Collection, agronomical evaluation and moisture stress and salinity tolerance of genetic material of sainfon
2005
Khayyam Neku`i, Mojtaba | Sa`idi, Qodrat Ol-Lah | Razm Ju, Khurshid | Kaboli, Mohammad Mehdi | Mokhtar Zadeh, A`li Akbar
In order to investigate genetic variation for forage yield and quality characters in sainfoin, an experiment was conducted in 2002 at Research Station of Jahad Agricultural Research Center of Isfahan (Shahid Fozveh Station) in which 47 ecotypes of sainfoin were evaluated for dry forage yield and quality traits, using a randomized complete block design with two replications. The results showed that the genotypes had significant effect on all the studied traits, indicating that there was genetic variation for the traits among the ecotypes. The raw protein and soluble sugars of forage varied from 21.48% to 23.75% and from 17.21% to 22.4%, respectively. The variation for forage digestibility among the ecotype was 74.73% to 78.08%. The ADF and NDF had variation of 22.6% to 27.29% and 323.08 to 36.40%, respectively. The variation for ash content of forage was 5.66% to 6.43 %, for fiber content was 21.43% to 24.5% and for dry forage yield per plant was 21.5 to 49.8g. Broad-sense heritability for traits of raw protein content, forage digestibility, soluble sugars, ADF, NDF content, ash content, fiber content and dry forage yield per plant were 54%, 45%, 63%, 58%, 31%, 64%, 59% and 71%, respectively. These results showed that there were high genetic variation for dry forage yield and quality traits among the ecotypes of sainfoin and this variation can be used in breeding and selection programs of sainfoin to improve forage yield and its quality.
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