The Biological Factor Influence on Maize Seed Production

A. Soare, G. Voicu
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引用次数: 0

Abstract

This work presents the behaviour of two hybrids in seed growing; these hybrids, DKC 3203 (Monsanto) and Clarica 3893 (Pioneer), are simple hybrids and they are part of FAO 300-400 group. The seed batch was placed within Urleasca locality radius, Brăila county, on a chernozem type of soil, with physical and chemical characteristics which are favourable to maize plants’ growth and development, area which is characterized through a semi-droughty steppe climate, with a sprinkling system well refurbished. For the hybrids analysed, after harvest, there were determined the productivity elements (number of kernels/cob, cobs’ average weight, the weight of the kernels/cob), the yield and the quality indices, purity and germination; also, there were performed biometrical measurements (the length and diameter of the cob, and corn car’s diameter) and finally, there were determined the productions obtained. The biometrical measurements showed that the cobs of DKC 3203 hybrid have both the length (13.9 cm) and the diameter (4.1 cm) higher than the ones from Clarica hybrid, 13.6 cm respectively 3.2 cm. At Clarica 3893 hybrid, the cobs have a higher number of kernels (310.15), but the weight of the kernels on a cob (81.69 g) is smaller, due to the fact that the kernels are smaller and not equal in size, as compared with DKC 3203 hybrid, which has smaller number of kernels (304.33), but the kernels are larger (107.35 g) and more uniform. At DKC 3203 hybrid, the yield was 5.1% higher than at Clarica 3893 hybrid, this being correlated with a production higher by 205 kg/ha obtained from the same hybrid. It was observed that at the hybrid from Monsanto company, DKC 3203, it was obtained a production of 3840 kg/ha and a profitability ratio of 62.85% as against the hybrid from Pioneer company, Clarica 3983, at which there was obtained a production of 3635 kg/ha and a profitability ratio of 62.82% in the same climatic conditions and with applying the same technological elements, thus resulting that both hybrids are profitable from economic point of view in order to produce seed, due to the fact that crop’s profitability is over 50%.
生物因子对玉米种子生产的影响
本文介绍了两种杂交种在种子生长中的行为;这些杂交种dkc3203(孟山都)和Clarica 3893(先锋)是简单杂交种,属于粮农组织300-400组。种子被放置在Brăila县Urleasca地区半径内,黑钙土类型的土壤,具有有利于玉米植物生长发育的物理和化学特征,该地区的特点是半干旱草原气候,洒水系统翻新良好。对所分析的杂交种,在收获后测定了产量要素(粒/芯数、粒/芯平均重量、粒/芯重量)、产量和品质指标、纯度和发芽率;并进行了生物特征测量(棒材的长度和直径,玉米芯的直径),最后确定了获得的产品。生物统计学测量结果表明,dkc3203杂交种的穗轴长度(13.9 cm)和直径(4.1 cm)分别比Clarica杂交种的13.6 cm和3.2 cm高。在Clarica 3893杂交种中,与DKC 3203杂交种相比,籽粒数较少(304.33),但籽粒较大(107.35 g),籽粒均匀性较好,籽粒数较多(310.15),但籽粒重量较小(81.69 g)。DKC 3203的产量比Clarica 3893高出5.1%,这与同一杂交种的产量高出205公斤/公顷相关。我们观察到,孟山都公司的杂交品种DKC 3203的产量为3840公斤/公顷,收益率为62.85%,而先锋公司的杂交品种Clarica 3983的产量为3635公斤/公顷,收益率为62.82%,在相同的气候条件下,采用相同的技术要素,这两个杂交品种从经济角度来看都是有利可图的,以便生产种子。由于农作物的盈利能力超过50%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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