【摘 要】
:
探讨汕优多系1号(珍汕97A×多系1号)杂稻组合高产制种技术,以提高制种产量,加速其推广应用。结果表明:影响汕优多系1号制种产量的主要因素是母本亩穗数,实现高产的主要途径是增穗、保粒、
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探讨汕优多系1号(珍汕97A×多系1号)杂稻组合高产制种技术,以提高制种产量,加速其推广应用。结果表明:影响汕优多系1号制种产量的主要因素是母本亩穗数,实现高产的主要途径是增穗、保粒、提高异交结实率。应用父母本的时差、叶差合理安排播差期,采用1期父本大双行确定适宜的行比,配套培育壮秧,规格开厢插足基本苗,合理进行肥水管理,科学喷施“九二0”是夺取制种高产的主要技术措施。
To discuss the high-yielding seed production techniques of hybrid rice combination Shanyou No.1 (Zhenshan 97A × Multi-line No.1) in order to increase seed production and accelerate its popularization and application. The results showed that the main factor influencing the yield of Shanyou multi-line 1 seed production was the number of ears per acre. The main ways to achieve high yield were increasing ear and grain retention and improving the rate of outcrossing and seed setting. Application of the parental time difference, leaf difference reasonably broadcast sowing period, using a paternity big two lines to determine the appropriate ratio, supporting the cultivation of strong seedlings, specifications open box to meet the basic seedlings, reasonable fertilizer and water management, scientific spraying “nine Two 0 ”is the main technical measure to seize high yield of seed production.
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