Advances in the Effects of the Ability of Axillary Bud Germination on Grain Yield in Ratoon Rice

doi:10.16819/j.1001-7216.2020.9097

Abstract

Abstract:

Ratoon rice can make full use of heat and light resources. It has the advantage of two harvests with one sowing, and it can increase multiple cropping index and grain yield per unit area, which has great importance to rice production and food security in our country. The effective panicle number plays a vital role in the yield formation in ratoon rice, which depends on the germination ability of regeneration buds. Therefore, improving the axillary bud germination ability of ratoon rice holds the key to increasing rice yield in regenerative season. In this paper, we outlined the current research advances in the mechanism of axillary bud germination and the influencing factors of the germination ability as well as the technical measures to improve axillary bud germination ability. We also proposed the research highlights in the future on enhancing axillary bud germination. It will lay a theoretical basis for higher yield in ratoon rice.

Key words: ratoon rice, axillary bud, germination ability, yield

摘要：

再生稻能够充分利用温光资源,一种两收,能提高复种指数和单位面积粮食产量,是增加水稻总产的一条重要途径,对保障我国粮食安全意义重大。再生季有效穗数是影响再生稻产量的重要因子,而有效穗数取决于再生芽萌发能力。提高再生稻腋芽萌发能力对提高再生季水稻产量有关键作用。本文介绍了国内再生稻发展现状,综述了腋芽萌发能力和其影响因素以及提高腋芽能力的技术措施等,并提出了未来加强再生稻腋芽萌发的研究重点,以期为再生稻高产栽培提供理论依据。

关键词: 再生稻, 腋芽, 萌发能力, 产量

CLC Number:

S511.01

Hao WANG, Qiang ZHANG, Wendi ZHANG, Siyu LI, Jian HUANG, An ZHU, Lijun LIU. Advances in the Effects of the Ability of Axillary Bud Germination on Grain Yield in Ratoon Rice[J]. Chinese Journal OF Rice Science, 2020, 34(3): 205-216.

汪浩, 张强, 张文地, 李思宇, 黄健, 朱安, 刘立军. 腋芽萌发能力对再生稻产量影响的研究进展[J]. 中国水稻科学, 2020, 34(3): 205-216.

Figures/Tables 3

References 82

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文献 Reference	年份 Year	材料 Material	QTL	染色体 Chromosome	标记区间 Marker interval	贡献率 Variation explained/%	加性效应 Additive effect
[15]	1997	窄叶青8号/京系17 Zhaiyeqing 8/Jingxi 17	Ra3a	3	RG369A–RG369B	9.8	0.38
			Ra4a	4	C975–RG119	16.2	-0.20
			Ra5a	5	C624–RG573	8.5	0.37
			Ra6a	6	RG653–RG433	16.5	0.49
			Ra6b	6	G294–G422	13.4	0.46
			Ra7a	7	RG650–C285	18.3	0.51
[16]	2004	明恢86/佳辐占 Minghui 86/Jiafuzhan	qSNP	1	RM1–RM283	13.6	15.27
			qSS	7	RM18–RM234	9.1	5.81
			qPN	7	RM18–RM234	8.0	1.31
			qGY	7	RM18–RM234	7.9	2.77
[17]	2012	糯89-1/蜀恢527 Nuo 89-1/Shuhui 527	qRA4	4	RM401–RM307	8.17	0.32
[17]	2012	糯89-1/蜀恢527 Nuo 89-1/Shuhui 527	qRA5	5	RM163–RM153	7.09	-0.39
[18]	2016	热粳35/协B Rejing 35/Xie B	qRa8	8	RM6976–RN264	23.35	0.19
[18]	2016	热粳35/协B Rejing 35/Xie B	qRa11	11	RM2191–RM6239	16.01	-0.13

文献 Reference	年份 Year	材料 Material	QTL	染色体 Chromosome	标记区间 Marker interval	贡献率 Variation explained/%	加性效应 Additive effect
[15]	1997	窄叶青8号/京系17 Zhaiyeqing 8/Jingxi 17	Ra3a	3	RG369A–RG369B	9.8	0.38
			Ra4a	4	C975–RG119	16.2	-0.20
			Ra5a	5	C624–RG573	8.5	0.37
			Ra6a	6	RG653–RG433	16.5	0.49
			Ra6b	6	G294–G422	13.4	0.46
			Ra7a	7	RG650–C285	18.3	0.51
[16]	2004	明恢86/佳辐占 Minghui 86/Jiafuzhan	qSNP	1	RM1–RM283	13.6	15.27
			qSS	7	RM18–RM234	9.1	5.81
			qPN	7	RM18–RM234	8.0	1.31
			qGY	7	RM18–RM234	7.9	2.77
[17]	2012	糯89-1/蜀恢527 Nuo 89-1/Shuhui 527	qRA4	4	RM401–RM307	8.17	0.32
[17]	2012	糯89-1/蜀恢527 Nuo 89-1/Shuhui 527	qRA5	5	RM163–RM153	7.09	-0.39
[18]	2016	热粳35/协B Rejing 35/Xie B	qRa8	8	RM6976–RN264	23.35	0.19
[18]	2016	热粳35/协B Rejing 35/Xie B	qRa11	11	RM2191–RM6239	16.01	-0.13

品种名称 Cultivar name	头季稻产量 Yield of main crop/(t·hm^-2)	再生季产量 Yield of ratoon rice/(t·hm^-2)	两季总产 Total yield/(t·hm^-2)
两优6326 Liangyou 6326	8.80	6.62	15.4
天两优616 Tianliangyou 616	8.50	6.38	14.9
广两优476 Guangliangyou 476	8.41	6.57	15.0
丰两优香1号 Fengliangyouxiang 1	8.45	6.19	14.6
平均值 Average	8.54	6.37	14.9

品种名称 Cultivar name	头季稻产量 Yield of main crop/(t·hm^-2)	再生季产量 Yield of ratoon rice/(t·hm^-2)	两季总产 Total yield/(t·hm^-2)
两优6326 Liangyou 6326	8.80	6.62	15.4
天两优616 Tianliangyou 616	8.50	6.38	14.9
广两优476 Guangliangyou 476	8.41	6.57	15.0
丰两优香1号 Fengliangyouxiang 1	8.45	6.19	14.6
平均值 Average	8.54	6.37	14.9

品种类型 Type	品种名称 Combination name	单株分蘖数 Tiller number per plant	成熟期叶面积指数 LAI at maturity	齐穗至成熟干物质积累量 DMA/(t·hm^-2)	每穗粒数 Spikelet number per panicle	再生季/头季稻产量比 YR
适宜作再生稻种植 Suitable for ratoon rice	两优6326、天两优616、广两优476、丰两优香1号 Liangyou 6236, Tianliangyou 616 Guangliangyou 476, Fengliangyouxiang 1	12.0–13.2	4.9–6.2	6.2–8.2	150.1–169.0	0.70–0.78
不适作再生稻种植 Not suitable for ratoon rice	C两优018、E两优476、两优0815、盛泰优018 C liangyou 018, E liangyou 476 Liangyou 0815, Shengtaiyou 018	10.7–11.5	4.3–4.5	4.4–5.4	114.9–136.4	0.55–0.62