Effects of Different Concentrations of Paclobutrazol in Seedling Stage on Seedling Quality, Tillering Dynamics and Grain Yield of japonica Rice During Late Cropping Season in Southern China

doi:10.16819/j.1001-7216.2020.9064

Chinese Journal OF Rice Science ›› 2020, Vol. 34 ›› Issue (2): 150-158.DOI: 10.16819/j.1001-7216.2020.9064

• Research Papers • Previous Articles Next Articles

Effects of Different Concentrations of Paclobutrazol in Seedling Stage on Seedling Quality, Tillering Dynamics and Grain Yield of japonica Rice During Late Cropping Season in Southern China

Chen CHENG^1,², Kai LEI^1,³, Huihuang CHENG^1,⁴, Shengliang WANG^1,⁵, Bo ZHU², Zhanjun LU², Bingke GAO³, Binqiang WANG³, Qinghua SHI¹, Yongjun ZENG^1,^*

¹Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education/Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding /Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China/ Collaborative Innovation Center for the Modernization Production of Double Cropping Rice, Jiangxi Agricultural University, Nanchang 330045 China
²Life and Environmental Sciences College, Gannan Normal University/National Navel Orange Engineering Research Center, Ganzhou 341000, China
³Jiujiang Academy of Agricultural Sciences, Jiujiang 332101, China
⁴Cotton Research Institute of Jiangxi Province, Jiujiang 332105, China
⁵Bureau of Agriculture and Rural Affairs of Gaoan City of Jiangxi Province, Yichun 330800, China

Received:2019-06-06 Revised:2019-08-04 Online:2020-03-10 Published:2020-03-10
Contact: Yongjun ZENG
About author:
^#These authors contributed equally to this work

苗期不同浓度多效唑对南方晚粳稻秧苗素质、茎蘖动态及产量的影响

成臣^1,², 雷凯^1,³, 程慧煌^1,⁴, 王盛亮^1,⁵, 朱博², 卢占军², 高冰可³, 王斌强³, 石庆华¹, 曾勇军^1,^*

¹作物生理生态与遗传育种教育部重点实验室/江西省作物生理生态与遗传育种重点实验室/江西农业大学双季稻现代化生产协同创新中心/南方粮油作物协同创新中心,南昌330045
²赣南师范大学生命与环境科学学院/国家脐橙工程技术研究中心, 江西赣州 341000
³九江农业科学院,江西九江332101
⁴江西省棉花研究所,江西九江332105
⁵江西省高安市农业农村局,江西宜春330800

通讯作者: 曾勇军
作者简介:
^#共同第一作者
基金资助:
江西省水稻产业技术体系专项(JXARS-02-03);江西现代农业科研协同创新专项(JXXTCX2015001-011);中青年科技创新领军人才专项[赣科计字(2018)175号];江西省青年科学家培养对象计划资助项目(20153BCB23015)

Abstract

Abstract:

【Objective】Sufficient panicle number holds the key to higher yield of late japonica rice in southern China. Our goal is to achieve sufficient panicle number by paclobutrazol treatment so as to gain higher yield. 【Method】The split plot was designed with variety as main area and paclobutrazol concentrations as sub-area. Zhendao 11 and Yongyou 2640 were used as late japonica rice materials and H you 518 as control. Five concentrations of paclobutrazol (calculated by active component; A₁, 0 mg/L, A₂, 84 mg/L, A₃, 120 mg/L, A₄, 156 mg/L and A₅, 192 mg/L) were used in the present field experiment. We investigated the effects of different concentrations of paclobutrazol on seedling quality, tillering dynamics and yield of late japonica rice in southern China between 2014 and 2015.【Result】The seedling height gradually decreased during the two years. The leaf age of seedling and SPAD of H you 518 and Yongyou 2640 gradually increased, while those of Zhendao 11 increased first and then decreased with increasing concentrations of paclobutrazol. The seedling root length, root number, tiller number, productive panicle number, seed setting rate, grain plumpness and yield of the three cultivars increased first and then decreased along with the rising concentrations of paclobutrazol. These indexes of H you 518 and Yongyou 2640 peaked at 156 mg/L of paclobutrazol, and Zhendao 11 at 120 mg/L of paclobutrazol. 【Conclusion】Rice seedling quality, panicle number and yield were significantly enhanced by applying suitable concentrations of paclobutrazol. The yield of H you 518 and Yongyou 2640 peaked at 156 mg/L of paclobutrazol, while Zhendao 11 reached the highest yield at 120 mg/L of paclobutrazol.

Key words: paclobutrazol, late japonica rice, seedling quality, tiller dynamics, yield

摘要：

【目的】通过喷施多效唑来达到高产所需的足穗,解决南方晚粳稻有效穗数不足的问题。【方法】设计以品种为主区、多效唑浓度为副区的裂区试验。以镇稻11和甬优2640为晚粳稻材料,以晚籼稻H优518为对照;多效唑浓度(以有效成分计)分别设A₁(0 mg/L)、A₂(84 mg/L)、A₃(120 mg/L)、A₄(156 mg/L)和A₅(192 mg/L)共5种施用水平。2014—2015年评估了不同浓度多效唑对南方晚粳稻秧苗素质、茎蘖动态及产量的影响。【结果】随多效唑浓度增加,2年各品种秧苗苗高均逐渐降低;H优518及甬优2640秧苗叶龄及SPAD值逐渐增加,而镇稻11却先增后降;三品种秧苗单株根长、根数、分蘖数以及有效穗数、结实率、籽粒充实度和产量均随苗期喷施多效唑浓度的增加呈现先增后降趋势,其中H优518及甬优2640两品种的上述指标均在A₄时最高,镇稻11在A₃表现最佳。【结论】喷施适宜浓度多效唑可显著提高水稻秧苗素质、有效穗数及产量。其中,H优518及甬优2640以A₄(156 mg/L)时产量表现最好,而镇稻11却在A₃(120 mg/L)时产量达到最高。

关键词: 多效唑, 晚粳稻, 秧苗素质, 茎蘖动态, 产量

CLC Number:

Chen CHENG, Kai LEI, Huihuang CHENG, Shengliang WANG, Bo ZHU, Zhanjun LU, Bingke GAO, Binqiang WANG, Qinghua SHI, Yongjun ZENG. Effects of Different Concentrations of Paclobutrazol in Seedling Stage on Seedling Quality, Tillering Dynamics and Grain Yield of japonica Rice During Late Cropping Season in Southern China[J]. Chinese Journal OF Rice Science, 2020, 34(2): 150-158.

成臣, 雷凯, 程慧煌, 王盛亮, 朱博, 卢占军, 高冰可, 王斌强, 石庆华, 曾勇军. 苗期不同浓度多效唑对南方晚粳稻秧苗素质、茎蘖动态及产量的影响[J]. 中国水稻科学, 2020, 34(2): 150-158.

Figures/Tables 6

References 31

[1]	陈波, 周年兵, 郭保卫, 黄大山, 陈忠平, 花劲, 霍中洋, 张洪程. 南方稻区“籼改粳”研究进展[J]. 扬州大学学报: 农业与生命科学版, 2017, 38(1): 67-72.
	Chen B, Zhou N B, Guo B W, Huang D S, Chen Z P, Huo Z Y, Zhang H C.Progress of “indica rice to japonica rice” in southern China[J]. Journal of Yangzhou University: Agriculture and Life Science, 2017, 38(1): 67-72. (in Chinese with English abstract)
[2]	张洪程, 张军, 龚金龙, 常勇, 李敏, 高辉, 戴其根, 霍中洋, 许轲, 魏海燕. “籼改粳”的生产优势及其形成机理[J]. 中国农业科学, 2013, 46(4): 686-704.
	Zhang H C, Zhang J, Gong J L, Chang Y, Li M, Gao H, Dai Q G, Huo Z Y, Xu K, Wei H Y.The productive advantages and formation mechanisms of “indica rice to japonica rice”[J]. Scientia Agricultura Sinica, 2013, 46(4): 686-704. (in Chinese with English abstract)
[3]	张军. 双季晚粳高产形成特征及关键栽培技术研究[D]. 扬州: 扬州大学, 2013.
	Zhang J.Study on high meld formation and cultivation strategies of late japonica rice in double-cropping rice area[D]. Yangzhou: Yangzhou University, 2013. (in Chinese with English abstract)
[4]	成臣, 曾勇军, 王祺, 谭雪明, 商庆银, 曾研华, 石庆华, 金霄. 氮肥运筹对南方双季晚粳稻产量及品质的影响[J]. 植物营养与肥料学报, 2018, 24(5): 1386-1395.
	Cheng C, Zeng Y Y, Wang Q, Tan X M, Shang Q Y, Zeng Y H, Shi Q H, Jin X.Effects of nitrogen application regime on japonica rice yield and quality of the late rice in the double rice system in southern China[J]. Journal of Plant Nutrition and Fertilizer Science, 2018, 24(5): 1386-1395. (in Chinese with English abstract)
[5]	成臣, 曾勇军, 吕伟生, 谭雪明, 商庆银, 曾研华, 石庆华. 南方稻区优质晚粳稻产量和品质调优的播期效应[J]. 核农学报, 2018, 32(10): 2019-2030.
	Cheng C, Zeng Y J, Lv W S, Tan X M, Shang Q Y, Zeng Y H, Shi Q H.Effect of sowing date on rice yield and quality of high-quality japonica rice during the late-rice cropping seasons in southern China[J]. Journal of Nuclear Agricultural Science, 2018, 32(10): 2019-2030. (in Chinese with English abstract)
[6]	Cheng C, Ali A, Shi Q H, Zeng Y H, Tan X M, Shang Q Y, Huang S, Xie X B, Zeng Y J.Response of chalkiness in high-quality rice (Oryza sativa L.) to temperature across different ecological regions[J]. Journal of Cereal Science, 2019, 87: 39-45.
[7]	黄大山, 曹开蔚, 程飞虎, 张洪程, 张军, 张强. 一季粳稻作双季晚稻高产栽培技术[J]. 中国稻米, 2010, 16(4): 40-42.
	Huang D S, Cao K W, Cheng F H, Zhang H C, Zhang J, Zhang Q.High yield cultivation techniques of one season japonica rice for two-season late rice[J]. China Rice, 2010, 16(4): 40-42. (in Chinese with English abstract)
[8]	陈波. 江西双季晚稻不同类型品种综合生产力及其形成特征[D]. 扬州: 扬州大学, 2017.
	Chen B.Studies on comprehensive productivity of different types of double-cropping late rice and characteristics analysis in Jiangxi Province[D]. Yangzhou: Yangzhou University, 2017. (in Chinese with English abstract)
[9]	董啸波. 密度对南方双季晚粳稻产量和群体质量及品质的影响[D]. 扬州: 扬州大学, 2013.
	Dong X B.The effects of density levels on southern season double late japonica rice yield and quality[D]. Yanghou: Yangzhou University, 2013. (in Chinese with English abstract)
[10]	陈善冲, 曾晓春, 刘传飞. 多效唑促进水稻秧苗分蘖作用机理的研究[J]. 江西农业学报, 1993, 5(4): 11-14.
	Chen S C, Zeng X C, Liu C F.Study on the mechanism of multi-effect promoting tillering of rice seedlings[J]. Acta Agriculturae Jiangxi, 1993, 5(4): 11-14. (in Chinese with English abstract)
[11]	解振兴, 张居念, 林祁, 刘锋, 张初长, 卓芳梅, 姜照伟, 卓传营. 植物生长调节剂对再生稻头季抗倒伏能力和两季产量的影响[J]. 中国水稻科学, 2019, 33(2): 158-166.
	Xie Z X, Zhang J N, Lin Q, Liu F, Zhang C Z, Zhuo F M, Jiang Z W, Zhuo C Y.Effect of plant growth regulators on rice lodging resistance and grain production of main-crop and rationing rice[J]. Chinese Journal of Rice Science, 2019, 33(2): 158-166. (in Chinese with English abstract)
[12]	Sinniah U R, Wahyuni S, Syahputra B S A, Gantait S. A potential retardant for lodging resistance in direct seeded rice (Oryza sativa L.)[J]. Canadian Journal of Plant Science, 2012, 92(1): 13-18.
[13]	Wu C W, Sun J Q, Zhang A P, Liu W P.Dissipation and Enantioselective degradation of plant growth retardants paclobutrazol and uniconazole in open field, greenhouse, and laboratory soils[J]. Environment Science Technology, 2012, 47(2): 843-849.
[14]	朱庆森, 王志琴, 张祖建, 惠大丰. 水稻籽粒充实程度的指标研究[J]. 江苏农学院学报, 1995, 16(2): 1-4.
	Zhu Q S, Wang Z Q, Zhang Z J, Hui D F.Study on indicators of grain-filling of rice[J]. Journal of Jiangsu Agricultural College, 1995, 16(2): 1-4. (in Chinese with English abstract)
[15]	游鸯, 汪天. 多效唑作用及应用研究进展(综述)[J]. 亚热带植物科学, 2013, 42(4): 361-366.
	You Y, Wang T.The research progress of the function and applications of PP333[J]. Tropical Plant Science, 2013, 42(4): 361-366. (in Chinese with English abstract)
[16]	Darussalam D K.Effect of paclobutrazol and cytokinin on growth and source-sink relationship during grain filling of black rice(Oryza sativa L. “Cempo Ireng”)[J]. Indian Journal of Plant Physiology, 2018, 23(3): 507-515.
[17]	Xiang J, Wu H, Zhang Y P, Zhang Y K, Wang Y F, Li Z Y, Lin H Y, Chen H Z, Zhang J, Zhu D F.Transcriptomic analysis of gibberellin- and paclobutrazol-treated rice seedlings under submergence[J]. International Journal of Molecular Sciences, 2017, 18(10): 2225.
[18]	翟孝勋. 多效唑在水稻群体质量控制中的作用[D]. 南京: 南京农业大学, 2005.
	Zhai X X.The effect of Paclobutrazol in quality on controlling population quality on rice[D]. Nanjing: Nanjing Agricultural University, 2005. (in Chinese with English abstract)
[19]	刘希财, 李余先. 喷施多效唑对水稻秧苗素质及产量的影响[J]. 吉林农业科技学院学报, 2005, 14(4):1-2.
	Liu X C, Li Y X.The effect of spraying PP333 on rice seedlings quality and output[J]. Journal of Jilin Agricultural Science and Technology College, 2005, 14(4): 1-2. (in Chinese with English abstract)
[20]	闫凯莉, 韩云, 谭廷钢, 唐良德, 吴建辉. 15%多效唑可湿性粉剂对水稻生长、产量及品质的影响[J]. 热带农业科学, 2016, 36(2): 73-76.
	Yan K L, Han Y, Tan T G, Tang L D, Wu J H.Effects of 15% paclobutrazol WP on growth, yield and quality in rice[J]. Chinese Journal of Tropical Agriculture, 2016, 36(2): 73-76. (in Chinese with English abstract)
[21]	王熹, 姚福德, 高成伟, 陶龙兴. 多效唑对水稻的生物效应及其应用[J]. 中国水稻科学, 1988, 2(1): 29-35.
	Wang X, Yao D F, Gao C W, Tao L X.Biological responses of MET on rice and field applications[J]. Chinese Journal Rice Science, 1988, 2(1): 29-35. (in Chinese with English abstract)
[22]	张结刚, 张美良, 潘晓华. 不同生长调节物质对机插早稻秧苗生育特性及产量的影响[J]. 中国农学通报, 2015, 31(15): 151-155.
	Zhang J G, Zhang M L, Pan X H.Effects of different growth regulators on growth characteristics of machine-transplanted early hybrid rice seedlings and yields[J]. Chinese Agricultural Science Bulletin, 2015, 31(15): 151-155. (in Chinese with English abstract)
[23]	张建华, 费震江, 董华林, 徐宏书, 周鹏, 武晓智, 周文华. 多效唑对杂交中稻培两优3076的效果[J]. 湖北农业科学, 2008, 47(12): 1400-1402.
	Zhang J H, Fei Z J, Dong H L, Xu H S, Zhou P, Wu X Z, Zhou W H.Effect of paclobutrazol on hybrid medium-season rice Pei-liang-you 3076[J]. Hubei Agricultural Science, 2008, 47(12): 1400-1402. (in Chinese with English abstract)
[24]	龚超热. 多效唑不同用量对优质稻抗倒性及产量性状的影响[J]. 湖南农业科学, 2010(13): 44-46.
	Gong C R.Effects of MET with different applying amounts on lodging resistance and yield character of quality rice[J]. Hunan Agricultural Science, 2010(13): 44-46. (in Chinese with English abstract)
[25]	王熹, 陶龙兴, 黄效林, 俞美玉. 赤霉酸和多效唑对水稻“粒间顶端优势”的调节及对产量的影响[J]. 中国水稻科学, 1999, 12(4): 217-222.
	Wang X, Tao L X, Huang X L, Yu M Y.Regulating the inter-grain apical dominance of rice by GA3 and PP333[J]. Chinese Journal Rice Science, 1999, 12(4): 217-222. (in Chinese with English abstract)
[26]	姚雄, 任万军, 蓝平, 卢庭启, 杨文钰. 氮肥与多效唑配合对稻麦两熟区机插水稻秧苗生长的影响[J]. 植物营养与肥料学报, 2009, 15(6): 1364-1371.
	Yao X, Ren W J, Lan P, Lu T Q, Yang W Y.Effects of nitrogenous fertilizer and PP333 on the seedling growth of mechanical transplanting rice in wheat-rice double cropping area[J]. Journal of Plant Nutrition and Fertilizer Science, 2009, 15(6): 1364-1371. (in Chinese with English abstract)
[27]	钟蕾, 黄文赟. 新型植物生长调节剂多效唑钾盐在双季超级杂交稻上的应用效果[J]. 生物灾害科学, 2014, 37(3): 220-222.
	Zhong L, Huang W Y.Application Effects of new-type plant growth regulators paclobutrazol potassium on double-season super hybrid rice[J]. Biological Disaster Science, 2014, 37(3): 220-222. (in Chinese with English abstract)
[28]	杨雪芹, 陈婷婷, 赵霞, 张彩霞, 杨永杰, 符冠富, 陶龙兴. 赤霉素与多效唑协同影响超级稻甬优12产量形成的作用途径分析[J]. 中国水稻科学, 2016, 30(1): 53-61.
	Yang X Q, Chen T T, Zhao X, Zhang C X, Yang Y J, Fu G F, Tao L X.Mechanism behind the effects of GA3 and PP333 on grain yield formation of super rice Yongyou 12[J]. Chinese Journal Rice Science, 2016, 30(1): 53-61. (in Chinese with English abstract)
[29]	龙瑞平, 李贵勇, 夏琼梅, 朱海平, 邓安凤, 侯跃, 朱丽芬, 李香连, 赵丽娟, 杨从党. 不同秧龄与多效唑喷施对机插水稻生长特性的影响[J]. 江苏农业科学, 2017, 45(19): 158-160.
	Long R P, Li G Y, Xia Q M, Zhu H P, Deng A F, Hou Y, Zhu L F, Li X L, Zhao L J, Yang C D.Effects of different seedling ages and PP333 spraying on the growth characteristics of machine-inserted rice[J]. Jiangsu Agricultural Science, 2017, 45(19): 158-160. (in Chinese with English abstract)
[30]	姜龙, 曲金玲, 孙国宏, 白艳凤, 孟祥海, 姜宝杰, 孙远卓, 董韩骁骐. 矮壮素、烯效唑和多效唑对水稻倒伏及产量的影响[J]. 中国林副特产, 2018, 34(2): 10-13.
	Jiang L, Qu J L, Sun G H, Bai Y F, Meng X H, Jian B J, Sun Y Z, Dong H X Q. Effects of pyractin, alkenazole and polyeffector on lodging and yield of rice[J]. Forest By-Product and Specialty in China, 2018, 34(2): 10-13. (in Chinese with English abstract)
[31]	陈觉敏. 多效唑对早稻秧苗矮化、促蘖和防超龄效应的研究[J]. 浙江农业科学, 1989, 31(1): 12-15.
	Chen J M.Study on the effects of paclobutrazol on early rice seedling dwarfing, tillering and overage control[J]. Zhejiang Agricultural Science, 1989, 31(1):12-15. (in Chinese with English abstract)

变异来源 Source of variation	自由度df	叶龄 Leaf age	苗高Seedling height	单株根长 Root length per plant/cm	单株根数 Root number per plant	单株分蘖数 Tiller number per plant	SPAD值 SPAD value	F_0.05	F_0.01
年份Year(Y)	1	35.30^**	24.61^**	2.39 ns	1.18 ns	60.08^**	14.45^**	3.87	6.72
品种Variety(V)	2	118.34^**	645.51^**	218.09^**	37.73^**	67.18^**	146.33^**	3.03	4.68
处理Treatment(T)	4	18.62^**	27.26^**	31.60^**	31.35^**	16.69^**	120.33^**	2.40	3.38
Y×V	2	2.17 ns	0.85 ns	0.41 ns	1.59 ns	0.87 ns	17.30^**	3.03	4.68
Y×T	4	0.51 ns	0.33 ns	0.34 ns	0.28 ns	0.37 ns	1.48 ns	2.40	3.38
V×T	8	1.75 ns	0.35 ns	3.14^**	3.66^**	1.53 ns	15.56^**	1.97	2.57
Y×V×T	8	0.22 ns	0.02 ns	0.15 ns	0.13 ns	0.20 ns	0.31 ns	1.97	2.57

变异来源 Source of variation	自由度df	叶龄 Leaf age	苗高Seedling height	单株根长 Root length per plant/cm	单株根数 Root number per plant	单株分蘖数 Tiller number per plant	SPAD值 SPAD value	F_0.05	F_0.01
年份Year(Y)	1	35.30^**	24.61^**	2.39 ns	1.18 ns	60.08^**	14.45^**	3.87	6.72
品种Variety(V)	2	118.34^**	645.51^**	218.09^**	37.73^**	67.18^**	146.33^**	3.03	4.68
处理Treatment(T)	4	18.62^**	27.26^**	31.60^**	31.35^**	16.69^**	120.33^**	2.40	3.38
Y×V	2	2.17 ns	0.85 ns	0.41 ns	1.59 ns	0.87 ns	17.30^**	3.03	4.68
Y×T	4	0.51 ns	0.33 ns	0.34 ns	0.28 ns	0.37 ns	1.48 ns	2.40	3.38
V×T	8	1.75 ns	0.35 ns	3.14^**	3.66^**	1.53 ns	15.56^**	1.97	2.57
Y×V×T	8	0.22 ns	0.02 ns	0.15 ns	0.13 ns	0.20 ns	0.31 ns	1.97	2.57

年份 Year	品种 Variety	处理 Treatment	叶龄 Leaf age	苗高 Seedling height/cm	根长 Root length/cm	单株根数 Root number per plant	单株分蘖数 Tiller number per plant	SPAD值 SPAD value
2014	H优518 H you 518	A₁	6.4 b	39.9 a	12.3 b	19.7 c	0.9 c	35.6 d
		A₂	6.6 b	38.8 ab	12.7 ab	22.2 bc	1.0 bc	37.5 c
		A₃	6.7 ab	38.2 ab	12.9 ab	22.7 bc	1.2 abc	39.0 b
		A₄	6.8 a	37.3 b	13.3 a	24.9 a	1.5 a	40.2 a
		A₅	6.9 a	37.1 b	12.8 ab	24.3 ab	1.3 ab	41.1 a
	镇稻11 Zhendao 11	A₁	5.8 b	29.9 a	8.1 c	17.0 b	0.2 c	37.4 d
		A₂	6.0 ab	27.7 b	8.7 bc	17.7 b	0.3 bc	38.6 c
		A₃	6.2 a	26.8 bc	10.1 a	20.9 a	0.9 a	41.1 a
		A₄	6.1 a	26.3 c	9.7 ab	19.8 ab	0.8 ab	39.8 b
		A₅	6.0 a	26.1 c	9.3 ab	18.8 ab	0.6 abc	39.3 bc
	甬优2640 Yongyou 2640	A₁	6.0 b	33.9 a	8.0 c	18.1 c	0.8 b	38.6 d
		A₂	6.1 ab	32.5 ab	9.4 bc	21.5 bc	0.9 ab	40.7 c
		A₃	6.2 ab	31.8 ab	10.5 ab	24.1 ab	1.1 ab	41.8 b
		A₄	6.2 a	30.9 b	11.4 a	27.3 a	1.3 a	43.3 a
		A₅	6.3 a	30.6 b	10.7 a	26.7 a	1.2 ab	44.2 a
2015	H优518 H you 518	A₁	6.5 b	42.0 a	11.8 c	18.7 c	1.3 b	36.2 d
		A₂	6.7 b	40.6 ab	12.5 bc	21.5 b	1.5 ab	38.4 c
		A₃	6.8 ab	40.0 bc	13.3 ab	23.3 ab	1.8 ab	39.5 b
		A₄	7.0 a	39.1 bc	13.5 a	25.6 a	2.0 a	40.9 a
		A₅	7.0 a	38.6 c	13.1 ab	23.8 ab	1.8 a	41.4 a
	镇稻11 Zhendao 11	A₁	5.9 c	31.4 a	8.3 c	18.0 c	0.5 c	36.8 c
		A₂	6.1 b	28.9 b	8.9 bc	19.4 bc	0.8 bc	38.3 b
		A₃	6.5 a	27.9 c	10.4 a	22.4 a	1.3 a	39.5 a
		A₄	6.3 ab	27.2 cd	10.2 a	21.6 ab	0.9 b	38.4 b
		A₅	6.3 ab	26.6 d	9.5 ab	19.8 bc	0.8 bc	37.6 bc
	甬优2640 Yongyou 2640	A₁	6.2 c	35.5 a	8.3 b	18.7 b	1.1 c	38.1 c
		A₂	6.3 bc	33.8 ab	9.5 b	20.5 b	1.3 bc	39.8 b
		A₃	6.5 ab	32.9 bc	10.9 a	24.7 a	1.6 ab	40.5 b
		A₄	6.6 a	31.6 bc	11.7 a	27.6 a	1.8 a	42.3 a
		A₅	6.7 a	31.1 c	11.3 a	26.3 a	1.7 ab	42.9 a

年份 Year	品种 Variety	处理 Treatment	叶龄 Leaf age	苗高 Seedling height/cm	根长 Root length/cm	单株根数 Root number per plant	单株分蘖数 Tiller number per plant	SPAD值 SPAD value
2014	H优518 H you 518	A₁	6.4 b	39.9 a	12.3 b	19.7 c	0.9 c	35.6 d
		A₂	6.6 b	38.8 ab	12.7 ab	22.2 bc	1.0 bc	37.5 c
		A₃	6.7 ab	38.2 ab	12.9 ab	22.7 bc	1.2 abc	39.0 b
		A₄	6.8 a	37.3 b	13.3 a	24.9 a	1.5 a	40.2 a
		A₅	6.9 a	37.1 b	12.8 ab	24.3 ab	1.3 ab	41.1 a
	镇稻11 Zhendao 11	A₁	5.8 b	29.9 a	8.1 c	17.0 b	0.2 c	37.4 d
		A₂	6.0 ab	27.7 b	8.7 bc	17.7 b	0.3 bc	38.6 c
		A₃	6.2 a	26.8 bc	10.1 a	20.9 a	0.9 a	41.1 a
		A₄	6.1 a	26.3 c	9.7 ab	19.8 ab	0.8 ab	39.8 b
		A₅	6.0 a	26.1 c	9.3 ab	18.8 ab	0.6 abc	39.3 bc
	甬优2640 Yongyou 2640	A₁	6.0 b	33.9 a	8.0 c	18.1 c	0.8 b	38.6 d
		A₂	6.1 ab	32.5 ab	9.4 bc	21.5 bc	0.9 ab	40.7 c
		A₃	6.2 ab	31.8 ab	10.5 ab	24.1 ab	1.1 ab	41.8 b
		A₄	6.2 a	30.9 b	11.4 a	27.3 a	1.3 a	43.3 a
		A₅	6.3 a	30.6 b	10.7 a	26.7 a	1.2 ab	44.2 a
2015	H优518 H you 518	A₁	6.5 b	42.0 a	11.8 c	18.7 c	1.3 b	36.2 d
		A₂	6.7 b	40.6 ab	12.5 bc	21.5 b	1.5 ab	38.4 c
		A₃	6.8 ab	40.0 bc	13.3 ab	23.3 ab	1.8 ab	39.5 b
		A₄	7.0 a	39.1 bc	13.5 a	25.6 a	2.0 a	40.9 a
		A₅	7.0 a	38.6 c	13.1 ab	23.8 ab	1.8 a	41.4 a
	镇稻11 Zhendao 11	A₁	5.9 c	31.4 a	8.3 c	18.0 c	0.5 c	36.8 c
		A₂	6.1 b	28.9 b	8.9 bc	19.4 bc	0.8 bc	38.3 b
		A₃	6.5 a	27.9 c	10.4 a	22.4 a	1.3 a	39.5 a
		A₄	6.3 ab	27.2 cd	10.2 a	21.6 ab	0.9 b	38.4 b
		A₅	6.3 ab	26.6 d	9.5 ab	19.8 bc	0.8 bc	37.6 bc
	甬优2640 Yongyou 2640	A₁	6.2 c	35.5 a	8.3 b	18.7 b	1.1 c	38.1 c
		A₂	6.3 bc	33.8 ab	9.5 b	20.5 b	1.3 bc	39.8 b
		A₃	6.5 ab	32.9 bc	10.9 a	24.7 a	1.6 ab	40.5 b
		A₄	6.6 a	31.6 bc	11.7 a	27.6 a	1.8 a	42.3 a
		A₅	6.7 a	31.1 c	11.3 a	26.3 a	1.7 ab	42.9 a

变异来源 Source of variation	自由度 df	有效穗数 Productive panicle number	每穗粒数 Spikelet number per panicle	结实率 Seed setting rate	千粒重1000-grain weight	籽粒充实度 Grain plumpness	产量 Actual yield	F_0.05	F_0.01
年份Year(Y)	1	46.19^**	22.72^**	0.03 ns	3.28 ns	4.62^*	11.68^**	4.01	7.09
品种Variety(V)	2	5331.54^**	9045.32^**	585.45^**	452.57^**	868.89^**	1057.95^**	3.16	4.99
处理Treatment(T)	4	312.53^**	1.52 ns	1.51 ns	5.02^**	58.62^**	221.04^**	2.53	3.66
Y×V	2	0.09 ns	0.85 ns	3.91^*	0.57 ns	0.01 ns	1.52 ns	3.16	4.99
Y×T	4	0.17 ns	0.02 ns	0.72 ns	0.09 ns	0.01 ns	0.34 ns	2.53	3.66
V×T	8	21.96^**	0.49 ns	2.70^*	1.59 ns	2.11^*	22.68^**	2.10	2.84
Y×V×T	8	0.07 ns	0.03 ns	1.75 ns	0.50 ns	0.02 ns	0.73 ns	2.10	2.84

Effects of Different Concentrations of Paclobutrazol in Seedling Stage on Seedling Quality, Tillering Dynamics and Grain Yield of japonica Rice During Late Cropping Season in Southern China

苗期不同浓度多效唑对南方晚粳稻秧苗素质、茎蘖动态及产量的影响

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 6

References 31

Related Articles 15

Recommended Articles

Metrics

类别 Type	品种 Variety	有效穗数 Productive panicle number	每穗粒数 Spikelet number per panicle	结实率 Seed-setting rate	千粒重 1000-grain weight	籽粒充实度 Grain plumpness
产量Yield	H优518 H you 518	0.96^**	-0.51	0.50	0.96^**	0.97^**
	镇稻11 Zhendao 11	0.96^**	-0.46	0.13	0.51	0.94^**
	甬优2640 Yongyou 2640	0.99^**	-0.01	0.02	0.88^**	0.99^**

[1]	GUO Zhan, ZHANG Yunbo. Research Progress in Physiological，Biochemical Responses of Rice to Drought Stress and Its Molecular Regulation [J]. Chinese Journal OF Rice Science, 2024, 38(4): 335-349.
[2]	WEI Huanhe, MA Weiyi, ZUO Boyuan, WANG Lulu, ZHU Wang, GENG Xiaoyu, ZHANG Xiang, MENG Tianyao, CHEN Yinglong, GAO Pinglei, XU Ke, HUO Zhongyang, DAI Qigen. Research Progress in the Effect of Salinity, Drought, and Their Combined Stresses on Rice Yield and Quality Formation [J]. Chinese Journal OF Rice Science, 2024, 38(4): 350-363.
[3]	LÜ Zhou, YI Binghuai, CHEN Pingping, ZHOU Wenxin, TANG Wenbang, YI Zhenxie. Effects of Nitrogen Application Rate and Transplanting Density on Yield Formation of Small Seed Hybrid Rice [J]. Chinese Journal OF Rice Science, 2024, 38(4): 422-436.
[4]	ZHAO Yiting, XIE Keran, GAO Ti, CUI Kehui. Effects of Drought Priming During Tillering Stage on Panicle Development and Yield Formation Under High Temperature During Panicle Initiation Stage in Rice [J]. Chinese Journal OF Rice Science, 2024, 38(3): 277-289.
[5]	ZHOU Tian, WU Shaohua, KANG Jianhong, WU Hongliang, YANG Shenglong, WANG Xingqiang, LI Yu, HUANG Yufeng. Effects of Planting Patterns on Starch Content and Activities of Key Starch Enzymes in Rice Grains [J]. Chinese Journal OF Rice Science, 2024, 38(3): 303-315.
[6]	LIU Huimin, ZHOU Jieqiang, HU Yuanyi, TIAN Yan, LEI Bin, LI Jianwu, WEI Zhongwei, TANG Wenbang. Super-high Yield Characteristics of Two-line Hybrid Rice Zhuoliangyou 1126 [J]. Chinese Journal OF Rice Science, 2024, 38(2): 160-171.
[7]	PENG Xianlong, DONG Qiang, ZHANG Chen, LI Pengfei, LI Bolin, LIU Zhilei, YU Cailian. Effects of Straw Return Rate on Soil Reducing Substances and Rice Growth Under Different Soil Conditions [J]. Chinese Journal OF Rice Science, 2024, 38(2): 198-210.
[8]	ZHU Wang, ZHANG Xiang, GENG Xiaoyu, ZHANG Zhe, CHEN Yinglong, WEI Huanhe, DAI Qigen, XU Ke, ZHU Guanglong, ZHOU Guisheng, MENG Tianyao. Morphological and Physiological Characteristics of Rice Roots Under Combined Salinity-Drought Stress and Their Relationships with Yield Formation [J]. Chinese Journal OF Rice Science, 2023, 37(6): 617-627.
[9]	ZOU Yuao, WU Qixia, ZHOU Qianshun, ZHU Jianqiang, YAN Jun. Response of Middle-season Hybrid Rice to Flooding Stress at the Booting Stage [J]. Chinese Journal OF Rice Science, 2023, 37(6): 642-656.
[10]	YUAN Pei, ZHOU Xuan, YANG Wei, YIN Lingjie, JIN Tuo, PENG Jianwei, RONG Xiangmin, TIAN Chang. Effects of Combined Application of Chemical Fertilizers and Nitrogen Reduction on the Yield of Double-cropping Rice and the Risk of Nitrogen and Phosphorus Loss in Field Water in Dongting Lake Area [J]. Chinese Journal OF Rice Science, 2023, 37(5): 518-528.
[11]	XIAO Dakang, HU Ren, HAN Tianfu, ZHANG Weifeng, HOU Jun, REN Keyu. Effects of Nitrogen Fertilizer Consumption and Operation on Rice Yield and Its Components in China：A Meta-analysis [J]. Chinese Journal OF Rice Science, 2023, 37(5): 529-542.
[12]	HUANG Yaru, XU Peng, WANG Lele, HE Yizhe, WANG Hui, KE Jian, HE Haibing, WU Liquan, YOU Cuicui. Effects of Exogenous Trehalose on Grain Filling Characteristics and Yield Formation of japonica Rice Cultivar W1844 [J]. Chinese Journal OF Rice Science, 2023, 37(4): 379-391.
[13]	DONG Liqiang, YANG Tiexin, LI Rui, SHANG Wenqi, MA Liang, LI Yuedong, SUI Guomin. Effect of Plant-row Spacing on Rice Yield and Root Morphological and Physiological Characteristics in Super High Yield Field [J]. Chinese Journal OF Rice Science, 2023, 37(4): 392-404.
[14]	WANG Wenting, MA Jiaying, LI Guangyan, FU Weimeng, LI Hubo, LIN Jie, CHEN Tingting, FENG Baohua, TAO Longxing, FU Guanfu, QIN Yebo. Effect of Different Fertilizer Application Rates on Rice Yield and Quality Formation and Its Relationship with Energy Metabolism at High Temperature [J]. Chinese Journal OF Rice Science, 2023, 37(3): 253-264.
[15]	YANG Xiaolong, WANG Biao, WANG Benfu, ZHANG Zhisheng, ZHANG Zuolin, YANG Lantian, CHENG Jianping, LI Yang. Effects of Different Water Management on Yield and Rice Quality of Dry-seeded Rice [J]. Chinese Journal OF Rice Science, 2023, 37(3): 285-294.

年份Year	品种 Variety	处理 Treatment	有效穗数 Productive panicle number/(×10⁴·hm^-2)	每穗粒数 Spikelet number per panicle	结实率 Seed setting rate /%	千粒重1000-grain weight/g	籽粒充实度 Grain plumpness /%	产量 Actual yield /(t·hm^-2)
2014	H优518 H you 518	A₁	286.5 c	131.2 a	87.2 a	27.4 b	79.4 b	8.4 d
		A₂	293.8 c	133.2 a	88.8 a	27.7 ab	80.0 b	8.8 c
		A₃	316.4 b	130.1 a	87.5 a	27.7 ab	81.3 a	9.1 bc
		A₄	338.7 a	128.6 a	88.2 a	27.9 a	81.8 a	9.4 a
		A₅	337.2 a	127.8 a	88.1 a	27.8 ab	81.4 a	9.3 ab
	镇稻11 Zhendao 11	A₁	300.2 d	138.7 a	91.3 a	26.2 a	85.1 c	9.1 c
		A₂	311.5 c	139.9 a	91.5 a	26.4 a	85.3 bc	9.3 b
		A₃	329.8 a	138.1 a	92.4 a	26.5 a	86.7 a	9.7 a
		A₄	325.2 ab	136.6 a	91.8 a	26.3 a	86.6 a	9.6 a
		A₅	322.8 b	135.1 a	92.4 a	26.3 a	86.0 ab	9.4 b
	甬优2640 Yongyou 2640	A₁	187.5 c	264.3 a	86.8 a	25.0 b	83.1 c	9.4 c
		A₂	201.7 b	265.1 a	86.2 a	25.3 ab	84.2 b	10.0 b
		A₃	224.5 a	266.5 a	87.1 a	25.5 a	84.8 ab	10.7 a
		A₄	233.1 a	265.0 a	86.5 a	25.6 a	85.6 a	11.0 a
		A₅	227.5 a	264.8 a	86.2 a	25.3 ab	85.1 ab	10.9 a
2015	H优518 H you 518	A₁	290.9 c	127.0 a	88.1 a	27.2 c	79.6 b	8.3 d
		A₂	299.4 c	130.6 a	87.8 a	27.4 bc	80.2 b	8.7 c
		A₃	323.0 b	126.7 a	88.0 a	27.9 ab	81.7 a	9.2 b
		A₄	346.1 a	125.8 a	88.9 a	28.0 a	82.0 a	9.5 a
		A₅	343.3 a	125.2 a	88.7 a	27.9 ab	81.6 a	9.4 a
	镇稻11 Zhendao 11	A₁	305.5 d	134.9 a	91.6 a	26.5 a	85.3 c	9.2 c
		A₂	316.6 c	135.7 a	91.0 a	26.6 a	85.5 bc	9.5 b
		A₃	338.0 a	133.3 a	91.7 a	26.7 a	86.9 a	9.8 a
		A₄	331.0 b	132.5 a	90.9 a	26.4 a	86.8 a	9.7 a
		A₅	328.0 b	132.1 a	91.9 a	26.3 a	86.2 ab	9.5 b
	甬优2640 Yongyou 2640	A₁	193.8 d	258.6 a	86.4 a	25.2 b	83.3 c	9.5 d
		A₂	209.1 c	258.8 a	86.9 a	25.4 ab	84.4 b	10.3 c
		A₃	231.2 b	260.7 a	86.9 a	25.5 a	85.1 ab	10.8 b
		A₄	241.4 a	259.2 a	86.4 a	25.7 a	85.8 a	11.1 a
		A₅	232.9 ab	258.7 a	86.7 a	25.5 a	85.3 a	11.0 ab

年份Year	品种 Variety	处理 Treatment	有效穗数 Productive panicle number/(×10⁴·hm^-2)	每穗粒数 Spikelet number per panicle	结实率 Seed setting rate /%	千粒重1000-grain weight/g	籽粒充实度 Grain plumpness /%	产量 Actual yield /(t·hm^-2)
2014	H优518 H you 518	A₁	286.5 c	131.2 a	87.2 a	27.4 b	79.4 b	8.4 d
		A₂	293.8 c	133.2 a	88.8 a	27.7 ab	80.0 b	8.8 c
		A₃	316.4 b	130.1 a	87.5 a	27.7 ab	81.3 a	9.1 bc
		A₄	338.7 a	128.6 a	88.2 a	27.9 a	81.8 a	9.4 a
		A₅	337.2 a	127.8 a	88.1 a	27.8 ab	81.4 a	9.3 ab
	镇稻11 Zhendao 11	A₁	300.2 d	138.7 a	91.3 a	26.2 a	85.1 c	9.1 c
		A₂	311.5 c	139.9 a	91.5 a	26.4 a	85.3 bc	9.3 b
		A₃	329.8 a	138.1 a	92.4 a	26.5 a	86.7 a	9.7 a
		A₄	325.2 ab	136.6 a	91.8 a	26.3 a	86.6 a	9.6 a
		A₅	322.8 b	135.1 a	92.4 a	26.3 a	86.0 ab	9.4 b
	甬优2640 Yongyou 2640	A₁	187.5 c	264.3 a	86.8 a	25.0 b	83.1 c	9.4 c
		A₂	201.7 b	265.1 a	86.2 a	25.3 ab	84.2 b	10.0 b
		A₃	224.5 a	266.5 a	87.1 a	25.5 a	84.8 ab	10.7 a
		A₄	233.1 a	265.0 a	86.5 a	25.6 a	85.6 a	11.0 a
		A₅	227.5 a	264.8 a	86.2 a	25.3 ab	85.1 ab	10.9 a
2015	H优518 H you 518	A₁	290.9 c	127.0 a	88.1 a	27.2 c	79.6 b	8.3 d
		A₂	299.4 c	130.6 a	87.8 a	27.4 bc	80.2 b	8.7 c
		A₃	323.0 b	126.7 a	88.0 a	27.9 ab	81.7 a	9.2 b
		A₄	346.1 a	125.8 a	88.9 a	28.0 a	82.0 a	9.5 a
		A₅	343.3 a	125.2 a	88.7 a	27.9 ab	81.6 a	9.4 a
	镇稻11 Zhendao 11	A₁	305.5 d	134.9 a	91.6 a	26.5 a	85.3 c	9.2 c
		A₂	316.6 c	135.7 a	91.0 a	26.6 a	85.5 bc	9.5 b
		A₃	338.0 a	133.3 a	91.7 a	26.7 a	86.9 a	9.8 a
		A₄	331.0 b	132.5 a	90.9 a	26.4 a	86.8 a	9.7 a
		A₅	328.0 b	132.1 a	91.9 a	26.3 a	86.2 ab	9.5 b
	甬优2640 Yongyou 2640	A₁	193.8 d	258.6 a	86.4 a	25.2 b	83.3 c	9.5 d
		A₂	209.1 c	258.8 a	86.9 a	25.4 ab	84.4 b	10.3 c
		A₃	231.2 b	260.7 a	86.9 a	25.5 a	85.1 ab	10.8 b
		A₄	241.4 a	259.2 a	86.4 a	25.7 a	85.8 a	11.1 a
		A₅	232.9 ab	258.7 a	86.7 a	25.5 a	85.3 a	11.0 ab