INTRODUCED FORMS OF RED CLOVER (TRIFOLIUM PRATENSE L.) OF HAYFIELD-PASTURE DIRECTION OF THE USE ON NORTH CAUCASUS - Ecological Consequences of Increasing Crop Productivity - page 13

cal traits of all samples were evaluated in comparison with standard cultivar Daryal,
which had been recommended for North Ossetia—Alania from 1993. The authors of
the cultivar are S.A. Bekuzarova and B.K. Mamsurov. Biochemical analysis of initial
samples of red clover was conducted according to common methods [5]. The follow-
ing parameters were evaluated: content of dry matter, protein, nitrogen, ash, calcium,
phosphorus, cellulose, fat, and sugar. Statistical analysis included descriptive statistics
and analysis of variance (ANOVA).

2.3 RESULTS AND DISCUSSION
Biochemical analysis of samples in our study revealed that on the stage of stooling,
percent content of dry matter was lower than in the following stages of ontogeny. On
the contrary, content of raw protein, potassium, phosphorus, fat, and sugar slightly
exceeded similar indices in the stages of budding and beginning of flowering. High
content of dry matter and raw protein on the stage of stooling distinguished introduced
forms of SL-38 (20.12 and 21.37%, respectively) and Dargavski (19.76 and 20.06%,
respectively). The largest content of sugar was found in SL-38 (5.43%) and Gornaya
Saniba (4.82%), while calcium and potassium were abundant in standard Daryal (2.08
and 2.87%, respectively). The largest content of ash was observed in SL-38 (12.27%)
and standard Daryal (12.66%), phosphorus was abundant in SL-38 (1.09%) and wild
introduced forms (0.98-1.02%), and cultivar Yaskravy exceeded all other samples on
cellulose content (21.72%) (Figure 2.1, Table 2.1).

FIGURE 2.1 Content of dry matter in clover samples on the stage of stooling, %.