巴西马铃薯新品种的生长、新鲜物质积累和分布

IF 0.7 4区 农林科学 Q4 HORTICULTURE
G. Silva, F. Q. Azevedo, Jackson WP de Melo, G. E. Pereira, Albania J Patiño-Torres, A. D. Carvalho, C. F. Ragassi, A. Pereira
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引用次数: 0

摘要

摘要本研究旨在评估两个马铃薯新品种的植物生长曲线,以更好地了解整个生长周期的植物发育动态,并为管理策略提供资助。2019年春季,在Canonihas SC和Pelotas RS进行了现场实验。将马铃薯新品种BRS F50-Cecília和BRS F183-Potira与该国广泛种植的标准品种Asterix进行了比较。实验设计是随机的完整区块,由43种有用植物和边界组成的地块进行四次复制。在种植后28、42、56、70、84、98和112天对每个地块的四种植物进行破坏性采样。在整个作物周期中对形态农艺性状进行评估,并在其结束时测定块茎产量,每个地块收获15株。Cecília地上部分植物发育良好,块茎产量高。Potira也表现出良好的块茎产量,但在植物发育周期较晚,需要对该特性的差异化管理进行具体研究。一般来说,地上植物部分发育程度越高的基因型产量越高,然而,在这种分析中,不可能只考虑与叶片产量甚至叶面积有关的性状,而是考虑整个植物结构,包括茎的发育。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Growth, fresh mass accumulation and distribution in new Brazilian potato cultivars
ABSTRACT The present study aimed to evaluate the plant growth curve of two new potato cultivars, to better understand the dynamics of the plant development throughout the growth cycle, and to subsidize management strategies. Field experiments were carried out in Canoinhas-SC, and Pelotas-RS, in the spring 2019. The new potato cultivars BRS F50 - Cecília and BRS F183 - Potira were compared with the standard cultivar widely grown in the country, Asterix. The experimental design was randomized complete blocks with four replications of plots composed of 43 useful plants, plus borders. Destructive samples of four plants per plot were carried out at 28, 42, 56, 70, 84, 98, and 112 days after planting. Morpho-agronomic characters were evaluated throughout the crop cycle, and the determination of tuber yield was done at its end, harvesting 15 plants per plot. Cecília presented a great development of the aboveground plant parts, and a high tuber yield. Potira also showed a good tuber yield, but was late in the plant development cycle, requiring specific studies on differentiated management of this character. In general, genotypes with a greater development of the aboveground plant parts are more productive, however, in this analysis it is not possible to consider only characters related to the leaf production or even the leaf area, but the plant structure as a whole, including stem development.
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来源期刊
Horticultura Brasileira
Horticultura Brasileira 农林科学-园艺
CiteScore
1.40
自引率
28.60%
发文量
45
审稿时长
4-8 weeks
期刊介绍: The journal Horticultura Brasileira, a quarterly journal, is the Official Publication of the Sociedade de Olericultura do Brasil. Its abbreviated title is Hortic. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.
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