种植行距对斜排稀植甘蔗脱毒种苗生长和产量的影响
以新台糖22号二代脱毒种苗为试材,在播种量为45 000芽/hm2条件下,考察行距为1.3、1.4、1.5 m的斜排稀植模式甘蔗的生长、产量、含糖量变化.结果表明,斜排种植模式下甘蔗分蘖率、不同生育期株高、单茎重、每公顷蔗茎产量、折算每公顷含糖量均较对照下降,且随行距的增加下降幅度增大;其中1.5 m行距下斜排种植甘蔗成熟前株高与1.3 m行距、对照的差异达到显著水平.斜排种植模式下甘蔗成茎率、单位面积有效茎数、蔗茎直径、蔗茎锤度均较对照增加,且随行距增大增加幅度变大;除1.4、1.5 m行距下斜排种植模式甘蔗成茎率与对照间差异达到显著水平外,其余指标差异均未达到显著水平....
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| Published in | 广东农业科学 Vol. 42; no. 23; pp. 49 - 53 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国热带农业科学院热带生物技术研究所/中国热带农业科学院甘蔗研究中心/农业部热带作物生物学与遗传资源利用重点实验室,海南海口,571101
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1004-874X |
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| Summary: | 以新台糖22号二代脱毒种苗为试材,在播种量为45 000芽/hm2条件下,考察行距为1.3、1.4、1.5 m的斜排稀植模式甘蔗的生长、产量、含糖量变化.结果表明,斜排种植模式下甘蔗分蘖率、不同生育期株高、单茎重、每公顷蔗茎产量、折算每公顷含糖量均较对照下降,且随行距的增加下降幅度增大;其中1.5 m行距下斜排种植甘蔗成熟前株高与1.3 m行距、对照的差异达到显著水平.斜排种植模式下甘蔗成茎率、单位面积有效茎数、蔗茎直径、蔗茎锤度均较对照增加,且随行距增大增加幅度变大;除1.4、1.5 m行距下斜排种植模式甘蔗成茎率与对照间差异达到显著水平外,其余指标差异均未达到显著水平. |
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| Bibliography: | 44-1267/S At the seeding rate of 45 000 buds per hectare and with ROC 22 virus-free seedling as materials, the field experiment was conducted to evaluate the effects of row spacing （ 1.3 m, 1.4 m, 1.5 m ） on the sugarcane growth, cane yield and sugar content under oblique-planting model. The results indicated that the tillering rate, plant height, single stalk weight, cane yield and sugar content per hectare decreased with row spacing increasing and there was no significant difference among different treatments, but the sugarcane plant height of 1.5 m row spacing had significant difference with CK and 1.3 m row spacing. Sugarcane stalk-forming rate, stalk numbers per hectare, stalk diameter, internodes brixs of oblique-planting model increased compared with CK, and except the stem-forming rates of 1.4 m and 1.5 m row spacing, the other indexes had no significant difference. ZENG Jun, YANG Ben-peng, PENG Li-shun, CAO Zheng-ying, GAN Yi-mei, ZHANG Shu-zhen, CAI Wen-wei（ Institute of Tropical Bioscience and Biotec |
| ISSN: | 1004-874X |