Cotton germination

Seed Germination. Across the American cotton belt, cotton germinates under environmental stresses such as low soil temperature, moisture deficit or excess, oxygen deficits, and mineral extremes. Seed treatments to increase tolerance to early season stresses would be very beneficial. When large scale replanting depletes the best seed, lower quality seed must be used. So any treatment which would improve the performance of such seed, even under favorable environmental conditions, would be valuable. In the future, plant breeders may select breeding lines for... 

Strigol (I), Isolated from cotton root exudates, Is a very effective germination stimulant for wltchweed [e.g. Strlga aslatlca (L.) Kuntze] seed (1). Structure I depicts the relative... 

The germination stimulant or stimulants from host plants have not yet been identified, but research on isolation and identification of these allelopathic compounds continues. Other nonhost plants, such as cotton, also release chemicals which stimulate the germination of witchweed seed and these crops can replace the cereal crops in witchweed-infected fields. If no acceptable host is present, the witchweed plant is unable to mature and produce seed. The importance of cereal crops as a staple food in underdeveloped countries makes growth of nonhost crops only partially acceptable, and there are numerous wild hosts that allow the witchweed to germinate, mature, and produce more seed (several thousand seeds can be produced by a single plant). Nevertheless, application of either natural or synthetic stimulants in the absence of a host plant is an effective way of reducing and eventually eliminating the witchweed problem. 

Uses Pre-emergence herbicide used in soil to control germinating broadleaf grasses and weeds in crops such as apples, cotton, grapes, pears, pineapples, and alfalfa sugar cane flowering depressant. 

Plants, fruit Green leaves, fruit Sugar beet, carrots Germinating barley Sugarbeet, molasses, cotton seed (8%)... 

The level of the raffinose family of oligosaccharides has been shown to decrease during the germination of seeds of various species (see also, Ref. 12), notably, barley,618 broad bean,22 coffee,630 com,631 cotton,20,8318 lupin,632 pea,833,834 Pinus sp.,635,638 rice,637 runner bean,822 soy-... 

The seeds must be v/ell dried before use. It is said that seeds which have been stored for more than a year and which have lost their germinating pov/er are the best to use. Commercial seed contains a small amount of cotton and dust which must be removed with a suitable sieve. This is important to avoid residual fire.sparks among the seeds and to obtain good bursting charge grains. 

Seed Treatments. Several efforts to improve seed germination chemically have been made in recent years. The inhibition of lateral root development in cotton seedlings which can result from exposure to the... 

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