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长江下游地区不同水稻品种两种行距下的 生长发育和产量及品质特征
衣政伟,王晓兵
0
(江苏省农业科学院泰州农科所,泰州225300;泰州市植物保护植物检疫站,泰州225300)
摘要:
为研究种植行距对水稻生长发育和产量及品质的影响,选取15个不同类型水稻品种为试验材料进行不同行距种植处理,设置两种行距分别为30 cm和25 cm,株距均为13.3 cm,两种行距栽培密度分别为251 000 和301 000穴·hm-2,对水稻生长发育情况和产量及品质性状进行分析。结果显示:水稻品种间生长发育情况和产量及品质各指标间呈显著或极显著差异,行距30 cm处理可以显著增加水稻的株高、剑叶长和剑叶宽,提高水稻的结实率、每穗粒数,有利于产量的形成;行距25 cm处理单位面积内的有效穗数明显增大。丰粳3227、镇稻14、苏垦118、嘉优1号、嘉优3号和甬优2640等品种产量较高,经济性状突出,建议采用25 cm行距进行种植,甬优2640采用30 cm行距效果更好,南粳9108采用25 cm与30 cm均可。该研究为确定适宜栽培行距并筛选得出适宜泰州地区种植的优异水稻品种资源提供了一定的科学依据。
关键词:  水稻  行距  农艺性状  产量  品质
DOI:10.13610/j.cnki.1672-352x.20220325.019
基金项目:2020年市级财政专项资金项目(TNY202006)和2020年泰州市科技支撑(农业)项目(TN202009)共同资助。
The characteristics of growth, yield and quality of different rice varieties under two kinds of row spacings in the lower reaches of the Yangtze River
YI Zhengwei,WANG Xiaobing
(Taizhou Institute of Agricultural Science, Jiangsu Academy of Agricultural Sciences, Taizhou 225300;Taizhou Plant Protection and Plant Quarantine Station, Taizhou 225300)
Abstract:
In order to study the effects of planting row spacing on the growth, yield and quality of rice, 15 different types of rice varieties were selected as the experimental materials for planting with different row spacing. Two kinds of row spacing(30 cm and 25 cm)with the plant spacing of 13.3 cm and two planting densities(251 000 and 301 000 holes·hm-2)in the two kinds of row spacing were set to analyze the growth and development, yield and quality characters of rice. As results, there were significant or extremely significant differences in the growth and development conditions, yield and quality among rice varieties. The plant height, leaf length and leaf width of rice were significantly increased with the row spacing of 30 cm, and the seed setting rate and grain number per panicle were boosted to facilitate the formation of yield. The effective panicle number per unit area was significantly increased in 25 cm row spacing treatment. Fengjing3227, Zhendao14, Suken118, Jiayou1, Jiayou3 and Yongyou2640 have relatively high yields and prominent economic characters. It was suggested that 25 cm row spacing should be used for planting, 30 cm row spacing should be used for Yongyou2640, and both 25 cm and 30 cm can be used for Nanjing9108. In conclusion, the result can provide a scientific basis for determining suitable row spacing and screening out suitable excellent rice variety resources for Taizhou area.
Key words:  rice  row spacing  agronomic characters  yield  quality

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