瓜砧木种子根系出苗试验及贮藏寿命研究

IF 1.7 4区农林科学 Q2 AGRONOMY

Seed Science and Technology Pub Date : 2022-01-01 DOI:10.15258/sst.2022.50.1.01

S. Ermis, Güleda Oktem, K. Mavi, F. Hay, I. Demir

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引用次数: 2

摘要

以瓜(C. maxima × C. moschata)砧木品种为研究对象，研究了单根出苗数(RE)与种子库存量的相关性。RE试验通过计算发芽26 ~ 100 h的胚根出苗率进行。通过在35°C 75%相对湿度条件下储存100天来测定种子寿命，并根据正常发芽率构建种子存活曲线。通过probit分析，确定了Ki(预估初始活力的probits)、σ(种子死亡时间正态分布的标准差)和p50(活力降至50%的时间)。相关分析表明，RE数与正常发芽率、Ki和p50呈极显著相关(P < 0.01)，其中30 ~ 34 h的RE数与正常发芽率、Ki和p50呈极显著相关。由此可见，稀土试验可作为葫芦砧木种子品种后续种子批次寿命的一个指标。

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The radicle emergence test and storage longevity of cucurbit rootstock seed lots

A study was carried out to test whether a single count of radicle emergence (RE test) would correlate with the storage potential of seed lots of cucurbit (C. maxima × C. moschata) rootstock cultivars. The RE test was performed by counting radicle emergence percentage between 26 and 100 hours of germination. Seed longevity was determined by storage at 75% relative humidity at 35°C over 100 days, with seed survival curves constructed based on normal germination percentages. Ki (estimated initial viability in probits), σ (standard deviation of the normal distribution of seed death in time) and p50 (time for viability to fall to 50%) were determined through probit analysis. Correlation analysis showed that RE counts particularly between 30 and 34 hours were highly (P < 0.01) correlated with normal germination percentage, Ki and p50. It can be concluded that RE tests can be used as an indicator of subsequent seed lot longevity in cucurbit rootstock seed cultivars.

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来源期刊

Seed Science and Technology 农林科学-农艺学

CiteScore

3.00

自引率

28.60%

发文量

审稿时长

>36 weeks

期刊介绍： Seed Science and Technology (SST) is an international journal featuring original papers and articles on seed quality and physiology related to seed production, harvest, processing, sampling, storage, genetic conservation, habitat regeneration, distribution and testing. A journal that meets the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality. Published every April, August and December.