Analysis of agronomic traits of 9 representative varieties of late japonica rice in Zhejiang Province

doi:10.16178/j.issn.0528-9017.20230290

Abstract

Abstract:

The relationship between agronomic traits and yield of nine representative late japonica rice varieties in Zhejiang Province was analyzed. The effects of agronomic traits on yield could be understood, and to find the rules of late japonica rice variety examination and approval in Zhejiang province. In this study, nine late japonica rice varieties with good performance in Zhejiang Province were selected, and the representative varieties were transplanted to the field after accelerating germination, agronomic traits such as plant height, stem diameter, tillering, flag leaf length, flag leaf width and chlorophyll content were measured. Flag leaf width and stem diameter were the two most important factors affecting yield. The average stem diameter and flag leaf width of three cultivars in 2010-2019 were the largest in three periods, stem diameter and flag leaf width were the most important agronomic traits affecting yield of late japonica rice, and breeding researchers in Zhejiang Province had been increasing stem diameter and flag leaf width of late japonica rice.

Key words: late japonica rice, agronomic traits, yield

CLC Number:

S511

GUO Ying, LI Zhiying, ZHAI Rongrong, YE Jing, WANG Wenpo, YE Shenghai, WANG Jian. Analysis of agronomic traits of 9 representative varieties of late japonica rice in Zhejiang Province[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(4): 756-759.

Figures/Tables 3

References 19

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年份	品种	株高/cm	茎粗/mm	分蘖数	剑叶长/cm	剑叶宽/cm	叶绿素含量
1990—1999	秀水48	112.00	4.78	22.33	26.23	1.40	42.13
	祥湖84	89.67	5.42	25.33	22.48	1.89	44.56
	秀水11	103.33	5.55	28.67	30.44	1.34	38.01
2000—2009	嘉花1号	99.67	5.96	33.00	26.20	1.71	44.84
	浙粳22	104.67	6.00	22.67	26.23	1.54	42.72
	秀水09	100.00	5.93	14.33	24.81	1.67	44.47
2010—2019	秀水134	99.00	6.41	13.67	27.59	1.69	41.46
	嘉58	107.00	6.35	26.00	25.77	1.58	39.66
	浙粳99	98.67	6.70	32.00	22.88	1.66	42.01

年份	品种	株高/cm	茎粗/mm	分蘖数	剑叶长/cm	剑叶宽/cm	叶绿素含量
1990—1999	秀水48	112.00	4.78	22.33	26.23	1.40	42.13
	祥湖84	89.67	5.42	25.33	22.48	1.89	44.56
	秀水11	103.33	5.55	28.67	30.44	1.34	38.01
2000—2009	嘉花1号	99.67	5.96	33.00	26.20	1.71	44.84
	浙粳22	104.67	6.00	22.67	26.23	1.54	42.72
	秀水09	100.00	5.93	14.33	24.81	1.67	44.47
2010—2019	秀水134	99.00	6.41	13.67	27.59	1.69	41.46
	嘉58	107.00	6.35	26.00	25.77	1.58	39.66
	浙粳99	98.67	6.70	32.00	22.88	1.66	42.01

性状	株高	茎粗	分蘖数	剑叶长	剑叶宽
茎粗	-0.261
分蘖数	0.026	-0.179
剑叶长	0.484	-0.171	0.108
剑叶宽	-0.837^**	0.337	-0.127	-0.726^*
叶绿素含量	-0.472	-0.091	-0.109	-0.656^*	0.706^*

性状	株高	茎粗	分蘖数	剑叶长	剑叶宽
茎粗	-0.261
分蘖数	0.026	-0.179
剑叶长	0.484	-0.171	0.108
剑叶宽	-0.837^**	0.337	-0.127	-0.726^*
叶绿素含量	-0.472	-0.091	-0.109	-0.656^*	0.706^*