#Plant hormones

[tenth-sentence]

Studies of the "foolish seedling disease" of rice led to the discovery of the gibberellin group of growth hormones (Figure 15.10).

"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.

[oaresearchpaper]

Optimizing Rooting of White Potato Cuttings: A Study of Three Growth Conditions

Abstract

The need to produce a cheap alternative and farmer level technology in the production of clean planting materials of White Potato (Solanum tuberosum L.) prompted the investigation on the rooting response of clones from stem cuttings of different age and number of nodes under different concentrations of synthetic plant hormone Alpha-Naphthalene Acetic Acid (ANAA). A zero generation (G0) mother plant was used as a source of clones to examine whether it could produce roots in a sterilized medium. In a replicated split-split plot experimental design with three factors such as the age of the mother plant, number of nodes and levels of growth regulator, we found that roots emerged from clones 18 days after planting in a sterilized river sand. Significant effect on rooting was influenced by the age of cuttings (p=0.0058), number of nodes (p=0.0058) and ANAA (p=<0.0001). Moreover, significant interactions were found among age of cuttings, number of nodes and ANAA concentrations on rooting (p=0.0044). Implications for the feasibility of mass producing clean planting materials from cloning G0 mother plant are discussed.

Introduction

White potato (Solanum tuberosum L.) is a perennial crop belonging to the Solanaceae family grown mainly for its tubers (Spooner et al., 2014). First cultivated 8000 years ago by the Peruvian farmers in Peru’s Central Andes; now it has more than 4000 different cultivars grown globally (Niekerk et al., 2016; Lutaladio et al., 2009). It was initially introduced in Europe in the sixteenth century and was subsequently distributed throughout the world. Potatoes are the world’s primary non-grain staple food in several countries in Europe and some parts of America due to its nutrient content; with China, India, Ukraine and Russia as top producers (Lutaladio et al., 2009; Shahbandeh, 2022).

The biggest obstacle of the white potato industry in Asia, particularly Philippines is the source of clean planting materials, because potatoes are attacked by bacterial wilt disease caused by pathogen Ralstonia solanacearum. The conventional method of white potato propagation is through the use of tubers, but the risk is high. Other methods are the use of True Potato Seeds (TPS), and through stem cuttings (Morais et al., 2018; Shiwani et al., 2021). At present, the Department of Agriculture’s Northern Mindanao Agri Crops and Livestock Research Complex (DANMACLRC) uses the tissue culture technology to mass produce seedlings and tubers as the source of potato clean planting materials, but cannot cope up with the current demand; thus there is pressure to explore other methods.

Numerous studies were conducted to explore and enhance the propagation of potato through stem cuttings. The work of Zaki and Moustafa (2018) for example, used Indole Acetic Acid (IAA) and Indole Butyric Acid (IBA) at higher concentrations reaching up to 6000 parts per million (ppm) but rooting responses of potato varieties tested differ significantly. Ezzat (2016) dipped the stem cuttings for 1 minute to various rooting hormones such as Indole-3-butyric acid Potassium salt (K-IBA) at 1000 ppm, IAA at 250, and 1-Naphthaleneacetic acid NAA at 500 mg/L. The same hormone IAA was tested by Nikmatullah et al. (2018), but other factors such as age of mother plant and number of nodes was included.

In this study we explored the responses and interactions at different ages of Granola white potato stem cuttings, number of nodes, and levels of hormones in terms of its rooting ability and growth. Results and its potential for tuber production are discussed.

Source : Optimizing Rooting of White Potato Cuttings: A Study of Three Growth Conditions | InformativeBD

[biology-geology-beaches-india]

TSRNOSS, p 689.

[taimio]

Decoding Plant Growth: How Hormones Shape the Botanical World

Welcome to the mystery of unlocking the secrets of plant growth! In this article, we'll be exploring plant hormones and the role they play in the development of a healthy and abundant garden. Plant hormones help control and regulate the growth of plants by influencing cell growth and differentiation, ultimately aiding in their response to environment changes. We'll discuss the different types of hormones produced and how they interact with the environment and other stimuli. Whether you're looking to give your garden a boost or just looking to understand the science behind plant growth, this article will help you unlock the power of plant hormones! ```html

Unlock the Secrets of Plant Growth: Exploring Plant Hormones

I never thought I’d get emotionally attached to a houseplant. Then came my fiddle-leaf fig, which seemed determined to stage a daily drama—one day thriving, the next day drooping like it had just heard bad news. It wasn’t until I learned about plant hormones that I finally cracked the code to keeping it happy.

Plant hormones are like a plant’s internal messaging system. These chemical signals orchestrate everything from growth spurts to flower production, even how a plant reacts to environmental stress. Think of them as the backstage crew making the magic happen while the leaves and blooms take center stage.

The Plant Hormone Dream Team

There are five major players in the plant hormone world, and each one is a multitasking genius:

Auxins: The architects of growth, helping plants elongate stems and roots.

Gibberellins: The cheerleaders, promoting seed germination and flowering.

Cytokinins: The multitaskers, balancing growth between roots and shoots.

Ethylene: The storyteller, responsible for ripening fruit and dropping leaves.

Abscisic Acid (ABA): The survivalist, helping plants endure stress like drought.

Each hormone brings its own flair to the table, but together, they turn a simple sprout into a masterpiece of nature. It’s like a plant version of an Avengers team-up. (Cue the dramatic music!)

Surprising Lessons from a Wilting Monstera

Last winter, my monstera plant started looking like a sad, floppy mess. At first, I blamed myself for overwatering, but the real villain was ethylene. During colder months, ethylene production can spike, leading to leaf drop or slower growth. The solution? I moved the plant out of drafts and gave it a pep talk—just kidding, I adjusted the humidity and its light source.

Understanding plant hormones isn’t just science—it’s a superpower for plant lovers.

When you realize how hormones like auxins direct root growth or how ABA puts plants in survival mode during drought, you stop guessing and start thriving. It’s plant care on another level.

Hormones in Action: The Cool Science Stuff

If you’ve ever noticed a plant bending toward sunlight, you’ve witnessed auxins in action. These hormones redistribute themselves to the shaded side of the stem, elongating the cells there and causing the plant to tilt. Cool, right? It’s like your plant is doing yoga to stretch toward the light!

Or take gibberellins—they’re the reason tiny seeds can grow into towering sunflowers. By breaking dormancy in seeds, gibberellins kickstart growth like a caffeine shot for a groggy Monday morning.

The Takeaway

Think of plant hormones as your secret weapon for healthier, happier plants. Whether you’re growing herbs on your windowsill or tending to a jungle of houseplants, understanding these tiny chemical messengers will save you time, energy, and frustration. You’ll even start to see your plants as dynamic, responsive little beings.

Ready to dive deeper into the science of plant care? Check out my full guide on plant physiology. Trust me, your plants will thank you by sprouting new leaves before you know it!

In the end, caring for plants is as much about understanding their language as it is about watering and sunlight. And thankfully, their hormones make them surprisingly chatty—if you know how to listen.

``` Learn more about gardening with Taim.io!

[jaiminiofficial]

What are plant hormones

What are plant hormones what are plant hormones The Way In Which Hormones Regulate Human Bodily Functions . In The Same Way, Different Types Of Hormones Control The Activities Of Plants (Respiration, Growth, Flowering, Leaf Formation And Fall, Branch Formation, Fruit Formation, Etc.) . These Plant Hormones Are As Follows 1. Auxin : Its Chemical Name Is Indole Acetic Acid (IAA). It Is…

[whats-in-a-sentence]

Several hormones provide positional cues and signals for growth and differentiation of different cell types and tissues (Figure 19.43). (...) Simultaneous application of auxin and gibberellins prevented the abnormalities observed in the gibberellin treatment alone, and stimulated cambium division to an extent not seen in the gibberellin and auxin treatment alone, suggesting that the two hormones act synergistically (see Figure 19.43). Metabolic profiling and expression of several genes from the gibberellin biosynthetic pathway indicate that gibberellin metabolism in the wood-forming tissues also involves transport of gibberellin precursors from the phloem laterally through the rays into the differentiating xylem where they are then converted to bioactive forms (see Figure 19.43). (...) Cytokinin has also been implicated in regulation of secondary growth (see Figure 19.43).

"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.

[bkms07]

Class _(10)_Plant Hormones

Class _(10)_Plant Hormones (উদ্ভিদ হরমোন):-

All Question (সমস্ত প্রশ্ন) :-

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[theambitiouswoman]

Herbs to help you regulate cortisol and stress 🌿🍵🧚

🍃 Chamomile when you have an anxious stomach

🍃 Valerian when your thoughts don’t let you sleep

🍃 Skullcap when you feel muscle tension from stress

🍃 Holy basil when you’ve been high stress for days

🍃 Rhodiola when you feel burnt out from stress

🍃 Gotu kola when stress is causing you brain fog

🍃 Passion flower when you feel irritable and snappy

[mindblowingscience]

Scientists have discovered how plants adapt their root systems in drought conditions to grow steeper into the soil to access deeper water reserves. Plant scientists from the University of Nottingham, in collaboration with Shanghai Jiao Tong University, have identified how abscisic acid (ABA), a plant hormone known for its role in drought response, influences root growth angles in cereal crops such as rice and maize. The results have been published in Current Biology.

Continue Reading.

[tenth-sentence]

Some hormones act as positive regulators of senescence, while others act as negative regulators.

"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.

[kayvsworld]

having an allergic reaction to Something and not knowing What is like. somewhere in this airbnb is a spooky murderer with a knife and he gives you the sniffles or whatever

[itsays]

ok hot take bls taking over the thai drama insdustry kinda worst thing that could've happened ever. and i am talking dramas not lakorns, we no longer have a nadao to make quality dramas where the main point was to tell a compelling story rather than to just be fan service. and that's all the industry is rn. the exceptions are far and few between omg. once gmmtv got a hold of their very own kpop-like formula it was over for everyone. they opened a sick and twisted portal

[eatclean-bewhole]

[whats-in-a-sentence]

A simplified model for the antagonistic interactions between cytokinin and strigolactone is shown in Figure 19.32.

"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.

[murducks]

i like desperately need to be studying for my botany exam on friday but actually my brain is being occupied by some redhead with identity issues