行距和密度对高粱籽粒灌浆、淀粉及氮磷钾累积特征的影响
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董二伟, 王劲松, 武爱莲, 王媛, 王立革, 韩雄, 郭珺, 焦晓燕
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Effects of row space and plant density on characteristics of grain filling, starch and NPK accumulation of sorghum grain of different parts of panicle
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DONG Er-Wei, WANG Jin-Song, WU Ai-Lian, WANG Yuan, WANG Li-Ge, HAN Xiong, GUO Jun, JIAO Xiao-Yan
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表1 栽培模式籽粒饲用高粱籽粒不同部位灌浆活跃天数和平均灌浆速率
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Table 1 Active grain-filling period and average grain-filling rate of different parts of sorghum grain
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行距 Row space (cm) | 密度 Planting density (×104 hm-2) | 上部籽粒 Upper part of panicle | 中部籽粒 Middle part of panicle | 下部籽粒 Lower part of panicle | T (d) | G (mg grain-1 d-1) | T (d) | G (mg grain-1 d-1) | T (d) | G (mg grain-1 d-1) | 30 | 13.5 | 19.71 b | 0.61 c | 40.69 cde | 0.58 de | 43.25 ab | 0.51 e | 16.5 | 18.87 b | 0.77 b | 38.41 e | 0.58 de | 44.64 a | 0.46 f | 19.5 | 18.86 b | 0.78 b | 40.07 de | 0.61 cd | 43.82 ab | 0.47 f | 22.5 | 19.82 b | 0.72 d | 40.55 cde | 0.57 e | 41.64 bc | 0.45 f | 50 | 13.5 | 22.19 a | 0.73 d | 43.15 bc | 0.63 c | 39.26 d | 0.64 cd | 16.5 | 22.84 a | 0.78 b | 38.66 de | 0.72 a | 40.65 cd | 0.64 cd | 19.5 | 18.90 b | 0.79 b | 38.76 de | 0.68 b | 38.03 de | 0.63 d | 22.5 | 14.88 c | 0.85 a | 35.46 f | 0.71 ab | 33.85 f | 0.72 a | 60 | 13.5 | 19.67 b | 0.79 b | 45.60 ab | 0.59 de | 33.82 f | 0.72 a | 16.5 | 18.85 b | 0.77 b | 42.98 c | 0.63 c | 34.12 f | 0.70 a | 19.5 | 18.68 b | 0.81 ab | 46.46 a | 0.55 e | 35.85 ef | 0.67 bc | 22.5 | 19.16 b | 0.77 b | 41.10 cd | 0.64 c | 39.40 d | 0.61 d | F值 F-value | 行距Row space | ns | ** | ** | ** | ** | ** | 密度Density | ** | ** | ** | ** | ns | * | 行距×密度 Row space×Density | ** | ** | ** | ** | ** | ** |
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