International Sugar Journal

Effects of variety, environment and management on sugarcane ratoon yield decline † [Full subscriber]

Factors influencing ratoon yield decline (RYD) are often unclear and difficult to unravel. The objectives of this study were (i) to explore the relative contributions of variety, environment and management to RYD, and (ii) to evaluate a method of detecting statistical differences in RYD between treatments. Four sets of trials, comprising six irrigated variety trials from South Africa and Swaziland (set 1), four variety trials from the rainfed KwaZulu-Natal region (set 2), three cycles of a long-term burning and trashing trial (set 3), and two variety x nematicide trials (set 4) were analysed. Yield data were collected over six or…

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