Effect Regulating of Nitrogen on Grain Development of Maize under Heat Stress

doi:10.7668/hbnxb.20192810

Abstract

Abstract:

Clarifying the regulation effect of nitrogen on grain development under heat stress at blister stage of maize is of great significance for rational fertilization,relieving the harm of heat and realizing high and stable yields.The effects of amount of nitrogen application(90,180,270 kg/ha,marked as N90,N180,N270)on the grain development and yield under heat stress during blister stage of maize were investigated by using Xianyu 335(XY335)and Zhengdan 958(ZD958)as materials and setting heat treatment(T)and control(CK).The results showed that heat stress broke the balance of endogenous hormones in maize grains, resulting in the decrease of abscisic acid (ABA) content in the grains of N180 and N270 of two maize varieties and auxin (IAA) content in the grains of N180 and N270 of ZD958; Soluble acid invertase activity (SAI) of upper grains was decreased, grain volume expansion and dry matter accumulation were blocked, abortion rate was increased, grain number per ear was decreased, and yield was significantly decreased. The heat-sensitive variety XY335 was more affected by heat stress than the heat-resistant variety ZD958.With the increase of nitrogen application rate,the negative effect of heat stress on corn grains development was intensified.Under heat stress,the ABA/GA₃ of XY335 and ZD958 decreased,the IAA and ZR contents increased,the grains volume and dry matter were more severely reduced,the abortion rate was significantly increased by 25.55,29.31 percentage points and 15.45,24.49 percentage points,respectively,the grains number per spike was decreased by 42.89%,52.68% and 20.95%,35.25%,respectively,and yield was significantly decreased by 44.29%,52.04% and 26.41%,39.94% respectively,under medium(N180)and high(N270)nitrogen treatments compared with low nitrogen(N90)treatment.Therefore,reasonable nitrogen application rate(N90)could alleviate the adverse effects of heat stress on corn grain development and reduce yield loss.

Key words: Maize, Heat stress, Nitrogen, Grain development, Yield

CAI Fengle, MA Xin, WANG Shuaili, LU Liangtao, SHAO Ruixin, LI Hongping, ZHAO Yali, MU Xinyuan, ZHAO Xia, LI Shuyan, LIU Tianxue. Effect Regulating of Nitrogen on Grain Development of Maize under Heat Stress[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(3): 119-127. doi: 10.7668/hbnxb.20192810.

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References 37

[1]	IPCC. Climate change 2013:The physical science basis.contribution of working group I to the fifth assessment report of the intergovernmental panel on climate change[M]. Cambridge: Cambridge University Press, 2013.
[2]	刘京宝, 杨克军, 石书兵. 中国北方玉米栽培[M]. 北京: 中国农业科学技术出版社, 2012.
	Liu J B, Yang K J, Shi S B. Maize cultivation in Northern China[M]. Beijing: China Agricultural Science and Technology Press, 2012.
[3]	李德, 孙义, 孙有丰. 淮北平原夏玉米花期高温热害综合气候指标研究[J]. 中国生态农业学报, 2015, 23(8):1035-1044.doi: 10.13930/j.cnki.cjea.150061. doi: 10.13930/j.cnki.cjea.150061
	Li D, Sun Y, Sun Y F. Use of integrated climatic index to determine high temperature damage to summer maize at florescence in the Huaibei Plain[J]. Chinese Journal of Eco-Agriculture, 2015, 23(8):1035-1044.
[4]	杨笛, 熊伟, 许吟隆, 冯灵芝, 张梦婷, 刘欢. 气候变化背景下中国玉米单产增速减缓的原因分析[J]. 农业工程学报, 2017, 33(S1):231-238.doi: 10.11975/j.issn.1002-6819.2017.z1.035. doi: 10.11975/j.issn.1002-6819.2017.z1.035
	Yang D, Xiong W, Xu Y L, Feng L Z, Zhang M T, Liu H. Analysis of reason for recent slowing maize yield increase under climate change in China[J]. Transactions of the Chinese Society of Agricultural Engineering, 2017, 33(S1):231-238.
[5]	高英波, 张慧, 王竹, 薄丽秀, 武智民, 薛艳芳, 钱欣, 代红翠, 韩小伟, 李宗新. 夏玉米品种花期耐热性鉴定与评价[J]. 山东农业科学, 2019, 51(6):43-48.doi: 10.14083/j.issn.1001-4942.2019.06.009. doi: 10.14083/j.issn.1001-4942.2019.06.009
	Gao Y B, Zhang H, Wang Z, Bo L X, Wu Z M, Xue Y F, Qian X, Dai H C, Han X W, Li Z X. Identification and evaluation of heat tolerance of summer maize varieties during flowering stage[J]. Shandong Agricultural Sciences, 2019, 51(6):43-48.
[6]	李少昆, 赵久然, 董树亭, 赵明, 李潮海, 崔彦宏, 刘永红, 高聚林, 薛吉全, 王立春, 王璞, 陆卫平, 王俊河, 杨祁峰, 王子明. 中国玉米栽培研究进展与展望[J]. 中国农业科学, 2017, 50(11):1941-1959.doi: 10.3864/j.issn.0578-1752.2017.11.001. doi: 10.3864/j.issn.0578-1752.2017.11.001
	Li S K, Zhao J R, Dong S T, Zhao M, Li C H, Cui Y H, Liu Y H, Gao J L, Xue J Q, Wang L C, Wang P, Lu W P, Wang J H, Yang Q F, Wang Z M. Advances and prospects of maize cultivation in China[J]. Scientia Agricultura Sinica, 2017, 50(11):1941-1959.
[7]	孙新素, 龙致炜, 宋广鹏, 陈长青. 气候变化对黄淮海地区夏玉米-冬小麦种植模式和产量的影响[J]. 中国农业科学, 2017, 50(13):2476-2487.doi: 10.3864/j.issn.0578-1752.2017.13.007. doi: 10.3864/j.issn.0578-1752.2017.13.007
	Sun X S, Long Z W, Song G P, Chen C Q. Effects of climate change on cropping pattern and yield of summer maize-winter wheat in Huang-Huai-Hai plain[J]. Scientia Agricultura Sinica, 2017, 50(13):2476-2487.
[8]	Cheikh N, Jones R J. Disruption of maize kernel growth and development by heat stress(role of cytokinin/abscisic acid balance)[J]. Plant Physiology, 1994, 106(1):45-51.doi: 10.1104/pp.106.1.45. doi: 10.1104/pp.106.1.45 pmid: 12232301
[9]	Cairns J E, Sonder K, Zaidi P H, Verhulst N, Mahuku G, Babu R, Nair S K, Das B, Govaerts B, Vinayan M T, Rashid Z, Noor J J, Devi P, San Vicente F, Prasanna B M. Maize production in a changing climate:Impacts,adaptation,and mitigation strategies[J]. Amsterdam:Elsevier:Advances in Agronomy, 2012, 114:1-58.doi: 10.1016/B978-0-12-394275-3.00006-7. doi: 10.1016/B978-0-12-394275-3.00006-7
[10]	张凤路, 赵久然, 王纪华. 离体条件下玉米籽粒发育调控研究[J]. 杂粮作物, 2001, 21(4):34-35.doi: 10.3969/j.issn.2095-0896.2001.04.014. doi: 10.3969/j.issn.2095-0896.2001.04.014
	Zhang F L, Zhao J R, Wang J H. Regulating study on maize kernel development in vitro[J]. Rain Fed Crops, 2001, 21(4):34-35.
[11]	Ho L C. Metabolism and compartmentation of imported sugars in sink organs in relation to sink strength[J]. Annual Review of Plant Physiology and Plant Molecular Biology, 1988, 39:355-378.doi: 10.1146/annurev.pp.39.060188.002035. doi: 10.1146/annurev.pp.39.060188.002035 URL
[12]	王纪华, 王树安, 赵冬梅, 倪军昌. 玉米籽粒发育的调控研究 Ⅲ.离体条件下的化学调控机理探讨[J]. 作物学报, 1996, 22(2):208-213.doi: 10.3321/j.issn:0496-3490.1996.02.015. doi: 10.3321/j.issn:0496-3490.1996.02.015
	Wang J H, Wang S A, Zhao D M, Ni J C. Study on regulation of development of maize kernels Ⅲ.the approach to chemical regulation under conditions of tissue culture[J]. Acta Agronomica Sinica, 1996, 22(2):208-213.
[13]	唐祈林, 荣廷昭. 玉米秃尖与内源激素的关系[J]. 核农学报, 2007, 21(4):366-368,400.doi: 10.3969/j.issn.1000-8551.2007.04.010. doi: 10.3969/j.issn.1000-8551.2007.04.010
	Tang Q L, Rong T Z. The relationship between endogenous hormone and barren ear tip of maize[J]. Journal of Nuclear Agricultural Sciences, 2007, 21(4):366-368,400.
[14]	Barnabás B, Jäger K, Fehér F. The effect of drought and heat stress on reproductive processes in cereals[J]. Plant,Cell & Environment, 2008, 31(1):11-38.doi: 10.1111/j.1365-3040.2007.01727.x. doi: 10.1111/j.1365-3040.2007.01727.x.
[15]	陈国清, 沈鑫, 蔡雪梅, 陆卫平, 陆大雷. 灌浆结实期高温胁迫对糯玉米子粒产量和叶片光合特性的影响[J]. 玉米科学, 2014, 22(2):104-108.doi: 10.13597/j.cnki.maize.science.2014.02.023. doi: 10.13597/j.cnki.maize.science.2014.02.023
	Chen G Q, Shen X, Cai X M, Lu W P, Lu D L. Effects of heat stress during grain filling on grain yield and leaf photosynthetic properties of waxy maize[J]. Journal of Maize Sciences, 2014, 22(2):104-108.
[16]	Cicchino M, Edreira J I R, Uribelarrea M, Otegui M E. Heat stress in field-grown maize:response of physiological determinants of grain yield[J]. Crop Science, 2010, 50(4):1438-1448.doi: 10.2135/cropsci2009.10.0574. doi: 10.2135/cropsci2009.10.0574 URL
[17]	Jones R J, Roessler J, Ouattar S. Thermal environment during endosperm cell division in maize:effects on number of endosperm cells and starch granules[J]. Crop Science, 1985, 25(5):830-834.doi: 10.2135/cropsci1985.0011183X002500050025x. doi: 10.2135/cropsci1985.0011183X002500050025x URL
[18]	Cheikh N, Jones R J. Heat stress effects on sink activity of developing maize kernels grown in vitro[J]. Physiologia Plantarum, 1995, 95(1):59-66.doi: 10.1111/j.1399-3054.1995.tb00808.x. doi: 10.1111/j.1399-3054.1995.tb00808.x. URL
[19]	Edreira J I R, Mayer L I, Otegui M E. Heat stress in temperate and tropical maize hybrids:Kernel growth,water relations and assimilate availability for grain filling[J]. Field Crops Research, 2014, 166:162-172.doi: 10.1016/j.fcr.2014.06.018. doi: 10.1016/j.fcr.2014.06.018 URL
[20]	李耕, 高辉远, 刘鹏, 杨吉顺, 董树亭, 张吉旺, 王敬锋. 氮素对玉米灌浆期叶片光合性能的影响[J]. 植物营养与肥料学报, 2010, 16(3):536-542.doi: 10.11674/zwyf.2010.0304. doi: 10.11674/zwyf.2010.0304
	Li G, Gao H Y, Liu P, Yang J S, Dong S T, Zhang J W, Wang J F. Effects of nitrogen fertilization on photosynthetic performance in maize leaf at grain filling stage[J]. Journal of Plant Nutrition and Fertilizers, 2010, 16(3):536-542.
[21]	刘志恒, 徐开未, 王科, 解晋, 王佳锐, 赵亚妮, 陈远学. 不同施氮量对玉米产量及各器官养分积累的影响[J]. 浙江大学学报(农业与生命科学版), 2018, 44(5):573-579.doi: 10.3785/j.issn.1008-9209.2016.10.114. doi: 10.3785/j.issn.1008-9209.2016.10.114
	Liu Z H, Xu K W, Wang K, Xie J, Wang J R, Zhao Y N, Chen Y X. Effect of different nitrogen applications on maize yield and nutrient accumulation in different organs[J]. Journal of Zhejiang University (Agriculture & Life Sciences), 2018, 44(5):573-579.
[22]	申丽霞, 魏亚萍, 王璞, 易镇邪, 张红芳, 兰林旺. 施氮对夏玉米顶部籽粒早期发育及产量的影响[J]. 作物学报, 2006, 32(11):1746-1751.doi: 10.3321/j.issn:0496-3490.2006.11.025.
	Shen L X, Wei Y P, Wang P, Yi Z X, Zhang H F, Lan L W. Effect of nitrogen supply on early kernel development and yield in summer maize(Zea mays L.)[J]. Acta Agronomica Sinica, 2006, 32(11):1746-1751.
[23]	郭文善, 方明奎, 王蔚华, 朱新开, 封超年, 彭永欣. 氮素对小麦茎鞘物质贮运和籽粒发育的调节效应[J]. 江苏农业研究, 2001, 22(4):1-4.doi: 10.16872/j.cnki.1671-4652.2001.04.001. doi: 10.16872/j.cnki.1671-4652.2001.04.001
	Guo W S, Fang M K, Wang W H, Zhu X K, Feng C N, Peng Y X. Effects of nitrogen on accumulation and translocation of temporary reserves in stem and leaf sheath and grain development in wheat[J]. Jiangsu Agricutural Research, 2001, 22(4):1-4.
[24]	赵霞, 穆心愿, 马智艳, 刘天学, 齐红志, 丁勇, 张凤启, 张君, 赵发欣, 邢健伟, 吴东洪, 唐保军. 不同玉米杂交种对花期高温、干旱复合胁迫的响应[J]. 河南农业科学, 2017, 46(8):32-37.doi: 10.15933/j.cnki.1004-3268.2017.08.006. doi: 10.15933/j.cnki.1004-3268.2017.08.006
	Zhao X, Mu X Y, Ma Z Y, Liu T X, Qi H Z, Ding Y, Zhang F Q, Zhang J, Zhao F X, Xing J W, Wu D H, Tang B J. Response of different maize hybrids to high temperature and drought stresses at flowering stage[J]. Journal of Henan Agricultural Sciences, 2017, 46(8):32-37.
[25]	潘秋红, 刘艳艳, 刘洪涛. 一种适用于酸性转化酶蛋白定量的酶联免疫吸附法[J]. 植物生理学通讯, 2005, 41(6):820-824.
	Pan Q H, Liu Y Y, Liu H T. A method for quantitative determination of acid invertase amount by enzyme-linked immunosorbent assay[J]. Plant Physiology Journal, 2005, 41(6):820-824.
[26]	宋松泉. 种子生物学研究指南[M]. 北京: 科学出版社, 2005.
	Song S Q. Guide to seed biology research[M]. Beijing: Science Press, 2005.
[27]	张风路, 王志敏, 赵明, 王树安, 赵久然, 郭景伦. 玉米子粒败育过程的早期特征及物质动态[J]. 玉米科学, 1999, 7(1):59-61.
	Zhang F L, Wang Z M, Zhao M, Wang S, Zhao J R, Guo J L. Developing characteristic and changes in material of maize kernel abortion[J]. Journal of Maize Sciences, 1999, 7(1):59-61.
[28]	山东省农业科学院. 中国玉米栽培学[M]. 上海: 上海科学技术出版社, 1986.
	Shandong Academy of Agricultural Sciences. Maize cultivation in northern China[M]. Shanghai: Shanghai Scientific & Technical Publishers, 1986.
[29]	赵丽晓, 张萍, 王若男, 王璞, 陶洪斌. 花后前期高温对玉米强弱势籽粒生长发育的影响[J]. 作物学报, 2014, 40(10):1839-1845.doi: 10.3724/SP.J.1006.2014.01839. doi: 10.3724/SP.J.1006.2014.01839
	Zhao L X, Zhang P, Wang R N, Wang P, Tao H B. Effect of high temperature after flowering on growth and development of superior and inferior maize kernels[J]. Acta Agronomica Sinica, 2014, 40(10):1839-1845. doi: 10.3724/SP.J.1006.2014.01839 URL
[30]	Reed A J, Singletary G W. Roles of carbohydrate supply and phytohormones in maize kernel abortion[J]. Plant Physiology, 1989, 91(3):986-992.doi: 10.1104/pp.91.3.986. doi: 10.1104/pp.91.3.986 pmid: 16667166
[31]	Yang J C, Zhang J H, Wang Z Q, Zhu Q S. Hormones in the grains in relation to sink strength and postanthesis development of spikelets in rice[J]. Plant Growth Regulation, 2003, 41(3):185-195.doi: 10.1023/B:GROW.0000007503.95391.38. doi: 10.1023/B:GROW.0000007503.95391.38 URL
[32]	崔丽娜, 董树亭. 不同氮肥处理下高温胁迫对夏玉米产量及叶片超微构造的影响[J]. 玉米科学, 2020, 28(1):92-97.doi: 10.13597/j.cnki.maize.science.20200114. doi: 10.13597/j.cnki.maize.science.20200114
	Cui L N, Dong S T. Effects of heat stress on grain yield and leaf anatomical structure in summer maize in different nitrogen fertilizer application[J]. Journal of Maize Sciences, 2020, 28(1):92-97.
[33]	徐云姬, 顾道健, 张博博, 张耗, 王志琴, 杨建昌. 玉米果穗不同部位籽粒激素含量及其与胚乳发育和籽粒灌浆的关系[J]. 作物学报, 2013, 39(8):1452-1461.doi: 10.3724/SP.J.1006.2013.01452. doi: 10.3724/SP.J.1006.2013.01452
	Xu Y J, Gu D J, Zhang B B, Zhang H, Wang Z Q, Yang J C. Hormone contents in kernels at different positions on an ear and their relationship with endosperm development and kernel filling in maize[J]. Acta Agronomica Sinica, 2013, 39(8):1452-1461. doi: 10.3724/SP.J.1006.2013.01452 URL
[34]	Engelen-Eigles G, Jones R J, Phillips R L. DNA endoreduplication in maize endosperm cells is reduced by high temperature during the mitotic phase[J]. Crop Science, 2001, 41(4):1114-1121.doi: 10.2135/cropsci2001.4141114x. doi: 10.2135/cropsci2001.4141114x URL
[35]	张萍, 陈冠英, 耿鹏, 高雅, 郑雷, 张沙沙, 王璞. 籽粒灌浆期高温对不同耐热型玉米品种强弱势粒发育的影响[J]. 中国农业科学, 2017, 50(11):2061-2070.doi: 10.3864/j.issn.0578-1752.2017.11.012. doi: 10.3864/j.issn.0578-1752.2017.11.012
	Zhang P, Chen G Y, Geng P, Gao Y, Zheng L, Zhang S S, Wang P. Effects of high temperature during grain filling period on superior and inferior kernels' development of different heat sensitive maize varieties[J]. Scientia Agricultura Sinica, 2017, 50(11):2061-2070.
[36]	Jones R J, Quattar S, Crookston R K. Thermal environment during endosperm cell division and grain filling in maize:effects on kernel growth and development in vitro[J]. Crop Science, 1984, 24(1):133-137.doi: 10.2135/cropsci1984.0011183X002400010031x. doi: 10.2135/cropsci1984.0011183X002400010031x URL
[37]	梁红伟, 高聚林, 王志刚, 于晓芳, 孙继颖, 胡树平, 王振, 余少波, 李雅剑. 基于控制授粉技术的玉米弱势粒发育与库特征的关系[J]. 作物学报, 2016, 42(6):917-923.doi: 10.3724/SP.J.1006.2016.00917. doi: 10.3724/SP.J.1006.2016.00917
	Liang H W, Gao J L, Wang Z G, Yu X F, Sun J Y, Hu S P, Wang Z, Yu S B, Li Y J. Relationship of inferior kernel setting with sink strength under controlling pollination[J]. Acta Agronomica Sinica, 2016, 42(6):917-923. doi: 10.3724/SP.J.1006.2016.00917 URL

品种 Variety	温度处理 Temperature treatment	氮素水平 Nitrogen level	穗粒数 Kernels per ear
ZD958	T	N90	463.67±5.84a	27.72±1.52ab	14.97±0.53a	1.22±0.07b	6.41±0.64c	15.44±0.11a	30.22±0.78a
		N180	366.51±11.55b	28.16±0.44ab	14.03±0.28ab	1.88±0.32a	21.86±2.84b	15.05±0.31ab	24.32±0.74b
		N270	300.22±29.76c	29.26±1.51a	12.92±0.60b	2.20±0.18a	30.90±5.66a	14.36±0.19b	20.89±1.91c
	CK	N90	476.49±19.20a	28.54±0.19a	15.31±0.35a	1.00±0.08b	3.55±0.21c	14.89±0.16ab	32.08±1.13a
		N180	480.07±6.76a	28.79±1.42a	15.47±0.79a	0.90±0.14b	3.46±0.51c	14.87±0.24ab	32.35±0.68a
		N270	489.34±9.84a	24.68±0.70b	14.89±0.29a	0.82±0.04b	4.33±0.72c	15.00±0.19ab	32.61±0.29a
	F值	T	63.62^**	1.33ns	9.08^*	39.83^**	233.05^**	0.03ns	70.41^**
		N	11.09^**	1.02ns	3.08ns	3.07ns	49.57^**	2.68ns	8.98^**
		T×N	15.00^**	3.85ns	1.34ns	6.36^*	44.31^**	4.18^*	11.25^**
XY335	T	N90	570.80±10.10ab	25.36±0.84a	18.21±0.69b	2.41±0.09b	8.53±0.25b	16.67±0.27a	34.20±0.70ab
		N180	326.00±9.52c	25.43±0.75a	14.60±0.06c	3.49±0.27a	34.08±2.59a	16.72±0.24a	19.50±0.63c
		N270	270.11±31.22c	27.48±3.20a	14.81±0.35c	4.09±0.20a	37.85±1.52a	15.55±0.22b	17.28±1.72c
	CK	N90	557.09±5.75ab	27.33±0.40a	18.46±0.27ab	2.02±0.08b	4.68±0.42b	15.73±0.47ab	35.54±0.82ab
		N180	604.83±26.85a	29.21±0.05a	19.68±0.40a	1.98±0.29b	2.58±0.62b	16.50±0.48ab	36.67±0.48a
		N270	526.43±21.23b	26.75±0.39a	18.10±0.43b	2.38±0.13b	4.00±0.41b	16.00±0.00ab	32.85±1.36b
	F值	T	114.64^**	2.13ns	72.92^**	57.08^**	115.87^**	0.80ns	175.92^**
		N	35.13^**	0.27ns	10.72^**	13.67^**	16.91^**	3.32ns	45.86^**
		T×N	33.52^**	1.31ns	17.56^**	6.66^*	20.21^**	2.27ns	34.48^**

品种 Variety	温度处理 Temperature treatment	氮素水平 Nitrogen level	穗粒数 Kernels per ear
ZD958	T	N90	463.67±5.84a	27.72±1.52ab	14.97±0.53a	1.22±0.07b	6.41±0.64c	15.44±0.11a	30.22±0.78a
		N180	366.51±11.55b	28.16±0.44ab	14.03±0.28ab	1.88±0.32a	21.86±2.84b	15.05±0.31ab	24.32±0.74b
		N270	300.22±29.76c	29.26±1.51a	12.92±0.60b	2.20±0.18a	30.90±5.66a	14.36±0.19b	20.89±1.91c
	CK	N90	476.49±19.20a	28.54±0.19a	15.31±0.35a	1.00±0.08b	3.55±0.21c	14.89±0.16ab	32.08±1.13a
		N180	480.07±6.76a	28.79±1.42a	15.47±0.79a	0.90±0.14b	3.46±0.51c	14.87±0.24ab	32.35±0.68a
		N270	489.34±9.84a	24.68±0.70b	14.89±0.29a	0.82±0.04b	4.33±0.72c	15.00±0.19ab	32.61±0.29a
	F值	T	63.62^**	1.33ns	9.08^*	39.83^**	233.05^**	0.03ns	70.41^**
		N	11.09^**	1.02ns	3.08ns	3.07ns	49.57^**	2.68ns	8.98^**
		T×N	15.00^**	3.85ns	1.34ns	6.36^*	44.31^**	4.18^*	11.25^**
XY335	T	N90	570.80±10.10ab	25.36±0.84a	18.21±0.69b	2.41±0.09b	8.53±0.25b	16.67±0.27a	34.20±0.70ab
		N180	326.00±9.52c	25.43±0.75a	14.60±0.06c	3.49±0.27a	34.08±2.59a	16.72±0.24a	19.50±0.63c
		N270	270.11±31.22c	27.48±3.20a	14.81±0.35c	4.09±0.20a	37.85±1.52a	15.55±0.22b	17.28±1.72c
	CK	N90	557.09±5.75ab	27.33±0.40a	18.46±0.27ab	2.02±0.08b	4.68±0.42b	15.73±0.47ab	35.54±0.82ab
		N180	604.83±26.85a	29.21±0.05a	19.68±0.40a	1.98±0.29b	2.58±0.62b	16.50±0.48ab	36.67±0.48a
		N270	526.43±21.23b	26.75±0.39a	18.10±0.43b	2.38±0.13b	4.00±0.41b	16.00±0.00ab	32.85±1.36b
	F值	T	114.64^**	2.13ns	72.92^**	57.08^**	115.87^**	0.80ns	175.92^**
		N	35.13^**	0.27ns	10.72^**	13.67^**	16.91^**	3.32ns	45.86^**
		T×N	33.52^**	1.31ns	17.56^**	6.66^*	20.21^**	2.27ns	34.48^**

品种 Variety	指标 Index	产量 Yield	穗粒数 Kernels per ear	百粒质量 100 grains weight	穗长 Ear length	秃尖长 Bald tip length	败育率 Abortion rate	穗行数 Rows per ear
ZD958	穗粒数	0.899^**
	百粒质量	0.050	-0.240
	穗长	0.876^**	0.840^**	0.139
	秃尖长	-0.773^**	-0.881^**	0.286	-0.574^*
	败育率	-0.911^**	-0.938^**	0.257	-0.761^**	0.865^**
	穗行数	0.364	0.514^*	-0.353	0.255	-0.417	-0.438
	行粒数	0.911^**	0.990^**	-0.185	0.871^**	-0.871^**	-0.933^**	0.389
XY335	穗粒数	0.944^**
	百粒质量	0.303	0.053
	穗长	0.950^**	0.959^**	0.169
	秃尖长	-0.887^**	-0.876^**	-0.201	-0.837^**
	败育率	-0.918^**	-0.956^**	-0.021	-0.918^**	0.921^**
	穗行数	0.152	0.254	-0.296	0.116	-0.021	-0.097
	行粒数	0.947^**	0.988^**	0.089	0.962^**	-0.909^**	-0.970^**	0.111

品种 Variety	指标 Index	产量 Yield	穗粒数 Kernels per ear	百粒质量 100 grains weight	穗长 Ear length	秃尖长 Bald tip length	败育率 Abortion rate	穗行数 Rows per ear
ZD958	穗粒数	0.899^**
	百粒质量	0.050	-0.240
	穗长	0.876^**	0.840^**	0.139
	秃尖长	-0.773^**	-0.881^**	0.286	-0.574^*
	败育率	-0.911^**	-0.938^**	0.257	-0.761^**	0.865^**
	穗行数	0.364	0.514^*	-0.353	0.255	-0.417	-0.438
	行粒数	0.911^**	0.990^**	-0.185	0.871^**	-0.871^**	-0.933^**	0.389
XY335	穗粒数	0.944^**
	百粒质量	0.303	0.053
	穗长	0.950^**	0.959^**	0.169
	秃尖长	-0.887^**	-0.876^**	-0.201	-0.837^**
	败育率	-0.918^**	-0.956^**	-0.021	-0.918^**	0.921^**
	穗行数	0.152	0.254	-0.296	0.116	-0.021	-0.097
	行粒数	0.947^**	0.988^**	0.089	0.962^**	-0.909^**	-0.970^**	0.111

部位 Part	温度处理 Temperature treatment	氮素水平 Nitrogen level	ZD958				XY335
部位 Part	温度处理 Temperature treatment	氮素水平 Nitrogen level	3 d	6 d	9 d	12 d	3 d	6 d	9 d	12 d
上部	T	N90	1.57±0.03b	1.42±0.05d	1.60±0.04c	2.33±0.04bc	1.93±0.04b	1.97±0.01b	2.27±0.08b	2.63±0.05c
Upper		N180	1.79±0.05a	1.40±0.02d	1.71±0.01bc	2.37±0.05ab	1.65±0.01c	1.85±0.06bc	2.18±0.08b	2.55±0.02cd
		N270	1.55±0.04b	1.56±0.03bc	1.83±0.04ab	2.52±0.04a	1.70±0.02c	1.75±0.03c	2.22±0.04b	2.96±0.04b
	CK	N90	1.40±0.03c	1.73±0.02a	1.77±0.07b	2.17±0.08c	1.94±0.03b	1.96±0.04b	2.22±0.07b	2.49±0.03d
		N180	1.37±0.00c	1.47±0.03cd	1.90±0.01a	2.26±0.03bc	2.09±0.02a	2.26±0.03a	2.60±0.04a	3.03±0.04b
		N270	1.24±0.03d	1.62±0.02b	1.91±0.04a	2.36±0.05ab	1.94±0.05b	2.25±0.05a	2.65±0.06a	3.22±0.05a
	F值	T	137.95^**	33.83^**	21.14^**	10.82^**	87.14^**	83.78^**	26.71^**	36.13^**
		N	17.59^**	15.34^**	12.33^**	6.93^**	6.39^*	2.77ns	4.86^*	86.22^**
		T×N	7.84^**	10.31^**	1.04ns	0.20ns	25.69^**	23.29^**	9.70^**	29.12^**
中部	T	N90	1.34±0.02c	1.09±0.05d	1.24±0.02e	1.60±0.04c	1.90±0.05a	2.12±0.04a	2.25±0.03bc	2.53±0.07cd
Middle		N180	1.40±0.03c	1.23±0.02c	1.72±0.02b	2.13±0.03b	1.87±0.03a	2.15±0.06a	2.17±0.04cd	2.39±0.05de
		N270	1.56±0.06b	1.57±0.04a	2.23±0.04a	2.66±0.06a	1.51±0.02c	2.03±0.04a	2.05±0.05d	2.37±0.04e
	CK	N90	1.68±0.02a	1.38±0.05b	1.49±0.01c	2.08±0.04b	1.69±0.01b	1.32±0.04c	2.14±0.06cd	2.66±0.01bc
		N180	1.59±0.01ab	1.35±0.03bc	1.38±0.01d	2.10±0.02b	1.71±0.03b	1.47±0.04c	2.33±0.04b	2.75±0.03b
		N270	1.50±0.02b	1.32±0.03bc	1.26±0.03e	2.11±0.04b	1.72±0.06b	1.83±0.06b	2.69±0.04a	3.08±0.05a
	F值	T	41.79^**	3.16ns	344.30^**	0.99ns	2.87ns	198.35^**	40.51^**	114.31^**
		N	0.68ns	17.51^**	131.79^**	84.74^**	15.72^**	9.22^**	8.42^**	6.52^*
		T×N	23.11^**	26.79^**	343.47^**	75.57^**	19.76^**	21.25^**	36.45^**	19.45^**
下部	T	N90	1.21±0.06cd	1.11±0.01d	1.04±0.01d	2.13±0.00b	1.38±0.04c	1.85±0.03b	2.05±0.02c	2.24±0.07d
Lower		N180	1.56±0.05b	1.96±0.02a	2.03±0.04b	2.67±0.03a	1.60±0.04ab	1.66±0.03c	2.10±0.04bc	2.35±0.02cd
		N270	1.76±0.03a	1.85±0.03b	2.35±0.04a	2.03±0.04c	1.66±0.00a	1.66±0.02c	2.18±0.03ab	2.50±0.08bc
	CK	N90	0.64±0.02e	0.67±0.02e	1.54±0.05c	1.64±0.04d	1.55±0.01b	1.88±0.02b	2.06±0.05c	2.68±0.09b
		N180	1.11±0.04d	1.07±0.03d	1.63±0.03c	1.56±0.03de	1.61±0.02ab	1.84±0.04b	2.15±0.03abc	2.69±0.08b
		N270	1.26±0.01c	1.35±0.04c	1.54±0.04c	1.50±0.01e	1.67±0.04a	2.15±0.03a	2.24±0.03a	2.99±0.09a
	F值	T	251.90^**	885.24^**	63.94^**	830.03^**	8.18^*	88.13^**	1.63ns	46.77^**
		N	120.81^**	487.61^**	190.54^**	68.79^**	26.76^**	14.44^**	9.79^**	7.81^**
		T×N	1.38ns	48.31^**	172.13^**	66.40^**	4.97^*	30.09^**	0.28ns	0.50ns

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