糯玉米品种斯达糯46在越南的试种表现

Trail Growing Performance of Waxy Maize Variety Sidanuo 46 in Vietnam

为明确糯玉米优质品种斯达糯46在越南种植的适应性,将该品种种植于越南红河三角洲地区,以越南主栽品种HN88为对照,对其生育期、农艺性状、抗性、食味品质等进行鉴定和评价。结果表明,斯达糯46生育进程与对照HN88相似;农艺性状方面,斯达糯46穗位株高比优于对照HN88,抗倒伏能力强;抗病虫害方面,斯达糯46对螟虫、大斑病、小斑病、茎腐病、矮花叶病、穗腐病有良好的抗性;果穗性状方面,斯达糯46的双穗率、穗长、穗粗、穗行数、穗粒数均高于对照HN88,千粒重较对照HN88高13.3%;产量表现方面,斯达糯46的鲜穗产量较对照HN88显著增加20.9%,籽粒产量较对照HN88增加17.8%;品质评分与对照HN88接近。综合以上结果,种植于越南的斯达糯46表现了良好的气候适应性,在产量、抗性、品质、植株性状等方面表现突出,有良好的推广价值。

In order to explore the adaptability of high-quality waxy maize variety Sidanuo 46 in Vietnam,Sidanuo 46 was planted in Red River Delta region of Vietnam.The important characteristics,such as growing period,agricultural traits,resistance,taste quality,were identified and evaluated,by using HN88 as the control,which was a mainly cultivated maize variety in Vietnam.The results showed that Sidanuo 46 had a similar growth period with the control HN88.In terms of agronomic traits,Sidanuo 46 had a more appropriate ratio of ear position to plant height than that of the control HN88,which showed high resistance to lodge.In terms of pest and disease resistance,Sidanuo 46 exhibited good resistance to borer,leaf blight,southern leaf blight,stem rot,dwarf mosaic disease and ear rot.In terms of ear characters,the rate of two ears,ear length,ear diameter,ear row number and row grain number of Sidanuo 46 were higher than those of control,with an increase of 13.3%in 1000-grain weight compared with the control HN88.In terms of yield performance,the fresh ear yield and grain yield of Sidanuo 46 were 20.9%and 17.8%higher than the those of control HN88,respectively.The quality score was consistent with the control HN88.Based on the above results,Sidanuo 46 planted in Vietnam showed good climate adaptability,had outstanding performance in yield,resistance,quality,and plant traits,and had good promotion value.