Importance of variety for yield performance and longevity of alfalfa

Abstract

Experiment I was conducted in the period 1995-1998. It included 12 alfalfa varieties, six domestic and six foreign. Experiment II was conducted in the period 1999-2000. It included eight domestic varieties (one experimental) and four varieties from Iran. The variety NS Banat ZMS II brought the highest 4-year yield of green forage, 73.1 t.ha-1, followed by L-XII, NS Slavija and the other domestic varieties. The foreign varieties brought significantly lower yields. NS Banat ZMS II had the highest average yield of dry matter, 17.1 t.ha-1. NS Mediana ZMS V was in the second place with 16.6 t.ha-1. Chemical composition was analyzed in 1996. The analyses indicated that the domestic varieties were superior in respect to the foreign ones. The contents of crude proteins ranged from 18,4 %, in K-22, to 22.1 %, in Novosađanka H-11. The foreign varieties had lower protein contents but also higher percentages of crude cellulose. In Experiment II, the variety NS Mediana ZMS V was in the first place according to the yields of green forage and hay, followed by NS Banat ZMS II, Novosađanka H-11, experimental variety, Panonka, NS Slavija, Begej, and the other domestic varieties. The Iranian varieties brought considerably lower yield of green forage and hay. Still, some of them are considered as important for further study and possible commercialization (Baghdady, Ghareh Yon Geh).

U ovom radu je ispitivana produktivnost 12 sorti lucerke. Prvi ogled izveden je u periodu 1995-1998 g. gde je uključeno 12 sorti lucerke od kojih su šest domaćeg a šest stranog porekla. Drugi ogled obavljen je 1999 i 2000 g. a zastupljeno je osam domaćih i četiri strane sorte Iranskog porekla. Najviši prinos zelene krme u četiri godine ostvarila je sorta NS Banat ZMS II, zatim L-XII, kasnije priznata kao sorta Tisa. Po prinosu suve materije najviši prinos postigle su NS Banat ZMS II (17,1 t.ha -1) i NS Mediana ZMS V (16,6 t.ha-1) u četvorogodišnjem proseku. Hemijski sastav ispitivan je u 1996. god. gde se ističu domaće sorte po kvalitetu. Sadržaj sirovih proteina kretao se od (18,40 %) kod K-22 do (22,10 %) u sorte Novosađanka H-11. Strane sorte su imale niži sadržaj proteina. U drugom ogledu tokom dve godine ispitivanja istakla se sorta NS Mediana ZMS V po prinosu zelene krme i suve materije zauzela je prvo mesto. Po produktivnosti slede NS Banat ZMS II, Novosađanka H-11 i ostale domaće sorte. Iranske sorte u ogledu su dale znatno niže prinose krme, ali su neke značajne za dalja ispitivanja (Baghdady, Ghareh Yon Geh).