Cold Tolerance Test of Different Watermelon Rootstock Cultivars(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Author(s):: LI Deming; CAI Xinglai; ZHOU Man; (Institute of Vegetable Science，Hainan Academy of Agricultural Sciences，Hainan，Haikou 571100)

Keywords:: watermelon; rootstock; graft; yield; cold tolerance; disease index

Abstract:: Taking one cultivar of self-rooted seedling(‘Xin No.1’) and seven cultivars of graft seedlings (rootstick were ‘Haizhen No.1’，‘Putongxiaozi’，‘Nanxiang Baizi’，‘Tiemuzhen’，‘Changzhenlishi’，‘Xuezhongjia’，‘Gangjian No.1’.common scion was ‘Xin No.1’.) as materials (their codes were A1，A2，A3，A4，A5，A6，A7，A8)，cold tolerance of Hainan watermelon at winter low temperature were studied.The results showed that，content of chlorophyll and prolin(Pro) decreased with processing time about six cultivars of graft seedlings (except of ‘Gangjian No.1’ rootstock seedling).Then，content of malondialdehyde(MDA) and soluble protein increased with processing time.Content of chlorophyll in graft seedling was higher than that in self-rooted seedling，but the content of MDA and soluble protein were inverse.Content of chlorophyll and soluble protein in ‘Gangjian No.1’ rootstock seedling were lower than that of self-rooted seedling，but the content of MDA and soluble protein were inverse(soluble protein was slightly high).In terms of disease index，graft seedling of ‘Gangjian No.1’ had the highest disease-sensitive index，and its self-rooted seedling was slightly low.Then，chilling damage was mild about graft seedlings of other rootstock cultivars.

[1]温克刚,吴岩俊.中国气象灾害大典:海南卷[M].北京:气象出版社,2009. 

[2]张蕾,霍治国,黄大鹏,等.海南冬种瓜菜气象灾害风险评估与区划[J].地理研究,2015,34(2):293-305.

[3]李德明,朱祝军,刘永华,等.镉对小白菜光合作用特性影响的研究[J].浙江大学学报(农业与生命科学版)，2005,31(4)：459-464.

[4]赵世杰,许长成,邹琦,等.植物组织中丙二醛测定方法的改进[J].植物生理学通讯,1994,30(3):207-210.

[5]陈龙,罗志良,谭光轩,等.小麦灌浆期叶片游离脯氨酸和可溶性蛋白质含量与抗旱性的关系[J].周口师范高等专科学校学报,2000,17(2):4-6.

[6]李琳,焦新之.应用蛋白染色剂考马斯蓝D-250测定蛋白质的方法[J].植物生理学通讯,1980,16(6):54-57.

[7]于贤昌,邢禹贤,马红,等.黄瓜嫁接苗抗冷特性研究[J].园艺学报,1997,24(4):348-352.

[8]韩志平,郭世荣,冯吉庆,等.盐胁迫对西瓜幼苗生长、叶片光合色素和脯氨酸含量的影响[J].南京农业大学学报,2008,31(2):32-36.

Last Update: 2016-01-13