The Journal of the Department of Agriculture, Victoria . d for this. Plantings of shrubs and trees may now be made,and wherever flowering shrubs have ceased to bloom, thev may be cultivation and watering will be necessary, especially if theweather continues hot and drv. WHEAT AND ITS CULTIVATION. {Continueii from page loi.)A. E. V. RicJiardson, , {Agric.) Agricidiural Superintendent. II.—ITS STRUCTURE AND NUTRITION. One of the most interesting chapters in the hstory of agriculturalscience is that relating to the discovery of the food requirements of than a
The Journal of the Department of Agriculture, Victoria . d for this. Plantings of shrubs and trees may now be made,and wherever flowering shrubs have ceased to bloom, thev may be cultivation and watering will be necessary, especially if theweather continues hot and drv. WHEAT AND ITS CULTIVATION. {Continueii from page loi.)A. E. V. RicJiardson, , {Agric.) Agricidiural Superintendent. II.—ITS STRUCTURE AND NUTRITION. One of the most interesting chapters in the hstory of agriculturalscience is that relating to the discovery of the food requirements of than a century of careful scientific investigation was necessary toestablish the flndnrrental facts of plant nutrition and on this basic know- 91111 7. GERMINATING ViHEAT GRAINS. ledge the superstructure of modern agricultural science rests. The aimof the present article is to supply a simple account of the more importantof the facts of plant nutrition by using our staple farm crop as an illus-tration. l82 Journal of Agriculture, Victoria. [lo March. LONGITUDINAL SECTIONTHROUGH THE ROOTCAP OF AYOUNG WHEAT ROOT. In the preceding article we noted that thewheat kernel consists of three distinct por-tions (i) Embryo or germ (2) Protectivecoats (3) Endosperm—the latter consistingmainly of starch and serving as reserve ma-terial for nourishing the young plant. To bring about the germination of thiskernel three factors are necessary, namely(i) moisture, (2) air (3) warmth. Underthese stimulating agencies the germ soonenlarges and the plumule and radicle burst-ing through the pericarp form respectixelythe miniature stem and the root of the youngplant. The first supply of food for the youngplant is derived from the reserve materialsof the endosperm. As these reserves offood, however, are insoluble in water, theyare manifestlv incapable of passing out ofthe cell walls in which they are must be brought into a condition inwhich they may diffuse readily from cell tocell.
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