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前文报道,秋植花生种子比春植花生种子具有较强的生活力,用秋植花生种子播种可提高出苗率。为要了解春植花生种子在贮藏期间生活力衰退的原因,我们在1962—1967年间用“狮选64”品种春植花生种子进行贮藏生理和技术的研究,结果如下。 1.荚果不同晒干程度贮藏试验的结果表明,入贮前及贮藏期间的种子含水量在6％以下的种子,在室温下贮藏202天(至翌年春播前)仍能保持较高的生活力,种子含游离脂肪酸较少,发芽率高达100％,出苗率达90—96％,发病率较低。含水量在6％以上,种子迅速变质,游离脂肪酸含量升高而发芽率和出苗率下降;发病率亦增加;种子含水量愈高,则游离脂肪酸含量和发病率愈高而发芽率和出苗率愈低。 2.种子在不同相对湿度中贮藏的试验结果表明,充分干燥(含水量在6％以下)的种子在50—60％以下的相对湿度中贮藏194—206天(至翌年春播前),仍能保持其生活力,种子含水量在6％以下,游离脂肪酸含量和发病率较低而出苗率较高(88—93％),幼苗生势健壮。贮藏环境中的相对湿度在60％以上,则种子含水量亦增加至6％以上,游离脂肪酸含量和发病率均增高而出苗率则下降。 3.几种不同贮藏方法的比较试验结果表明,用缸藏加生石灰并用泥封口的方法最好,用此法贮藏的种子在翌年春播时大田出苗率达84.8—96.3％。其次?
Earlier reports, autumn planting peanut seeds than spring peanut seeds have a strong viability, planting peanut seeds with autumn planting can increase the emergence rate. In order to understand the reasons for the decline of viability of spring peanut seeds during storage, we conducted the research on storage physiology and technology of spring peanut seeds with “Lion 64” varieties from 1962 to 1967 with the following results. 1. Different degree of dryness of pods The results of the storage test showed that seeds with moisture content under 6% before storage and during storage can maintain high viability at room temperature for 202 days (before spring sowing next year) , Seeds contain less free fatty acids, the germination rate as high as 100%, the emergence rate of 90-96%, the incidence is low. The content of free fatty acids increased with the water content above 6%, the seeds rapidly deteriorated, the content of free fatty acids increased while the germination rate and emergence rate decreased. The higher the seed moisture content, the higher the content of free fatty acids and the higher the rate of germination and emergence The lower. 2. The test results of the seeds stored in different relative humidity show that seeds which have been fully dried (moisture below 6%) are stored for 194-206 days at relative humidity below 50-60% (before spring sowing next year) Maintaining its viability, seed moisture content below 6%, free fatty acid content and incidence of low and high emergence rate (88-93%), seedling robust. When the relative humidity in the storage environment is above 60%, the seed water content also increases to above 6%, the content and incidence of free fatty acids increase while the seedling emergence rate decreases. Comparison of several different storage methods The results showed that the best way to store lime and seal with mud was that the seeds stored in this way reached 84.8-96.3% in the field in spring next year. Second?