中间砧对脐橙叶片水势的影响-中柑所在线.PDF

2003 16 4 西 南 农 业 学 报 V l1 16 N 14 S uthw est China J urnal f Agricultural Sciences 65 : 1001- 4829 ( 2003) 04- 0065- 04 洪棋斌, 向素琼, 龚桂芝, 陈克玲* ( , 400712) : 对基砧均为枳, 中间砧分别为锦橙和兴津温州蜜柑的4 个不同脐橙品系, 以及无中间砧的锦橙和兴津温州蜜柑对照, 进 了早晨和中午的叶片水势测定早晨, 叶片水势一般差异不显著, 只是在田间特别干旱时, 锦橙中间砧的脐橙叶片水势才显著低 于温州蜜柑中间砧, 对照锦橙的叶水势亦低于温州蜜柑; 中午, 锦橙中间砧的脐橙叶片水势 一般低于温州蜜柑中间砧, 在田间水分 蒸腾较大的晴天以及干旱逐渐加重时, 二者的差异达到显著水平甚至极显著水平, 对照锦橙和温州蜜柑的叶水势呈现类似变化 不考虑中间砧影响时, 不同脐橙品系的叶片水势在早晨或中午 一般无显著差异结果表明: 中间砧是影响脐橙叶片水势高低及变 化的重要因素之 一, 温州蜜柑中间砧能更有效地阻抑脐橙接穗叶片水势的下降脐橙品种与中间砧的互作对叶片水势的变化也 有 一定的影响 : 柑桔; 中间砧; 水势 : S6661 1 : A Effects of inter-stock on leaf water-potentials in navel orange HONG Qi-bin, XIANG Su-qi ng, GONG Gu-zhi, CHEN Ke-lin ( Citrus Research Institute f Chinese Academy f Agricultural Sciences, Ch ngqing 400712, China) Abstract:Leaf w ater-p tentials( 7 1) f 4 lines f navel ranges( Jincheng range and Satsuma mandarin( Okizu base) inter-st cks, Jinch eng range and Satsuma mandarin w ere measured at early m rning and n n1T he results sh w ed that the inter-st ck was an imp rtant fact r affecting 7 1 in navel range1At early m rning, 7 1 f navel ranges f b th inter- sci ns w ere n t significantly different w hen dr ught did n t happened, but were significantly different when Jincheng range inter-st ck w as hit by severe dr ught with l w er 7 1. At n n, 7 1 in J incheng range w as usually significantly l wer than that in Satsuma mandarin during sun-shining and severe dr ught17 1 in Jincheng r- ange an d Satsuma mandarin c ntr ls sh wed similar variati n tren ds at early m rning and n n1 Key words:citrus; inter-st ck; water-p tential , , , , , , ) ) , , Slatyer Tayl r[ 1]