role and deficiency symptoms of micronutrients in tomato
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Role and deficiency symptoms of micronutrients in Tomato. Role and deficiency symptoms of micronutrient in Tomato. Introduction. Micronutrients are used in very small amounts but are important to plant development as the major nutrients They improve the quality of produce - PowerPoint PPT PresentationTRANSCRIPT
Role and deficiency symptoms of micronutrients in Tomato
Introduction
Micronutrients are used in very small amounts but are important to plant development as the major nutrients
They improve the quality of produce
Micronutrient deficiencies are emerging in intensively cultivated lands
Micronutrients extensively studied for tomato are B, Fe, Mn, Mo and Zn
Role and deficiency symptoms of micronutrient in Tomato
Role of Boron in Plants
Essential for germination of pollen grains and growth of pollen tubes
Essential for seed and cell wall formation
Necessary for sugar translocation
Affects nitrogen and carbohydrate
Promotes fruit maturity
Role and deficiency symptoms of micronutrient in Tomato
Poor root growth Death of cells of shoot apexStems stiff and terminal buds die Lateral shoots develop giving plant flat top Leaves highly purple, brown and yellow tintedFruits pitted and corky areas in skin Ripening uneven and cracking of fruits
Application of borax 2.0-3.0 kg/ha can overcome deficiency. Foliar spray of 0.2 – 0.3% boric acid solution is also recommended
Boron deficiency symptoms
Role and deficiency symptoms of micronutrient in Tomato
Boron deficiency symptoms in tomato
Source: http://5e.plantphys.net/ article.php?ch =t&id=289 Source:http://www.agnet.org/library.php?
func=view&id=20110804101148&type_id=2
Role and deficiency symptoms of micronutrient in Tomato
Role and deficiency symptoms of Iron in Tomato
Role
Promotes formation of chlorophyll Acts as an oxygen carrier Part of reactions involving cell division and growth
Deficiency Symptoms
Leaves show strong chlorosis at the base with some green netting
Interveinal chlorosis of the youngest leaves results into overall chlorosis
Bleached areas often develop necrotic spots
Role and deficiency symptoms of micronutrient in Tomato
Iron deficiency symptoms in tomato
Source: http://5e.plantphys.net/ article.php?ch=t&id=289
Source:http://www.agnet.org/library.php?func=view&id=20110808112105&type_id=7
Role and deficiency symptoms of micronutrient in Tomato
Role and deficiency symptoms of Zinc in Tomato
Role Aids plant growth hormones and enzyme system Necessary for chlorophyll production Necessary for carbohydrate formation Necessary for starch formation Aids in seed formation
Deficiency Symptoms
Yellowing between veins of new growth Terminal (end) leaves may form a rosette
Zinc deficiency symptoms in tomato
Source: http://5e.plantphys.net/article.php?ch=t&id=289
Role and deficiency symptoms of micronutrient in Tomato
Role and deficiency symptoms of Manganese in Tomato
Role Functions as a part of certain enzyme systems Aids in chlorophyll synthesis Increases the availability of P and Ca
Deficiency Symptoms
Slow plant growth Younger leaves turn pale yellow, often starting
between veins. May develop dark or dead spots Leaves, shoots and fruit diminished in size Failure to bloom
Role and deficiency symptoms of micronutrient in Tomato
Manganese deficiency symptoms in tomato
Source:http://5e.plantphys.net/article.php?ch=t&id=289
Source:http://apps.rhs.org.uk/advicesearch/Profile.aspx?pid=456
Role and deficiency symptoms of micronutrient in Tomato
Role and deficiency symptoms of Molybdenum in Tomato
Role Required to form the enzyme "nitrate reductase”
Aids in the formation of legume nodules
Needed to convert inorganic phosphates to organic forms in the plant
Deficiency SymptomsOlder leaves yellow, remaining foliage turns light green Leaves can become narrow and distorted
Role and deficiency symptoms of micronutrient in Tomato
Molybdenum deficiency symptoms in tomato
Source:http://5e.plantphys.net/article.php?ch=t&id=289
Role and deficiency symptoms of micronutrient in Tomato
Each plant prefers a specific pH range to be able to access the micronutrients nutrients in the soil. The pH should be close to 7 for better absorption of nutrients
Plant micronutrient deficiencies often manifest as foliage discoloration or distortion
If micronutrient deficiency persists it should be corrected by external application in right quantity in right time to get optimum yield
Let us sum up
Role and deficiency symptoms of micronutrient in Tomato