基于品种熟期和籽粒脱水特性的机收粒玉米 适宜播期与收获期分析
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张万旭, 明博, 王克如, 刘朝巍, 侯鹏, 陈江鲁, 张国强, 杨京京, 车淑玲, 谢瑞芝, 李少昆
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Analysis of Sowing and Harvesting Allocation of Maize Based on Cultivar Maturity and Grain Dehydration Characteristics
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WanXu ZHANG, Bo MING, KeRu WANG, ChaoWei LIU, Peng HOU, JiangLu CHEN, GuoQiang ZHANG, JingJing YANG, ShuLing CHE, RuiZhi XIE, ShaoKun LI
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| 表2 供试玉米品种生育进程、产量及生理成熟期籽粒含水率 |
| Table 2 The growth stage, yield and grain moisture content at maize physiological maturity of the tested cultivars |
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年份
Year | 品种
cultivar | 生育进程Growth process | 产量及含水率Yield and moisture content | 播种日期
Sowing
date
(M-D) | 出苗日期
Date of emergence
(M-D) | 吐丝期
Silking
period
(M-D) | 生理成熟期
Physiological maturity
(M-D) | 播种-吐丝期
Sowing - Pollination period (d) | 播种-生理
成熟期
Sowing - Physiological maturity (d) | 产量
Yield
(kg·hm-2) | 生理成熟期
籽粒含水率
Moisture content of physiological maturity (%) | 收获期籽粒
含水率
Grain moisture content of harvest period (%) | | 2015 | KWS9384 | 4-15 | 4-29 | 7-1 | 9-18 | 77 | 156 | 14187.0 | 29.2 | 18.6 | | 新玉77 Xinyu 77 | 4-15 | 4-28 | 7-9 | 9-25 | 85 | 163 | 19047.0 | 31.5 | 22.0 | | M751 | 4-15 | 4-29 | 7-18 | 10-6 | 94 | 174 | 17703.0 | 29.2 | 28.6 | | 2016 | KWS9384 | 4-14 | 4-24 | 7-1 | 9-14 | 78 | 153 | 18999.0 | 29.7 | 16.5 | | 新玉77 Xinyu 77 | 4-14 | 4-24 | 7-10 | 9-21 | 87 | 160 | 18266.6 | 32.2 | 22.1 | | M751 | 4-14 | 4-24 | 7-16 | 9-26 | 93 | 165 | 20933.3 | 30.6 | 24.9 | | 2017 | KWS9384 | 4-22 | 5-2 | 7-3 | 9-17 | 72 | 148 | 19062.6 | 29.5 | 17.1 | | 新玉77 Xinyu 77 | 4-22 | 5-2 | 7-11 | 9-29 | 80 | 160 | 21775.7 | 33.3 | 21.8 | | M751 | 4-22 | 5-2 | 7-17 | — | 86 | — | 20706.2 | — | 17.6 |
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