Thesis On Wheat Crop

Thesis On Wheat Crop-37
There were genotypic differences for both seed and embryo size but the two were not related.

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Experiments showed that within genotypes larger seed had larger embryos which, on germinating, produced longer coleoptiles, more vigorous seedlings resulting in higher grain yields.

Rate of emergence from normal sowing depths was not affected.

Genotypic variability occurred for Zn and Mn efficiency and also for Zn and Mn accumulation in the seed.

Yallaroi, the durum, performed poorly in these experiments.

There is genetic variability for embryo size, coleoptile length, nutrient efficiency and nutrient loading in to the seed which can be exploited by breeders.

Agronomically, seed quality can be improved by managing seed crops to aid accumulation of mineral nutrients in the seed and then selecting, by grading, only large seed for sowing.It is concluded that sound healthy seed does vary in quality and this affects seedling vigour, crop establishment and grain yield.Seed source can affect genotype performance in evaluation trials.The quality of seed from different positions on the mother plant was examined for ten genotypes.Genotypes showed different potential for loading nutrients, but generally seeds of the main tiller were heavier and accumulated higher levels of nutrients than those from second tillers.By continuing to use this site, you consent to the use of cookies.We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our services.These seed source effects and interactions with genotype were more evident during early growth stages.Fanners appreciate the importance of sowing plump seed free of weather damage and disease but they have little knowledge of the physiological quality of that seed.A series of experiments were conducted to investigate aspects of seed quality.A range of bread wheat genotypes important in South Australia were used for laboratory, greenhouse and field experiments. A preliminary set of field trials involving seed from eight different sources of each of eleven genotypes were evaluated at eight wheat growing locations in South Australia for two years.


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