甬优系列杂交稻组合开花期耐冷性评价

doi:10．3969/j．issn．1001G7216．2015．03．008

摘要/Abstract

摘要：

以籼粳杂交稻甬优系列及杂交籼稻钱优2号和常规粳稻浙粳88为材料,于主茎见穗开花日起,用人工气候箱低温(17℃)和适温(25℃)分别处理4 d和7 d,以室外自然温度为对照,研究不同籼粳成分水稻低温胁迫下籽粒的结实特性。结果表明,低温处理显著降低甬优系列的籽粒结实率和穗重,低温胁迫效应以处理7 d较大。按照耐冷性指数来划分,甬优538、浙粳88、甬优10号、甬优6号和甬优15号为耐冷型,甬优8号、甬优12号、甬优9号和甬优17号为冷敏感型,其余为中间型。此外,甬优系列耐冷型与冷敏感型籼粳成分并无明显的差异。进一步分析表明,低温处理7 d,相对冷敏指数与水稻结实率和空粒率极显著相关(r=-0.9552, 0.9602)。

关键词: 籼粳杂交稻, 甬优系列, 耐冷性, 籼粳成分

Abstract:

Yongyou series (indica-japonica hybrid rice) and Qianyou 2 (indica hybrid rice), Zhejing 88 (inbred japonica rice) were subjected to low temperature stress (17℃) and normal temperature treatment(25℃) for 4 days and 7 days in phytotron to investigate the grain filling characteristics during flowering stage with the ambient temperature as control. The results showed that seed setting rate and grain yield per panicle of Yongyou series were decreased significantly under low temperature treatment, especially under the 7-day chilling stress. Based on the cold resistance index, Yongyou 538, Zhejing 88, Yongyou 10, Yongyou 6, Yongyou 15 were chilling tolerant lines, Yongyou 8, Yongyou 12, Yongyou 9, Yongyou 17 were chilling sensitive ones, and the others were intermediate type. There was no significant difference in the ratio of indica and japonica background between chilling tolerant lines and chilling sensitive ones. The correlation analysis indicated that under 7-day of chilling stress, the relative cold sensitivity index was significantly correlated with seed setting rate and grain sterility rate at the 0.01 probability level with the correlation coefficients of -0.9552 and 0.9602, respectively.

Key words: indica-japonica hybrid rice, Yongyou series, chilling tolerance, indica-japonica index

中图分类号:

曾研华, 张玉屏, 王亚梁, 向镜, 陈惠哲, 朱德峰. 甬优系列杂交稻组合开花期耐冷性评价[J]. 中国水稻科学, 2015, 29(3): 291-298.

Yan-hua ZENG, Yu-ping ZHANG, Ya-liang WANG, Jing XIANG, Hui-zhe CHEN, De-feng ZHU. Evaluation of Chilling Resistance in Yongyou Series of Hybrid Rice at Flowering Stage[J]. Chinese Journal OF Rice Science, 2015, 29(3): 291-298.

图/表 6

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品种 Variety	亲本来源(母本×父本) Parent source (male parent×female parent)	籼型成分 indica component /%	粳型成分 japonica component /%	籼粳比例 Ratio of indica and japonica component	每穗粒数 Grain number per panicle
浙粳88 Zhejing 88	春江012 ×R2045 Chunjiang 012×R2045	10.00	90.00	1∶9.00	169.5
甬优10号 Yongyou 10	甬糯2号A ×K6962 Yongnuo 2 A×K6962	21.25	78.75	1∶3.71	181.5
甬优8号 Yongyou 8	甬粳3号A×K6876 Yongjing 3A×K6876	23.75	76.25	1∶3.21	199.3
甬优9号 Yongyou 9	甬粳2号×K6093 Yongjing 2×K6093	45.80	54.20	1∶1.18	210.6
甬优538 Yongyou 538	甬粳3号A × F7538 Yongjing 3A× F7538	45.87	54.13	1∶1.18	336.7
甬优12号 Yongyou 12	甬粳2号A × F5032 Yongjing 2 × F5032	46.34	53.66	1∶1.16	346.0
甬优17号 Yongyou 17	甬粳4号A×甬恢12 Yongjing 4 A×Yonghui 12	47.65	52.35	1∶1.10	303.3
甬优6号 Yongyou 6	甬粳2号A×K4806 Yongjing 2A× K4806	51.25	48.75	1∶0.95	361.3
甬优11号 Yongyou 11	甬粳2号A ×K216211 Yongjing 2A×K216211	51.25	48.75	1∶0.95	331.2
甬优15号 Yongyou 15	甬粳4号A ×F5032 Yongjing 4 A×F5032	52.35	47.65	1∶0.91	293.4
钱优2号 Qianyou 2	钱江1号A ×浙恢0702 Qianjiang 1A×Zhehui 0702	84.37	15.63	1∶0.19	222.3

品种 Variety	亲本来源(母本×父本) Parent source (male parent×female parent)	籼型成分 indica component /%	粳型成分 japonica component /%	籼粳比例 Ratio of indica and japonica component	每穗粒数 Grain number per panicle
浙粳88 Zhejing 88	春江012 ×R2045 Chunjiang 012×R2045	10.00	90.00	1∶9.00	169.5
甬优10号 Yongyou 10	甬糯2号A ×K6962 Yongnuo 2 A×K6962	21.25	78.75	1∶3.71	181.5
甬优8号 Yongyou 8	甬粳3号A×K6876 Yongjing 3A×K6876	23.75	76.25	1∶3.21	199.3
甬优9号 Yongyou 9	甬粳2号×K6093 Yongjing 2×K6093	45.80	54.20	1∶1.18	210.6
甬优538 Yongyou 538	甬粳3号A × F7538 Yongjing 3A× F7538	45.87	54.13	1∶1.18	336.7
甬优12号 Yongyou 12	甬粳2号A × F5032 Yongjing 2 × F5032	46.34	53.66	1∶1.16	346.0
甬优17号 Yongyou 17	甬粳4号A×甬恢12 Yongjing 4 A×Yonghui 12	47.65	52.35	1∶1.10	303.3
甬优6号 Yongyou 6	甬粳2号A×K4806 Yongjing 2A× K4806	51.25	48.75	1∶0.95	361.3
甬优11号 Yongyou 11	甬粳2号A ×K216211 Yongjing 2A×K216211	51.25	48.75	1∶0.95	331.2
甬优15号 Yongyou 15	甬粳4号A ×F5032 Yongjing 4 A×F5032	52.35	47.65	1∶0.91	293.4
钱优2号 Qianyou 2	钱江1号A ×浙恢0702 Qianjiang 1A×Zhehui 0702	84.37	15.63	1∶0.19	222.3

品种 Variety	结实率 Seed setting rate /%						相对结实率 Relative seed setting rate /%				相对冷敏指数 Relative cold sensitivity index /%
品种 Variety	CK			T1D1		T1D2	T2D1	T2D2	T2D1	T2D2	T2D1	T2D2
浙粳88 Zhejing 88	88.31 a	75.99 ab	75.36 ab	82.14 a	69.74 b	93.0 a		79.0 a		7.0 b		21.0 d
甬优10号 Yongyou 10	87.80 a	90.02 a	86.51 a	74.22 b	59.89 c	84.5 ab		68.2 ab		15.5 ab		31.8 cd
甬优8号 Yongyou 8	85.56 a	84.77 a	87.33 a	71.81 b	37.82 c	83.9 ab		44.2 de		16.1 a		55.8 b
甬优9号 Yongyou 9	91.33 a	88.09 a	87.52 a	74.57 b	28.15 c	81.6 b		30.8 e		18.4 a		69.2 a
甬优538 Yongyou 538	89.16 a	88.48 a	88.88 a	83.47 a	59.59 b	93.6 a		66.8 ab		6.4 b		33.2 c
甬优12号 Yongyou 12	86.52 a	91.37 a	88.67 a	69.18 b	33.32 c	80.0 b		38.5 e		20.0 a		61.5 ab
甬优17号 Yongyou 17	92.47 a	91.42 a	88.94 a	71.61 b	36.50 c	77.4 b		39.5 e		22.6 a		60.5 ab
甬优6号 Yongyou 6	70.83 a	72.79 a	67.68 a	66.44 a	46.49 b	93.8 a		65.6 ab		6.2 b		34.4 c
甬优11号 Yongyou 11	87.93 a	76.01 b	73.89 b	72.31 b	47.78 c	82.2 b		54.3 cd		17.8 a		45.7 bc
甬优15号 Yongyou 15	82.75 a	80.65 a	86.02 a	65.86 b	49.46 c	79.6 b		59.8 bc		20.4 a		40.2 c
钱优2号 Qianyou 2	94.95 a	89.64 a	89.72 a	73.81 b	55.79 c	77.7 b		58.8 bc		22.3 a		41.2 c

品种 Variety	结实率 Seed setting rate /%						相对结实率 Relative seed setting rate /%				相对冷敏指数 Relative cold sensitivity index /%
品种 Variety	CK			T1D1		T1D2	T2D1	T2D2	T2D1	T2D2	T2D1	T2D2
浙粳88 Zhejing 88	88.31 a	75.99 ab	75.36 ab	82.14 a	69.74 b	93.0 a		79.0 a		7.0 b		21.0 d
甬优10号 Yongyou 10	87.80 a	90.02 a	86.51 a	74.22 b	59.89 c	84.5 ab		68.2 ab		15.5 ab		31.8 cd
甬优8号 Yongyou 8	85.56 a	84.77 a	87.33 a	71.81 b	37.82 c	83.9 ab		44.2 de		16.1 a		55.8 b
甬优9号 Yongyou 9	91.33 a	88.09 a	87.52 a	74.57 b	28.15 c	81.6 b		30.8 e		18.4 a		69.2 a
甬优538 Yongyou 538	89.16 a	88.48 a	88.88 a	83.47 a	59.59 b	93.6 a		66.8 ab		6.4 b		33.2 c
甬优12号 Yongyou 12	86.52 a	91.37 a	88.67 a	69.18 b	33.32 c	80.0 b		38.5 e		20.0 a		61.5 ab
甬优17号 Yongyou 17	92.47 a	91.42 a	88.94 a	71.61 b	36.50 c	77.4 b		39.5 e		22.6 a		60.5 ab
甬优6号 Yongyou 6	70.83 a	72.79 a	67.68 a	66.44 a	46.49 b	93.8 a		65.6 ab		6.2 b		34.4 c
甬优11号 Yongyou 11	87.93 a	76.01 b	73.89 b	72.31 b	47.78 c	82.2 b		54.3 cd		17.8 a		45.7 bc
甬优15号 Yongyou 15	82.75 a	80.65 a	86.02 a	65.86 b	49.46 c	79.6 b		59.8 bc		20.4 a		40.2 c
钱优2号 Qianyou 2	94.95 a	89.64 a	89.72 a	73.81 b	55.79 c	77.7 b		58.8 bc		22.3 a		41.2 c

品种 Variety	单穗产量 Grain yield per panicle/g							抗冷指数 Chilling resistance index/%
品种 Variety	CK			T1D1	T1D2	T2D1	T2D2	T2D1	T2D2
浙粳88 Zhejing 88	3.75 a	3.05 ab	3.08 ab	3.06 ab	2.84 b		18.4 a		24.3 bc
甬优10号 Yongyou 10	4.02 bc	5.28 a	4.62 ab	3.78 c	3.65 c		6.0 b		9.2 d
甬优8号 Yongyou 8	4.30 a	4.47 a	4.03 a	3.96 a	2.84 b		8.0 b		34.0 b
甬优9号 Yongyou 9	4.11 a	4.14 a	4.54 a	3.88 a	2.93 b		5.5 b		28.8 b
甬优538 Yongyou 538	5.25 a	5.85 a	5.86 a	5.04 ab	4.79 b		4.0 b		8.9 d
甬优12号 Yongyou 12	5.47 ab	6.33 a	6.26 a	5.19 b	3.08 c		5.0 b		43.7 a
甬优17号 Yongyou 17	7.14 a	6.43 ab	6.44 ab	6.15 b	4.29 c		13.9 a		40.0 a
甬优6号 Yongyou 6	4.50 b	4.37 b	5.74 a	4.02 bc	3.63 c		10.6 b		19.2 c
甬优11号 Yongyou 11	7.57 a	6.04 b	5.57 bc	6.12 b	5.50 c		19.3 a		27.3 b
甬优15号 Yongyou 15	6.15 a	6.37 a	6.01 a	5.79 a	4.96 b		5.9 b		19.3 c
钱优2号 Qianyou 2	4.92 a	4.38 a	4.83 a	4.29 a	3.01 b		12.9a b		39.0 ab