Investigation of photoperiod sensitivity in oats and selection of early weakly photoperiod-sensitive and late strongly photoperiod-sensitive forms

Early weakly photoperiod-sensitive specimens are identified and early weakly and late strongly photoperiod-sensitive oat forms are selected from a heterogeneous population.     

Ecological testing of ultra-early common wheat forms under various photoperiod conditions

Morphophysiological traits of spring wheat (Triticum aestivum L.) forms are studied in pot and field experiments with 18-, 12-, and 8-h photoperiods. Genes controlling photoperiod sensitivity (Ppd) and growth habit (Vrn) are determined in these forms by means of hybridological analysis and allele-specific molecular markers. Ultra-early forms are valuable parent material for breeding common wheat for early ripening.     

Photoperiod sensitivity and molecular marking of genes <Emphasis Type="Italic">Ppd</Emphasis> and <Emphasis Type="Italic">Vrn</Emphasis> in connection with breeding alternative-habit wheat varieties

The response of wheat varieties and breeding lines to vernalization and photoperiod in pot experiments is studied and tested by means of allele-specific markers for genes Ppd and Vrn. These markers effectively predict the degree of photoperiod sensitivity of plants to vernalization, which attests to the expediency of using them in breeding practice.     

Research of oat lines differing for genes of photoperiodic sensitivity

Oat lines (A. sativa) are studied in long and short photoperiods. Fast-ripening low-sensitive and late-ripening sensitive forms of this culture, differing for photoperiodic sensitivity genes, were selected from the hybrid population. The effect of short photoperiods on economically valuable traits is established. The long flag leaf sheath and high relative content of chlorophyll contributed to increased panicle productivity in oat lines.     

Temperature Sensitivity (Q10) of Soil Basal Respiration as a Function of Available Carbon Substrate,Temperature, and Moisture

Eurasian Soil Science - Basal respiration is one of the key indicators of soil C mineralization. Temperature sensitivity (Q10) of basal respiration is important for predicting changes in C...     

Investigation of photoperiod sensitivity of Linum usitatissimum L. Lines and effect of short-day conditions on their economically valuable traits

Lines of the genetic collection of Linum usitatissimum L. from different ecogeographic provenances are investigated under long- and short-photoperiod conditions. The effect of a short photoperiod on economically valuable traits is established and early-flowering weakly sensitive and late-flowering sensitive forms of flax are selected from a hybrid population.     

Physiological and genetic study of isogenic lines of spring soft wheat differing in color and spinous ear and having weak photoperiodic sensitivity

Wheat isogenic lines differing in the spinous and color of ear and having weak photoperiodic sensitivity were created. They are significantly more precocious than the original highly sensitive parent variety Leningradka (Leningrad oblast) and the Courier standard variety (Krasnodar krai) in conditions of both short and long natural photoperiod. The lines are not inferior in productivity to the parent variety Leningradka. Molecular genetic analysis reveals the presence of the dominant allele Ppd-D1a in the lines.