The Relative Growth Rates of an F1 Hybrid of Gossypium hirsutum L. and Its Two Parents¹

The Accuracy of Gossypol Determinations From Open Pollinated vs. Inbred Cotton Seed1

“…The data in table 2 give the gossypol content of some F 1 hybrids and their high and low parents. Since o~en _pollinated seed was analyzed, the data appear to mdiCate dominance for gossypol content but some other observations should be considered.…”

Cotton

“…This fact alone tends to exclude much obsolete varietal material from consideration as possible parents for hybrids. In addition, Harris and Loden (1954) noted that hybrid vigor was evident in dry weight of stems, dry weight of leaves, dry weight of fruits, total dry weight of above-ground plant parts, number of squares, and number of fruits. Davis (1978) reviewed extensively the heterotic expression of many agronomic characters in cotton hybrids.…”