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蔬菜种子的新与陈,与种子的生活力有着直接的关系。一般来说,蔬菜种子较新,生活力亦较强,使用价值也较高;种子越陈,生活力越弱,使用价值越低。因此,用感官检验蔬菜种子新与陈的同时,也就检验了种子的生活力。一般规律是: 1.凡果皮或种皮色泽新鲜,有光泽者为有生活力,反之无生活力。 2.凡胚部色泽浅,充实饱满、富有弹性者为有生活力,胚部色泽深,干枯、皱缩、无弹性者为无生活力。 3.凡在种子上呵一口气无水气粘附,且不表现出特殊光泽者为有生活力,反之无生活力。 4.豆科、十字花科、葫芦科、伞形花科等蔬菜种子含油量较高、剥开其种子发现两片子叶色泽深黄,无光泽,出现黄斑为走油。这种种子生活力很弱,或已经丧失生活力。
The new and old vegetable seeds have a direct relationship with the viability of the seeds. In general, vegetable seeds are newer, more viable and more valuable to use. The more seeds they are, the weaker the vitality and the lower the value of their use. Therefore, the sensory examination of vegetable seeds new and Chen at the same time, also tested the viability of the seeds. The general rule is: 1. Where the skin color or seed coat fresh, shiny who have vitality, whereas no viability. 2. Where the embryo light color, full full, flexible who are viable, embryo deep color, dry, wrinkled, inelastic are no viability. 3. Where the breath in the breath of the seed breath, and do not show a special luster for the viability, whereas no viability. 4. Leguminosae, Cruciferae, Cucurbitaceae, Umbelliferae and other vegetable seeds higher oil content, peeled off its seeds found two cotyledons deep yellow color, dull, there are macular for the oil. The seed is weak or has lost its viability.