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Praca obejmuje wyniki badań nad wpływem dolistnego nawożenia borem, manganem i molibdenem na plon i wartość odżywczą białka nasion niektórych odmian grochu siewnego i peluszki. Stwierdzono, że zastosowane mikroelementy, szczególnie bor i mangan, wpłynęły korzystnie na plony nasion, natomiast nie miały istotnego znaczenia ani dla procentowej zawartości białka w nasionach, ani też dla jego składu aminokwasowego i wartości odżywczej. Porównywane odmiany testowanych roślin różniły się zarówno zawartością białka, jak i jego składem aminokwasowym.
Both growth retardants, Bercema CCC and Flordimex T, increased yields of winter triticale grain. Flordimex T was more effective and incresed the yield by 15%. Both retardants shortened hight of stems and individual internods of winter triticale plants. Also, the retardants affected significantly yields of winter vetch seeds and its density per area unit. Fiordimex T nearly doubled yields of winter vetch and its density per area unit.
The effect or botanical composition of six spring grain (wheat, triticale) + legume (peas, vetch, and field peas) mixture, with variable contribution of legume plants (15 and 30%) on grain and seed yield and its amino acid composition, was studied in the years 1990-1992. A negative relationship between yielding of mixtures and actual contribution of legume plants, and a positive one, between contribution or legume plants to total yield and total protein content in the yield, were found. The highest yield was recorded for the mixture of wheat + vetch (5.67 ha^-1 ; with 1.24% vetch), and the lowest for the mixture of triticale + held peas (4.70 t ha^-1 ; with 5,95% field peas). Variable contribution or legume plants to the mixtures (15 and 30%) had no significant effect on grain and seed yield nor on protein yield. In contrast, the weather affected significantly grain and seed yield and protein yield of (he mixtures. The most favourable and the least favourable year was 1990 and 1992, respectively. The highest values of chemical score (CS) and exxential amino acid index (EAAI) were obtained for the mixtures of triticale + field peas. The protein of these mixtures was characterized by a high content of Lys, lie and Thr.
The effect of botanical composition of winter grain (rye, triticale cv. Ugo, and trilicale cv. Almo) + hairy vetch mixtures and graded nitrogen fertilization levels on grain and seed yield, protein yield and its amino acid composition, was studied in the years 1990-1993. The nutritional value of protein was expressed by chemical score (CS) and essential amino acid index (EAAI). It was found that both chemical composition and nitrogen fertilization affected significantly yield and its composition. Increasing grain + seed and protein yield, and increasing actual contribution or vetch to the yield, led to an increased total amino acid content and higher EAAI of the mixtures Increasing nitrogen fertilization levels decreased a lysine content in the rye + vetch and the triticale (cv. Almo) + vetch mixtures. In contrast, a content of this amino acid in the triticale (cv. Ugo) + vetch mixture was increased. The weather affected significantly both yield and composition of the mixtures. The highest values or a total essential amino acid content and EAAI were obtained in the year 1991, and the lowest ones in the year 1993.
The effect of growth retardant (Bercema CCC), cereal components (wheat vs. tríncale), legume components (peas vs. field peas vs. vetch) and their percentage (0 vs. 15 vs. 30) in cereal-grain mixtures on their yield and its structure were studied in the years 1990-1992. It was found that the botanical composition of the mixtures had no effect on their yield nor on the yield of cereals. However, the yield of legume plants was significantly affected. The legume plants grown with triticale gave 15% higher yields as compared with those grown with wheat. The yield of mixtures was determined by the percentage of a legume component: the higher percentage of a legume plant, the lower yield of a mixture. Bercema CCC shortened cereal internods, on average, by 14.6 cm. The effect of the retardant was most apparent when applied on cerclas grown as monocultures. This effect was least pronounced when the retardant was applied on wheat grown with legume components contributing 30% to a cereal-legume mixture.
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