几种发芽前处理对石榴种子和幼苗生长的影响

L. Monteiro, A. C. Boliani, A. F. A. Ferreira, M. G. F. Rodrigues, G. A. Faria, Marcela Sant’anna Cordeiro da Silva, Marcela Pacola Oliveira, S. R. Cunha, L. Ribeiro
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引用次数: 1

摘要

石榴因其植物化学成分而成为健康水果。一些休眠研究表明,需要了解种子生理,随后的幼苗生产,因为生产者打算扩大石榴的供应,除了促进这种有前途的作物的引进。因此,本研究旨在鉴定石榴品种Comum种子可能存在的表皮休眠,并评价机械切割和水浸泡作为克服方法的效果。在这项研究中,从瘢痕化和未瘢痕化的种子中取出结节,然后将其浸泡在去离子水中长达0、12、24和48小时。然后将种子埋入有有机基质的膨胀聚苯乙烯托盘中。除叶数、茎粗、地上部和根系长度、鲜物质和总干物质等生物特征指标外,还进行了初出芽、速度指数、平均出芽时间和出芽率的评价。采用完全随机设计的2 × 4因子排列(有无划伤× 4浸泡时间),4个重复,每个重复25粒种子。结果表明,无论是出苗期还是幼苗初期生长变量,种子都不需要烘干和浸泡。结果表明,对出苗期和初期生长变量,不需要进行划伤和浸水处理,从而得出石榴种子cv。蚕豆没有表皮休眠。
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Implication of some pre-germination treatments on seeds and initial seedling growth of pomegranate (Punica granatum L.)
Pomegranate stands out as healthy fruit due to its phytochemical compounds. Some dormancy studies have stated the need to understand seed physiology, subsequent seedling production, as producers intended to expand the supply of pomegranate, besides facilitating the introduction of such promising crop. Thus, this study aimed to identify possible integumentary dormancy in seeds of pomegranate cultivar Comum and to evaluate the effect of mechanical scarification and water immersion of seeds, as overcoming method. In this study, sarcotesta was removed from scarified and non-scarified seeds, and then immersed in deionised water for up to 0, 12, 24 and 48 hours. Then seeds were embedded in trays of expanded polystyrene with organic substrate at greenhouse. The following evaluations were carried out: initial emergence, speed index, mean time of emergence and emergence percentage, besides biometric variables such as leaf number, stem diameter, length of aerial part and root system, fresh matter and total dry matter. A 2 x 4 factorial arrangement (presence or absence of scarification x four immersion time) in a completely randomized design was used, with 4 replicates of 25 seeds each. The results showed that seeds do not need to be scarified and immersed in water, regarding to both emergence and initial seedling growth variables. Results indicated that it was unnecessary to perform scarification and water immersion for emergence and initial growth variables, leading to conclusion that pomegranate seeds cv. Comum have no integumentary dormancy.
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