N.I. Stepochkina, P.I. Stepochkin
Siberian Research Institute of Plant Growing and Breeding, ul. S-100, 21, Krasnoobsk, Novosibirskaya obl., 630501, a/ya 375, Russian Federation
Summary. The results of evaluation of the grain nature (grain weight in the standard volume) of wheat and triticale plants using a small cylindrical container (microchondrometer) in order to use this method in the breeding practice are presented. Our tasks were to define the data correlation on the assessment of the grain nature of soft wheat with the chosen microchondrometer and the standard 0.25 liter chondrometer and to carry out the comparative assessment of grain nature of spring triticale plants. The investigations were carried out in 2015 on 10 breeding lines of soft wheat of hybrid origin (F7-F9) and the VIR triticale collection from the 2013 nursery of the Siberian Institute of Plant Growing and Breeding. The moisture content of the grain was reduced to 13%. The grain nature of triticale was determined by microchondrometer only. This parameter of every wheat samples was determined by the standard method according to GOST. Then wheat grains were put in the microchondrometer (the diameter is 1.8 cm, the height is 1.125 cm, the volume is 2.86 cm3), tightly pressed with a plastic plate and leveled the seeds at the level of the edges. It was weighed on the scales LK-600. The procedure was repeated five times for every sample. Both methods showed almost the same ranking of the wheat lines. The correlation coefficient between the average data of grain nature from microchondrometer and from standard chondrometer was 0.98. The maximum error of weighting, equal to 2.3%, allows using the microchondrometer for the estimation of grain nature of wheat and triticale at the early stages of breeding.
Keywords: chondrometer, grain nature, soft wheat, triticale.
Author Details: N.I. Stepochkina, research fellow; P. I. Stepochkin, D. Sc. (Agr.), leading research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Stepochkina N.I., Stepochkin P.I. Use of Microchondrometer for Determination of Grain Nature of Single Plants of Triticale and Wheat. Dostizheniya nauki i tekhniki APK. 2015. Vol. 29. No. 11. Pp. 39-40 (In Russ)