Flowers are colourful and sweet-smelling to attract insects for pollination and animals for seed dispersal. Bark and Branches: barks are thin and smooth (no need for protection against weather) branches only on the top 1/3 of the trunks Roots: shallow and
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Managing the Root Zone in Soilless Culture Author: Eyal Ronen Haifa Chemicals Chief Agronomist In solid growing media‚ there are five important parameters that should be monitored around the root zone to optimize plant growth and yields. EYAL RONEN offers some guidelines on how to manage these parameters to prevent major crop problems‚ and explains the importance of measuring fertiliser solution at both the dripper and drainage points. General terminology Soilless culture‚ commonly referred to as
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(Hindi)‚ Ashwagandha‚ Avarohaka‚ Balya‚ Gokarna‚ Turangahva‚ Vajikari‚ Varada‚ Varahakarni‚ Vrsa (Sanskrit)‚ Winter cherry (English). Habitat: W. somnifera is found in India. Morphology: W. somnifera is a perennial herb covered with hairs. It has tap root; stem is herbaceous above and woody below. Leaves are in unequal pairs; flowers are greenish or yellowish; fruit s berry becoming red on ripening. Chemical composition: Alkaloids (anagrine‚ anaferine‚ cuscohygrine‚ hygrine‚ isopelletriene‚
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direction. Different parts of a plant exhibit different reactions to light. Stems exhibit positive phototropism while most roots exhibit negative phototropism. Geotropism is the growth response of a plant in response to gravity. Roots exhibit positive geotropism while stems and leaves exhibit negative geotropism. Hydrotropism is the growth response of a plant to water. Roots exhibit positive hydrotropism. Thigmotropism is the growth response of a plant to physical contact (touch). Plants that
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mangrove trees must withstand being submerged twice a day by saltwater tides. The soil in which these trees grow in maybe sand but it is mostly rich mud. This rich mud is high in nutrients but low in oxygen. Mangroves have these aerial and salt filtering roots and salt excreting leaves that help them occupy the fluctuating wetlands. Salinity‚ temperature and oxygen are all abiotic factors used to help with the growth of this ecosystem. Salinity is a measurement of the amount of salt in the water. To
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leaves travels down stems to the roots. Stems also store food for the plant. Roots: These anchor plants in the soil. Water and minerals are taken from the soil through the roots. Many plants such as carrots‚ store food in their roots. Seeds: these contain a tiny embryo of a plant inside. The seed halves contain food‚ which supplies energy and materials for growth until the plant grows its first leaves above the ground. ROOT In vascular plants‚ the root is the organ of a plant that
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2. Hibiscus rosa-sinensis Rose of China‚ China Rose‚ Shoe Black Plant. The species of hibiscus which seems to have the greatest number of variants is Hibiscus rosa sinensis. These plants appear to have innumerable variations in colour and shape in both single and double forms‚ due to the interest in these plants by early hibiscus fanciers who hybridised Hibiscus rosa-sinensis with other compatible species. Ross Gast in his Genetic History of Hibiscus rosa-sinensis traces the early movement
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Maya Angelou is a poet‚ author‚ actress‚ director‚ historian‚ educator‚ playwright‚ civil rights activist‚ producer‚ and a lecturer. She was born on April 4‚ 1928 in St. Louis Missouri. She has two brothers and is the oldest of three children. Her parents were Bailey and Vivian Johnson but they did not raise her. Her parents were divorced when she was three; she was raised by her grandmother in segregated Stamps‚ Arkansas. While living with her grandmother‚ she gained pride and religion as an important
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plate scraped‚ leaving the ring of root primordia intact‚ to stimulate root growth. Onions will be suspended to allow germination in 220-mL glass jars half-filled with mineral water for 72h in a 12h light/12h dark cycle at room temperature. For each series‚ the onion with the poorest root growth will be discarded. The onions will then be transferred to glass jars containing 0.625‚ 1.25‚ 2.5‚ 5‚ and 10 mg/mL of T. indica methanol leaf extracts to which the roots will be exposed for 48 h in the same
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daughter nuclei during division of cells Adaptations In charophyceans- layer of sporopollenin prevents exposed zygotes from drying out Allows plants to live further from water Derived Traits of Plants (5) 1. Apical meristems (elongate shoots and roots through primary growth) 2. Alternation of generations (multicellular diploid sporophyte-meiosis-haploid spores-divide mitotically-multicellular haploid gametophyte) a. Fertilization of haploid gametes=diploid zygote b. Diploid zygote=sporophyte generation
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