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在大田条件下,连续2 a以洛麦23为试验材料,采用随机区组设计,研究了3个行距和3个播量对其产量及其构成因素的影响。结果表明,不同行距间,穗数、穗粒数和籽粒产量均表现为15 cm最高,较10,20 cm分别高3.32%和4.45%,3.68%和4.55%,2.13%和8.84%,千粒质量表现为10 cm最高,较15,20 cm分别高4.63%和8.65%;不同播量间,穗数表现为D2(262.5 kg/hm2)和D3(375 kg/hm2)显著高于D1(150 kg/hm2),分别较D1高5.98%和9.28%,穗粒数表现为D1高于D2和D3,分别高4.84%和11.45%,千粒质量表现为D1最高,较D2和D3分别高2.45%和4.82%,产量表现为D1和D2高于D3,分别较D3高3.45%和5.92%;2个因素互作下表现为:穗数以R1D3(10 cm行距、375 kg/hm2播量)为最高,穗粒数以R2D1(15 cm行距、150 kg/hm2播量)为最高,千粒质量以R1D1(10 cm行距、150 kg/hm2播量)为最高,产量以R2D1(15 cm行距、150 kg/hm2播量)为最高。
Under field conditions, the effects of three row spacing and three sowing rates on yield and its components were studied using randomized block design for 2 years in a row. The results showed that the spike number, spike number and grain yield were the highest at 15 cm, which were 3.32% and 4.45%, 3.68% and 4.55%, 2.13% and 8.84% The highest quality was 10 cm, which was 4.63% and 8.65% higher than that of 15 and 20 cm respectively. The spike numbers of D2 (262.5 kg / hm2) and D3 (375 kg / hm2) were significantly higher than those of D1 kg / hm2), respectively, which were 5.98% and 9.28% higher than that of D1 respectively. The number of grains per spike was higher than that of D2 and D3 by 4.84% and 11.45%, respectively. The highest grain yield was D1 and the highest was D2 % And 4.82% respectively. The yield was higher for D1 and D2 than for D3, which were 3.45% and 5.92% higher than D3 respectively. The interaction of the two factors was as follows: R1D3 (10 cm spacing, 375 kg / hm2 sowing) The highest grain yield per spike was R2D1 (15 cm spacing, 150 kg / hm2 sowing), and the highest grain yield was R1D1 (10 cm spacing, 150 kg / hm2 sowing) , 150 kg / hm2 broadcast amount) is the highest.