河南省小麦超高产品种产量形成特点及关键栽培技术研究  

Study on Yield Formation of Two Kinds of Spike of Winter Wheat Cultivars and Their Key Cultivation Techniques for Super-high Yield

作　　者：郭天财[1] 朱云集[1] 王晨阳[1] 崔金梅[1] 康国章[1] 

机构地区：[1]河南农业大学

出　　处：《中国农业科技导报》2004年第4期46-50,共5页Journal of Agricultural Science and Technology

基　　金：国家"十五"重中科技专项<粮食丰产科技工程>( 2 0 0 4BA5 0 2 A-0 6)

摘　　要：在大田高产栽培条件下 ,对 2种穗型冬小麦品种的群体动态、穗花发育、子粒灌浆和产量构成特点进行了系统研究 ,并在此基础上提出了 2种穗型冬小麦品种实现超高产产量指标栽培管理的关键技术 ,即对于分蘖成穗率高、穗粒重较低的多穗型品种 ,应在保持适宜群体头数的基础上 ,采取拔节期追氮等措施能有效减少小花、子房退化 ,增加粒数和粒重 ,提高产量 ;针对大穗型品种分蘖成穗率低、穗粒重较高的特点 ,充分发挥其分化小穗、小花数多 ,穗粒重高的优势 ,并通过适当加大播量和适期肥水管理 ,促进分蘖成穗 ,增加有效穗数 。It showed that differences in dynamic of population, development of spike and floret, and grain filling existed between two kinds of wheat cultivars in this paper. With regards to high ratio of spike to tiller and low ear weight in small-spike cultivars, nitrogen application at jointing stage increased grain number by decreasing aborted florets and ovaries. As for large-spike cultivars, low ratio of spike to tiller and insufficient spike number in the field resulted in low yield compared with small-spike cultivars, which are suggested that increasing sowing density, application of fertilizers and irrigation in fitted stage , increasing number of effective spike, reasonably could get more spikes and higher yield.

关 键 词：河南 小麦 产量形成 栽培技术 

分 类 号：S512.1[农业科学—作物学]