Deriving a Large‐Seeded Switchgrass Population using Air‐Column Separation of Parent Seed1
- 1 January 1987
- journal article
- research article
- Published by Wiley in Crop Science
- Vol. 27 (1) , 147-148
- https://doi.org/10.2135/cropsci1987.0011183x002700010035x
Abstract
Selection for seed size is important in native, warm‐season grass improvement programs because of the positive correlation between seed size and seedling vigor. Bulk seed from a switchgrass (Panicum virgatum L.) population of 750 spaced plants from a field nursery was separated into four weight classes (174.1, 190.5, 209.5, and 225.8 mg/100 seeds) utilizing a South Dakota Seed Blower. A highly significant (P < 0.01) linear relationship was detected between mean 100‐seed weights of weight classes and mean seed weights of open‐pollinated, spaced‐planted progeny produced from these classes. Highly significant differences in mean seed weight also existed among plants within weight classes. In switchgrass, high seed weight was an effective selection criterion for increasing the seed weight of progeny from a bulk seed lot.Keywords
This publication has 3 references indexed in Scilit:
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- The Influence of Seed Weight on Seedling Vigour in Loliun PerenneAnnals of Botany, 1966
- Seed Size and Seedling Vigor in Crested Wheatgrass1Agronomy Journal, 1954