法国蓖麻熟期与穗部经济性状的通径分析

对 12份法国蓖麻品种的出苗期、现蕾期、开花期、成熟期、收获期和有效穗数、穗粒数、百粒重及小区产量 8个性状的相关及通径关系进行分析研究。结果表明 :①法国蓖麻品种的播种至出苗期与开花至成熟期呈正相关 (r=0 .12 78) ,现蕾至开花期对开花至成熟期的间接作用P3→ 2→y =0 .6 986比其直接作用P3→y =- 0 .6 5 2 8明显。②现蕾至开花期对单株有效穗、单株穗粒数呈极显著正相关 (r=0 .2 76 8、r =0 .2 2 4 5 ) ,现蕾至开花期对单株有效穗、单株穗粒数的间接作用 (P3→ 2→y =3 92 75、P3→ 2→y =3 5 4 4 3)比其直接作用 (P3→y =- 2 4 437、P3→y =- 2 2 6 0 2 )明显。③出苗至现蕾期与百粒重呈正相关 (r=0 .346 7、P2→y =5 0 32 9)。④现蕾至开花期与小区产量呈极显著正相关 (r=0 .1488) ,现蕾至开花期对小区产量的间接作用 (P3→ 2→y =1 4 40 9)比其直接作用 (P3→y =- 0 .74 5 4 )明显。⑤单株有效穗、单株穗粒数、百粒重对小区产量具有真实的通径关系。

Path Analysis on Maturing Period and Economical Character of Castle Resources from France

Relationship of 8 characters,e.g.sowing period,sprouting period,budding period,flowering period,mature period and effective spikes per plant,grains per spike,100_seed weight,yield per plot etc.were studied by means of path analysis.The result indicated correlation of sowing to sprouting period to blooming to maturing period were positve,the indirect effect of woing to sprouting period to blooming to maturing period were clearer than its direct effect,positive correlation of budding to blooming period to effective spikes per plant and grains per plant were highly significant,the indirect effect of budding to blooming period to effective spikes per plant and grains per plant were clearer than its direct effect,correlation of sprouting to budding period to 100_seed weight were positive,positive correlation of budding to blooming period to yield per plot were highly significant,the indirect effect of budding to blooming period to yield per plot were clearer than its direct effect,relationship of path of effective spikes per plant and grains per spike and 100_seed weight to yield per plot were real.