【摘要】 本试验是在调查总结农民经验的基础上,系统地研究生姜各个不同生长时期植株各器官的发生、建成和生长动态。试验结果看出:生姜的生长过程有明显的阶段性,可以顺序地分为发芽、幼苗,旺盛生长和休眠四个时期,并根据生姜各个生长时期的生育特点,提出了相应的栽培管理的基本原则。更多还原

【Abstract】 Ginger(Zingiber officinale Rose.)is one of the major tuber crops in China,and it is of great importauce bearing on the daily life of people.In practices the cultivation of ginger according to it’s growth and development is a outstanding experience of our ginger growers. The aim of this experiment is to investigate systematically the re- gularity of growth and development of ginger on the basis of the experience of ginger growers,so that to find out the theoretical ba- ses for improving its cultural practices,thus to raise its yields and qualities still further. In this experiment,we selected“Lai-wu”ginger as studying mate- rial.The morphological characters,increment and growing trends of organs were observed measured. Based upon the experience of ginger growers and the results of our experiment,it was Shown the entire process of growth and develop- ment of ginger from planting to harvesting may be divided into four stages. 1.The sprouting stage—from emergence of the buds to the first leaf spread.The growth of the buds depends mainly on the nutrition of the seed piece,since there is no dormancy in ginger,during this stage,it is only necessary to furnish favourable conditions mainly the higher temperature for sprouting. 2.The seedling stage—from the first leaf spread to the plant with two or three branch stems.At the beginning of this stage,the pho- tosynthesis starts on and the seedling begin to make it’s independent living.But the increment of dry matter of the seedling is less. During this stage,it is necessary to step up the development of the root system of ginger and to strengthen the seedling with intensive c- ultivation. 3.The thriving growth stage—from the plant with two or three br- anch stems to the harvest of new tubers.The branch stem,leaf and the tuber all grow with great speed.The increment of dry matter of the plant is highest.During this stage,it is necessary to give some su- itable conditions for the expanding of the tubers. 4.The dormancy stage.After hervest,the tubers are stored and go into rest.During this stage,in order to protect the tubers of ginger from the cold and dry up,we must furnish suitable temperature and moisture.更多还原