if a plant shows a symptom which could develop due to deficiency of more than one nutrient, how would you find out experimentally, the real deficient mineral elements ?

Deficiency of mineral elements showing the symptoms at first in older leaves are:

Browning of cauliflower takes due to deficiency of which one of the following elements

A plant is growing in soil Which becomes nitrogen deficient due to some reason the deficiency symptoms due to nitrogen will b seen

A plant is showing symptoms like chlorosis of younger or older leaves, production of sterile flowers and grey spots. It may be due to the deficiency of

A plant is showing symptoms like chlorosis of younger or older leaves, production of sterile flowers and grey spots. It may be due to the deficiency of

It is observed that deficiency of a particular element showed its symptoms initially in older leaves and then in younger leaves. (a) Does it indicate that the element is actively mobilised or relatively immobile ? (b) Name two elements which are highly mobile and two which are relatively immobile. (c) How is the aspect of mobility of elements important to horticulture and agriculture ?

Which of the following are incorrect as a criterion for the essentiality of an element . i. If the concerned element is deficient another element can fulfil the need of it ii. The plants would complete their life cycle irrespective of the absence of deficiency of the elements. iii. The elements have indirect involvement in the metabolism of plants . iv.The elements must be absolutely necessary for supporting normal growth and reproduction. (a) i ,ii ,iii ,iv (b) i,ii (c) i, ii, iii (d) ii , iii

How long does it take form marigold, rice, wheat, coconut, mango plants to come to flower? In some plants, where flowering occur more than once, what would you call the inter-flowering period-juvenile or mature ?

This law was proposed by Dalton in 1803 . According to this law , if two elements combune to form more than one compounds ,the masses of one element that combine with a fixed mass of the other element, are in the ratio of small whole number. For exemple, hydrogen combines with oxygen to form two compounds ,namely, water and hydrogen peroxide. Here, the masses of oxygen (i.e, 16g and 32g) which combine with a fixed mass of hydrogen (2g) bear a simple raio, i.e, 16 :32 or 1 :2 . An element forms two oxides .In one oxide ,one gram of the oxide containd 0.5g of the element. In another oxide, 4g of the oxide contains 0.8g of the element . Show that these data confirm the law of multiple proportion.

Name the following: The condition that a person suffers due to deficiency of one or more essential elements in food.