优质中筋小麦晋太182高产栽培技术研究

为了在山西中部麦区大面积推广优质中筋小麦晋太182,开展了播期和种植密度二因素随机区组试验研究。结果表明,播期与密度对晋太182产量构成因素的影响均达极显著水平,随着播期的推迟,株高依次降低,穗长依次缩短,结实小穗数和不孕小穗数均逐渐减少;随着种植密度增大,植株依次增高、穗长变短、结实小穗数减少、不孕小穗数增多。不同的播期有不同的最佳种植密度。晋太182适播期为9月24—29日,而以9月24日为最佳播期,适宜密度为375万~525万株/hm2,450万株/hm2为最佳密度。晋太182在因前茬作物不能及时收获而晚播的条件下,通过增大种植密度同样可以获得高产。

High-yield Cultivation Technology of Medium Gluten Wheat Jintai 182

To provide scientific cultural reference to large scale spreading of Jintai 1N2, the effect of sowing date and planting den- sity on yield and its components were studied in field by two factor randomized block experimental research. The results showed that the effect of sowing time and planting density was significant both on yield and its components. The number of plant height, spike length and spikelet fertility decreased with the delay of sowing time. As the planting density increases, the plants height increased, spike length be- came shorten and infertile spikelet increased. The available sowing time range of Jintai 182 in the four planting districts were as follows： Sept. 24 to Sept. 29, while Sept. 24 was the optimum sowing date. And the suitable planting density ranged from 375 ~ 104-525 ~ 104 plant/hm2, the optimum seedling density was 450 - 104 plant/hm2. When previous crops failed to be harvested or under late sowing condi- tions, high yield could be available through planting density increasing.To provide scientific cultural reference to large scale spreading of Jintai 1N2, the effect of sowing date and planting den- sity on yield and its components were studied in field by two factor randomized block experimental research. The results showed that the effect of sowing time and planting density was significant both on yield and its components. The number of plant height, spike length and spikelet fertility decreased with the delay of sowing time. As the planting density increases, the plants height increased, spike length be- came shorten and infertile spikelet increased. The available sowing time range of Jintai 182 in the four planting districts were as follows： Sept. 24 to Sept. 29, while Sept. 24 was the optimum sowing date. And the suitable planting density ranged from 375 ~ 104-525 ~ 104 plant/hm2, the optimum seedling density was 450 - 104 plant/hm2. When previous crops failed to be harvested or under late sowing condi- tions, high yield could be available through planting density increasing.