花生新品种福花4号干物质积累与分配特性的初步研究

Preliminary study on matter accumulation and distribution characteristic of new peanut variety Fuhua4

通过研究花生新品种福花4号的叶面积与干物质积累动态,为其栽培技术措施的制定提供试验依据。以泉花10号为对照,对福花4号的光合特性进行了研究。结果表明：福花4号在幼苗期、开花下针期、结荚期和饱果成熟期的LAI分别为0.1107、4.6803、3.7054和2.1458;净同化率分别为2.0737、3.2660、4.6444、2.5473;干物质积累量占全生育期总干物质量的比例分别为1.8%、31.4%、51.5%、15.3%,产量形成期为66.8%;产量形成期的经济系数高,不仅库大、源大,而且库/源比率高,库源协调性好,具有高产的生理基础。

In this paper,new peanut variety Fuhua4 leaf area and dry matter accumulation was researched to formulate reasonable culture techniques.Compared with Quanhua 10,Fuhua4 photosynthesis characteristic have been researched.The new peanut variety Fuhua of LAI in Seedling stage,flowering and pegging stage,bearing pod stage and pod setting stage is 0.1107,4.6803,3.7054 and 2.1458,respectively.The NAR of seedling stage,flowering and pegging stage,bearing pod stage and pod setting stage were 2.0737,3.2660,4.6444 and 2.5473,respectively.The percentage of dry matter accumulation in the whole growth period of needling stage,flowering and pegging stage,bearing pod stage,pod setting stage and yield-forming stage were 1.8,31.4,51.5,15.3 and 66.8,respectively.Its yield-forming stage,not only the big sink and source,but also the great ratio of sink/source,had high economic factor and good coordination between the sink and source.These results indicated that the high production physiological foundation of Fuhua4,taking the corresponding cultural measure can achieve the high production.