水激发和光激发对秋葵种子萌发、产量和产量贡献特性的影响

Shaila Shermin Tania, M. Rhaman, M. Hossain
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引用次数: 13

摘要

灌种是一种播前处理,可以使种子更有效地发芽,提高幼苗活力和产量。水浸是一种重要的种子处理技术,可以实现种子快速萌发,而晕浸也是种子预播的有效手段。因此,本研究旨在评价不同浸渍源和不同浸渍时间对秋葵种子萌发和发育的影响。两个秋葵品种,即BARI heros 2 (v1)和Green finger秋葵(v2),有四种处理(t1,非启动种子;t2,用普通自来水±25℃浸泡种子12小时;t3、用热水50℃浸泡5分钟;试验采用完全随机设计(CRD),每个处理重复3次。结果表明,50℃热水浸泡5 min后,种子发芽率(92.79%)最高,种子活力指数(1019 cm)最高,首次开花天数最高,收获成熟天数最高,1000粒重最高,单株总果数最高(29.5个),正常水和3% NaCl浸泡均能提高种子发芽率及其他各项指标。结果表明,水浸(热水)比水浸(正常水)和晕浸(3% NaCl)效果更好。两种启动都影响了两个品种的表现,但绿指品种在几乎所有参数上的表现都略好于BARI heroos 2。结果表明,水浸和光晕浸能提高秋葵种子萌发率,提高秋葵产量
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Hydro-priming and halo-priming improve seed germination, yield and yield contributing characters of Okra (Abelmoschus esculentus L.)
: Seed priming is a pre-sowing treatment which enables the seed to germinate more efficiently and improves seedling vigor as well as yield. Hydro-priming is an important seed treatment technique for rapid seed germination and pre-sowing of seeds with halo-priming is also known as an effective tool. Therefore, a study was conducted with the aim of evaluating the effect of different priming sources with various durations on okra seeds germination and development. Two varieties of okra viz. BARI Dheros 2 (V 1 ) and Green finger okra (V 2 ) having four treatments (T 1 , non-primed seeds; T 2 , seed soaking with normal tap water ± 25ºC for 12 hr; T 3 , priming with hot water 50ºC for 5 min; T 4 , priming of seeds with 3% NaCl for 12 hr) were investigated in a completely randomized design (CRD), each treatment being replicated three times. Results of the study showed that maximum seed germination percentage (92.79%), seed vigor index (1019 cm), first flowering days, days to harvesting maturity, 1000 seeds weight, and total number of fruits per plant (29.5) were observed when the seeds primed by hot water 50 º C for 5 min. In this study, seed germination and all other parameters were also increased by normal water and halo-priming (3% NaCl). Our results showed that hydro-priming (with hot water) were found superior to hydro-priming (with normal water) and halo-priming (3% NaCl). Both priming influenced performance of two varieties, though green finger variety showed slightly better performance in almost all the parameters over the variety BARI Dheros 2. Our results suggest that hydro-priming and halo-priming can improve okra seed germination as well as okra production
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