Effects of Direct Replanting Seed Caneon Ratoon Sugarcane, a Case Study in Rongshui Miao Autonomous County, Guangxi in 2017

doi:10.3969/j.issn.1000-2561.2020.09.010

Abstract

Abstract:

In order to explore the use of ‘GF98-296’ to solve the problem of seedlingless ridges in sugarcane roots, the effects on the agronomic traits of the directly replanted cane seed of ‘GF98-296’ in the ‘GL05-136’ ratoon were studied, which would provide a scientific basis for popularization and application. Three treatments including ‘GF98-296’ seed cane directly replanted in ‘GL05-136’ ratoon (A), ‘GL05-136’ seed cane directly replanted in ‘GL05-136’ ratoon (B) and ‘GL05-136’ natural ratoon (CK) were designed in this experiment. ‘GF98-296’ seed cane replanted was carried out in the 2-4 leaf stage of ‘GL05-136’ ratoon. The agronomic traits of the treatments were investigated and the economic benefits were analyzed in harvest stage. The yield of treatment A was 79.55 t/hm ², which increased 19.29 t/hm²and 13.91 t/hm², or 32.01% and 21.18%, respectively, compared with that of CK and treatment B, and the difference was extremely significant. There was no significant difference in yield between treatment B and CK. Direct replanting treatments did not affect the growth, yield and sucrose content of ‘GL05-136’ ratoon. The sucrose content of ‘GF98-296’ in treatment A was almost the same as that of ‘GL05-136’ ratoon at the technology maturity stage. Economic benefit analysis showed that sugarcane growers could increase income of 5071.0 yuan/hm ² and sugar enterprises increase industrial output of 15 573.0 yuan/hm² using ‘GF98-296’ seed cane directly replanting ‘GL05-136’ ratoon. The study indicated that ‘GF98-296’ was suitable for directly replanting ‘GL05-136’ ratoon, and this new technology should be extensively demonstrated and popularized.

Key words: GF98-296, GL05-136 ratoon, directly replanting cane seed, demonstration and popularization

CLC Number:

S566.1

YOU Jianhua,LIANG Tian,FAN Baoning,WU Kaichao,TAN Hongwei,HUANG Rihong,JIA Zhaoxiong,CAI Yongming. Effects of Direct Replanting Seed Caneon Ratoon Sugarcane, a Case Study in Rongshui Miao Autonomous County, Guangxi in 2017[J]. Chinese Journal of Tropical Crops, 2020, 41(9): 1790-1796.

Figures/Tables 6

References 24

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处理Teatment	品种与植期 Variety and planting period	每公顷上茬蔗有效茎数Sugarcane stalk number in last crop per hectare	每公顷补种蔗芽数 Number of sugarcane buds replanted per hectare	每公顷蔗苗数 Sugarcane seedling number per hectare	出苗率 Emergence ratio/%	每公顷有效茎数 Sugarcane stalk number per hectare	成茎率 Stalk ratio/%	发株率 Tillering rate/%
A	GF98-296（新植）		25 455	18 773	73.75	17 075	90.96
A	宿根蔗	51 266				45 485		88.72
B	GL05-136（新植）		26 780	17 096	63.84	5 420	31.70
B	宿根蔗	52 074				46 415		89.13
CK	宿根蔗	51 873				45 990		88.66

处理Teatment	品种与植期 Variety and planting period	每公顷上茬蔗有效茎数Sugarcane stalk number in last crop per hectare	每公顷补种蔗芽数 Number of sugarcane buds replanted per hectare	每公顷蔗苗数 Sugarcane seedling number per hectare	出苗率 Emergence ratio/%	每公顷有效茎数 Sugarcane stalk number per hectare	成茎率 Stalk ratio/%	发株率 Tillering rate/%
A	GF98-296（新植）		25 455	18 773	73.75	17 075	90.96
A	宿根蔗	51 266				45 485		88.72
B	GL05-136（新植）		26 780	17 096	63.84	5 420	31.70
B	宿根蔗	52 074				46 415		89.13
CK	宿根蔗	51 873				45 990		88.66

处理 Teatment	品种 Variety	株高 Plant height/cm		生长量Amount of growth/cm
处理 Teatment	品种 Variety	5月21日	12月19日	生长量Amount of growth/cm
A	GF98-296（补种）	45^Aa	297^Aa	252^Aa
A	宿根蔗	48^Aa	289^ABab	241^Aab
B	GL05-136（补种）	28^Bb	218^Cc	190^Bc
B	宿根蔗	49^Aa	284^Bb	235^Ab
CK	宿根蔗	48^Aa	285^ABb	237^Ab

处理 Teatment	品种 Variety	株高 Plant height/cm		生长量Amount of growth/cm
处理 Teatment	品种 Variety	5月21日	12月19日	生长量Amount of growth/cm
A	GF98-296（补种）	45^Aa	297^Aa	252^Aa
A	宿根蔗	48^Aa	289^ABab	241^Aab
B	GL05-136（补种）	28^Bb	218^Cc	190^Bc
B	宿根蔗	49^Aa	284^Bb	235^Ab
CK	宿根蔗	48^Aa	285^ABb	237^Ab

处理Treatment	品种与植期 Variety andplanting period	每公顷有效茎数 Sugarcane stalk number per hectare	茎径Stem diameter /cm	茎长 Plant height /cm	产量 Production /(t·hm^-2)	单茎重 Single stem weight/kg	合计产量 Total yields/ (t·hm^-2)	比CK增减 Yields comparing with CK±/(t·hm^-2)	比CK增减百分比 Ratio comparing with CK/%
A	GF98-296（补种）	17 075^Bb	2.44^Bb	293^Aa	19.51^Bb	1.14^BCb	79.55^Aa	19.29	32.01
A	宿根蔗	45 485^Aa	2.58^Aa	289^Aab	60.04^Aa	1.32^Aa	79.55^Aa	19.29	32.01
B	GL05-136（补种）	5 420^Cc	2.22^Cc	218^Bc	5.30^Cc	0.98^Cc	65.64^Bb	5.38	8.93
B	宿根蔗	46 415^Aa	2.56^Aa	284^Ab	60.34^Aa	1.30^ABa	65.64^Bb	5.38	8.93
CK	宿根蔗	45 990^Aa	2.55^Aa	285^Ab	60.26^Aa	1.31^ABa	60.26^Bb	0.00