Multiple Irrigation Levels Affect Boll Distribution, Yield, and Fiber Micronaire in Cotton

Chase Snowden, Glen Ritchie, Justin Cave, Wayne Keeling, Nithya Rajan

Research output: Contribution to journalArticle

Abstract

The boll distribution characteristics of upland cotton (Gossypium hirsutum L.) cultivars are related to cotton maturity and can interact with environment and management practices to determine yield and fiber quality. The boll distributions of six cotton cultivars under four irrigation levels were compared in 2011 and 2012 on the Texas High Plains. In 2011, a year of severe drought and heat, all cultivars had relatively compact fruiting patterns and increases in irrigation affected both boll accumulations up the plant and second-position fruiting sites. In 2012, which was less hot and dry than 2011, all cultivars produced more fruit on higher sympodial branches; however many cultivars followed unique patterns of boll accumulation with increased irrigation. Later-maturing cultivars significantly increased boll production at higher portions of the plant while early maturing cultivars retained more bolls at the bottom of the plant. One cultivar, DP1311, increased yield at the second posit
Original languageEnglish
Pages (from-to)1536-1544
JournalAgronomy Journal
StatePublished - Nov 2013

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