| 黔北地区优质稻品种的筛选及丰产性分析 |
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| 引用本文： | 李祖军.黔北地区优质稻品种的筛选及丰产性分析[J].现代农业科技,2023(19). |
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| 作者姓名： | 李祖军 |
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| 作者单位： | 贵州省水稻研究所 |
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| 基金项目： | 黔科中引地[2019]4001；贵州省后补助计划项目(黔科合平台人才[2018]5263号)；贵州省现代农业产业技术体系建设(GZCYTX2020-0602),贵州省科技计划项目(黔科合支撑[2022]重点026,黔科合支撑[2019] 2305号,黔科合基础-ZK[2021]一般 124),黔水稻所青年基金[2021]001号,黔水稻所青年基金[2021]012号。 |
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| 摘 要： | 摘要：为筛选出适宜黔北地区种植的优质稻品种，本研究以9个优质稻品种为试验材料，比较分析参试品种的生育期、产量构成、干物质积累及物质转化速率。结果表明，不同品种的全生育期在150d～156d之间，播抽历期在116d～122d之间，以川优2115生育期最长（156d），旌3优348生育期最短（150d）。以产量为指标进行聚类分析将参试品种分为高产、中产和低产3个类型，其中高产类型水稻品种是川优6203、川优2115、鹏优1269，中产类型品种是宜香优2115、荃优鄂丰丝苗、旌3优348，低产类型品种是大粒香、盛韵香禾、滇屯502。高产类型品种产量分别比中、低产品种类型增产41.84kg/667m2和206.98kg/667m2。对不同产量水平的生育期、产量构成和群体质量进行分析，川优6203、川优2115、鹏优1269具有有效穗多、结实率高、生育后期干物质积累量大、叶和茎鞘物质转化率高等特点。该试验结果可为黔北地区优质稻品种选育和遗传改良提供参考。
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| 收稿时间： | 2023/1/29 0:00:00 |
| 修稿时间： | 2023/1/29 0:00:00 |
Screening and High Yield Analysis of High Quality Rice Varieties in Northern Guizhou |
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| Abstract: | To screen high-quality rice varieties suitable for planting in northern Guizhou. Nine high-quality rice varieties were used as experimental materials in this study to compare and analyze the growth period, yield composition, dry matter accumulation and matter conversion rate of the tested varieties. The results showed that the whole growth period of different varieties ranged from 150 days to 156 days, and the sowing and drawing period ranged from 16 days to 122 days. The growth period of Chuanyou 2115 was the longest (156 days), and that of Jing 3you 348 was the shortest (150 days). The tested varieties were divided into high yield, middle yield and low yield by cluster analysis with yield as the index. The high yield rice varieties were Chuanyou 6203, Chuanyou 2115 and Pengyou 1269, the middle yield varieties were Yixiangyou 2115, Quanyou Efengsimiao and Jing3you 348, and the low yield varieties were Dalianxiang, Shengyunxianghe and Diantun 502. The yield of high yield varieties was 41.84kg/667m2 and 206.98kg/667m2 higher than that of medium and low yield varieties, respectively. Based on the analysis of the growth period, yield composition and population quality of different yield levels, Chuanyou 6203, Chuanyou 2115 and Pengyou 1269 have the characteristics of more effective panicles, high seed setting rate, large dry matter accumulation in the late growth stage, and high material conversion rate of leaves and stems and sheaths. The results of this experiment can provide reference for breeding and genetic improvement of high-quality rice varieties in northern Guizhou. |
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| Keywords: | High quality rice Variety screening Yield composition Dry matter |
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