机插栽培籼杂交稻的日产量及与株型的关系

doi:10.3864/j.issn.0578-1752.2019.06.003

Abstract

Abstract:

【Objective】To explore the feasibility of daily yield as a screening of medium-indica hybrid rice varieties by machine transplanted, systematically study the plant type characteristics of medium-indica hybrid rice varieties and their relationship with daily yield, and screen out high-yield varieties suitable for machine-planting in Sichuan, the theory and practice basis were provided for the high-yield cultivation and breeding of medium-indica hybrid rice.【Method】The 34 planting hybrid rice varieties were used as materials, and the data were collected by single-factor randomized block field experiment, and then the plant type and daily yield of the hybrid rice varieties under machine transplanting were studied by cluster analysis and analysis of variance analysis. 【Result】(1)The whole rice growth period, daily yield and yield of different varieties of machine-planting cultivation were different. The whole growth period of the tested rice varieties was 141-168 d, mainly 154-164 d, accounting for 82.4% of the tested varieties; The yield variation was 10 261.05 -13 099.34 kg·hm ^-2, of which Tianyouhuazhan accounted for the highest yield, Yixiang 3728 was the lowest, the yield in the range of 11 110.90-12 827.15 kg ·hm ^-2 accounted for 76.5% of the tested varieties; The daily yield of the tested varieties was mainly distributed in the range of 67-80 kg·hm ^-2·d ^-1, accounting for 82.4% of the tested varieties. The daily yields of Tianyouhuazhan, Fanyou 609 and Jingliangyou 534 were higher than 80 kg·hm ^-2·d ^-1, but only 8.8% of the tested varieties. (2) Cluster analysis showed that 29.4% of the total varieties were high-daily yield, 38.2% were middle-daily yield and 32.4% were low-daily yield. (3) Compared with the low-yield varieties, the high-yield varieties had higher grain per panicle and group spikes, and the effective panicles were sufficient, and the seed setting rate was higher, so the yield was higher. (4) There were significant differences in plant type characteristics of different varieties. Correlation analysis showed that plant height, stalk length, N3 internode length, N4 internode length, panicle length and daily yield were significantly or significantly negative correlation, grain density was significantly positively correlated with daily yield.【Conclusion】The daily yield could be used as one of the important indicators for screening of Chinese cultivars for hybrid rice cultivars, and the varieties with higher daily yields had stronger adaptability. Plant height and stalk length were suitable, and the third and fourth internode lengths were short, and high grain density was an important plant type characteristic of high daily yield varieties. In addition, the medium-indica hybrid rice varieties suitable for machine transplanting in Sichuan also had the basic characteristics of moderate growth period, more spikelets, higher group spikelets and higher seed setting rate. On the whole, Tianyouhuazhan, Fanyou 609, Jingliangyou 534, Y Liangyou 1, C Liangyouhuazhan and F You 498 were suitable for planting in Sichuan.

Key words: rice, mechanical transplanting, daily yield, plant type

HE LianHua,CHEN Duo,ZHANG Chi,TIAN QingLan,WU ZhenYuan,LI QiuPing,ZHONG XiaoYuan,DENG Fei,HU JianFeng,LING JunYing,REN WanJun. The Daily Yield of Medium Hybrid Rice in Machine Transplanting and Its Relationship with Plant Type[J].Scientia Agricultura Sinica, 2019, 52(6): 981-996.

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URL: https://www.chinaagrisci.com/EN/10.3864/j.issn.0578-1752.2019.06.003

https://www.chinaagrisci.com/EN/Y2019/V52/I6/981

Figures/Tables 9

Table 1

Fig. 1

Table 2

Yield, whole growth period and daily yield of indica hybrid rice cultivated by machine-transplanting"

品种 Variety	全生育期WGP (d)		产量Yield (kg·hm^-2)		日产量 Daily yield (kg·hm^-2·d^-1)
品种 Variety	2017	2018	2017	2018	2017	2018
天优华占Tianyouhuazhan	154	150	13099.34±443.99	12124.82±347.06	85.06±2.88	80.3±2.30
中优295 Zhongyou 295	155	151	11759.15±552.47	11943.04±389.37	75.87±3.56	78.57±2.56
蜀优217 Shuyou 217	164	158	12084.23±475.28	10984.07±636.25	73.68±2.90	69.08±4.00
花香优1618Huaxiangyou 1618	164	158	12411.55±260.63	11000.27±547.23	75.68±1.59	69.18±3.44
F优498 Fyou 498	155	151	11516.95±538.43	11649.86±382.77	74.30±3.47	76.64±2.52
吉优9号 Jiyou 9	141	—	10731.90±165.00	—	76.11±1.17	—
川优8377 Chuanyou 8377	164	156	11969.80±713.96	10672.45±562.12	72.99±4.35	67.98±3.58
绿优4923 Lvyou 4923	159	154	11514.65±363.98	10482.76±775.70	72.42±2.29	67.63±5.00
中9优2号 Zhong 9 you 2	155	151	10861.80±329.85	10852.76±321.08	70.08±2.13	71.4±2.11
渝优7109 Yuyou 7109	166	161	10416.00±1.20	10233.42±303.76	62.75±0.01	63.17±1.88
渝香203 Yuxiang 203	166	161	10930.95±30.10	10083.56±385.03	65.85±0.18	62.24±2.38
丰优香占 Fengyouxiangzhan	164	—	11442.55±65.67	—	69.77±0.40	—
德优4923 Deyou 4923	160	—	11110.90±82.43	—	69.44±0.52	—
宜香优2115 Yixiangyou 2115	164	156	11221.95±184.95	10806.12±299.79	68.43±1.13	68.83±1.91
宜香4245 Yixiang 4245	164	157	11139.30±412.91	10118.88±659.70	67.92±2.52	64.04±4.18
旌优127 Jingyou 127	151	148	10312.10±579.08	9085.59±285.43	68.29±3.83	60.98±1.92
川优6203 Chuanyou 6203	164	158	11410.55±619.34	8847.48±475.16	69.58±3.78	55.64±2.99
宜香3728 Yixiang 3728	167	—	10261.05±76.80	—	61.44±0.46	—
繁优609 Fanyou 609	147	146	12538.15±357.15	11703.51±129.52	85.29±2.43	80.16±0.89
宜香优1108 Yixiangyou 1108	164	—	12447.80±444.83	—	75.90±2.71	—
内5优39 Nei 5 you 39	160	155	12465.55±288.89	10832.29±53.05	77.91±1.81	69.44±0.34
蓉18优2348 Rong 18 you 2348	158	—	12473.95±32.18	—	78.95±0.20	—
宜香优7633 Yixiangyou 7633	168	—	12742.45±670.11	—	75.85±3.99	—
宜香优2168 Yixiangyou 2168	155	—	11455.25±487.09	—	73.90±3.14	—
德优4727 Deyou 4727	160	—	11859.60±128.55	—	74.12±0.80	—
两优2161 Liangyou 2161	158	—	11698.95±445.44	—	74.04±2.82	—
晶两优华占 Jiangliangyouhuazhan	160	—	12026.00±208.07	—	75.16±1.30	—
晶两优534 Jingliangyou 534	160	155	12818.25±635.63	11813.38±329.10	80.11±3.97	75.73±2.11
晶两优1377 Jiangliangyou 1377	162	—	12051.70±583.01	—	74.39±3.60	—
隆两优1206 Longliangyou 1206	161	—	11487.85±59.33	—	71.35±0.37	—
隆两优1146 Longliangyou 1146	158	154	10892.20±738.15	10779.89±481.43	68.94±4.67	69.55±3.11
Y两优1号 Y liangyou 1	164	157	12827.15±698.75	11973.14±488.74	78.21±4.26	75.78±3.09
Y两优585 Y liangyou 585	161	—	11372.50±413.63	—	70.64±2.57	—
C两优华占 C liangyouhuazhan	158	154	12534.20±44.18	12137.81±635.06	79.33±0.28	78.31±4.10
平均值Mean	159.7	154.6	11702.54±769.56	10906.26±940.67	73.35±5.38	70.23±6.90

Table 2

Fig. 2

Table 3

Differences in yield components of different types of indica hybrid rice cultivated by machine-transplanting"

类型 Type	品种 Variety	有效穗 Effective panicle (×10⁴·hm^-2）	每穗粒数 Spikelets per panicle	群体颖花量 Group spikelets (×10⁶·hm^-2）	千粒重 1000-grain weight (g)	结实率 Seed setting rate (%)
高日产量 High daily yield	天优华占Tianyouhuazhan	322.9±3.3	173.2±5.9	559.2±15.2	26.2±0.6	93.2±0.2
	中优295 Zhongyou 295	239.4±0.5	245.5±14.0	587.7±32.9	28.4±0.6	77.1±0.3
	繁优609 Fanyou 609	267.5±75	181.9±4.2	486.3±7.3	29.7±0.9	87.7±1.6
	宜香优1108 Yixiangyou 1108	274.7±0.5	176.0±18.2	483.3±49.3	30.7±0.1	85.5±1.7
	内5优39 Nei 5 you 39	281.5±17.1	165.9±5.4	467.3±36.7	32.0±0.3	88.6±0.4
	蓉18优2348 Rong 18 you 2348	248.5±1.5	196.3±3.4	487.8±6.9	31.5±0.5	84.8±4.7
	吉优9号 Jiyou 9	261.4±1.1	188.6±0.8	493.1±3.6	29.4±0.5	88.0±2.1
	晶两优534 Jingliangyou 534	336.4±3.0	196.0±0.4	659.2±4.8	23.1±0.1	93.2±1.5
	C两优华占 C liangyouhuazhan	334.3±6.7	212.9±4.1	711.7±21.0	23.6±0.2	84.6±1.7
	Y两优1号 Y liangyou 1	295.0±1.5	185.1±4.1	546.0±15.0	27.9±0.4	87.0±1.3
	均值Mean	286.1±34.9ab	192.1±23.1a	548.2±83.0a	28.2±3.1c	87.0±4.6a
中日产量 Medium daily yield	蜀优217 Shuyou 217	273.5±2.3	165.6±4.0	453.1±13.3	30.4±0.7	90.3±2.1
	花香优1618Huaxiangyou 1618	256.8±4.8	166.3±0.3	427.2±7.2	33.6±0.6	78.4±0.4
	F优498 Fyou 498	241.1±1.3	184.2±3.0	444.1±7.7	32.1±0.5	92.1±0.6
	川优8377 Chuanyou 8377	287.1±0.8	153.2±4.7	440.0±14.7	30.5±0.1	85.5±1.0
	宜香优7633 Yixiangyou 7633	297.5±16.7	184.6±2.6	549.1±28.3	29.7±0.3	81.7±0.2
	宜香优2168 Yixiangyou 2168	329.2±1.5	111.7±0.2	367.9±2.1	33.4±0.3	84.8±4.7
	德优4727 Deyou 4727	261.4±4.8	168.6±0.9	440.7±9.5	34.5±0.5	90.6±0.4
	绿优4923 Lvyou 4923	285.9±10.2	158.4±5.5	452.3±2.5	31.4±0.9	80.4±0.5
	两优2161 Liangyou 2161	281.1±0.8	172.5±3.8	484.7±10.1	30.0±0.2	90.4±0.7
	Y两优585 Y liangyou 585	300.3±0.8	187.1±3.7	562.0±9.7	26.5±0.2	88.6±0.2
	隆两优1206 Longliangyou 1206	312.9±5.8	175.7±1.9	549.8±15.9	26.1±0.5	88.5±2.4
	晶两优1377 Jiangliangyou 1377	299.0±17.0	236.1±0.3	705.9±39.2	23.4±0.3	84.4±0.5
	晶两优华占 Jiangliangyouhuazhan	338.1±0.2	210.0±2.4	710.1±8.3	22.6±0.5	86.2±1.6
	均值Mean	289.5±27.8a	174.9±29.2b	506.7±105.1b	29.5±3.8b	86.3±4.3a
低日产量 Low daily yield	中9优2号 Zhong 9 you 2	285.9±3.0	173.4±2.1	495.7±9.8	28.0±0.6	86.4±1.3
	渝优7109 Yuyou 7109	276.0±4.3	220.5±9.2	608.7±31.0	25.3±0.5	80.0±2.1
	渝香203 Yuxiang 203	276.3±0.5	169.0±9.1	466.8±24.8	30.7±0.7	87.0±0.9
	丰优香占 Fengyouxiangzhan	240.2±3.3	208.6±5.3	501.0±11.1	28.8±0.3	86.7±2.7
	德优4923 Deyou 4923	275.8±2.6	179.9±4.1	496.0±6.8	33.4±0.3	74.2±1.3
	宜香优2115 Yixiangyou 2115	259.1±3.3	140.4±5.3	363.9±16.2	36.0±0.4	90.1±1.2
	宜香4245 Yixiang 4245	271.4±2.8	202.0±7.8	548.2±24.2	29.5±0.2	83.9±2.5
	旌优127 Jingyou 127	337.3±4.5	126.5±3.9	426.9±18.8	29.4±0.4	90.2±1.9
	川优6203 Chuanyou 6203	277.3±3.3	140.9±1.5	390.8±4.0	30.5±0.2	87.5±2.2
	宜香3728 Yixiang 3728	279.6±2.6	154.2±3.0	431.4±12.2	35.6±0.3	84.9±4.1
	隆两优1146 Longliangyou 1146	334.7±19.1	135.3±1.6	452.8±22.0	33.6±0.6	92.6±1.4
	均值Mean	283.0±28.9b	168.3±31.9c	471.1±69.9c	31.0±3.3a	85.8±5.1a
F值	F-value	5.0	230.1**	68.7**	805.1**	3.4

Table 3

Table 4

Characteristics of stem types in different types of indica hybrid rice cultivated by machine-transplanting"

类型 Type	品种 Variety	株高 Plant height (cm)	秆长 Culm length (cm)	节间长Internode length (cm)				节间粗Internode diameter (mm)
类型 Type	品种 Variety	株高 Plant height (cm)	秆长 Culm length (cm)	N1	N2	N3	N4	N1	N2	N3	N4
高日产量 High daily yield	天优华占 Tianyouhuazhan	101.7±3.3	78.5±3.8	3.1±0.2	6.5±0.5	12.4±1.2	16.0±0.3	5.76±0.06	5.14±0.14	4.78±0.16	4.27±0.09
	中优295 Zhongyou 295	123.0±4.2	93.6±4.9	4.4±0.1	8.2±0.1	13.9±0.2	15.6±0.1	7.13±0.05	6.15±0.08	5.45±0.12	4.74±0.17
	繁优609 Fanyou 609	104.3±1.9	80.6±1.9	4.3±0.1	8.6±0.8	11.7±1.6	11.1±0.7	7.14±0.25	6.12±0.21	5.26±0.22	4.44±0.23
	宜香优1108 Yixiangyou 1108	129.2±10.1	99.8±9.6	3.9±0.3	7.6±0.5	14.6±1.7	20.6±3.8	6.85±0.36	6.05±0.23	5.56±0.18	4.94±0.14
	内5优39 Nei 5 you 39	112.0±1.4	83.3±1.5	3.5±0.1	7.4±0.3	12.9±0.5	15.2±0.4	6.30±0.38	5.64±0.44	5.27±0.43	4.82±0.36
	蓉18优2348 Rong 18 you 2348	125.6±1.9	96.0±8.8	4.3±0.3	8.4±0.2	13.0±0.1	15.9±1.4	7.58±0.49	6.60±0.24	5.65±0.02	5.00±0.05
	吉优9号 Jiyou 9	102.7±1.1	75.2±1.5	5.0±0.6	8.2±0.6	9.6±1.6	7.2±1.8	6.94±0.12	5.89±0.14	5.01±0.22	4.70±0.02
	晶两优534 Jingliangyou 534	106.6±6.2	82.7±1.7	3.3±0.2	7.1±0.5	13.1±0.9	17.6±0.9	6.02±0.16	5.42±0.23	5.20±0.29	4.77±0.30
	C两优华占 C liangyouhuazhan	113.5±1.4	88.0±1.4	2.9±0.2	7.1±1.2	14.6±1.4	20.3±0.9	5.52±0.16	5.06±0.10	4.64±0.09	4.41±0.26
	Y两优1号 Y liangyou 1	106.5±2.8	78.7±2.2	3.6±0.5	11.0±0.8	17.2±1.3	13.8±1.6	5.55±0.12	5.37±0.16	5.02±0.17	4.23±0.14
	均值 Mean	112.5±10.1c	85.6±8.3c	3.8±0.7a	8.0±1.2a	13.3±2.0c	15.3±4.0b	6.48±0.74a	5.74±0.50b	5.19±0.33b	4.63±0.28a
中日产量 Medium daily yield	蜀优217 Shuyou 217	130.3±2.8	102.1±2.1	3.5±0.4	7.8±1.0	13.3±1.4	17.7±0.5	6.99±0.57	6.25±0.54	5.54±0.38	4.78±0.35
	花香优1618 Huaxiangyou 1618	129.7±2.0	100.6±1.9	3.5±0.1	8.0±0.8	14.2±0.8	19.4±0.8	6.77±0.35	5.92±0.11	5.37±0.12	4.76±0.23
	F优498 Fyou 498	121.8±0.4	94.9±1.0	3.7±0.4	6.3±0.3	12.3±1.5	16.4±0.2	7.26±0.36	6.57±0.45	5.74±0.27	5.13±0.30
	川优8377 Chuanyou 8377	123.9±2.3	97.6±1.8	3.9±0.4	8.0±0.7	14.7±0.7	19.3±0.8	6.99±0.18	6.25±0.14	5.70±0.22	4.79±0.31
	宜香优7633 Yixiangyou 7633	126.3±6.6	96.2±6.5	3.6±0.8	8.7±0.8	16.6±1.4	19.9±1.1	6.47±0.21	5.95±0.19	5.56±0.26	4.88±0.55
	宜香优2168 Yixiangyou 2168	107.0±1.8	79.7±2.0	3.4±0.2	7.6±1.0	13.5±0.2	14.2±0.2	6.47±0.39	6.05±0.72	5.08±0.27	4.24±0.25
	德优4727 Deyou 4727	123.1±10.6	101.2±4.3	3.9±0.2	7.6±0.7	12.7±0.7	17.0±0.7	7.05±0.56	6.24±0.57	5.63±0.48	5.19±0.53
	绿优4923 Lvyou 4923	115.5±3.0	90.5±2.9	4.2±0.2	9.2±1.1	13.0±0.7	14.1±1.1	6.86±0.05	6.20±0.13	5.52±0.13	4.63±0.10
	两优2161 Liangyou 2161	118.0±5.0	87.3±0.1	3.3±0.1	8.5±0.5	13.5±0.6	14.7±1.1	6.36±0.13	5.70±0.14	5.16±0.15	4.51±0.05
	Y两优585 Y liangyou 585	113.9±2.9	85.2±3.0	3.3±0.3	8.7±0.4	15.3±0.3	14.3±1.4	5.83±0.35	5.30±0.20	4.99±0.26	4.81±0.93
	隆两优1206 Longliangyou 1206	113.4±1.4	89.5±1.4	3.4±0.1	9.2±0.6	16.2±1.2	19.5±3.0	5.76±0.33	5.31±0.23	4.94±0.16	4.70±0.13
	晶两优1377 Jiangliangyou 1377	101.4±2.5	74.1±2.5	2.9±0.1	6.2±0.1	11.6±1.2	15.7±1.2	5.92±0.12	5.51±0.22	5.18±0.20	4.52±0.20
	晶两优华占 Jiangliangyouhuazhan	106.8±2.3	79.9±2.7	3.2±0.1	6.7±0.2	12.8±0.3	16.7±0.3	5.79±0.17	5.25±0.09	5.00±0.09	4.74±0.08
	均值 Mean	117.8±9.1b	90.7±9.1b	3.5±0.4a	7.9±1.0a	13.8±1.5b	16.8±2.2ab	6.50±0.53a	5.86±0.42b	5.34±0.29a	4.74±0.25a
N1	N2	N3	N4	N1	N2	N3	N4
低日产量 Low daily yield	中9优2号 Zhong 9 you 2	118.1±4.4	90.5±4.4	4.2±0.2	9.1±0.7	14.3±1.3	14.2±2.0	6.51±0.26	6.20±0.13	5.13±0.28	4.36±0.31
	渝优7109 Yuyou 7109	126.8±3.0	98.4±3.0	3.8±0.3	7.3±0.3	14.9±0.9	19.1±1.0	6.88±0.30	5.86±0.24	5.28±0.25	4.84±0.11
	渝香203 Yuxiang 203	127.3±2.8	96.5±3.0	3.0±0.2	7.6±0.6	15.1±0.6	18.6±0.6	5.81±0.27	5.96±0.31	5.13±0.50	4.64±0.37
	丰优香占 Fengyouxiangzhan	128.1±4.9	101.4±4.9	3.6±0.1	7.0±0.5	14.2±1.0	19.6±0.4	7.00±0.16	5.80±0.89	5.77±0.07	5.18±0.07
	德优4923 Deyou 4923	126.9±4.6	99.9±5.0	3.6±0.2	7.7±0.2	13.5±0.2	17.4±1.6	6.76±0.23	6.38±0.11	5.52±0.28	5.11±0.24
	宜香优2115 Yixiangyou 2115	129.3±3.8	99.1±3.2	3.6±0.1	7.0±0.5	12.7±0.7	17.6±0.1	6.88±0.25	6.05±0.30	5.72±0.20	5.05±0.17
	宜香4245 Yixiang 4245	122.6±5.8	92.5±5.2	3.4±0.2	8.1±1.4	15.2±1.2	18.7±3.4	6.49±0.31	6.26±0.32	5.74±0.25	5.11±0.45
	旌优127 Jingyou 127	106.5±4.9	81.9±5.4	4.2±0.5	8.7±1.0	12.3±1.0	14.8±1.0	6.42±0.16	5.92±0.30	4.94±0.11	4.30±0.14
	川优6203 Chuanyou 6203	124.9±5.3	96.0±6.3	3.9±0.5	8.9±0.3	14.3±0.5	19.9±3.2	6.82±0.02	5.74±0.07	5.41±0.15	4.71±0.03
	宜香3728 Yixiang 3728	128.6±2.8	100.1±1.7	3.9±0.4	8.4±1.8	15.0±1.5	19.8±0.5	6.64±0.13	6.17±0.11	5.48±0.23	4.86±0.41
	隆两优1146 Longliangyou 1146	109.9±1.2	86.1±1.2	3.5±0.4	8.8±0.3	15.0±0.2	17.0±0.3	5.96±0.11	6.08±0.28	4.89±0.07	4.22±0.07
	均值 Mean	122.6±7.9a	94.8±6.3a	3.7±0.3a	8.1±0.8a	14.2±1.0a	17.9±1.9a	6.56±0.37a	6.04±0.20a	5.41±0.32a	4.76±0.35a

Table 4

Table 5

Characteristics of different types of leaf types of indica hybrid rice cultivated by machine-transplanting"

类型 Type	品种 Variety	剑叶Flag leaf		倒二叶2nd leaf		倒三叶3rd leaf
类型 Type	品种 Variety	长Length (cm)	宽Width (cm)	长Length (cm)	宽Width (cm)	长Length (cm)	宽Width (cm)
高日产量 High daily yield	天优华占Tianyouhuazhan	28.6±1.3	2.0±0.03	44.7±1.7	1.7±0.05	52.4±2.5	1.5±0.05
	中优295 Zhongyou 295	40.4±3.9	2.3±0.04	52.9±1.2	1.9±0.02	61.4±0.9	1.8±0.12
	繁优609 Fanyou 609	32.9±0.6	2.3±0.02	44.5±3.5	2.0±0.03	54.2±1.6	1.8±0.06
	宜香优1108 Yixiangyou 1108	36.8±3.8	2.3±0.11	52.6±1.3	2.0±0.05	60.8±4.3	1.9±0.08
	内5优39 Nei 5 you 39	33.0±0.9	2.2±0.02	46.8±1.4	2.0±0.04	53.5±1.1	1.9±0.03
	蓉18优2348 Rong 18 you 2348	36.3±0.5	2.2±0.10	52.0±2.3	2.0±0.12	61.8±4.6	1.9±0.12
	吉优9号 Jiyou 9	39.8±3.4	1.9±0.09	50.5±4.4	1.6±0.08	55.4±0.3	1.4±0.03
	晶两优534 Jingliangyou 534	28.8±1.3	2.0±0.02	41.4±0.5	1.7±0.02	49.4±0.9	1.6±0.01
	C两优华占 C liangyouhuazhan	37.1±0.7	1.9±0.04	49.4±1.4	1.6±0.06	53.7±2.7	1.7±0.12
	Y两优1号 Y liangyou 1	29.8±1.2	2.1±0.05	41.5±0.4	1.8±0.05	53.5±2.1	1.6±0.03
	均值Mean	34.4±4.4a	2.1±0.18a	47.6±4.5a	1.80±0.15a	55.6±4.2a	1.7±0.17a
中日产量 Medium daily yield	蜀优217 Shuyou 217	38.0±0.8	2.2±0.06	50.8±1.1	2.0±0.06	60.5±2.1	1.9±0.04
	花香优1618Huaxiangyou 1618	32.9±0.3	2.2±0.07	50.6±3.3	2.0±0.06	59.1±2.9	1.9±0.05
	F优498 Fyou 498	39.7±0.1	2.3±0.07	54.8±2.5	2.0±0.06	61.6±3.5	1.8±0.08
	川优8377 Chuanyou 8377	37.2±2.2	2.1±0.10	51.0±5.9	1.8±0.09	59.5±5.5	1.7±0.09
	宜香优7633 Yixiangyou 7633	31.1±1.1	2.0±0.03	49.4±1.1	1.8±0.04	56.3±2.1	1.7±0.10
	宜香优2168 Yixiangyou 2168	30.2±2.0	2.0±0.08	45.8±0.6	1.9±0.03	53.8±1.6	1.8±0.08
	德优4727 Deyou 4727	31.1±0.4	2.2±0.13	45.1±3.1	2.0±0.06	53.2±3.3	1.9±0.08
	绿优4923 Lvyou 4923	33.5±0.4	2.2±0.03	48.8±2.5	1.9±0.06	57.4±0.8	1.8±0.09
	两优2161 Liangyou 2161	36.2±2.6	2.1±0.12	50.9±1.5	2.0±0.03	62.7±1.2	1.8±0.02
	Y两优585 Y liangyou 585	37.5±1.1	2.1±0.07	51.1±1.4	1.8±0.12	59.8±1.8	1.6±0.05
	隆两优1206 Longliangyou 1206	35.1±1.6	2.0±0.02	48.4±0.8	1.8±0.30	56.0±1.6	1.4±0.04
	晶两优1377 Jiangliangyou 1377	30.6±1.9	1.9±0.07	40.5±2.0	1.7±0.09	45.9±2.4	1.5±0.09
	晶两优华占 Jiangliangyouhuazhan	32.0±1.0	1.9±0.03	44.0±0.6	1.7±0.04	50.8±1.6	1.5±0.05
	均值Mean	34.2±3.2a	2.1±0.13a	48.6±3.8a	1.8±0.11a	56.7±4.7a	1.7±0.15a
低日产量 Low daily yield	中9优2号 Zhong 9 you 2	39.4±1.0	2.0±0.06	49.6±7.8	1.7±0.04	61.4±3.2	1.6±0.01
	渝优7109 Yuyou 7109	35.2±0.8	2.1±0.04	51.4±0.7	1.9±0.03	57.5±1.0	1.7±0.08
	渝香203 Yuxiang 203	34.0±0.6	2.1±0.09	50.3±0.5	1.9±0.07	55.7±2.2	1.8±0.06
	丰优香占 Fengyouxiangzhan	36.8±1.0	2.3±0.06	52.8±2.4	2.1±0.07	64.5±2.6	1.9±0.07
	德优4923 Deyou 4923	34.9±2.2	2.2±0.09	48.0±0.8	1.9±0.03	55.5±0.5	1.8±0.07
	宜香优2115 Yixiangyou 2115	36.4±0.1	2.2±0.06	53.9±1.8	2.0±0.03	61.5±0.5	1.9±0.02
	宜香4245 Yixiang 4245	33.7±1.8	2.2±0.07	48.9±1.0	2.0±0.02	55.4±1.1	1.8±0.07
	旌优127 Jingyou 127	29.1±1.9	2.1±0.02	41.7±1.5	1.8±0.06	51.2±3.1	1.7±0.12
	川优6203 Chuanyou 6203	33.3±2.8	2.2±0.06	48.9±1.3	1.9±0.03	57.8±2.6	1.8±0.12
	宜香3728 Yixiang 3728	31.3±1.3	2.0±0.05	46.4±0.6	1.9±0.06	55.7±3.0	1.8±0.08
	隆两优1146 Longliangyou 1146	32.5±0.5	1.9±0.02	42.4±1.1	1.8±0.02	52.8±1.5	1.7±0.07
	均值Maen	34.2±2.8a	2.1±0.12a	48.6±3.8a	1.9±0.09a	57.2±3.9a	1.8±0.07a

Table 5

Table 6

Characteristics of panicle types of indica hybrid rice cultivated by machine-transplanting"

类型 Type	品种 Variety	穗长 Panicle length (cm)	单穗重 Single spike weight (g)	着粒密度 Particle density ( particle /cm)
高日产量 High daily yield	天优华占Tianyouhuazhan	23.2±0.5	4.5±0.3	6.8±0.03
	中优295 Zhongyou 295	29.4±0.7	5.3±0.3	6.5±0.22
	繁优609 Fanyou 609	23.7±0.2	5.2±0.2	6.6±0.35
	宜香优1108 Yixiangyou 1108	29.3±0.9	5.1±0.5	5.1±0.28
	内5优39 Nei 5 you 39	28.8±0.1	4.9±0.5	4.8±0.13
	蓉18优2348 Rong 18 you 2348	25.7±1.8	5.8±0.4	6.5±0.30
	吉优9号 Jiyou 9	27.5±0.6	5.2±0.1	5.7±0.03
	晶两优534 Jingliangyou 534	27.7±0.8	4.7±0.2	6.7±0.01
	C两优华占 C liangyouhuazhan	25.5±0.7	4.5±0.2	6.9±0.07
	Y两优1号 Y liangyou 1	27.8±1.1	4.9±0.1	5.8±0.11
	均值Mean	26.9±2.2b	5.0±0.4a	6.1±0.72a
中日产量 Medium daily yield	蜀优217 Shuyou 217	28.1±0.7	5.0±0.2	5.3±0.27
	花香优1618Huaxiangyou 1618	29.1±0.1	5.2±0.3	4.8±0.29
	F优498 Fyou 498	27.3±0.5	5.9±0.4	5.9±0.14
	川优8377 Chuanyou 8377	26.3±0.7	4.6±0.4	5.2±0.34
	宜香优7633 Yixiangyou 7633	30.1±0.1	5.2±0.2	5.2±0.28
	宜香优2168 Yixiangyou 2168	27.4±0.6	3.7±0.3	3.6±0.26
	德优4727 Deyou 4727	27.3±1.0	5.5±0.2	5.4±0.16
	绿优4923 Lvyou 4923	25.1±0.6	4.3±0.1	4.8±0.03
	两优2161 Liangyou 2161	27.3±1.2	5.1±0.1	5.7±0.16
	Y两优585 Y liangyou 585	28.7±0.6	4.8±0.2	5.7±0.02
	隆两优1206 Longliangyou 1206	23.9±0.1	4.5±0.1	6.3±0.06
	晶两优1377 Jiangliangyou 1377	27.3±0.1	4.6±0.4	7.3±0.05
	晶两优华占 Jiangliangyouhuazhan	26.9±0.6	4.5±0.2	6.7±0.17
	均值Mean	27.3±1.6a	4.8±0.6b	5.5±0.93b
低日产量 Low daily yield	中9优2号 Zhong 9 you 2	27.5±0.1	4.7±0.1	5.5±0.02
	渝优7109 Yuyou 7109	28.4±0.1	5.1±0.1	6.2±0.12
	渝香203 Yuxiang 203	30.8±0.3	5.5±0.1	5.1±0.30
	丰优香占 Fengyouxiangzhan	26.8±0.2	5.5±0.4	6.8±0.04
	德优4923 Deyou 4923	26.9±0.6	4.7±0.3	5.4±0.28
	宜香优2115 Yixiangyou 2115	30.2±1.3	5.0±0.2	4.4±0.09
	宜香4245 Yixiang 4245	30.1±0.6	5.6±0.1	5.6±0.06
	旌优127 Jingyou 127	24.6±0.9	3.7±0.1	4.7±0.09
	川优6203 Chuangyou 6203	28.9±1.6	4.2±0.1	4.5±0.25
	宜香3728 Yixiang 3728	28.6±1.1	4.5±0.1	4.4±0.28
	隆两优1146 Longliangyou 1146	23.7±0.1	4.4±0.2	5.2±0.04
	均值Mean	27.9±2.3a	4.8±0.6b	5.3±0.77c

Table 6

Table 7

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指标Index	拟合方程Fitted equation	相关系数Correlation coefficient, r	P
株高 Plant height	y = 0.01x²- 2.6016x + 240.09	-0.49 **	<0.01
秆长 Culm length	y = - 0.2867x + 99.297	-0.46 **	<0.01
N3节间长 Third internode length	y = 0.2556x² - 8.1573x + 136.66	0.33 *	<0.05
N4节间长 Fourth internode length	y = -0.6592x + 84.38	0.35 *	<0.05
剑叶长 Flag leaf length	y = 0.1561x² - 10.942x + 263.26	-0.13	>0.05
倒二叶长 2nd leaf length	y = -0.2919x + 87.443	-0.21	>0.05
倒三叶长 3rd leaf length	y = -0.2561x + 87.821	-0.20	>0.05
剑叶宽 Flag leaf width	y = 134.86x² - 565.99x + 664.59	0.01	>0.05
倒二叶宽 2nd leaf width	y=133.81x² - 501.39x + 541.06	-0.22	>0.05
倒三叶宽 3rd leaf width	y = -6.6356x + 84.832	-0.18	>0.05
单穗重 Single spike weight	y = 1.306x + 66.962	0.13	>0.05
着粒密度 Particle density	y = 2.6768x + 58.308	0.44 **	<0.01

The Daily Yield of Medium Hybrid Rice in Machine Transplanting and Its Relationship with Plant Type

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