Extent of variation in some morpho-agronomic characters of cotton varieties [Philippines]
1984
Mercado, M.M.S. | Cabangbang, R.P. (University of the Philippines at Los Banos, College, Laguna. Coll. of Agriculture)
Results showed that a high degree of variability was present among varieties with respect to number of days to boll opening, weight per boll, plant height, internode length and dry matter yield. The fertilizer treatment did not produce significant variation in the morpho-agronomic characters studied except for number of bolls per plant. Moisture level produced significant differences in number of days to boll opening, root length, plant height and internode length. These plant characters decreased as the moisture level was reduced. There was significant interaction between fertilizer and variety in number of days to boll opening, weight per boll and plant height during the first week of observation. However, moisture x variety interactiion was not substantial in the morpho-agronomic characters evaluated. Simple linear correlation analyses showed significant positive correlation between number of days to boll opening and number of days to flowering, seedcotton yield and number of bolls per plant. Plant height was significantly and positively correlated with root length, stem diameter and dry matter yield but negatively correlated with seedcotton yield
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