Title: Effect of Spacing and Intra-spacing under Hole-seeding Conditions on Alfalfa Seed Yield and Quality.
Abstract: A study was conducted in Jiuquan,Gansu Province to determine the effects of spacing and intra-spacing on alfalfa seed yield and quality,and the result in 2004(the 1st seed-producing year) showed that both of the spacing and intra-spacing affected alfalfa seed yield and yield components significantly(P0.05).With the increase of spacing and intra-spacing from 60cm and 15cm to 100cm and 60cm,seed yields decreased form 1240 kg/hm~2 and 1426 kg/hm~2 to 982 kg/hm~2 and 807 kg/hm~2 respectively.60cm × 15cm treatment recorded the highest yield,1833 kg/hm~2,and 100cm × 60cm treatment,the lowest,753 kg/hm~2.The seed yield differences between varieties were insignificant.Racemes/stem and pods/raceme went up significantly with the increase of spacing and intra-spacing while fertile shoots per square meter dropped dramatically(P0.05).Spacing and intra-spacing did not affect seed number/pod and seed weight significantly(P0.05).Significant differences were found in racemes/stem,seed weight,hard seed percentage,normal seedlings,first counts between varieties(P0.05).
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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