紫花苜蓿品种生产性能综合评价OA

To screen out the suitable alfalfa varieties for planting in sandy soil in Tongliao area,ten alfalfa variet-ies,namely Survivor,Stockpile,Dongmu No.2,Pounce,Spyder,FSG429SN,Gibraltar,Octane,Stronghold and MF4020,were selected as the research objects.The indicators such as plant height,stem diameter,hay yield and nutritional components were measured,and a comprehensive evaluation was conducted using the grey relational analysis method.The results showed that plant height of Stockpile,Pounce and Spyder were significantly higher than that of other variet-ies(P＜0.05),with Stockpile having the highest plant height.The stem diameter of Pounce was 2.64 cm.The dry weight,dry-wet ratio,soluble protein,sulfur,and chlorine content of MF4020 were the highest,with significantly higher chlorine content than that of other varieties(P＜0.05).The crude protein and crude ash content of Survivor were 18.13%and 9.85%,respectively.The lignin content of Stronghold was 9.38%.The crude fat and monosaccharide con-tent of Octane were 3.14%and 0.94%,calcium and magnesium content were 1.24%and 0.32%,respectively,the low-est acid detergent fiber and neutral detergent fiber content,and the relative feeding value and relative forage quality were the highest.The starch and potassium contents of Pounce were 1.42%and 2.48%,respectively.The phosphorus content of Survivor was 0.31%.Grey relational analysis revealed that Octane,Pounce,Stronghold,Stockpile and Spyder exhibited superior overall performance.Among them,Octane demonstrated favorable production potential under the sandy soil conditions of Tongliao.