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1材料和方法1.1供试品种试验品种共18个:岳优518、宏优69、天优湘99、五丰优T025、深优957、金山优2155、德两优优1103、丰优2号、H37优207、胜优321、建优G2、中优9806、Q优1127、两优6206、T优H505、金优6530、奥龙优282、岳优360(对照)。1.2供试田块试验地位于桂阳县太和林场桐子坪村岸村自然组,距县城25km,烟后晚稻区,交通便利,辐射面广,地理坐标112°37′17.6″E、25°50′31.3″N,海拔
MATERIALS AND METHODS A. The tested cultivars were all tested in 18 varieties: Yueyou 518, Hongyou 69, Tianyouxiang 99, Wufengyou T025, Shenyou 957, Jinshanyou 2155, Takliangyou 1103, Fengyou 2, H37 You 207, Shengyou 321, Jianyou G2, Zhongyou 9806, Q You 1127, Liangyou 6206, T You H505, Jinyou 6530, Aurorayouyou 282 and Yueyou 360 (control). 1.2 The plots for trial plots are located in the natural group of Kengcun Village, Tongzi Village, Taihe Forest Farm, Guiyang County, 25km away from the county seat and the late rice area after the smog. The transportation is convenient and the radiation area is wide. The geographic coordinates are 112 ° 37’17.6 “E, 25 ° 50 ’31 .3 ”N, elevation