摘要
对不同灌水条件下不同品种春小麦产量及相关性状进行研究,结果表明,春小麦苗期不灌水对以后的生长影响最明显;农麦2号、宁春50号产量高于克旱21;克旱21处理(1)产量最高,宁春50号、农麦2号处理(1)产量最高;苗期水对分化小穗、结实小穗数影响明显,克旱21显著高于宁春50号、农麦2号;增加灌水量,尤其增加灌浆水,克旱21的不实小穗数明显增加,而宁春50号恰好相反;克旱21收获指数显著低于宁春50号、农麦2号。株高、重心高、穗下第Ⅴ节表现为克旱21明显高于宁春50号、农麦2号,3个品种都表现为处理(1)、(2)显著高于处理(3),表明缺少苗期水明显降低春小麦株高、重心高及第V节高;克旱21的第IV节、第III节、第II节茎节长处理(1)、(2)明显高于宁春50号、农麦2号的各处理。综上所述,农麦2号、宁春50号产量及其性状表现较好,苗期灌水最为关键。
This paper studied various spring wheat＇s yields and related traits under different irrigation conditions. The results showed that the growth of spring wheat was affected significantly under the conditions of non-irrigation at seeding stage. The yields of Nongmai No.2 and Ningchun No.50 were higher than Kan 21. Kehan 21 ad the highest yield with（1） irrigation treatment. Ningchun No.50 and Nongmai No.2 had the largest yield with（1） irrigation treatments. The spikelet and fertilized spikelet number were influenced obviously at the seeding stage. The spikelet number of Kehan 21 was remarkably higher than that of Ningchun No.50 and Nongmai No.2. After increasing irrigation amount especially the grain filling water, the nonbearing spikelet number of Kehan 21 increased significantly, while Ningchun No.50 was the opposite. The harvest index of Kehan 21 was significantly lower than that of Ningchun No.50 and Nongmai No.2. Plant height, high center of gravity and section V below spike of Kehan 21, were beeter than that of Ningchun No.5 and Kenong No.2. For the three varieties of spring wheat, the irrigation treatment（1） and（2） were significantly higher than（3）, indicating that lack of water at seeding stage could seriously affect the spring wheat＇s plant height, height of center of gravity and height of section V. With irrigation treatments（1） and（2）, section IV, III and II of Kehan 21 were better than that of Ningchun No.50 and Nongmai No.2.Above all, Nongmai No.2 and Ningchun No.50 had better yields and traits. Moreover, it is key to ensure the irrigation at seeding stage.
作者
李杨
LI Yang(Extension Services Center of Agriculture Mechanization in Lingwu City of Ningxia,Lingwu,Ningxia 75040)
出处
《宁夏农林科技》
2018年第7期4-6,23,共4页
Journal of Ningxia Agriculture and Forestry Science and Technology
关键词
灌水
春小麦
品种
产量
Irrigation
Spring wheat
Varieties
Yield
