Съдържание на суров протеин в люцернови генплазми на основа връзката му с някои агрономически признаци
2014
The high concentration of crude protein in the forage is one of the primary requirements for alfalfa varieties. A best balance between quantity and quality in forage crops is the most important target of the breeding research, since these traits are generally inversely correlated. The experiment was carried out during 2009 to 2012 at the Experimental field of Institute of Agriculture and Seed Science ‘Obraztsov chiflik’ – Rousse. Seven synthetic population and Prista 2 variety – standart were included. The objective of this study was to determine crude protein content in dry matter of new germplasm and using the methods of correlative and regressive analysis to evaluate its relationship with some agronomic traits – dry matter yield, grass stand height and regrowth rate after cutting. The synthetic population SP05–26 was characterized with the highest protein content in dry matter (19.46%). The strongest complex interaction (R = 0.82) of the studied traits on the crude protein content in the second year of alfalfa growing was found. The data indicate that there was strong negative correlation between crude protein content and both grass stand height and regrowth rate after cutting (r = -0,80) and (r = -0,68), respectively. In the following years these interaction reduced.
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