Abstract
Experience with hybrid maize indicates the utility of diverse cytoplasms as a source of cytoplasmic male sterility. Crop heterogeneity is desirable for the sustainability of commercial hybrids. We studied the morphological and physiological characters of male sterile lines belonging to diverse cytoplasm. We studied eight male sterile lines belonging to wild abortive types (V20 3A, Zhengshan 97 A, BO A, Jin 23 A, and Zhi A), IDR or Indonesian paddy rice type (U1 A), dwarf abortive type (Xieqinzao A), and BT or japonica type (80-4 A) during the winter season of 1993-94 in a randomized block design with three replications. Each line was planted in a single row, with a spacing of 20x20 cm. The crop was maintained as per recommended practices.
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