بررسي اثر زمان هاي برداشت بر درصد جوانه زني و صفات مرتبط با آن در ارقام لوبيا قرمز با استفاده از مدل رگرسيوني چند متغيره و تجزيه عليت

In order to study the effect of harvesting time on multiple regression of dermining germination and path analysis of kidney bean cultivars , this study conducted in Karaj Seed and Plant Improvement Institute in 1996 on 16 Red bean cultivars contain : LQk-29, KIP31,AND-1007, D-18083, DOR-364, AND-925, MOC-59, MCD-2004, DOR-476, DCD 2004 RAB-58, RAB-484, RAB-505, XAN-194, RAP-50, GOLI NAZ , therefore after harvesting seeds in 3 stages before physiological rippening physiological ripening and fully maturation , germination test and some vigour tests as Cold Test(CT) , Accelerated Aging test(AA) , T4, T7 , EE , WE , WS , WE / WS , LE/ LS , 100WS , ECS , ECW were done in the basis of randomized complete design with 4 replications. The results showed that , in the case of before physiological harvesting(Tl) enter of independent variables CT , T7 ,LE/LS and WE/WS in multiple regression model with estimated variable 0.140716 , 0.200634 , -0.1353 ,143.2916 and 3105.4628 and (bO) -76.69 estimated %96.30 of germination percent In the case of physiological harvesting(T2) enter of independent variables CT , T7 in multiple regression model with estimated variable 0.4894 and 0.3212 and (bO) -8.059 predicated %62.06 of germination percent . calculated model of fully mature harvesting (T3) showed independent variables T4 ,LE/LS , WE/WS and AA with coefficient 0.1565 , 0.1021 , 0.2909 and 0.1565 and bO (4.12035051) %61.82 of germination percent. Direct and indirect effect relations were studied by Path analysis . The results indicated that, amoung characters and independent variables in fully mature harvesting of 16 red bean cultivars , WE/WS with 0.558 had maximum correlation with germination percent . Its direct effect was 0.022 and did not showed significant effect at %1 level .It seemed that, this high correlation due to indirect effects as WE , 100WS and ECW.