^(60)Co-γ射线辐照金柑花粉对果实生长发育及内源激素含量的影响  

Effect of Irradiating Fortunella crassifolia Pollen With ^(60)Co-γ Ray on Fruit Growth,Development and Endogenous Hormones

作　　者：春永强 刘勇[1] 刘德春[1] 郭鑫跃 洪鹏 杨莉[1] 

机构地区：[1]江西农业大学,江西南昌330045

出　　处：《核农学报》2018年第3期424-429,共6页Journal of Nuclear Agricultural Sciences

基　　金：江西省高等学校科技落地计划(KJLD13025)

摘　　要：为减少遂川金柑种子数,提高其品质和市场竞争力,本研究利用1 000 Gy的60Co-γ射线对遂川金柑花粉进行辐照处理,之后授粉于遂川金柑,并以未经辐照处理为对照(CK),研究辐照处理对遂川金柑果实生长发育及内源激素含量变化的影响。结果表明,与CK相比,辐照处理后遂川金柑饱满种子数减少,且果实可滴定酸含量、总糖含量、Vc含量和可溶性固形物(TSS)含量与CK差异不显著,但果实的大小和单果重明显降低。授粉后30 d,辐照处理的果实内源生长素(IAA)、赤霉素(GA)、细胞分裂素(ZT)、(GA+IAA+ZT)/ABA明显低于CK。本研究结果为60Co-γ射线辐照育种在金柑上的应用提供了一定的理论参考依据。In order to reduce the number of seeds of Fortunella crassifolia CV. Suichuangjingan,improve it＇s quality and competitiveness of the market,the pollen of Fortunella crassifolia CV. Suichuangjingan was treated with 1 000 Gy ^（60）Co-γ ray,the pollinated it to Fortunella crassifolia CV. Suichuangjingan,and the non-irradiated pollen was used as control. The effects of radiation pollen on fruit growth,development and endogenous hormones contents were studied.The results showed that compared with the no irradiated pollen treatment,radiating pollen decreased the number of seeds of Fortunella crassifolia CV. Suichuangjingan,and the titratable acid content,total sugar content,Vc content and TSS content had no significant difference,but the fruit size and fruit weight were decreased obviously. 30 d after the pollination,the endogenous of IAA,GA,ZT contents and（ GA ＋ IAA ＋ ZT）/ABA ratio of pollen irradiation group was apparently lower than CK. The results gives a reference for the application of ^（60）Co-γ ray radiation breeding in Kumquat.

关 键 词：遂川金柑 辐射花粉 种子数 果实品质 内源激素 

分 类 号：S666.1[农业科学—果树学]