| 不同磷肥处理下苜蓿根颈抗寒性及在低温胁迫下糖类物质变化 |
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| 引用本文： | 陈卫东,张玉霞,丛百明,夏全超,田永雷,张庆昕,杜晓艳.不同磷肥处理下苜蓿根颈抗寒性及在低温胁迫下糖类物质变化[J].中国农业科技导报,2022,24(2):210-217. |
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| 作者姓名： | 陈卫东 张玉霞 丛百明 夏全超 田永雷 张庆昕 杜晓艳 |
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| 作者单位： | 1.内蒙古民族大学农学院，内蒙古自治区饲用作物工程中心，内蒙古 通辽 028041;2.内蒙古通辽市畜牧兽医科学研究所，内蒙古 通辽 028000;3.内蒙古自治区农牧业科学院，呼和浩特 010010 |
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| 基金项目： | 内蒙古自然科学研究基金项目(2020MS03081);内蒙古自治区科技储备项目(2018MDCB032);荒漠草原区草畜一体化关键技术集成与示范项目(2019GG245) |
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| 摘 要： | 为探究磷肥种类及施用量调控紫花苜蓿抗寒性及糖类物质变化的机制,以'公农1号'紫花苜蓿为材料,采用二因素(磷肥种类和施肥量)随机区组试验设计,设置分别施用重过磷酸钙和磷酸二铵0、100、200、300和400 kg·hm-2(以P2O5计),于越冬前期将不同处理的根颈收获后分别进行冷藏(4℃)和冷冻(-20℃)处理,对低...
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| 关 键 词： | 磷肥 苜蓿 抗寒性 糖类物质 |
| 收稿时间： | 2021-01-27 |
Cold Resistance of Alfalfa Root Neck Under Different Phosphate Fertilizer Treatments and Changes of Carbohydrate Under Low Temperature Stress |
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| Weidong CHEN,Yuxia ZHANG,Baiming CONG,Quanchao XIA,Yonglei TIAN,Qingxin ZHANG,Xiaoyan DU.Cold Resistance of Alfalfa Root Neck Under Different Phosphate Fertilizer Treatments and Changes of Carbohydrate Under Low Temperature Stress[J].Journal of Agricultural Science and Technology,2022,24(2):210-217. |
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| Authors: | Weidong CHEN Yuxia ZHANG Baiming CONG Quanchao XIA Yonglei TIAN Qingxin ZHANG Xiaoyan DU |
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| Institution: | 1.Inner Mongolia Autonomous Region Forage Crop Engineering Technology Research Center，Agricultural College of Inner Mongolia Minzu University，Inner Mongolia Tongliao 028041，China;2.Tongliao Institute of Animal Husbandry and Veterinary Science，Inner Mongolia Tongliao 028000，China;3.Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences，Hohhot 010010，China |
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| Abstract: | In order to explore the mechanism of phosphate fertilizer type and application rate regulating the cold resistance and sugar content of alfalfa， taking‘Gongnong No. 1’ alfalfa was as the material， and a two-factor （phosphorous fertilizer type and fertilizer amount） randomized block experiment design was set， which two types of phosphorous fertilizer type （heavy superphosphate and diammonium phosphate） were used and the applying amounts were set according to 0， 100， 200， 300， 400 kg·hm-2 （calculated as P2O5） in autumn. The root neck vitality and contents of soluble sugar， sucrose， fructose， starch in root neck and the tap root 1 cm below the root neck under low temperature storage （4 ℃） and low temperature freezing （?20 ℃） were measured. The results showed that， compared with 4 ℃ treatment， the root neck vitality and content of soluble sugar were higher and the content of starch was lower under ?20 ℃ treatment. The root neck vitalities and contents of fructose in heavy superphosphate treatments under ?20 ℃ treatment were higher than those in diammonium phosphate treatments， but the starch contents were conversely. And the Optimum amounts of two types of phosphate fertilizers were 300 kg·hm-2 （P2O5） with higher contents of soluble sugar and fructose in the root neck of alfalfa. In conclusion， a moderate amount of phosphorus could promote the conversion from starch to soluble sugar in alfalfa root neck and improve the cold resistance of alfalfa. Application of superphosphate with 300 kg·hm-2 （P2O5） in Horqin sandy land was conducive to the safe overwintering of alfalfa. |
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| Keywords: | phosphate fertilizer alfalfa cold resistance sugar substance |
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