Plant-type Characteristics of High-Yielding Lines of Yongyou japonica/indica Hybrid Rice with Medium Maturity

doi:10.16819/j.1001-7216.2016.5135

Abstract

Abstract:

A field experiment was conducted using Yongyou japonica/indica hybrids with medium maturity as material, conventional japonica rice (CJR) Ningjing 3 and Wuyunjing 29, hybrid indica rice (HIR) Fengliangyouxiang 1 and Xinliangyou 6380 as the check. Differences in panicle, leaf, and culm traits of various rice types were compared. The results were follows: 1) Yongyou japonica/indica hybrids were divided into two types:high-yielding lines (HYL,over 10.5t/hm²) and medium-yielding lines (MYL,less than 10.5t/hm²) based on yield performance. HYL includes Yongyou 2638, Yongyou 2640, Yongyou 1610, Yongyou 1612, and Yongyou 1640, while MYL includes Yongyou 1851, Yongyou 1852, Yongyou 1763, Yongyou 7753, and Yongyou 5854. CJR had the highest number of panicles, seed-setting rate, and 1000-grain weight, while HYL had the highest spikelet number per panicle. 2) HIR had the longest panicle length, while HYL had the highest grain weight per panicle and grain density. HIR had the highest number of spikelets on the low secondary rachis branches,while HYL and MYL had the highest number of spikelets in other panicle positions, especially on the upper secondary rachis branches and the middle secondary rachis branches of panicle. 3) Leaf length and width of the top-three leaves followed a tendency of MYL>HIR>HYL>CJR. HYL had consistently higher rolling rate of top-three leaves than MYL. HYL had the lowest leaf basic angle and dropping angle of the 1^st and 2^ndleaf from the top. 4) Plant height of HYL was 118.7 cm, higher than CJR (96.6 cm), shorter than HIR (132.9 cm) and MYL (144.1 cm). MYL had the highest length of top-three nodes, while CJR showed the opposite. HYL had the lowest rate of panicle and neck internode to plant height and rate of neck internode to stalk length, while HYL had the highest dry weight per stem, dry weight per sheath, and dry weight per unit internode among different rice types. Breeding index on plant-type characteristics of high-yielding lines of Yongyou japonica/indica hybrid rice with medium maturity and corresponding cultivation methods were proposed.

Key words: medium-maturity, Yongyou, high-yielding, panicle traits, plant type, rice

摘要：

以甬优系列籼粳杂交稻中熟类型品系为试材,常规粳稻宁粳3号和武运粳29、杂交籼稻丰两优香1号和新两优6380为对照,比较各类型在穗部特征、叶片形态以及茎秆特性上的差异。结果表明,1)依据甬优系列籼粳杂交稻两年中的产量表现,将其分成高产品系(产量>10.5 t/hm²)和中产品系(产量<10.5 t/hm²)。两年中,甬优系列籼粳杂交稻高产品系为甬优2638、甬优2640、甬优1610、甬优1612和甬优1640,中产品系为甬优1851、甬优1852、甬优7753、甬优1763和甬优 5854。产量构成因素方面,不同类型品种单株穗数、结实率和千粒重以常规粳稻最高,每穗粒数以高产品系最高。2)穗长以杂交籼稻最高,单穗重和着粒密度以高产品系最高;除穗下部二次枝粳籽粒数以杂交籼稻最高外,穗部其余5部位籽粒数均以高产品系、中产品系显著高于常规粳稻和杂交籼稻,且籽粒数以上部二次枝粳和中部二次枝粳的增加最为明显。3)上三叶的叶长和叶宽为中产品系>杂交籼稻>高产品系>常规粳稻,高产品系上三叶的卷曲率高于对应的中产品系;上部第1、2叶的叶基角和披垂角以高产品系最低。4)高产品系株高为118.7cm,高于常规粳稻(96.6cm),低于杂交籼稻(132.9cm)和中产品系(144.1cm);上部第1、2、3节间长度以中产品系最高、常规粳稻最低;穗长与穗下节间长占株高比例、穗下节间占秆长比例均以高产品系最低。单茎干质量、单茎鞘干质量、茎秆单位节间干质量以高产品系最高。提出了甬优籼粳交中熟高产品系的株型选育指标及配套高产栽培措施。

关键词: 中熟, 甬优, 高产, 穗部特征, 株型, 水稻

CLC Number:

S511.01

Tian-yao MENG, Xiao-yun LI, Chao LI, Huan-he WEI, Tian-yu SHI, Rong-rong MA, Xiao-yan WANG, Jun-wen YANG, Qi-gen DAI, Hong-cheng ZHANG. Plant-type Characteristics of High-Yielding Lines of Yongyou japonica/indica Hybrid Rice with Medium Maturity[J]. Chinese Journal OF Rice Science, 2016, 30(2): 170-180.

孟天瑶, 李晓芸, 李超, 韦还和, 史天宇, 马荣荣, 王晓燕, 杨筠文, 戴其根, 张洪程. 甬优系列籼粳杂交稻中熟高产品系的株型特征[J]. 中国水稻科学, 2016, 30(2): 170-180.

Figures/Tables 9

References 27

[1]	徐海, 宫彦龙, 夏原野, 等. 中日水稻品种杂交后代株型性状的变化及其相互关系. 中国水稻科学, 2015, 29(4): 363-372.
	Xu H, Gong Y L, Xia Y Y, et al.Variations in plant type traits and their relationship of progeny derived from the cross between Chinese rice variety and Japanese rice variety.Chin J Rice Sci, 2015, 29: 363-372 (in Chinese with English abstract).
[2]	Khush G S, Peng S B.Breaking the yield frontier of rice.Geo J, 1995, 35: 329-332.
[3]	袁隆平. 杂交水稻超高产育种. 杂交水稻, 1997, 12: 1-6.
	Yuan L P.Hybrid rice breeding for super high yield.Hybrid Rice, 1997, 12: 1-6. (in Chinese with English abstract)
[4]	马均, 马文波, 明东风, 等. 重穗型水稻株型特性研究. 中国农业科学, 2006, 39: 679-685.
	Ma J, Ma W B, Ming D F, et al.Studies on the characteristics of rice plant with heavy panicle.Sci Agric Sin, 2006, 39: 679-685. (in Chinese with English abstract)
[5]	曾勇军, 石庆华, 潘晓华, 等. 长江中下游双季稻高产株型特征初步研究. 作物学报, 2009, 35: 546-551.
	Zeng Y J. Shi Q H, Pan X H, et al.Preliminary study on the plant type characteristics of double cropping rice in middle and lower reaches of Changjiang River.Acta Agron Sin, 2009, 35: 546-551. (in Chinese with English abstract)
[6]	张庆, 殷春渊, 张洪程, 等. 水稻氮高产高效与低产低效两类品种株型差异研究. 作物学报, 2010, 36: 1011-1021.
	Zhang Q, Yin C Y, Zhang H C, et al.Differences of plant-type characteristics between rice cultivars with high and low levels in yield and nitrogen use efficiency.Acta Agron Sin, 2010, 36: 1011-1021 (in Chinese with English abstract) .
[7]	韦还和, 李超, 张洪程, 等. 水稻甬优12不同产量群体的株型特征. 作物学报, 2014, 40: 2160-2168.
	Wei H H, Li C, Zhang H C, et al.Plant-type characteristics in populations with different yield of Yongyou 12.Acta Agron Sin, 2014, 40: 2160-2168. (in Chinese with English abstract)
[8]	张洪程, 吴桂成, 李德剑, 等. 杂交粳稻13.5 t/hm2超高产群体动态特征及形成机制的探讨. 作物学报, 2010, 36: 1547-1558.
	Zhang H C, Wu G C, Li D J, et al.Population characteristics and formation mechanism for super-high-yielding hybrid japonica rice (13.5 t ha-1).Acta Agron Sin, 2010, 36: 1547-1558. (in Chinese with English abstract)
[9]	韦还和, 姜元华, 赵可, 等. 甬优系列杂交稻品种的超高产群体特征. 作物学报, 2013, 39: 2201-2210.
	Wei H H, Jiang Y H, Zhao K, et al.Characteristics of super-high yield population in Yongyou series of hybrid rice.Acta Agron Sin, 2013, 39: 2201-2210. (in Chinese with English abstract)
[10]	王晓燕, 韦还和, 张洪程, 等. 水稻甬优12产量13.5 t/hm2以上超高产群体的生育特征. 作物学报, 2014, 40: 2149-2159.
	Wang X Y, Wei H H, Zhang H C, et al.Population characteristics for super-high yielding hybrid rice Yongyou 12(>13.5 t ha-1).Acta Agron Sin, 2014, 40: 2149-2159.(in Chinese with English abstract)
[11]	胡雅杰, 朱大伟, 钱海军, 等. 籼粳杂交稻甬优2640钵苗机插超高产群体若干特征探讨. 作物学报, 2014, 40: 2016-2027.
	Hu Y J, Zhu D W, Qian H J, et al.Some characteristics of mechanically transplanted pot seedlings in super high yielding population of indica-japonica hybrid rice Yongyou 2640.Acta Agron Sin, 2014, 40: 2016-2027.(in Chinese with English abstract)
[12]	许德海, 王晓燕, 马荣荣, 等. 重穗型籼粳杂交稻甬优6号超高产生理特性. 中国农业科学, 2010, 43: 4796-4804.
	Xu D H, Wang X Y, Ma R R, et al.Analysis on physiological properties of the heavy panicle type of indica-japonica inter-subspecific hybrid rice Yongyou 6.Sci Agric Sin, 2010, 43: 4796-4804. (in Chinese with English abstract)
[13]	马荣荣, 许德海, 王晓燕, 等. 籼粳亚种间杂交稻甬优6号超高产株型特征与竞争优势分析. 中国水稻科学, 2007, 21: 281-286.
	Ma R R, Xu D H, Wang X Y, et al.Heterosis on plant morphology of Yongyou 6, an indica-japonica inter-subspecific super high-yielding hybrid rice.Chin J Rice Sci, 2007, 21: 281-286. (in Chinese with English abstract)
[14]	姜元华, 张洪程, 赵可, 等. 长江下游地区不同类型水稻品种产量及其构成因素特征的研究. 中国水稻科学, 2014, 28: 621-631.
	Jiang Y H, Zhang H C, Zhao K, et al.Difference in yield and its components characteristics of different type rice cultivars in the lower reaches of the Yangtze River.Chin J Rice Sci, 2014, 28: 621-631. (in Chinese with English abstract)
[15]	姜元华, 许轲, 赵可, 等. 甬优系列籼粳杂交稻的冠层结构与光合特性. 作物学报, 2015, 41: 286-296.
	Jiang Y H, Xu K, Zhao K, et al.Canopy structure and photosynthetic characteristics of Yongyou series of indica-japonica hybrid rice under high-yielding cultivation condition.Acta Agron Sin, 2015, 41: 286-296. (in Chinese with English abstract)
[16]	姜元华, 许俊伟, 赵可, 等. 甬优系列籼粳杂交稻根系形态与生理特征. 作物学报, 2015, 41: 89-99.
	Jiang Y H, Xu J W, Zhao K, et al.Root system morphological and physiological characteristics of Indica-japonica hybrid rice of Yongyou series.Acta Agron Sin, 2015, 41: 89-99. (in Chinese with English abstract)
[17]	龚金龙, 胡雅杰, 龙厚元, 等. 大穗型杂交粳稻产量构成因素协同特征及穗部性状. 中国农业科学, 2012, 45: 2147-2158.
	Gong L J, Hu Y J, Long H Y, et al.Study on collaborating characteristics of grain yield components and panicle traits of large panicle hybrid japonica rice.Sci Agric Sin, 2012, 45: 2147-2158. (in Chinese with English abstract)
[18]	杨建昌. 水稻弱势粒灌浆机理与调控途径. 作物学报, 2010, 36: 2011-2019.
	Yang J C.Mechanism and regulation in the filling of inferior spikelets of rice.Acta Agron Sin, 2010, 36: 2011-2019. (in Chinese with English abstract)
[19]	李红宇, 侯昱铭, 陈英华, 等. 东北地区水稻主要性状比较分析. 作物学报, 2009, 35: 921-929.
	Li H Y, Hou Y M, Chen Y H, et al.Comparison of rice plant types in northeast region of China.Acta Agron Sin, 2009, 35: 921-929. (in Chinese with English abstract)
[20]	李敏, 张洪程, 杨雄, 等. 高产氮高效粳稻品种的叶片光合及衰老特性研究. 中国水稻科学, 2013, 27: 168-176.
	Li M, Zhang H C, Yang X, et al.Leaf photosynthesis and senescence characteristics of japonica rice cultivars with high yield and high N-efficiency.Chin J Rice Sci, 2013, 27: 168-176. (in Chinese with English abstract)
[21]	程式华, 翟虎渠. 水稻亚种间超高产杂交组合若干株型因子的比较. 作物学报, 2000, 26: 713-718.
	Cheng S H, Zhai H Q.Comparison of some plant type components in super high-yielding hybrids of inter-subspecific rice.Acta Agron Sin, 2000, 26:713-718. (in Chinese with English abstract)
[22]	杜永, 王艳, 王学红, 等. 黄淮地区不同粳稻品种株型、产量与品质的比较分析. 作物学报, 2007, 33: 1079-1085.
	Du Y, Wang Y, Wang X H, et al.Comparisons of plant type, grain yield, and quality of different japonica rice cultivars in Huanghe-Huaihe River area.Acta Agron Sin, 2007, 33: 1079-1085. (in Chinese with English abstract)
[23]	李敏, 张洪程, 杨雄, 等. 不同氮利用效率基因型水稻茎秆特性比较. 作物学报, 2012, 38: 1277-1285.
	Li M, Zhang H C, Yang X, et al.Comparision of culm characteristics with different nitrogen use efficiencies for rice cultivars.Acta Agron Sin, 2012, 38:1277-1285. (in Chinese with English abstract)
[24]	姜元华, 张洪程, 赵可, 等. 机插条件下籼粳杂交稻茎秆的抗倒性评价及成因分析. 农业工程学报, 2014, 30: 19-29.
	Jiang Y H, Zhang H C, Zhao K, et al.Evaluation and cause analysis of rice-stem lodging resistance for mechanical transplanted indica-japonica hybrid rice. Trans CSAE, 20141 30: 19-29.(in Chinese with English abstract)
[25]	蒋彭炎, 冯来定, 姚长溪. 从水稻稀少平栽培法的高产效应看栽培技术与株型的关系. 中国水稻科学, 1987, 1: 111-117.
	Jiang P Y, Feng L D,Yao C X.The effect of cultivation techniques on plant type in view of the high yield result induced by TFS* cultivation method in paddy rice.Chin J Rice Sci, 1987, 1: 111-117. (in Chinese with English abstract)
[26]	Duy P Q, Sagawa S, Hirano M, et al.Varietal differences in the responses of yield components of rice plants to nitrogen-free basal dressing accompanied with sparse planting density in the Tohoku region of Japan.Plant Prod Sci, 2004,7: 109-117.
[27]	张耗, 剧成欣, 陈婷婷, 等. 节水灌溉对节水抗旱水稻品种产量的影响及生理基础. 中国农业科学, 2012, 45: 4782-4793
	Zhang H, Ju C X, Chen T T, et al.Effect of water-saving irrigation on the grain yield of water-saving and drought-resistance rice and its physiological bases.Sci Agric Sin, 2012, 45: 4782-4793. (in Chinese with English abstract)

月份 Month	平均温度 Mean temperature/℃			日照时数 Sunshine hours/h			降雨量 Rainfall/mm
月份 Month	2013		2014		2013	2014	2013	2014
5月May	22.2	21.7	192.4	139.1		73.6		144.8
6月June	24.9	23.9	100.6	90.2		324.2		186.1
7月July	31.5	28.5	338.3	195.3		69.3		149.9
8月August	30.7	27.6	263.1	173.1		251.6		326.2
9月September	25.5	25.2	223.8	165.2		32.9		53.2
10月October	19.9	20.7	161.3	150.7		424.0		371.4
11月November	13.8	15.4	178.3	163.9		42.6		54.7

月份 Month	平均温度 Mean temperature/℃			日照时数 Sunshine hours/h			降雨量 Rainfall/mm
月份 Month	2013		2014		2013	2014	2013	2014
5月May	22.2	21.7	192.4	139.1		73.6		144.8
6月June	24.9	23.9	100.6	90.2		324.2		186.1
7月July	31.5	28.5	338.3	195.3		69.3		149.9
8月August	30.7	27.6	263.1	173.1		251.6		326.2
9月September	25.5	25.2	223.8	165.2		32.9		53.2
10月October	19.9	20.7	161.3	150.7		424.0		371.4
11月November	13.8	15.4	178.3	163.9		42.6		54.7

年份、品种和类型 Year, variety and type	单位面积穗数 No. of panicles /(×10⁴ hm^-2)	每穗粒数 Spikelet number per panicle	结实率 Seed-setting rate/%	千粒重 1000-grain weight /g	实际产量 Actual yield /(t·hm^-2)
2013
高产品系HYL	204.0	328.7	82.9	21.5	11.7
甬优2638 Yongyou 2638	196.5	337.7	81.6	22.4	11.1
甬优1610 Yongyou 1610	223.5	311.9	82.6	21.3	10.9
甬优1640 Yongyou 1640	213.0	301.6	80.5	22.4	10.8
甬优1612 Yongyou 1612	207.0	323.5	83.4	22.1	11.1
平均 Mean	208.8±10.9 b	320.7±23.7 a	82.2±1.5 c	21.9±0.5 c	11.1±0.3 a
中产品系 MYL
甬优1851 Yongyou 1851	220.5	301.6	78.3	20.9	10.2
甬优1852 Yongyou 1852	193.5	309.1	80.4	22.7	10.2
甬优5854 Yongyou 5854	198.0	294.5	76.5	23.3	9.8
甬优1763 Yongyou 1763	183.0	317.5	78.4	23.4	10.1
甬优7753 Yongyou 7753	193.5	336.3	79.2	20.7	10.3
平均 Mean	197.7±13.5 c	311.8±18.2 ab	78.6±1.5 d	22.2±1.2 c	10.1±0.2 b
常规粳稻 CJR
武运粳30 Wuyunjing 30	289.5	159.2	89.3	25.9	10.0
宁粳3号 Ningjing 3	310.5	136.7	90.2	26.2	9.8
平均 Mean	300.0±12.8 a	148.0±14.6 c	89.8±0.9 a	26.1±0.3 a	9.9±0.1 c
杂交籼稻 HIR
新两优6380 Xinliangyou 6380	207.0	205.9	88.1	25.2	9.2
丰两优香1号 Fengliangyouxiang 1	202.5	217.7	89.1	24.9	9.4
平均 Mean	204.8±6.2 b	211.8±12.3 b	88.6±0.7 b	25.1±0.4 b	9.3±0.1 d
2014
高产品系 HYL
甬优2640 Yongyou 2640	214.5	285.2	85.8	22.4	11.5
甬优2638 Yongyou 2638	208.5	294.2	86.7	23.2	11.2
甬优1610 Yongyou 1610	237.0	262.7	84.7	22.1	10.8
甬优1640 Yongyou 1640	234.0	250.6	83.5	23.1	10.9
甬优1612 Yongyou 1612	225.0	268.4	84.3	23.4	10.9
平均 Mean	223.8±12.6 b	272.2±19.1 a	85.0±1.3 b	22.8±0.6 c	11.0±0.3 a
中产品系MYL
甬优1851 Yongyou 1851	234.0	253.1	82.1	21.7	10.0
甬优1852 Yongyou 1852	205.5	264.2	83.2	24.0	10.2
甬优5854 Yongyou 5854	216.0	243.7	83.5	24.1	10.1
甬优1763 Yongyou 1763	204.0	263.6	83.7	24.2	10.0
甬优7753 Yongyou 7753	210.0	294.1	82.5	21.8	10.3
平均 Mean	213.9±12.6 c	263.7±21.5 a	83.0±1.2 c	23.2±1.3 c	10.1±0.1 b
常规粳稻 CJR
武运粳30 Wuyunjing 30	301.5	144.3	90.5	26.8	9.9
宁粳3号 Ningjing 3	328.5	127.0	91.1	27.1	9.7
平均 Mean	315.0±17.3 a	135.7±12.3 c	90.8±0.3 a	27.0±0.2 a	9.8±0.1 c
杂交籼稻 HIR
新两优6380 Xinliangyou 6380	216.0	190.5	89.9	26.3	9.1
丰两优香1号 Fengliangyouxiang 1	219.0	194.8	90.5	25.7	9.3
平均 Mean	217.5±4.5 b	192.7±9.7 b	90.2±0.6 ab	26.0±0.4 b	9.2±0.1 d

年份、品种和类型 Year, variety and type	单位面积穗数 No. of panicles /(×10⁴ hm^-2)	每穗粒数 Spikelet number per panicle	结实率 Seed-setting rate/%	千粒重 1000-grain weight /g	实际产量 Actual yield /(t·hm^-2)
2013
高产品系HYL	204.0	328.7	82.9	21.5	11.7
甬优2638 Yongyou 2638	196.5	337.7	81.6	22.4	11.1
甬优1610 Yongyou 1610	223.5	311.9	82.6	21.3	10.9
甬优1640 Yongyou 1640	213.0	301.6	80.5	22.4	10.8
甬优1612 Yongyou 1612	207.0	323.5	83.4	22.1	11.1
平均 Mean	208.8±10.9 b	320.7±23.7 a	82.2±1.5 c	21.9±0.5 c	11.1±0.3 a
中产品系 MYL
甬优1851 Yongyou 1851	220.5	301.6	78.3	20.9	10.2
甬优1852 Yongyou 1852	193.5	309.1	80.4	22.7	10.2
甬优5854 Yongyou 5854	198.0	294.5	76.5	23.3	9.8
甬优1763 Yongyou 1763	183.0	317.5	78.4	23.4	10.1
甬优7753 Yongyou 7753	193.5	336.3	79.2	20.7	10.3
平均 Mean	197.7±13.5 c	311.8±18.2 ab	78.6±1.5 d	22.2±1.2 c	10.1±0.2 b
常规粳稻 CJR
武运粳30 Wuyunjing 30	289.5	159.2	89.3	25.9	10.0
宁粳3号 Ningjing 3	310.5	136.7	90.2	26.2	9.8
平均 Mean	300.0±12.8 a	148.0±14.6 c	89.8±0.9 a	26.1±0.3 a	9.9±0.1 c
杂交籼稻 HIR
新两优6380 Xinliangyou 6380	207.0	205.9	88.1	25.2	9.2
丰两优香1号 Fengliangyouxiang 1	202.5	217.7	89.1	24.9	9.4
平均 Mean	204.8±6.2 b	211.8±12.3 b	88.6±0.7 b	25.1±0.4 b	9.3±0.1 d
2014
高产品系 HYL
甬优2640 Yongyou 2640	214.5	285.2	85.8	22.4	11.5
甬优2638 Yongyou 2638	208.5	294.2	86.7	23.2	11.2
甬优1610 Yongyou 1610	237.0	262.7	84.7	22.1	10.8
甬优1640 Yongyou 1640	234.0	250.6	83.5	23.1	10.9
甬优1612 Yongyou 1612	225.0	268.4	84.3	23.4	10.9
平均 Mean	223.8±12.6 b	272.2±19.1 a	85.0±1.3 b	22.8±0.6 c	11.0±0.3 a
中产品系MYL
甬优1851 Yongyou 1851	234.0	253.1	82.1	21.7	10.0
甬优1852 Yongyou 1852	205.5	264.2	83.2	24.0	10.2
甬优5854 Yongyou 5854	216.0	243.7	83.5	24.1	10.1
甬优1763 Yongyou 1763	204.0	263.6	83.7	24.2	10.0
甬优7753 Yongyou 7753	210.0	294.1	82.5	21.8	10.3
平均 Mean	213.9±12.6 c	263.7±21.5 a	83.0±1.2 c	23.2±1.3 c	10.1±0.1 b
常规粳稻 CJR
武运粳30 Wuyunjing 30	301.5	144.3	90.5	26.8	9.9
宁粳3号 Ningjing 3	328.5	127.0	91.1	27.1	9.7
平均 Mean	315.0±17.3 a	135.7±12.3 c	90.8±0.3 a	27.0±0.2 a	9.8±0.1 c
杂交籼稻 HIR
新两优6380 Xinliangyou 6380	216.0	190.5	89.9	26.3	9.1
丰两优香1号 Fengliangyouxiang 1	219.0	194.8	90.5	25.7	9.3
平均 Mean	217.5±4.5 b	192.7±9.7 b	90.2±0.6 ab	26.0±0.4 b	9.2±0.1 d

品种与类型 Variety and type	穗长 PL/cm	单穗重 GWPP/g	着粒密度 GD	上部一次枝粳籽粒数 NGUP	上部二次枝粳籽粒数 NGUS	中部一次枝粳籽粒数 NGMP	中部二次枝粳籽粒数 NGMS	下部一次枝粳籽粒数 NGLP	下部二次枝粳籽粒数 NGLS
高产品系 HYL
甬优2640 Yongyou 2640	22.3	6.0	12.8	29.2	93.8	27.0	78.8	27.4	28.9
甬优2638 Yongyou 2638	22.0	5.9	13.4	34.9	78.0	36.2	78.4	35.7	30.9
甬优1610 Yongyou 1610	20.4	5.7	12.9	25.4	86.4	24.9	77.7	25.3	23.0
甬优1640 Yongyou 1640	19.9	5.8	12.6	29.7	63.8	33.1	66.8	30.4	26.7
甬优1612 Yongyou 1612	19.6	5.8	13.7	28.9	77.5	29.3	75.5	29.2	28.0
平均 Mean	20.8±1.3 c	5.8±0.2 a	13.1±0.6 a	29.6±3.5 a	79.9±10.9 a	30.1±5.0 a	75.4±7.3 a	29.6±3.7 a	27.5±3.2 ab
中产品系 MYL
甬优1851 Yongyou 1851	22.4	5.1	11.3	24.5	76.7	25.7	74.9	24.4	27.0
甬优1852 Yongyou 1852	21.7	5.3	12.2	29.6	69.7	32.5	73.1	32.1	27.2
甬优5854 Yongyou 5854	23.7	5.1	10.3	26.2	70.4	26.6	68.5	26.5	25.4
甬优1763 Yongyou 1763	22.5	5.3	11.7	27.0	82.8	25.0	78.0	25.4	25.4
甬优7753 Yongyou 7753	23.7	5.3	12.4	34.9	73.2	36.2	78.4	35.7	35.7
平均 Mean	22.8±1.2 b	5.2±0.2 b	11.6±0.8 b	28.5±3.9 a	74.6±5.5 a	29.2±4.8 a	74.6±4.2 a	28.8±4.7 a	28.2±4.2 a
常规粳稻CJR
武运粳30 Wuyunjing 30	16.6	3.5	8.7	23.4	13.0	23.7	33.5	23.7	27.0
宁粳3号 Ningjing 3	17.4	3.1	7.3	20.8	11.6	22.5	32.5	20.1	19.4
平均 Mean	17.0±1.1 d	3.3±0.4 d	8.0±0.8 c	22.1±1.6 b	12.3±1.0 c	23.1±1.1 b	33.0±0.8 c	21.9±2.3 b	23.2±4.5 b
杂交籼稻HIR
新两优6380 Xinliangyou 6380	23.2	4.5	8.2	21.1	40.8	22.5	55.4	23.6	27.1
丰两优香1号 Fengliangyouxiang 1	24.7	4.5	7.9	18.6	49.3	20.7	54.7	20.9	30.5
平均 Mean	23.9±1.1 a	4.5±.0.2 c	8.1±0.2 c	19.9±1.6 b	45.1±5.1 b	21.6±1.6 b	55.0±1.0 b	22.2±2.2 b	28.8±2.2 a