Research Article Agronomic performance of wheat cultivars in different sowing dates under high temperature conditions in Brazil

IF 0.6 Q4 GENETICS & HEREDITY

Genetics and Molecular Research Pub Date : 2022-01-01 DOI:10.4238/gmr18993

G. Bevilacqua, A. P. Neto, B. Val, Carolina Azevedo, J. S. Sobrinho, P. Libório, W. S. Leite, S. H. Unêda-Trevisoli

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引用次数: 0

Abstract

. Wheat is considered a basic cereal for civilization with great economic importance for world agriculture. Currently, wheat is planted in the south, southeast and midwest regions of Brazil. Brazilian consumption of wheat will grow in the coming years due to population increase, which will require developing new cultivars for non-tradtional regions. We investigated commercial wheat genotypes grown at various sowing dates in a region with high temperature conditions. The experiment was conducted during the two summer and two autumn seasons. Sowings were March 10, March 20, April 1 and April 10. The agronomic traits (grain yield, plant height, spike size, total spikelets per spike and fertile spikelets per spike) for four commercial genotypes were evaluated. The experimental design was randomized blocks in a factorial scheme, corresponding to four genotypes, four sowing seasons and two years of cultivation. The second sowing year gave the best performance for the genotypes. Genotypes BR 18 and BRS 404 gave superior agronomic performance, standing out in the third and fourth sowing dates, under these culture conditions.

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研究文章:巴西高温条件下不同播期小麦品种的农艺性能

。小麦被认为是文明的基本谷物，对世界农业具有重要的经济意义。目前，小麦种植在巴西的南部、东南部和中西部地区。由于人口增长，巴西的小麦消费量将在未来几年增长，这将需要为非传统地区开发新的品种。我们研究了在高温条件下不同播期生长的商品小麦基因型。实验在两个夏季和两个秋季进行。播种时间分别为3月10日、3月20日、4月1日和4月10日。对4个商品基因型的籽粒产量、株高、穗大小、每穗总颖花数和每穗可育颖花数等农艺性状进行了评价。试验设计采用因子法随机分组，对应4个基因型、4个播种季节和2年栽培。各基因型在播种第二年表现最好。在这些培养条件下，基因型br18和BRS 404的农艺表现优异，在播3期和播4期表现突出。

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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来源期刊

Genetics and Molecular Research 生物-生化与分子生物学

CiteScore

1.00

自引率

25.00%

发文量

审稿时长

3 months

期刊介绍： Genetics and Molecular Research (GMR), maintained by the Research Foundation of Ribeirão Preto (Fundação de Pesquisas Científicas de Ribeirão Preto), publishes high quality research in genetics and molecular biology. GMR reflects the full breadth and interdisciplinary nature of this research by publishing outstanding original contributions in all areas of biology. GMR publishes human studies, as well as research on model organisms—from mice and flies, to plants and bacteria. Our emphasis is on studies of broad interest that provide significant insight into a biological process or processes. Topics include, but are not limited to gene discovery and function, population genetics, evolution, genome projects, comparative and functional genomics, molecular analysis of simple and complex genetic traits, cancer genetics, medical genetics, disease biology, agricultural genomics, developmental genetics, regulatory variation in gene expression, pharmacological genomics, evolution, gene expression, chromosome biology, and epigenetics.