钾肥对骏枣枣头枝与二次枝抗寒性的影响  

Effect of Potassium on Cold Resistance of Primary Branch and Secondary Branch of Junzao Jujube

作　　者：罗宪[1] 吴翠云[1,2] 林敏娟[1,2] 王合理[1] 郭明[1] 尤腾飞[3] 

机构地区：[1]塔里木大学植物科学学院,新疆阿拉尔843300 [2]新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室,新疆阿拉尔843300 [3]塔里木大学生命科学学院,新疆阿拉尔843300

出　　处：《塔里木大学学报》2012年第4期28-31,共4页Journal of Tarim University

基　　金：国家科技支撑计划项目子课题(2011BAD48B01);新疆生产建设兵团农业类产学研重大专项(2010ZX02);塔里木大学校长基金创新群体项目(TDZKCX1001);国家973计划前期专项(2010CB134406)

摘　　要：以四年生直播密植骏枣树为材料,研究钾肥不同施肥时期和施肥量对枣树枣头枝和二次枝抗寒性的影响。结果表明,增施钾肥在整体上提高了骏枣枝条的抗寒能力,且枣头枝的抗寒性要大于二次枝,在果实膨大期施30 kg/667m2的钾肥显著提高了骏枣枝条的过氧化氢酶活性和脯氨酸含量,同时也显著降低了骏枣枝条的丙二醛含量,为钾肥的最佳施肥方案。Take four years old close planting Junzao as materials, the effect of different potassium amount and different applying periods on cold resistance of primary branch and secondary branch of Junzao Jujube was studied, the results showed that the ability of cold resistance of Junzao branches increased by increasing of potassium amount, and the ability of cold resistance of primary branch was greater than secondary branch, by applying 30 kg / 667m2 potash in the expansion period of Junzao. The CAT and Pro were significantly higher, at the meantime, the MDA reduced significantly.

关 键 词：钾肥 骏枣 枣头枝与二次枝 相关抗寒指标 

分 类 号：S665.1[农业科学—果树学]