₁₂K₁₂ and N₃₆P₁₈K₁₈ g of active ingredient per 1 m². The carried out researches showed that genotypes of intensive type such as Rapan, Vizit, Gamma, photosynthesis assimilates at tillering-booting period of plants are used for stem formation, it causes high productivity of panicle and yield of these varieties, but with less lodging resistance of sowings. Varieties of extensive types, such as Sonata and Atlant, have assimilates of photosynthesis at tillering-booting period of plants are more than intensive varieties used for stem formation and less for panicle productivity elements formation. It causes panicle formation with low productivity and decrease of yield, but with high sowings lodging resistance of these varieties.