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Evaluation of early maize genotypes for grain yield and agromorphological traits

机译:早期玉米基因型对产量和农艺性状的评价

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The purpose of this study was to assess the variation on agro-morphological traits and grain yield. A set of 14 early maize genotypes were studied at research field of Regional Agricultural Research Station (RARS), Doti, Nepal in summer seasons of 2015 and 2016. The experiment was carried out in Randomized Complete Block Design (RCBD) with three replications in each year. The variation among genotypes was observed for grain yield and flowering. The genotype SO3TEY-PO-BM produced the highest grain yield (4.33 t/ha) in 2015 whereas Rajahar Local Variety produced the highest grain yield (2.52 t/ha) in 2016. The combined analysis over years showed that Farmer’s variety was found earlier in tasseling (36 days) and silking (39 days), followed by S97TEYGHAYB(3) in tasseling (45 days) and by S97TEYGHAYB(3) and Arun-4 in silking (48 days). EEYC1 produced the highest grain yield (3.17 t/ha), followed by COMPOL-NIBP (3.09 t/ha), SO3TEY-PO-BM (2.90 t/ha), S97TEYGHAYB(3) (2.78 t/ha) and Rajahar Local variety (2.77 t/ha), respectively. The information on variation for the agro-morphological traits among studied early maize genotypes will be helpful to plant breeders in constructing their breeding materials and implementing selection strategies.
机译:这项研究的目的是评估农业形态特征和谷物产量的变化。在2015年和2016年夏季,在尼泊尔多蒂地区农业研究站(RARS)的研究领域对一组14种早期玉米基因型进行了研究。该实验在随机完全区组设计(RCBD)中进行,每组三重复年。观察到基因型之间的差异在于谷物产量和开花。基因型SO3TEY-PO-BM在2015年产生了最高的谷物产量(4.33吨/公顷),而拉贾哈尔地方品种在2016年产生了最高的谷物产量(2.52吨/公顷)。抽雄(36天)和silk丝(39天),然后是S97TEYGHAYB(3)进行t丝(45天),然后是S97TEYGHAYB(3)和Arun-4进行ing丝(48天)。 EEYC1的谷物产量最高(3.17吨/公顷),其次是COMPOL-NIBP(3.09吨/公顷),SO3TEY-PO-BM(2.90吨/公顷),S97TEYGHAYB(3)(2.78吨/公顷)和Rajahar Local品种(2.77吨/公顷)。研究的早期玉米基因型之间农业形态性状变异的信息将为植物育种者构建其育种材料和实施选择策略提供帮助。

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