西藏六种甘蓝型油菜光合特性研究及综合评价OA
Photosynthetic Characteristics and Comprehensive Evaluation of Six Brassica napus Varieties in Xizang
以西藏 6 种甘蓝型油菜为试验材料,采用盆栽法,通过测定盛花期油菜的光合及叶绿素荧光指标,探索 6 种油菜间光合差异,并利用主成分分析方法进行综合评价,以期为西藏油菜高光效育种提供参考依据.结果表明:6 种油菜中,"藏油 12 号"的 Pnmax、Pn、Gs、Ci、WUE 最大;"京华 165"的 Jmax、PARsat、ETR、α、Fo′、Fm′、Fv′/Fm′、YPS Ⅱ与剩余5 种油菜之间差异明显,值最大.综合各指标,6 种油菜光合能力强弱依次为"藏油 12 号">"京华 165">"藏油 5 号">"山油 2 号">"湘油 420">"大地 95"."藏油 12 号"光合能力最好,具有高产潜力,可作为西藏地区高光合油菜培育的重点材料.
Taking six varieties of Brassica napus from Xizang as experimental materials in a pot cultivation experiment,by measuring photosynthetic and chlorophyll fluorescence parameters during the full flowering stage,the photosynthetic differences among the six varieties were explored.Additionally,principal component analysis was employed for comprehensive evaluation,in order to provide references for high photosynthetic efficiency breeding in Xizang rapeseed.The results showed that among the six varieties,'Zangyou 12'had the highest values for Pnmax,Pn,Gs,Ci,WUE.'Jinghua 165'had significantly higher values for Jmax,PARsat,ETR,α,Fo′,Fm′,Fv′/Fm′,and YPSⅡcompared to the other five varieties.Considering all indicators,the photosynthetic capacity of the six varieties was ranked as follows,'Zangyou No.12'>'Jinghua 165'>'Zangyou No.5'>'Shanyou No.2'>'Xiangyou 420'>'Dadi 95'.'Zangyou 12'exhibited the best photosynthetic capacity and high yield potential,making it a key material for the cultivation of high photosynthetic efficiency rapeseed in Xizang.
杨广环;李施蒙;赵彩霞
西藏自治区农牧科学院 农业研究所,西藏 拉萨 850000西藏自治区农牧科学院 农业研究所,西藏 拉萨 850000西藏自治区农牧科学院 农业研究所,西藏 拉萨 850000
农业科技
光合特性甘蓝型油菜西藏综合评价
photosynthetic characteristicsBrassica napusXizangcomprehensive evaluation
《北方园艺》 2026 (18)
46-53,8
西藏自治区农业牧科学院农业研究所内统筹资助项目(NYSTC202505)西藏自治区自然科学基金资助项目(XZ202501ZR0036).
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