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Scientific Papers Series A. Agronomy

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Table 6. Quantity of ß-glucans in the grains of the<br />

examined genotypes of oats<br />

Genotypes<br />

Absolute dry<br />

substance (%)<br />

2010 2011 2012<br />

Average for the<br />

period,<br />

ß-glucan (%)<br />

No 1 90.83 1.582 e 3.430 f 2.623 i 2.545 c<br />

07/ Z1 90.05 3.377 b 2.676 h 2.366 j 2.806 bc<br />

Dunav 1 90.12 3.164 c 3.249 g 2.828 h 3.080 b<br />

08/Z2 89.46 3.722 a 4.065 c 4.057 a 3.948 a<br />

M-K 90.60 3.008 d 3.426 f 2.870 g 3.101 b<br />

Kt 651 90.78 - 3.739 e 3.150 c 3.444<br />

Resor 1 90.33 - 1.645 i 3.142 d 2.393<br />

Kt 718 90.36 - 4.090 b 3.402 b 3.746<br />

Radolishta 90.31 - 3.797 d 3.025 e 3.411<br />

Kuceviste 90.51 - 4.097 a 2.946 f 3.521<br />

Table 7. Percentage of hulled grain and chaff in years<br />

and on average for the period for all examined winter<br />

genotypes of oats.<br />

Genotypes 2010 r. 2011 r. 2012 r.<br />

Hulled<br />

grain<br />

(%)<br />

Chaff<br />

(%)<br />

Hulled<br />

grain<br />

(%)<br />

Chaff<br />

(%)<br />

Hulled<br />

grain<br />

(%)<br />

Average for<br />

the period,<br />

%<br />

Chaff Hulled Chaff<br />

(%) grain<br />

No 1 80.05 19.95 86.50 13.50 73.70 26.30 80.08 19.9<br />

07/ Z1 78.50 21.50 76.20 23.80 70.35 29.65 75.02 24.9<br />

Dunav 1 - - 74.50 25.50 73.30 26.70 73.90 26.1<br />

08/Z2 66.50 33.50 64.90 35.10 71.85 28.15 67.75 32.2<br />

M-K 70.50 29.50 85.20 14.80 73.60 26.40 76.43 23.6<br />

Kt 651 - - 70.95 29.05 70.30 29.70 70.62 29.4<br />

Resor 1 - - 71.65 28.35 70.05 29.95 70.85 29.1<br />

Kt 718 - - 74.90 25.10 74.45 25.55 74.67 25.3<br />

Radolishta - - 73.75 26.25 70.55 29.45 72.15 27.8<br />

Kuceviste - - 70.50 29.50 69.25 30.75 69.87 30.1<br />

During the vegetation period 2010-2011, the<br />

genotypes have a higher percentage of hulled<br />

grain compared with the vegetation period<br />

2011-2012. On average for the period of<br />

observation, the highest percentage of hulled<br />

grain was registered for line No 1 – 80.08%<br />

followed by line M-K (76.43%) and line 07/Z1-<br />

75.02%.<br />

The highest percentage of chaff was registered<br />

for line Kuceviste – 30.1%, which, therefore,<br />

has the lowest percentage of grains.<br />

CONCLUSIONS<br />

Some new lines of winter oats with a high<br />

quantity of proteins are line Kt 718 – 14.6%<br />

and line 07/ Z1. The content of fats varies from<br />

5.04 to 8.89% and the content of starch varies<br />

from 42.9 to 46.93. Depending on their use, we<br />

can choose genotypes with different proportions<br />

of the main nutrients.<br />

The highest content of ß-glucans was registered<br />

for line 08/Z2-3.95% followed by lines Kt 718<br />

(3.75%) and Kuceviste (3.52%).<br />

A relatively large percentage of hulled grain<br />

and low percentage of chaff was registered for<br />

line No 1 (80.09%/19.9%), line M-K<br />

(76.43%/23.6%) and 07/Z1 (75.02%/24.9%).<br />

ACKNOWLEDGEMENTS<br />

This research work was carried out with the<br />

support of Project No 06-10 at the <strong>Scientific</strong><br />

Research Center-Agricultural university –<br />

Plovdiv, Bulgaria.<br />

REFERENCES<br />

Brunner B.R., Freed R.D., 1994. Oat grain b-glucan<br />

content as affected by nitrogen level, location, and<br />

year. Crop Science, 34, p. 473-476.<br />

Georgieva T., Zorovski P., Gotcheva V., Taneva P.,<br />

2010. Beta – glucan content of oat grain grown in<br />

south Bulgaria. I. Effect of oat genotype and year on<br />

the grain ß-glucan content. Jubilee International<br />

Conference, Agricultural university – Plovdiv.<br />

<strong>Scientific</strong> papers, Vol. LV, book. 1, p. 225-230.<br />

Frey K.J., Holland J.B., 1999. Nine cycles of recurrent<br />

selection for increased grain-oil content in oat. Crop<br />

Science 39, p. 1634-1641.<br />

Fulcher, 1993. Mixed lincage B – glucan, protein<br />

content, and kernel weight in Avena species.<br />

American Association of Cereal Chemists, Inc, vol.<br />

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Grain yield, nutrient content and lipid profile of oat<br />

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crops research, vol. n o 1-2, p. 92-100.<br />

McCleary B.V., Codd R., 1991. Measurement of (1-3)<br />

(1-4)-ß-D-glucan in barley and oats: a streamlined<br />

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Agriculture, 55, p. 303-312.<br />

Miller S.S., Wood P.J., Pietrzak L.N., Popova<br />

R.G., Zhalnov R.I., Valcheva E., Zorovski P.,<br />

Dimitrova M., 2012. Estimates of environmental<br />

conditions of Soils in plovdiv region in applying the<br />

new Herbicides for weed control in major Field<br />

crops. Journal of Central European Agriculture, 13<br />

(3), p.595-600 DOI: 10.5513/JCEA01/13.3.1096.<br />

388

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