共查询到20条相似文献,搜索用时 226 毫秒
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研究了花生种子含水量、贮藏温湿度、贮藏容器对花生种子活力的影响及其生理机制。结果表明,温度是影响花生种子活力及寿命的主要因素,花生种子在高温条件下贮藏活力下降快,在20℃以内种子受环境湿度影响较小,寿命长,贮藏9~12个月仍具有种用价值。种子含水量低贮藏寿命长,南方花生种子的安全含水量是5% ~6% 左右。湿度低种子贮藏寿命长,适宜的环境湿度似在52% 左右。研究还阐明了不同贮藏条件和种子水分对种子生理代谢的影响及与种子活力的关系,为春花生种子妥善贮藏提供了依据。 相似文献
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茶树种子是一个雏型的新植物,作为一种传播单位,它在结构和生理上都具有许多特性。当前在茶树栽培中营养繁殖已为人们广泛采用,但种子繁殖仍然有着重要的位置,而茶树育种工作中种子的作用就更为重要了。为了保持茶子具有良好的活力,长期以来就如何妥善贮藏茶子已进行了大量的研究工作和实践,总结出许多经验技术。但就贮藏过程中的生理生化研究还不多见。另外,人们认为茶子只有经过贮藏完成“后熟作用”后才能萌发生长的观点,近来也有较大的争议。为了探讨这些问题,我们就茶子贮藏中有关生理、生化指标的 相似文献
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黄桃富含丰富的维生素C以及人体所需的纤维素等多种微量元素,能够补充人体机能,而且黄桃还具有润肠通便、美容养颜、保护视力等功效,对人体健康也有好处.目前,国内果蔬市场上对黄桃的需求不断增加,为免出现供不应求的现象,必须加快黄桃优质高产栽培技术的推广与应用,基于此,该文结合黄桃栽培技术及储存方法进行深入探究,从科学选址、优... 相似文献
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Brown rot can lead to considerable fruit losses in peach orchards and cultural practices likely to contend this major disease have to be promoted. In order to limit peach brown rot incidence in a three-year-old mid-season maturing peach orchard of the cultivar ’Ruby Bright’, four combinations of irrigation and soil management treatments were assessed: conventional (Conv) irrigation (I) and soil management (S) (ConvI+ConvS); modified (Mod) irrigation and soil management (ModI+ConvS); conventional irrigation and modified soil management (ConvI+ModS); and modified irrigation and soil management (ModI+ModS). Conventional irrigation and soil management in the tree row consisted of irrigation scheduling using tensiometer readings and herbicide use, respectively. Modified irrigation and soil management in the tree row consisted of water deprivation during stage III of fruit development and ground cover with white clover, respectively. For four consecutive years (2010–2013), in the conditions of the Middle Rhone Valley in France, the lowest and highest brown rot incidence were detected under (ModI+ModS) and (ConvI+ConvS), respectively, whereas brown rot incidence under (ModI+ConvS) and (ConvI+ModS) was intermediate. This lower brown rot incidence under the modified treatments occurred from one to two weeks before fruit maturity and was still observed for several days in post-harvest storage. Ground cover with white clover was shown to limit water availability in the soil after heavy rainfall compared to bare soil, probably limiting peach growth variations, well-known as a possible source of detrimental microcracks at the fruit surface. This suggests that under our conditions appropriate cultural practices, water deprivation and a clover crop cover in the tree row possibly decrease peach disease sensitivity, which might lead to the reduced use of pesticide sprays to control brown rot in the orchard. 相似文献
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[目的]研究氰氨化钙不同施用量对桃树产量和品质的影响。[方法]以绿化9号为供试材料,研究氰氨化钙不同施肥量对桃树营养生长、产量和品质的影响。[结果]桃树施用氰氨化钙能明显增加根系数量、叶片面积和叶片厚度,显著提高叶绿素含量,增加桃产量,改善桃品质。盛果期桃树每棵施用氰氨化钙250g,0~40cm土层根系数量较CK增加41.94%,叶片厚度增加25.63%,叶绿素含量提高25.33%,单果重提高20.5%,单株产量增加21.6%,硬度提高12.5%,可溶性固形物增加13.2%。[结论]盛果期桃树氰氨化钙最佳施用量为250g/棵 相似文献
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