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本试验以杂交水稻汕优6号为对象,观察抽穗期的温度条件对该杂交组合的抽穗开花、成穗结实和产量的影响,目的在于为高产提供资料. 试验方法试验在奉化县农业科学研究所(北纬29°40’,东径121°26’拔海高度7.9米)进行,试验地段与气象观测场相距百米. 试验采取分期播种,定穗观察,结合气象资料和产量进行平行分析. 播种共分5期,即6月11日、6月21日、7月1日、7月11日和7月18日,以期遇到较广泛的抽穗时间范围.各期秧苗长到7叶1心时移栽,求其处于相对一致状态.行株距7×5.2寸,单本插(带分蘖).小区
In this experiment, the hybrid rice “Shanyou 6” was used as the object to observe the effect of temperature at heading stage on the heading, flowering, ear-ripening and yield of this hybrid combination with the purpose of providing data for high yield.METHODS The experiment was conducted in Fenghua County Agricultural Science Research (29 ° 40 ’north latitude, 121 ° 26’ east elevation of 7.9 meters), and the experimental section is 100 meters away from the meteorological observation field. The experiment was carried out by staged sowing, fixed panicle observation and parallel analysis with meteorological data and yield. Sowing is divided into 5, that is, June 11, June 21, July 1, July 11 and July 18, in order to encounter a wider range of heading time. Each stage of seedlings grow to 7 leaves 1 Transplantation heart, and asked to be in a relatively consistent state of line spacing of 7 × 5.2 inch, single interpolation (with tillering)