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Journal of Integrative Plant Biology, EarlyView.

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Abstract

Genetic improvement via crossbreeding has been widely used in aquaculture production. In this study, we conducted intraspecific hybridization using three consecutive generation selected strains of Crassostrea gigas from China (C), Japan (J), and South Korea (K). Six hybrid lines and three purebred lines were constructed and their growth and survival rates were recorded to evaluate the heterosis and combining ability. The crosses of CJ (C♀ × J♂) and CK (C♀ × K♂) displayed higher heterosis for survival and growth during the larval to the adult stage. Specifically, the survival and growth rates of CK improved by 45.41% and 13.97%, respectively, compared to the KK group. At the grow-out stage, the survival rate and shell height of CJ were 34.23% and 15.87% higher than the JJ group. The general combining ability (GCA) of strain C was consistently positive at various ages, ranging from 1.36 to 4.68. The special combining ability (SCA) of the six hybrid combinations varied with age, yet the CJ and CK cross consistently maintained positive SCA values. These results indicate that strain C is a superior parental line and that CJ and CK represent optimal hybrid combinations. By crossing selected oyster lines, hybrids with enhanced survival and growth performance can be produced.

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The last time I visited Tanya Bednarksi’s Seattle garden I ended the visit wondering about a neighboring garden across the street. This time (during the optional bonus day of the ’24 Garden Fling) the neighbor’s garden was part of the tour, and I spent a lot of time there, so I just made a quick zip around the Bednarksi garden. Afterall I had to wander in to gaze upon the playful clipped green balls and bright red glass spears. 

This tightly designed area is so fun to be in. I could never have a garden like this (so few plants), but it’s a fantastic space.

At the opposite end of the long narrow front garden is this rectangular stone trough filled with water. There is also a sitting area I neglected to photograph.

From the back of the home there’s an expansive view of Lake Washington and the tall buildings of downtown Bellevue, WA, in the distance.

On to the Pepper garden—my last garden visit of the ’24 Fling (I still have several gardens to write about though). I first saw this garden the same weekend (in June of ’22) that I saw the Bednarski garden. 

You walk down this narrow breezeway…

And emerge in the back garden right on the shores of Lake Washington.

During my first visit (here) I was very focused on the water view. This visit I took my time getting there…

The fence that separates the garden from the rocky shore is new, put in place to keep marauding beavers out.

(I think this was the only time the rainbow chairs were empty during our visit)

The garden description in our Fling booklet says those bad beavers hauled off most of the garden’s woody shrubs, roses and small trees—and I thought my raccoons were destructive!

The groundcover on the granite stairs was in full shocking pink bloom during my last visit, this time the stone itself was my focus.

The Pepper’s were kind enough to let us eat lunch in their garden, so that’s why we’re all gathered up around the house.

The garden between the lawn and the water is designed as a pollinator meadow.

The strip of plantings is small, but packs a colorful punch.

Finally two stone/cement planters that caught my eye. I really liked this one.

And I used to have one like this. I hauled it (and a much larger, much heavier one) with me on my moves from Spokane to Seattle, back to Spokane, then down to Portland, and finally gave it away to a friend here. I loved that thing, but it didn’t really fit the style of my garden in Portland.

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Orthopterum waltoniae is a dwarf succulent shrublet with short branches that bear opposite, lance-shaped leaves. It can grow up to 12 …

The post Orthopterum waltoniae appeared first on World of Succulents.

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Award-winning journalist and climate-resilient gardening expert Kim Stoddart reveals her top plant picks and tips for a productive winter windowsill garden.