^(60)Co-γ射线辐射对蒙农杂种冰草性状的影响  

Effects of ^(60)Co-γ ray on the traits of Agropyron cristatum×A.desertorum cv.Mengnong

作　　者：高海娟 刘泽东 孙蕊 王晓龙 杨伟光 闫伟红[2] GAO Haijuan;LIU Zedong;SUN Rui;WANG Xiaolong;YANG Weiguang;YAN Weihong(Branch of Animal Husbandry and Veterinary,Heilongjiang Academy of Agricultural Sciences,Qiqihar,Heilongjiang Province 161005,China;Grassland Research Institute of Chinese Academy of Agricultural Sciences,Huhhot,Inner Mongolia 010010,China)

机构地区：[1]黑龙江省农业科学院畜牧兽医分院,黑龙江齐齐哈尔161005 [2]中国农业科学院草原研究所,内蒙古呼和浩特010010

出　　处：《中国饲料》2022年第7期117-120,共4页China Feed

基　　金：齐齐哈尔市科技局农业攻关项目(NYGG-201423);国家草品种区域试验站项目(16190078-1);黑龙江省农业科学院农业科技创新跨越工程项目(HNK2019CX08-11);中国农业科学院草原研究所基本科研业务费(1610332020020)。

摘　　要：本研究以蒙农杂种冰草为试验材料,应用^(60)Co-γ射线对其种子进行不同辐射剂量(30、60、120、180 Gy)处理后育苗单株移栽试验地,研究^(60)Co-γ射线辐射对蒙农杂种冰草株高、叶长、叶宽、穗长、穗宽、茎粗、干草产量等性状的影响。结果表明:随着辐射剂量的增加,蒙农杂种冰草的株高、叶长、干草产量均呈现先升高后降低的趋势。低辐射剂量30 Gy处理冰草平均高度较对照组高4.39 cm(P>0.05),干草产量较对照组显著提高21.34%(P<0.05)。高辐射剂量180 Gy处理株高、穗长、茎粗、干草产量均较对照组显著降低(P<0.05)。相关分析可知,株高、叶宽、茎粗与辐射剂量呈显著负相关(P<0.05),叶长、穗长、单株产量与辐射剂量呈负相关,但不显著(P>0.05)。In order to explore the effects of ^(60)Co-γ-ray radiation on the plant height,leaf length,leaf width,panicle length,panicle width,stem thickness and hay yield of Agropyron cristatum×A.desertorum cv.Mengnong,the Agropyron cristatum×A.desertorum cv.Mengnong was used as the test material,and the seeds were treated with different ^(60)Co-γrays(30,60,120,180 Gy).The results showed that with the increase of radiation dose,the plant height,leaf length and hay yield of Agropyron cristatum×A.desertorum cv.Mengnong showed a trend of first increasing and then decreasing.The average height of test material treated with low radiation dose(30 Gy)was 4.39 cm higher than that of the control group(P>0.05),and the hay yield was significantly increased by 21.34%compared with the control group(P<0.05).The plant height,panicle length,stem diameter,and hay yield of the high radiation dose(180 Gy)were significantly lower than those of the control group(P<0.05).Correlation analysis showed that plant height,leaf width,stem thickness were significantly negatively correlated with radiation dose(P<0.05).And leaf length,panicle length,yield per plant were negatively correlated with radiation dose,but not significant(P>0.05).

关 键 词：蒙农杂种冰草 ^(60)Co-γ射线辐射 农艺性状 干草产量 相关分析 回归分析 

分 类 号：S816.5[农业科学—饲料科学]