Effects of Chitosan on Growth and Yield of Native Black Glutinous Rice
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Abstract
Rice is an economic crop that must be developed all the time. and to find ways to increase productivity along with improving quality Especially in the process of increasing productivity. Chitosan is a biological substance that has the properties to stimulate growth and increase plant productivity. This experiment aimed to test the concentration of chitosan that affects the growth and yield of native black glutinous rice in Phu Po Sub-district, Muang District, Kalasin Province. By planning a completely randomized design, the experiment was divided into 4 experiments with 4 replications comparing the use of chitosan at concentrations of 0 ppm (control), 1 ppm, 2 ppm, and 3 ppm. Such assigned concentrations of chitosan would be sprayed 3 times on day 40, day 50, and day 60 after planting. The height of each plant, the number of plants per clump, the number of ears per clump, the number of seeds per spike, seed weight per spike, and total seed weight were measured and compared the values between the experimental groups. By experimenting in a hydroponic greenhouse. Department of Agriculture Chandrakasem Rajabhat University Between August and December 2022, a total of 120 days. The experiment found that Native black glutinous rice when sprayed with 2 ppm chitosan concentration resulted in native black glutinous rice plant height. number of trees per clump The highest number of ears per clump. And indigenous black glutinous rice when sprayed with chitosan at a concentration of 3 ppm resulted in the number of seeds per ear of native black glutinous rice. seed weight per ear and total seed weight increased Statistically significant (P<0.05). Compared to the control group that was not sprayed with chitosan, therefore, the use of chitosan at different concentrations at different periods affected growth. stimulation of flowering and especially used during the flowering period will result in the weight and quality of native black glutinous rice grains
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