Field Effect Evaluation of Healthy Seed Canes of Chewing Cane

doi:10.11924/j.issn.1000-6850.casb2021-0608

Abstract

Abstract:

Ratoon stunting disease (RSD) and sugarcane mosaic disease (SMD) are considered to be the main cause of the degeneration of chewing cane cultivars. It is an available method to control RSD and SMD through planting healthy seed canes. To evaluate the effect of healthy seed canes in field, a comparative trial of healthy seed canes and common seed canes of chewing cane was conducted on newly planted chewing canes in 2018, and molecular detection techniques were used to detect RSD pathogens and pathogenic virus of SMD, including sugarcane mosaic virus (SCMV), sorghum mosaic virus (SrMV) and sugarcane streak mosaic virus (SCSMV). The trial results indicated that the cane yield and sucrose content of healthy seed canes were 23.85% and 0.36 percentage points (absolute value, the same below) higher than those of common seed canes, respectively. The results also showed that the stalk length, internode length and single stem weight of healthy seed canes significantly increased by 20.6 cm, 2.47 cm and 0.65 kg, respectively, and the germination rate and the tillering rate were 24.6% and 18.4% higher than those of common seed canes, respectively, but the number of millable stalks per square meter was similar between the two. In addition, no RSD pathogen, SCMV, SrMV and SCSMV were detected in healthy seed canes. The study shows that the healthy seed canes of chewing cane have significant effect on increasing cane yield and improving cane quality.

Key words: chewing cane, ratoon stunting disease, sugarcane mosaic disease, healthy seed cane, molecular detection

CLC Number:

S435.661

CHEN Peihua, BAO Han, CHEN Peishou, SHEN Wankuan. Field Effect Evaluation of Healthy Seed Canes of Chewing Cane[J]. Chinese Agricultural Science Bulletin, 2022, 38(16): 1-5.

Figures/Tables 4

References 25

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处理	萌芽率/%	分蘖率/%	茎径/cm	茎长/cm	节间长度/cm	单茎重/kg	有效茎数/(条/m²)
T	85.7±1.6^**	95.2±3.1^*	4.23±0.18	273.7±2.2^**	11.40±1.6^*	3.32±0.18^*	4.80±0.11
CK	61.1±2.7	76.8±8.7	4.25±0.17	253.1±3.1	8.93±1.1	2.67±0.17	4.68±0.10
T与CK相比增加	24.6个百分点	18.4个百分点	-0.02 cm	20.6 cm	2.47 cm	0.65 kg	0.12条/m²

处理	萌芽率/%	分蘖率/%	茎径/cm	茎长/cm	节间长度/cm	单茎重/kg	有效茎数/(条/m²)
T	85.7±1.6^**	95.2±3.1^*	4.23±0.18	273.7±2.2^**	11.40±1.6^*	3.32±0.18^*	4.80±0.11
CK	61.1±2.7	76.8±8.7	4.25±0.17	253.1±3.1	8.93±1.1	2.67±0.17	4.68±0.10
T与CK相比增加	24.6个百分点	18.4个百分点	-0.02 cm	20.6 cm	2.47 cm	0.65 kg	0.12条/m²

处理	蔗茎产量(kg/m²)	田间锤度/%	甘蔗蔗糖分/%
T	15.29±0.46^**	18.2±1.1	11.04±0.40
CK	12.34±0.38	17.1±1.2	10.68±0.31
T与CK相比增加	23.85%	1.1个百分点	0.36个百分点

处理	蔗茎产量(kg/m²)	田间锤度/%	甘蔗蔗糖分/%
T	15.29±0.46^**	18.2±1.1	11.04±0.40
CK	12.34±0.38	17.1±1.2	10.68±0.31
T与CK相比增加	23.85%	1.1个百分点	0.36个百分点