Research On Applicability Of Oat (Avena Sativa L.) Varieties In Ningxia Yellow River Rrrigation Area

In order to screen the cultivars of Avena sativa L.adapted to the local climate type in Ningxia and enrich the forage resources in the area,15 oat varieties were planted in the Shachengzi area of Xixia District,Ningxia,.By observing the growth period,Characteristics,production performance and nutritional value of the indicators,and the use of membership function comprehensive evaluation method,the purpose is to select suitable for cultivation in Ningxia strong adaptability,high yield varieties.The main findings are as follows:The growth period of 15 oat varieties was about 84 to 106 days,and 15 oat varieties were adapted to the local ecological environment in Ningxia and grew well.Except for big oats,Han and Jiayan 2 were 85%The lodging.Daya Yan 2,Meng Long and Wrangler's growth period is shorter,about 84 to 86 days,while the Han and sweet Yan on the growth period is more longer,about 98 to 104 days.During the whole growth period,the plant height change of oat was "S" type,and the different oat varieties were different in different growth stages.The local oat was significantly higher than other cultivars at different growth stages.At the booting stage,the highest height was the greenhouses,115.75 cm,and the lowest was the pony,which was 81.93 cm.growing the fastest varieties is the big oats,followed by the dream dragon,plus Yan 2 and Monica,the slowest growth is Kona.The growth rate of the whole shoot was slow,and the growth rate was faster at the jointing stage and the booting stage.The growth rate of the booting stage to the mature stage was slower.The yield of hay was significantly different(0.5%),and that of Kona was 7950kg/hm2 followed by horses,7791kg/hm2,oats,6500 kg/hm2 and Tana,for 6321 kg/hm2.The lowest yield of hay is 2908kg/hm2.The ratio of stems and leaves of each oat showed significantly(p<0.05),the highest was Han,the ratio was 0.67,the lowest was the Wrangler,the ratio was 0.26 followed by the horse,the ratio was 0.28.Comprehensive analysis of horses and large oat hay high yield,and leaf volume is rich,can be used for livestock forage.The seed yield of 15 oat varieties was significantly different(p<0.05),and the seed yield of Kona was the highest,which was 3125 kg ·hm-2,and the lowest seed yield was 1165 kg · hm-2,The spike weight,panicle length,spikelet number and number of spikelets were significantly different(p<0.05),among which sharp,Baylor,Kona and Tana were the most spike,while the local oats and oats were the weakest The Large oats,sweet yan one,kona and tana spike the longest,while the local oats,grazing horses,horses and youngsters ear shortest.Kona,Baylor,Monica and Tana spawning the largest number of grains and local oats,plus Yan 2 and Han spike the smallest number of grains,from the number of branches and branches of view,Monica,sweet Yan 1,Tana And Baylor's branches the largest number and Menglong,local oats and plus Yan 2 number of branches at least.According to the results of the test and combined with field observation,Monica,Tana and Kona seed production is higher,while the local oat and add Yan 2 seed yield is poorly.The contents of CP,ADF and NDF in the 15 oat varieties were significantly different(P<0.05),Kona,Qingmu,Big oat and Jiayan No.2crude protein content is higher,Local oat minimum,While the content of neutral detergent fiber and acid detergent,Kona and Bigoat is relatively low.For livestock,palatability is better,more nutritious,higher digestibility.Comprehensive analysis of 15 oat varieties in the crude protein content,Fine horse and Cayuse is low,ADF and NDF content is higher,the quality is the worst.Vice Konar and the big oat of the best quality.For 15 oat varieties of net photosynthetic rate,stomatal conductance,intercellular CO2 concentration,transpiration rate and water use,were significantly different(P<0.05),and using cluster analysis,the Otana and monica photosynthesis characteristic is better.The rank of comprehensive performance for the selected 11 oat varieties is Otana>Monica>Sharp>Sweet yan No.1>Kona>Magnum>Big oat>Big oat>Local oat>Fine horse>Qingmu>Jiayan No.2>Cayuse2>Cayuse1>Dahan,this can be regarded the basis for practical production.