setting, large seed size , high growth rate and high Harvest index.
The productivity of pigeonpea has been hampered by several abiotic factors such as waterlogging, salinity, heat and heavy metals. Among them, waterlogging is the main constraint and it is estimated that each year more than 30% of the pigeonpea growing areas suffer by water-logging (ICRISAT, 2009). In India average yield losses of pigeonpea crops are estimated at 0.32 m tons, costing about US$22 m (ICRISAT, 2009). A key feature of waterlogging is depletion of oxygen which leads to number of problems such as, alteration of plant morphology and metabolism, and inhibition of photosynthesis, chlorophyll degradation and early leaf sencencse (Voesenek and Bailey-Serres, 2013; Jackson and Colmer, 2005). In plants the formation of aerenchyma is a marker adaptive response to flooding or waterlogging (Thomas et al., 2005). Plants respond to waterlogging by producing metabolic energy from fermentative glycolysis rather than from oxidative respiration (Kumutha et al., 2008; Ismail et al., 2009; Capon et al., 2009). Waterlogging accelerates the production of ethylene hormone which plays important role the formation of adventitious roots (Shiono et al., 2008; Chen et al., 2002). Ethylene induced adventitious roots formation has been considered to be a major adaptive mechanism to waterlogging stress (Pezeshki, 2001).
In India, waterlogging is one of the major problems for the pigeon pea production and productivity, where…
to the experiment may be adding more samples, monitoring every day, better organisation and collaboration between the class to get more accurate results, and adding more amounts of gibberellic acid to avoid drying and to increase germination. A follow up experiment may be how gibberellic acid affects the growth of the plants over time.
Hypothesis Ha1 that states that higher concentrations of gibberellic acid (500 to 1000 ppm.) will promote the germination of the Eruca sativa seeds has…
line in Graph 1. Moreover, since the concentrations differed only by 0.25g/mL, then the probability concocting inappropriate E. microcorys substances became more probable between the middle three concentrations. Though, if the data collected 0.5g/mL was treated as outliers, then the E. microcorys allelopathic effect on the R. sativus seeds would be discerned more clearly and precisely.
The implications of data to a pertinent situation would have included further support for the use of…
Walking down the trail the branches covered in leaves were close enough to tickle my shoulder. Flowers of bright, vibrant colors were everywhere. I could see red, pink and blue colors, it was as if I was looking at a rainbow, but-they-were-flowers. Suddenly this amazing sweet smell entered my nose, the smell turned into a taste that made my mouth water, what is that? Kiwi, my scented hand lotion, it is Kiwi hand lotion, the smell is adding to the beauty that surrounds me. Why are all these…
bee cut out
Paddle pop sticks
NSW Science and technology syllabus
- A student describes external features, changes in and growth of living things ST1-10LW
Board of Studies, Teaching and Educational Standards NSW [BOSTES], 2015).
- Science / Year 1 / Science Inquiry Skills / Processing and analysing data and information / ACSIS212: Through discussion, compare observations with predictions
- Science / Year 1 / Science Inquiry Skills / Communicating /…
Germination- Germination is when seeds are spread/blown somewhere else and grow into new plants or when a seed is planted by someone in the ground. Although there are many important factors that are involved in seed germination the three most important ones are water, sunlight, and temperature. Plants are not able to germinate if the seed is watered too much or too little. Plants are not capable to grow food from sunlight when they are seeds, so the seed will use other things, such as water, to…
measures. The study also aims at the effect of different heights on the genetic diversity of plants O. ficus and the study of biodiversity within this species. Where it is important in the ecosystem of the reserve. Using a technique inter-simple sequence repeat (ISSR) (Spooner,2005). This technique applied genetic identity study of O. ficus and useful for taxonomic studies of closely related O. ficus species. In addition, ISSRs involving gene mapping studied of the O. ficus. ISSRs are DNA…
Propagation: Western White Pines are normally propagated by seed. The seeds must go through cold stratification in the freezer for about 60 to 90 days. After that they must be soaked in lukewarm water for 1-2 days. Once that time has passed place the seeds in a zip-lock bag and place in the fridge for another 60 to 90 days. Once that process in complete plant the seed in a pot that is 1 part pine bark, 1 part peat moss and one part garden soil or potting pix. Place the pot in full sun.…
Is the Spider Monkey Worth Saving?
There are less than 2,000 packets of spider monkeys left in the world. Also spider monkeys give birth to only one offspring every three to four years. The spider monkey is not worth trying to save. There are many reasons of why they aren’t worth saving. Some of these reasons include money, reproduction, and the activity of spider monkeys.
Spider monkeys live in the tropical…
First, there is the testa (seed coat). It is the outside layer
protecting the inside of the seed. On the side of the seed, there is a tiny hole called the micropyle.
Water can be taken through the hole when it is ready to germinate. Inside the seed near the
micropyle, there is a root called a radicle. When the seed begins to grow the radicle will come
out the micropyle. The seed coat can protect the seed from many factors such as freezing
temperatures, heat, radiation, or acidity.