Agronomic Yield Performance of Rape and Assessment of Discrimination of Soil Fertilizer Amendments on Genotypic Responses

Marshal Mayuniyuni, L. Tembo
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引用次数: 1

Abstract

Aim: The objectives of the study were to (i) assess agronomic performance of rape (Brassica napus L.) genotypes under different soil amendments and seasons and (ii) identify the most discriminating soil fertilizer amendment on genotypic responses of rape. Study Design: The experiment was laid as a split plot design with 3 replications in each season. Place and Duration of Study: The study was undertaken in Monze district, southern province, Zambia in winter and summer periods of 2020/2021 cropping season. Methodology: The soil fertilizer amendment combinations were the main plots and rape varieties (English Giant [ENG], Hobson [HOB] and Rampart [RAM]) were laid as subplots. Giving a total of 54 experimental units per season. The amendments constituted combinations of raw dung type and artificial fertilizer. The quantitative data, on biomass, breadth, height and leaf count were measured at six weeks after transplanting. Results: Across seasons, soil amendment and genotypic main effects exhibited significantly responses with regards to biomass and leaf count (P = 0.05). Furthermore, the agronomic genotypic performance showed that RAM was the worst performer. The genotypic response to measured agronomic parameters was better in Raw Cow-Dung plus Cow- Dung Ash (RCD + CDA) soil fertilizer amendment than others. Interestingly RCD + CDA was the common discriminating amendment in summer and winter trials. Conclusion: Rape genotypes performed relatively better in summer than in winter season. The genotype English giant rape and Hobson were better performers across seasons and soil fertilizer amendments. The combination of RCD + CDA was the common discriminating amendment in both summer and winter trials.
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油菜的农艺产量表现及土壤改良剂对基因型反应的鉴别评价
目的:研究不同土壤改良剂和季节条件下甘蓝型油菜的农艺性能,确定对油菜基因型反应最具区别性的土壤改良剂。研究设计:试验采用裂区设计,每季3个重复。研究地点和时间:本研究于2020/2021种植季的冬季和夏季在赞比亚南部省份Monze区进行。方法:以土壤改良剂组合为主要样地,油菜品种(英巨人[ENG]、霍布森[HOB]和兰帕特[RAM])为次要样地。每季总共有54个实验单位。改良后的肥料由生粪型和人工肥料组成。在移栽后6周测量生物量、宽度、高度和叶数的定量数据。结果:不同季节,土壤改良剂和基因型主效应对生物量和叶数有显著影响(P = 0.05)。此外,农艺基因型表现表明,RAM表现最差。生牛粪加牛粪灰(RCD + CDA)土壤改良剂对测定农艺参数的基因型响应较好。有趣的是,RCD + CDA是夏季和冬季试验中常见的歧视性修正。结论:油菜基因型在夏季表现优于冬季。基因型英国巨型油菜和霍布森油菜在不同季节和土壤肥料改良剂中表现较好。RCD + CDA组合是夏季和冬季试验中常见的判别修正。
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