Hu, Tianming

Wang, Quanzhen

Yang, Peizhi

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings XXI International Grassland Congress / VIII International Rangeland Congress Yield Trait Comparison of Twenty Two Alfalfa Cultivars Tianming Hu Northwest A&F University, China Peizhi Yang Northwest A&F University, China Quanzhen Wang Northwest A&F University, China Follow this and additional works at: https://uknowledge.uky.edu/igc  Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/21/15-3/24 The XXI International Grassland Congress / VIII International Rangeland Congress took place in Hohhot, China from June 29 through July 5, 2008. Proceedings edited by Organizing Committee of 2008 IGC/IRC Conference Published by Guangdong People's Publishing House This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact UKnowledge@lsv.uky.edu. 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅱ 　 瞯 771　 瞯Grasslands/Rangelands Production Systems ——— Forage Quality ,Conservation and UtilizationYield trait comparison of twenty two Alfalfa cultivarsHu Tianming 倡 Yang Peizhi Wang QuanzhenCollege o f Animal Sciences , Northwest A &F University , 712100 , China , E‐mail : hutianming ＠ 126 .comKey words : alfalfa ,yield trait ,yield ,nutritive valueIntroduction Alfalfa is a quality perennial legume pasture with deeply distributing roots and commonly known as the king ofpastures .Now most of the alfalfa cultivars that are planted in northwest China are poorly resistant to pests and disease and havelow yields so that they are compromised in their extension and adoption in production . Therefore , it is imperative to introducehigh‐quality and highly resistant alfalfa cultivars for crop production restructuring and animal husbandry development in aridand semi‐arid regions of Northwest China .In ２００２ , The research group of the study introduced １９ foreign alfalfa cultivars and planted them with domestic alfalfa cultivarsZhongmu １ , GuanzhongMuxu and Guyuanzhihua to compare such traits as hay yield and quality and adaptability of the twentytwo alfalfa cultivars in order to screen the alfalfa cultivars suitable to be extended and adopted in arid and semi‐arid regions andprovide materials for alfalfa breeding and supply references to the development of prata‐culture industry in west China .Materials and Methods The trial farmland (３４°２１′ N and １０８°１０′E , Elevation of ４５４ .８m) was located in the experiment plotnorth of Yangling International Exhibition and Convention Center . The experiment plot has deep soil , which has an organicmatter content of １５ .０ g / kg , a total nitrogen of ５６mg / kg , an phosphorus content of more than ３ .４ mg / kg , and an availablepotassium content of １６５mg / kg and pH of ８ .２６ .Twenty two alfalfa cultivars were chosen for the trial , of which there were １９ improved alfalfa cultivars introduced from abroadand four native breeding cultivars of ChinaResults and discussions The ３ year comparison trial of different alfalfa cultivars tested productive capacities of １９ alfalfa cultivarsintroduced from abroad and three Chinese alfalfa cultivars , Zhongmu １ , Guanzhongmuxu and Guyuanzihua umder the rainfall ofabout ６２０ mm . Results of the trial showed that most of the introduced alfalfa cultivars grew and performed well in centralShaanxi , presenting strong ecological adaptability and higher hay yields and high nutritional values than Chinese landracecultivars which agrees with the results that Wang Chengzhang et al obtained in their study .The twenty two alfalfa cultivars were ranked in terms of their hay yields , crude protein contents , crude fiber contents anddigestibility . Sanditi took the first position of productive capacity , followed by Affinity , Haygrazer , Total , Victoria . Thesecan be extended and planted in a large area in northwest China .As a perennial legume pasture with high quality , high yield and strong resistance , Alfalfa has a performance period of aboutseven years . The productive capacities of the alfalfa cultivars were obtained by conducting the trial under natural circumstanceswithout irrigation and fertilization all the year around . Therefore , alfalfa can be properly irrigated and fertilized with smallamounts of fertilizers to further improve its yield and quality and speed up the progress of farmers and herdsmen getting rid ofpoverty and become better off .Conclusions A three year comparative trial was conducted in Yangling to comparatively analyze major yield traits of twenty twodomestic and foreign alfalfa cultivars ( Medicago sativa L .) . Its results showed that the foreign alfalfa cultivars generally grewwell in central Shannxi and their productive capabilities were commonly superior over those of the landrace alfalfa cultivars . Ofthe twenty two alfalfa cultivars , Algonquin had the best yield traits , followed by Affinity , Haygrazer , Total , Victoria , andthese cultivars were worth being extended and adopted in large areas in central Shaanxi .

Yield Trait Comparison of Twenty Two Alfalfa Cultivars

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Yield Trait Comparison of Twenty Two Alfalfa Cultivars

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