| 康恩祥,乃小英,陈年来,张玉鑫,乔昌萍,韩国君.诱抗剂复合处理对甜瓜光合特性及果实品质的影响[J].干旱地区农业研究,2012,30(2):150~153 |
| 诱抗剂复合处理对甜瓜光合特性及果实品质的影响 |
| Effects of inducing treatment on photosynthetic characteristics and fruit yield and quality of muskmelon |
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| DOI：10.7606/j.issn.1000-7601.2012.02.26 |
| 中文关键词: 诱抗处理 甜瓜 光合特性 果实 |
| 英文关键词:inducing treatment Cucumis melo L. photosynthetic characteristics fruit |
| 基金项目:甘肃省农业生物技术研究与应用开发项目“利用基因激活技术提高瓜类作物抗病性的研究（GNSW-2006-08） |
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| 中文摘要: |
| 诱导抗性是发掘植物内在抗性机制的一种新对策，诱抗剂的研发是未来提高作物内在抗逆性的必然途径。本试验以甜瓜银帝和卡拉克塞为试材，用苯丙塞二唑(BTH)、水杨酸(SA)、纳米硅(SiO2)作诱导剂，在甘肃民勤大田不同时期对甜瓜进行全株喷雾复合处理，研究诱抗剂对甜瓜叶片光合能力以及果实品质的影响。结果表明：经诱导剂处理后植株叶片的净光合速率、气孔导度显著大于对照，初花期BTH+SA的处理效果最好，两品种的叶片净光合速率分别比对照提高了39.6%和32.0%，说明经诱导处理后叶片的光合能力增强。采前对甜瓜植株进行处理，能明显提高果实单产、可溶性固形物含量，初花期BTH+SA效果最好，银帝分别比对照提高了22.6%、9.0%，卡拉克塞分别提高了24.1%、27.6%。各处理对卡拉克赛可溶性固形物含量的影响较银帝明显。处理两次的与一次的、复合诱导剂与单一诱导剂之间无显著差异。 |
| 英文摘要: |
| Disease-resistance induced by phytoextraction is one of the new disease-prevention methods. Natural virus-resistant substances from plants are hot spots of researches on bio-prevention in recent years. Two varieties of muskmelon (Cucumis melo L.) Yindi and Kalakesai were exposed under different inductors to investigate the responses of photosynthetic characteristics and fruit yield and quality in Gansu Province. The results indicated that the inductor could significantly enhance net photosynthetic rate(Pn) and stomatal conductance (Gs) of the two varieties in the process of growth and development of melon and it could improve the yield and solubility of fruit. The Pn increased by 39.6% and 32.0% respectively in Yindi and Kalakesai under the treatment of BTH+SA at the earl
y flowering stage. Under the treatment before harvest, the yield and solubility of fruit was enhanced significantly. The effect was the best when BTH+SA was sprayed at early flowering stage, in which the yield and solubility of fruit of Yindi increased by 22.6% and 9.0%, and those of Kalakesai increased by 22.6% and 9% compared with control. The effect of all the treatments was more remarkable on the solubility of fruit of Kalakesai than that of Yindi. There was no signifiant difference either between twice and once spraying, or between mixed inductor and single inductor. |
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